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1. Adding a Natural Enemy to Respond to Pest Immigration and Delayed Natural Enemy Releases in Augmentative Biological Control

Author:
Erfan K. Vafaie; H. Brent Pemberton; Mengmeng Gu; David Kerns; Micky D. Eubanks; Kevin M. Heinz
Source:
Environmental entomology 2021 v.50 no.3 pp. 561-570
ISSN:
0046-225X
Subject:
Amblyseius swirskii; Bemisia tabaci; Eretmocerus eremicus; Euphorbia pulcherrima; biological control; entomology; greenhouses; immigration; natural enemies; pests; sweet potatoes
Abstract:
... Whether increased natural enemy density or adding a second natural enemy species will provide superior pest suppression in greenhouse augmentative biological control is unknown for many commercially available natural enemy species. In this study, we use sweetpotato whiteflies, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae), on poinsettias, Euphorbia pulcherrima Willd. ex Klotzsch (Malpighiale ...
DOI:
10.1093/ee/nvab007

2. Aerial environment and light quality during production affect postharvest transpiration of ornamentals

Author:
L. E. Arve; M. T. Terfa; A. Suthaparan; M. S. Poudel; H. R. Gislerod; J. E. Olsen; S. Torre
Source:
Acta horticulturae 2015 v. no.1104 pp. 197-204
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; Hydrangea macrophylla; Rosa; air; blue light; carbon dioxide; climate; humidity; lamps; light quality; ornamental plants; sodium; stomata; transpiration; ultraviolet radiation
Abstract:
... In this study preharvest and postharvest transpiration were measured in the economically important ornamentals hydrangea (Hydrangea macrophylla), poinsettia (Euphorbia pulcherrima) and pot rose (Rosa × hybrida). Pot plants were produced under different air humidity regimes in combination with different CO2 concentrations and light qualities (visible light and UV radiation). The aim was to evaluate ...
DOI:
10.17660/ActaHortic.2015.1104.30

3. Agricultural sustainability estimation of the European photovoltaic greenhouses

Author:
Marco Cossu; Akira Yano; Stefania Solinas; Paola A. Deligios; Maria Teresa Tiloca; Andrea Cossu; Luigi Ledda
Source:
European journal of agronomy 2020 v.118 pp. 126074
ISSN:
1161-0301
Subject:
Euphorbia pulcherrima; agronomy; alternative crops; canopy; crop production; cucumbers; energy; farms; floriculture; greenhouses; precision agriculture; supplementary lighting; sustainable agriculture; sweet peppers; tomatoes; Southern European region
Abstract:
... The integration of the photovoltaic (PV) energy in the greenhouse farm has raised concerns on the agricultural sustainability of this specific agrosystem in terms of crop planning and management, due to the shading cast by the PV panels on the canopy. The PV greenhouse (PVG) can be classified on the basis of the PV cover ratio (PVR), that is the ratio of the projected area of PV panels to the grou ...
DOI:
10.1016/j.eja.2020.126074

4. Agrobacterium tumefaciens-mediated transformation of poinsettia, Euphorbia pulcherrima, with virus-derived hairpin RNA constructs confers resistance to Poinsettia mosaic virus

Author:
Clarke, Jihong Liu; Spetz, Carl; Haugslien, Sissel; Xing, Shaochen; Dees, Merete W.; Moe, Roar; Blystad, Dag-Ragnar
Source:
Plant cell reports 2008 v.27 no.6 pp. 1027-1038
ISSN:
0721-7714
Subject:
Agrobacterium radiobacter; Euphorbia pulcherrima; Northern blotting; Poinsettia mosaic virus; RNA; Southern blotting; color; disease resistance; enzyme-linked immunosorbent assay; genes; molecular weight; nuclear genome; ornamental plants; polymerase chain reaction; sexual reproduction; somatic embryogenesis; somatic embryos; transgenic plants
Abstract:
... Agrobacterium-mediated transformation for poinsettia (Euphorbia pulcherrima Willd. Ex Klotzsch) is reported here for the first time. Internode stem explants of poinsettia cv. Millenium were transformed by Agrobacterium tumefaciens, strain LBA 4404, harbouring virus-derived hairpin (hp) RNA gene constructs to induce RNA silencing-mediated resistance to Poinsettia mosaic virus (PnMV). Prior to trans ...
DOI:
10.1007/s00299-008-0526-9
PubMed:
18327592
PubMed Central:
PMC2413081

5. Akumulacja wolnej proliny w warunkach deficytu wody w liściach wybranych gatunków roślin uprawnych [Free proline accumulation in leaves of cultivated plant species under water deficit conditions]

Author:
Hanna Bandurska
Source:
Acta agrobotanica v.57 no.1-2 pp. 57-67
ISSN:
2300-357X
Subject:
Brassica oleracea var. botrytis; Euphorbia pulcherrima; Hordeum; barley; broccoli; cell membranes; drought; farms; leaves; proline; soil; tissues; water requirement
Abstract:
... The effect of water deficit caused by soil drought on the content of free proline as well as the degree of cell membrane damages in the leaves of three cultivated plant species having different farm usefulness and water requirements have been studied. The used pIants were: poinsettia (Euphorbia pulcherrima Willd., 'Regina' and 'Cortez') grown for decorative purposes, a green vegetable of broccoli ...
DOI:
10.5586/aa.2004.006

6. Anaerobically digested dairy fiber in soilless potting media for poinsettias

Author:
John R. Lamont; George C. Elliott
Source:
International journal of recycling of organics waste in agriculture 2016 v.5 no.2 pp. 173-177
ISSN:
2195-3228
Subject:
Euphorbia pulcherrima; Sphagnum; bulk density; byproducts; electrical conductivity; harvesting; income; leaching; leaves; manganese; methane production; nutrient availability; nutrient content; nutrients; pH; peat; phosphates; plant growth; planting; pollution; sodium; water holding capacity; zinc
Abstract:
... PURPOSE: Sphagnum peat moss has been a primary component of soilless potting media for decades. Concerns over the sustainability of harvesting peat have fostered a search for renewable media components. Anaerobically digested dairy fiber (ADDF), a by-product of methane production, shows promise as an alternative to peat. METHODS: Poinsettias (Euphorbia pulcherrima ‘Classic Red’) were grown in medi ...
DOI:
10.1007/s40093-016-0130-x

7. Anthocyanin Inhibits Propidium Iodide DNA Fluorescence in Euphorbia pulcherrima: Implications for Genome Size Variation and Flow Cytometry

Author:
Bennett, Michael D.; Price, H. James; Johnston, J. Spencer
Source:
Annals of botany 2008 v.101 no.6 pp. 777-790
ISSN:
0305-7364
Subject:
DNA; Euphorbia pulcherrima; Pisum sativum; bracts; buffers; color; environmental factors; flow cytometry; fluorescence; iodides; keracyanin; leaves; nuclear genome; peas; pigmentation; plant tissues; secondary metabolites
Abstract:
... BACKGROUND: Measuring genome size by flow cytometry assumes direct proportionality between nuclear DNA staining and DNA amount. By 1997 it was recognized that secondary metabolites may affect DNA staining, thereby causing inaccuracy. Here experiments are reported with poinsettia (Euphorbia pulcherrima) with green leaves and red bracts rich in phenolics. METHODS: DNA content was estimated as fluore ...
DOI:
10.1093/aob/mcm303
PubMed:
18158306
PubMed Central:
PMC2710214

8. Anthocyanin accumulation in poinsettia leaves and its functional role in photo-oxidative stress

Author:
Julietta Moustaka; Georgia Tanou; Anastasia Giannakoula; Ioannis-Dimosthenis S. Adamakis; Emmanuel Panteris; Eleftherios P. Eleftheriou; Michael Moustakas
Source:
Environmental and experimental botany 2020 v.175 pp. 104065
ISSN:
0098-8472
Subject:
Euphorbia pulcherrima; anthocyanins; antioxidant activity; ascorbate peroxidase; chloroplasts; electrons; hydrogen peroxide; leaves; oxygen; paraquat; photochemistry; photosystem I; photosystem II; radiation resistance; superoxide anion; superoxide dismutase
Abstract:
... The role of anthocyanin accumulation in poinsettia leaves exposed to photo-oxidative stress was evaluated by comparing green (anthocyanin less) and reddish (anthocyanin well equipped) leaves, co-occurring in poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch). For the assessment we compared the photoprotective and antioxidant mechanisms in the two leaf types in response to photo-oxidative stress ...
DOI:
10.1016/j.envexpbot.2020.104065

9. Anthocyanin and chlorophyll content during poinsettia bract development

Author:
Ana Slatnar; Maja Mikulic-Petkovsek; Robert Veberic; Franci Stampar; Valentina Schmitzer
Source:
Scientia horticulturae 2013 v.150 pp. 142-145
ISSN:
0304-4238
Subject:
Euphorbia pulcherrima; bracts; chlorophyll; color; cultivars; developmental stages; high performance liquid chromatography; mass spectrometry; pigments
Abstract:
... The concentration of anthocyanins, chlorophyll a and b were quantified during bract development of three differently colored Euphorbia pulcherrima Willd. cultivars (‘Mars White’, ‘Mars Pink’, and ‘Mira Red’) and bract color was colorimetrically determined. Color parameter a* increased from the first analyzed stage of bract development to the subsequent stages in all poinsettia cultivars. Chlorophy ...
DOI:
10.1016/j.scienta.2012.10.014

10. Antibacterial activity of chitosan solution against Xanthomonas pathogenic bacteria isolated from Euphorbia pulcherrima

Author:
Li, B.; Wang, X.; Chen, R.; Huangfu, W.; Xie, G.
Source:
Carbohydrate polymers 2008 v.72 no.2 pp. 287-292
ISSN:
0144-8617
Subject:
chitosan; antibacterial properties; Xanthomonas axonopodis; Euphorbia pulcherrima; sodium chloride; pH; sterilizing; biopolymers
Abstract:
... The antibacterial activity of chitosan solution against Xanthomonas pathogenic bacteria isolated from Euphorbia pulcherrima was investigated in this study. Results showed that chitosan solution at 0.10 mg/mL markedly inhibited the growth of Xanthomonas pathogenic bacteria from different geographical origins. The antibacterial activity of chitosan solution against the selected strain R22580 of Xant ...
DOI:
10.1016/j.carbpol.2007.08.012

11. Are red leaves photosynthetically active

Author:
Pomar, F.; Ros Barceló, A.
Source:
Biologia plantarum 2007 v.51 no.4 pp. 799-800
ISSN:
0006-3134
Subject:
Euphorbia pulcherrima; anthocyanins; chloroplasts; leaves; photoinhibition
Abstract:
... At irradiances close to those representing a sunny day, red and green leaves of poinsettia (Euphorbia pulcherrima) showed only minor differences in their photosynthetic capacities despite the strong differences in their pigment composition. However, contrarily to green leaves, red leaves did not show inhibition of photosynthesis at high irradiances, because anthocyanins protected chloroplasts from ...
DOI:
10.1007/s10535-007-0164-z

12. Arg-128-Leu Target-Site Mutation in PPO2 Evolves in Wild Poinsettia (Euphorbia heterophylla) with Cross-Resistance to PPO-Inhibiting Herbicides

Author:
Rafael R. Mendes; Hudson K. Takano; Fernando S. Adegas; Rubem S. Oliveira; Todd A. Gaines; Franck E. Dayan
Source:
Weed science 2020 v.68 no.5 pp. 437-444
ISSN:
0043-1745
Subject:
Ambrosia artemisiifolia; Euphorbia heterophylla; Euphorbia pulcherrima; active sites; at-risk population; broadleaf weeds; chloroplasts; cross resistance; cytochrome P-450; dose response; hydrogen peroxide; lactofen; malathion; mitochondria; models; protoporphyrin; protoporphyrinogen oxidase; pyraflufen ethyl; saflufenacil; single nucleotide polymorphism; site-directed mutagenesis; Brazil
Abstract:
... Wild poinsettia (Euphorbia heterophylla L.) is a troublesome broadleaf weed in grain production areas in South America. Herbicide resistance to multiple sites of action has been documented in this species, including protoporphyrinogen oxidase (PPO) inhibitors. We investigated the physiological and molecular bases for PPO-inhibitor resistance in a E. heterophylla population (RPPO) from Southern Bra ...
DOI:
10.1017/wsc.2020.42

13. Artificial light from light emitting diodes (LEDs) with a high portion of blue light results in shorter poinsettias compared to high pressure sodium (HPS) lamps

Author:
M. Ashraful Islam; Goutam Kuwar; Jihong Liu Clarke; Dag-Ragnar Blystad; Hans Ragnar Gislerød; Jorunn E. Olsen; Sissel Torre
Source:
Scientia horticulturae 2012 v.147 no. pp. 136-143
ISSN:
0304-4238
Subject:
Euphorbia pulcherrima; abscission; blue light; bracts; chlorophyll; color; cultivars; dry matter accumulation; dry matter content; flowering; greenhouses; growth chambers; human health; lamps; leaf area; morphogenesis; necrosis; photoperiod; plant growth substances; sodium; stems; temperature
Abstract:
... Strict control of morphogenesis is essential in production of potted poinsettia. Commonly, this is obtained by the use of plant growth retardants (PGRs), often in combination with early morning temperature drops. Due to negative effects on human health and the environment, the use of PGRs is becoming restricted. Also, energy-saving growth regimes and periods of high temperatures limit effective us ...
DOI:
10.1016/j.scienta.2012.08.034

14. Assay system for measurement of denitrification-N loss from ornamental plants potted in peat substrate

Author:
Agner, H.; Schenk, M.K.
Source:
Biology and fertility of soils 2005 v.41 no.3 pp. 199-204
ISSN:
0178-2762
Subject:
Pelargonium zonale; Euphorbia pulcherrima; ornamental plants; peat; denitrification; nitrous oxide; acetylene; horticulture
DOI:
10.1007/s00374-004-0814-7

15. Assessment of cost and performance of Eretmocerus eremicus (Hymenoptera: Aphelinidae) for whitefly (Homoptera: Aleyrodidae) control in commercial poinsettia crops

Author:
Van Driesche, R.G.; Lyon, S.M.; Hoddle, M.S.; Roy, S.; Sanderson, J.P.
Source:
Florida entomologist 1999 v.82 no.4 pp. 570-594
ISSN:
1938-5102
Subject:
Eretmocerus; Trialeurodes vaporariorum; Bemisia argentifolii; parasitoids; biological control agents; biological control; sex ratio; eclosion; parasitism; population density; cost analysis; insecticides; chemical control; Euphorbia pulcherrima; greenhouses

16. Association of tomato yellow leaf curl virus — Oman strain with the leaf curl and yellow mosaic symptoms on papaya and wild poinsettia in Oman

Author:
Q. M. I. Haq; S. S. Sohrab; J. K. Brown; A. Al-Harrasi
Source:
Canadian journal of plant pathology 2022 v.44 no.3 pp. 465-472
ISSN:
1715-2992
Subject:
Bemisia tabaci; Betasatellite (genus); Carica papaya; DNA; Euphorbia pulcherrima; Tomato yellow leaf curl virus; genome; host plants; leaf curling; leaves; nucleotide sequences; phylogeny; plant pathology; sequence analysis; Iran; Oman; Saudi Arabia; Sudan
Abstract:
... Begomoviruses (Geminiviridae) cause severe diseases in several crops, often causing significant losses due to reduced yield and quality. These viruses are easily transmitted by the whitefly (Bemisia tabaci) vector. Begomovirus-like symptoms were observed in wild poinsettia (Euphorbia cyathophora) and cultivated papaya (Carica papaya) plants in the Nizwa, Al-Dakhliya and Al-Batinah regions of Oman, ...
DOI:
10.1080/07060661.2021.1995500

17. Attraction of Trialeurodes vaporariorum and Bemisia argentifolii to eggplant, and its potential as a trap crop for whitefly management on greenhouse poinsettia

Author:
Lee, Doo-Hyung; Nyrop, Jan P.; Sanderson, John P.
Source:
Entomologia experimentalis et applicata 2009 v.133 no.2 pp. 105-116
ISSN:
0013-8703
Subject:
Bemisia argentifolii; Euphorbia pulcherrima; Solanum melongena; Trialeurodes vaporariorum; adults; cages; eggplants; greenhouse experimentation; greenhouses; mortality; pests; simulation models; trap crops
Abstract:
... Trap cropping, though promising, has had little evaluation in greenhouses. This study evaluated eggplant, Solanum melongena L. (Solanaceae), as a trap crop for two whitefly species, Trialeurodes vaporariorum (Westwood) and Bemisia argentifolii Bellows '' Perring (both Hemiptera: Aleyrodidae), on greenhouse poinsettia, Euphorbia pulcherrima Willd. ex Koltz (Euphorbiaceae). Because the two whitefly ...
DOI:
10.1111/j.1570-7458.2009.00920.x

18. Avoidance of natural enemies by adult whiteflies, Bemisia argentifolii, and effects on host plant choice

Author:
Doo-Hyung Lee; Jan P. Nyrop; John P. Sanderson
Source:
Biological control 2011 v.58 no.3 pp. 302-309
ISSN:
1049-9644
Subject:
Amblyseius swirskii; Bemisia argentifolii; Delphastus catalinae; Encarsia formosa; Euphorbia pulcherrima; adults; avoidance behavior; cucumbers; host plants; insects; natural enemies; parasitoids; predation; predators; risk
Abstract:
... In this study we asked whether, in the context of a trap crop system, differential predation risks among plants influence host choice patterns of adult whiteflies, Bemisia argentifolii. We investigated whether adult whiteflies avoid natural enemies inhabiting poinsettia (a cash crop) and whether this behavior can be used to increase the movement of whiteflies to cucumber (a trap crop). The potenti ...
DOI:
10.1016/j.biocontrol.2011.06.005

19. Axillary bud inhibition induced by young leaves or bract in Euphorbia pulcherrima willd

Author:
Weiss, D.; Shillo, R.
Source:
Annals of botany 1988 v.62 no.4 pp. 435-440
ISSN:
0305-7364
Subject:
Euphorbia pulcherrima; leaves; buds; naphthaleneacetic acid; indole acetic acid
Abstract:
... In plants held under long days in the vegetative stage, young expanding leaves of poinsettia (Euphorbia pulcherrima Willd. ‘Brilliant Diamond’) are the main source of axillary bud inhibition, while the apical bud, which includes the meristem, primordial leaves and small unfolded leaves, is a secondary inhibition source. Removal of these expanding leaves resulted in rapid release and growth of axil ...
DOI:
10.1093/oxfordjournals.aob.a087676

20. Bacterial Stem Rot of Poinsettia Caused by a Dickeya sp. (Pectobacterium chrysanthemi) in China

Author:
Rungnapha, K.; Yu, S.H.; Xie, G.L.
Source:
Plant disease 2008 v.92 no.7 pp. 1135
ISSN:
0191-2917
Subject:
Gram-negative bacteria; nursery crops; signs and symptoms (plants); Euphorbia pulcherrima; potted foliage plants; polymerase chain reaction; bacterial diseases of plants; disease outbreaks; pathogen identification; pathogenicity; Erwinia chrysanthemi; new geographic records; disease diagnosis; China
DOI:
10.1094/PDIS-92-7-1135B

21. Bedding plants in the landscape of Athens: data on their use and opinions of citizens and municipal employees concerning their use at various green spaces of the city

Author:
M. Chronopoulou; M. Papafotiou
Source:
Acta horticulturae 2017 no.1189 pp. 59-64
ISSN:
0567-7572
Subject:
Antirrhinum majus; Begonia cucullata var. hookeri; Chrysanthemum carinatum; Cyclamen persicum; Dianthus barbatus; Dimorphotheca sinuata; Euphorbia pulcherrima; Gazania rigens; Matthiola incana; Pelargonium zonale; Petunia hybrida; Salvia splendens; Tagetes erecta; attitudes and opinions; bedding plants; celebrations; exhibitions; green infrastructure; human resources; landscapes; planning; questionnaires; spring; surveys; Greece
Abstract:
... The last decade over 2.250.000 bedding plants were planted at various green spaces in the city of Athens. Especially during the period of the Olympic Games, Athens 2004, 865.000 bedding plants were planted in the city's flowerbeds. The last decade, the most frequently used bedding plant species by the Directorate of Green and Environment of the Municipality of Athens (DGEMA) were: Tagetes erecta, ...
DOI:
10.17660/ActaHortic.2017.1189.11

22. Bemisia tabaci Biotype Q Determined for the First Time on Poinsettia Crops in Finland and Sweden

Author:
Lemmetty Anne; Vänninen Irene
Source:
Annales zoologici Fennici 2014 v.51 no.6 pp. 501-506
ISSN:
0003-455X
Subject:
Bemisia tabaci; DNA; Euphorbia pulcherrima; adults; biotypes; crops; ethanol; greenhouses; insecticides; pest control; pests; polymerase chain reaction; quarantine; restriction fragment length polymorphism; sticky traps; Finland; Sweden
Abstract:
... We surveyed 13 Finnish and 13 Swedish poinsettia greenhouses in 2006 for Bemisia tabaci biotype Q (currently B. tabaci Mediterranean) and determined the biotype status of B. tabaci populations with PCR followed by an RFLP assay. We collected approximately 100 adult whiteflies from yellow sticky traps or from plants and stored them in 80% ethanol until DNA extraction. Total nucleic acids of two to ...
DOI:
10.5735/086.051.0605

23. Bemisia tabaci: The current situation in the UK and the prospect of developing strategies for eradication using entomopathogens

Author:
Cuthbertson, Andrew G.S.; Blackburn, Lisa F.; Eyre, Dominic P.; Cannon, Raymond J.C.; Miller, Judith; Northing, Phil
Source:
Insect science 2011 v.18 no.1 pp. 1-10
ISSN:
1672-9609
Subject:
Bemisia tabaci; insecticides; entomopathogenic nematodes; pesticide application; Euphorbia pulcherrima; Steinernema feltiae; biological control agents; entomopathogenic fungi; environmental factors; pests; integrated pest management; crops; insect control; Geminiviridae; United Kingdom
Abstract:
... The sweetpotato whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) remains a serious threat to crops worldwide. The damaging B-biotype is of specific economic concern because it is an effective vector of over 111 viruses from several families, particularly geminiviruses. Bemisia tabaci is regularly intercepted on plants coming into the UK where it is subjected to a policy of eradication ...
DOI:
10.1111/j.1744-7917.2010.01383.x

24. Biocontrol of rhizoctonia stem and root rot of poinsettia with Burkholderia cepacia and binucleate rhizoctonia

Author:
Hwang, J.; Benson, D.M.
Source:
Plant disease 2002 v.86 no.1 pp. 47-53
ISSN:
0191-2917
Subject:
Euphorbia pulcherrima; Rhizoctonia; Thanatephorus cucumeris; biological control; biological control agents; bacteria; rooting; stems; fungal diseases of plants
Abstract:
... Strategies for applying Burkholderia cepacia (strain 5.5B) and Pesta formulations of binucleate Rhizoctonia (BNR) isolates (BNR621 and P9023) were evaluated for biocontrol of Rhizoctonia stem and root rot of poinsettia caused by R. solani. During propagation, one application of B. cepacia suppressed stem rot, while application of either isolate of BNR did not. In contrast, after transplanting root ...
DOI:
10.1094/PDIS.2002.86.1.47

25. Biodegradable pots for Poinsettia cultivation: Agronomic and technical traits

Author:
Donato Castronuovo; Pietro Picuno; Carlo Manera; Antonio Scopa; Adriano Sofo; Vincenzo Candido
Source:
Scientia horticulturae 2015 v.197 pp. 150-156
ISSN:
0304-4238
Subject:
Euphorbia pulcherrima; biodegradability; color; colorimetry; floriculture; greenhouses; plant fibers; plastics; polyesters; polypropylenes; potted flowering plants; risk; tensile strength; Italy; North America
Abstract:
... A large quantity of plastics is utilized by floriculture and especially for the production of flowering potted plants, where the pot is a very important component of the whole marketable product. Among these, poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch) is a typical example of ornamental potted-plant characterized to have a relatively long crop cycle, a strong demand, especially in Europe ...
DOI:
10.1016/j.scienta.2015.09.025

26. Biological Cycle of the Fungus Gnat Bradysia sp.¹ in a Lily (Lilium spp.) Crop

Author:
Florinda García-Pérez; Jaime Dorantes-Jiménez; César Sánchez-Hernández; Sofía Ivet Soto-García; Evert Villanueva-Sánchez
Source:
Southwestern entomologist 2021 v.46 no.4 pp. 971-976
ISSN:
0147-1724
Subject:
Agave; Bradysia; Euphorbia pulcherrima; Lilium; adults; eggs; entomologists; forests; fungi; fungus gnats; larvae; ornamental plants; oviposition; pupae; relative humidity; Mexico
Abstract:
... Bradysia sp. Frey, 1948 (Diptera: Sciaridae) damages mostly ornamentals, vegetables, and Agave spp. in greenhouses and nurseries. In Mexico, study has been infrequent, and only the identity of species of fungus gnats associated with crops of poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch) and forest nurseries has been reported. To contribute to knowledge of the species, an experiment was don ...
DOI:
10.3958/059.046.0418

27. Biological control of Bemisia argentifolii (Homoptera: Aleyrodidae) infesting Euphorbia pulcherrima: evaluations of releases of Encarsia luteola (Hymenoptera: Aphelinidae) and Delphastus pusillus (Coleoptera: Coccinellidae)

Author:
Heinz, K.M.; Parrella, M.P.
Source:
Environmental entomology 1994 v.23 no.5 pp. 1346-1353
ISSN:
0046-225X
Subject:
Euphorbia pulcherrima; Bemisia; Encarsia; parasitoids; Coccinellidae; natural enemies; biological control; insect control; greenhouse production; predators
Abstract:
... Releases of Encarsia luteola Howard and Delphastus pusillus LeConte were evaluated for their ability to control Bemisia argentifolii Bellows & Perring, n. sp. greenhouse-grown poinsettias. Three treatments, each replicated three times, were used to assess the impact of natural enemy releases on B. argentifolii populations: (1) a complete exclusion of natural enemies cage, (2) an identical exclusio ...
DOI:
10.1093/ee/23.5.1346

28. Biological control of Bemisia argentifolii (Homoptera: Aleyrodidae) on poinsettia with inundative releases of Encarsia formosa Beltsville strain (Hymenoptera: Aphelinidae): can parasitoid reproduction augment inundative releases?

Author:
Hoddle, M.S.; Van Driesche, R.G.; Sanderson, J.P.
Source:
Journal of economic entomology 1997 v.90 no.4 pp. 910-924
ISSN:
0022-0493
Subject:
life tables; parasitism; parasitoids; reproduction; Euphorbia pulcherrima; Bemisia argentifolii; population density; Encarsia formosa; population growth; insect control; mortality; biological control
Abstract:
... The effectiveness of inundative releases of the parasitoid Encarsia formosa Beltsville strain for control of Bemisia argentifolii Bellows & Perring on poinsettia (Euphorbia pulcherrima Willd. ex Koltz.) was determined in replicated experimental greenhonses. We evaluated 2 release rates of E. formosa Beltsville strain: a low release rate (1 wasp per plant per week, released in 2 greenhouses) and a ...
DOI:
10.1093/jee/90.4.910

29. Biological control of glasshouse sciarid flies (Bradysia spp.) with the predatory mite, Hypoaspis miles, on cyclamen and poinsettia

Author:
Chambers, R.J.; Wright, E.M.; Lind, R.J.
Source:
Biocontrol science and technology 1993 v.3 no.3 pp. 285-293
ISSN:
0958-3157
Subject:
Euphorbia pulcherrima; ornamental plants; insect control; greenhouse production; horticultural crops; predators
Abstract:
... The predatory mite Hypoaspis miles was released from laboratory cultures into young crops of pot-grown cyclamen and poinsettia in six small glasshouses. Five different rates of release were used together with a control house. In both crops, rates of 55 mites per pot and above gave satisfactory control of glasshouse sciarids with no later resurgence of the pest. Mites persisted on the pots until th ...
DOI:
10.1080/09583159309355283

30. Biology and life table of Eotetranychus lewisi (Acari: Tetranycidae) on Prunus persica cultivars from the Ecuadorian Andean region

Author:
César Miño; Rita Santana; Olguer León; Yelitza Colmenárez; Adriana Villa-Murillo; Carlos Vásquez
Source:
International journal of acarology 2022 v.48 no.3 pp. 275-278
ISSN:
1945-3892
Subject:
Eotetranychus; Euphorbia pulcherrima; Prunus persica; acarology; adulthood; adults; cultivars; eggs; fecundity; females; life tables; longevity; mites; peaches; pests; Andes region; Ecuador
Abstract:
... Eotetranychus lewisi (McGregor) is an important pest mite found in peach crops. This pest has recently been reported in the province of Tungurahua, Ecuador, little information is available. The biology and life table of E. lewisi using three peach cultivars (Zapallo, Blanco Abridor, and Tejón) was evaluated under laboratory conditions (19°C, 45% R.H., and 12:12 L.D). Mites were collected from Euph ...
DOI:
10.1080/01647954.2022.2060305

31. Blight of prostrate spurge and cultivated poinsettia caused by Amphobotrys ricini

Author:
Holcomb, G.E.; Jones, J.P.; Wells, D.W.
Source:
Plant disease 1989 v.73 no.1 pp. 74-75
ISSN:
0191-2917
Subject:
Euphorbia maculata; Euphorbia pulcherrima; Euphorbia heterophylla; Euphorbia hirta; Ricinus communis; Deuteromycotina; blight; pathogenicity; fungal diseases of plants
DOI:
10.1094/PD-73-0074

32. A Branch-inducing Phytoplasma in Euphorbia pulcherrima is Associated with Changes in Expression of Host Genes

Author:
Nicolaisen, M.; Horvath, D.P.
Source:
Phytopathologische Zeitschrift 2008 v.156 no.7-8 pp. 403-407
ISSN:
0931-1785
Subject:
Arabidopsis thaliana; Euphorbia pulcherrima; Phytoplasma; apical dominance; branching; gene expression regulation; genes; host-pathogen relationships; microarray technology; ornamental plants; phenotype; phytoplasmal diseases; polymerase chain reaction
Abstract:
... Phytoplasma infection causes a desirable branching phenotype in the ornamental plant Euphorbia pulcherrima by releasing apical dominance. Four E. pulcherrima genes specifically regulated during phytoplasma infection were identified using a combination of differential display of cDNA-polymerase chain reaction (PCR) products and microarray analysis. According to BLAST searches the possible functions ...
DOI:
10.1111/j.1439-0434.2007.01372.x

33. Calcium-related plant physiological disorders©

Author:
Combrink, N.J.J.
Source:
Acta horticulturae 2013 no.1014 pp. 7-11
ISSN:
0567-7572
Subject:
shelf life; apples; watermelons; necrosis; potatoes; peppers; polysaccharides; tomatoes; celery; stems; cell walls; transpiration; bitter pit; calcium; temperature; xylem; neutralization; oxalates; ions; Euphorbia pulcherrima; deficiency diseases; flowers
Abstract:
... Calcium (Ca) is dependent on xylem translocation; it moves with the transpiration stream and binds with polysaccharides to strengthen cell walls, needed to produce firm fruit tissue, good quality and a long shelf life. Calcium prevents cell wall degradation, “leaky” membranes and premature senescence. Calcium deficiency disorders include “brown fleck” and poor keeping quality of potatoes, weak flo ...

34. Changes in Fungal and Oomycete Community Composition Following Irrigation Reductions Aimed at Increasing Water Use Efficiency in a Containerized Nursery Crop

Author:
Johanna Del Castillo Múnera; Amisha T. Poret-Peterson; Cassandra L. Swett
Source:
Phytobiomes journal 2022 v.6 no.3 pp. 247-260
ISSN:
2471-2906
Subject:
DNA barcoding; Euphorbia pulcherrima; Fusarium; Phoma; Phytophthora; Plectosphaerella; community structure; drought tolerance; fungal communities; fungi; health status; irrigation; phytobiome; rhizosphere; root rot; volumetric water content; water shortages; water use efficiency
Abstract:
... Ornamental production in the United States spans an estimated 267,000 ha and uses approximately 169,000 m³ of water yearly. Ornamental growers, particularly those with air-closed systems, are interested in implementing reduced irrigation technologies such as sensor-controlled irrigation systems to improve water use efficiency in response to water scarcity. To evaluate phytobiome impacts, we utiliz ...
DOI:
10.1094/PBIOMES-09-21-0058-R

35. Characteristics of phosphorus uptake kinetics of poinsettia and marigold

Author:
Khandan-Mirkohi, Azizollah; Schenk, Manfred K.
Source:
Scientia horticulturae 2009 v.122 no.2 pp. 251-257
ISSN:
0304-4238
Subject:
Euphorbia pulcherrima; Tagetes patula; ornamental plants; roots; phosphorus; nutrient uptake; plant growth; developmental stages; air temperature; light intensity; photoperiod; climatic factors; nutrient requirements; crop production; phosphorus fertilizers; fertilizer rates; plant nutrition
Abstract:
... In a previous experiment it has been found that maximum uptake rate (I max), Michaelis constant (K m), and minimum nutrient concentration (C min) as plant physiological characteristics may be important for phosphorus (P) uptake in peat-substrate. Thus, variation of P uptake parameters was evaluated with a series of depletion studies for poinsettia (Euphorbia pulcherrima) and marigold (Tagetes patu ...
DOI:
10.1016/j.scienta.2009.05.009

36. Characterization of droplet impact and deposit formation on leaf surfaces

Author:
Xiang Dong; Heping Zhu; Xuejun Yang
Source:
Pest management science 2015 v.71 no.2 pp. 302-308
ISSN:
1526-498X
Subject:
Dracaena fragrans; Euphorbia pulcherrima; Zea mays; biological control; droplets; hydrophilicity; hydrophobicity; leaves; mechanics; nonionic surfactants; pesticides; wastes
Abstract:
... BACKGROUND: Elucidation of droplet dynamic impact and deposit formation on leaf surfaces would assist in modifying application strategies potentially to improve biological control efficiency and minimize pesticide waste. RESULTS: The mechanics of the three‐dimensional droplet impact and formation process on hydrophilic and hydrophobic leaf surfaces was investigated with a system that independently ...
Handle:
10113/61404
DOI:
10.1002/ps.3806
CHORUS:
10.1002/ps.3806

37. Chemical class rotations for control of Bemisia tabaci (Hemiptera: Aleyrodidae) on poinsettia and their effect on cryptic species population composition

Author:
Cindy L McKenzie; Vivek Kumar; Cristi L Palmer; Ronald D Oetting; Lance S Osborne
Source:
Pest management science 2014 v.70 no.10 pp. 1573-1587
ISSN:
1526-498X
Subject:
plant viruses; dinotefuran; Bemisia tabaci; Euphorbia pulcherrima; host plants; markets; biotypes; resistance management; active ingredients; insecticide resistance; insects; soil drenching; adults
Abstract:
... BACKGROUND: Bemisia tabaci, a polyphagous insect with over 900 host plants, is an effective vector of more than 100 plant viruses. Being highly fecund, B. tabaci has the potential to develop insecticide resistance rapidly, as demonstrated by reports of use failures with MEAM1 and MED cryptic species (commonly known as biotypes B and Q respectively). Insecticide resistance management is a key compo ...
DOI:
10.1002/ps.3736
PubMed:
24464725

38. Commercial adoption of biological control-based IPM for whiteflies in poinsettia

Author:
Van Driesche, R.G.; Lyon, S.
Source:
Florida entomologist 2003 v.86 no.4 pp. 481-483
ISSN:
0015-4040
Subject:
cultivars; parasitoids; potted flowering plants; insect control; application timing; biological control agents; Bemisia argentifolii; Euphorbia pulcherrima; greenhouse production; economic costs; insect growth regulators; population density; integrated pest management; commercial horticulture; Eretmocerus eremicus; biological control
DOI:
10.1653/0015-4040(2003)086[0481:CAOBCI]2.0.CO;2

39. Comparative biology, morphometrics, and development of two populations of Bemisia tabaci (Homoptera: Aleyrodidae) on cotton and poinsettia

Author:
Bethke, J.A.; Paine, T.D.; Nuessly, G.S.
Source:
Annals of the Entomological Society of America 1991 v.84 no.4 pp. 407-411
ISSN:
0013-8746
Subject:
Gossypium hirsutum; Euphorbia pulcherrima; Bemisia tabaci; biological development; body measurements
DOI:
10.1093/aesa/84.4.407

40. Comparing Greenhouse Handgun Delivery to Poinsettias by Spray Volume and Quality

Author:
Derksen, Richard C.; Frantz, Jonathan; Ranger, Christopher M.; Locke, James C.; Zhu, Heping; Krause, Charles R.
Source:
Transactions of the ASABE 2008 v.51 no.1 pp. 27-35
Subject:
Euphorbia pulcherrima; greenhouse production; foliar spraying; spray deposition; canopy; leaves; spatial variation; droplet studies; pesticide application; insecticides; fungicides; sprayers
Abstract:
... Insecticide and fungicide labels often lack specific recommendations on the spray volume and spray droplet sizes that will provide the most efficacious pest management of ornamental pest problems. A greenhouse trial was established to determine differences in spray retention in a poinsettia canopy between single-nozzle, handgun applications made using three different spray volumes and three differ ...
Handle:
10113/19578

41. Comparison of Pseudomonas species and application techniques for biocontrol of Rhizoctonia stem rot of poinsettia

Author:
Cartwright, D.K.; Benson, D.M.
Source:
Plant disease 1995 v.79 no.3 pp. 309-313
ISSN:
0191-2917
Subject:
fungal antagonists; Pseudomonas fluorescens; Burkholderia cepacia; Euphorbia pulcherrima; fungal diseases of plants; Thanatephorus cucumeris; growing media; spraying; biological control
Abstract:
... Pseudomonas cepacia (strain 5.5B) was compared with other strains of P. cepacia, P. fluorescens, P. chlororaphis, and P. aureofaciens for biocontrol of Rhizoctonia stem rot of poinsettia caused by Rhizoctonia solani in polyfoam rooting cubes. Over a 2-wk period, complete control (0% infection) of stem rot was achieved with P. cepacia, strain 5.5B. With other strains of P. cepacia, infection ranged ...
DOI:
10.1094/PD-79-0309

42. Comparison of Pyroxasulfone to Soil Residual Herbicides for Glyphosate Resistant Palmer Amaranth Control in Glyphosate Resistant Soybean

Author:
Timothy L. Grey; George S. Cutts; Larry J. Newsome; Sanford H. Newell
Source:
Crop management 2013 v.12 no.1 pp. -
ISSN:
1543-7833
Subject:
Amaranthus palmeri; Desmodium tortuosum; Euphorbia heterophylla; Euphorbia pulcherrima; Glycine max; Jacquemontia tamnifolia; Senna obtusifolia; acetolactate synthase; biosynthesis; crop production; crop rotation; crops; enzyme inhibitors; flumioxazin; fomesafen; glyphosate; glyphosate resistance; herbicide application; herbicide residues; mechanism of action; metolachlor; metribuzin; oxidoreductases; photosystem II; pyroxasulfone; soil; soybeans; stand density; very long chain fatty acids; weed control; weeds; Southeastern United States
Abstract:
... Glyphosate- and acetolactate synthase (ALS)-resistant Palmer amaranth (Amaranthus palmeri S. Wats.) has become the most common and troublesome weed in multiple crops in the southeast United States. Pyroxasulfone inhibits biosynthesis of very long chain fatty acids (VLCFAs) and can provide soil residual weed control. However, there has been little information about pyroxasulfone for control of weed ...
DOI:
10.1094/CM-2013-0032-RS

43. Comparison of biological parameters between the invasive B biotype and a new defined Cv biotype of Bemisia tabaci (Hemiptera: Aleyradidae) in China

Author:
Bao-Li Qiu; Fang Dang; Shao-Jian Li; Muhammad Z. Ahmed; Feng-Liang Jin; Shun-Xiang Ren; Andrew G. S. Cuthbertson
Source:
Journal of pest science 2011 v.84 no.4 pp. 419-427
ISSN:
1612-4758
Subject:
immatures; ornamental plants; Bemisia tabaci; host range; survival rate; tomatoes; longevity; collard greens; Euphorbia pulcherrima; fecundity; cucumbers; host plants; biotypes; pests; host preferences; eggs; Hibiscus; China
Abstract:
... The sweetpotato whitefly, Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) is a widely distributed and destructive agricultural pest on various host plants. The biology of two biotypes of B. tabaci: the invasive B and a new defined Cv biotype, on a range of host plants (hibiscus, laurel, poinsettia, collard, cucumber and tomato) were studied in the laboratory. Results revealed that the developm ...
DOI:
10.1007/s10340-011-0367-0

44. Comparison of handgun and boom spray delivery systems for greenhouses

Author:
Derksen, R.C.; Ranger, C.M.; Canas, L.A.; Locke, J.C.; Zhu, H.; Krause, C.R.
Source:
Paper 2009 no.097453 pp. -
ISSN:
0149-9890
Subject:
spray booms; pesticide application; Euphorbia pulcherrima; greenhouse production; fan nozzles; sprayers; droplet studies
Abstract:
... Handgun applications are popular general purpose greenhouse sprayers. However, there are few recommendations on how to use them to treat plant benches. Handgun applications made from one side can also result in significant differences in deposits between the side of the plant facing the spray stream and the opposite side. The objectives of this research were to determine how handgun spraying and b ...
Handle:
10113/40790

45. Comparison of hydroponic solutions for poinsettia nutritional studies

Author:
Whipker, B.E.; Hammer, P.A.
Source:
Journal of plant nutrition 1998 v.21 no.3 pp. 531-543
ISSN:
0190-4167
Subject:
nitric acid; cultivars; calcium nitrate; nutrient content; application rate; stems; Euphorbia pulcherrima; calcium; potassium nitrate; hydroponics; magnesium; potassium; nutrient solutions; trace elements; ammonium nitrate; roots; leaves; phosphorus
Abstract:
... Poinsettia cultivars Supjibi and Freedom were grown in eight hydroponic solutions to develop a baseline solution for further nutritional studies. Four solutions contained nitrogen (N) from Ca(NO3)2.4H2O and KNO3 (denoted as -NH4) and four contained Ca(NO3)2.4H2O, KNO3, nitric acid, and NH4NO3 as the N sources (denoted as +NH4). The four -NH4 and +NH4 solutions were further divided by an 1X or 2X r ...
DOI:
10.1080/01904169809365422

46. Comparison of product carbon footprint standards with a case study on poinsettia (Euphorbia pulcherrima)

Author:
Eveli Soode; Gabriele Weber-Blaschke; Klaus Richter
Source:
international journal of life cycle assessment 2013 v.18 no.7 pp. 1280-1290
ISSN:
0948-3349
Subject:
Euphorbia pulcherrima; carbon; carbon dioxide; carbon footprint; case studies; climate; developmental stages; electricity; emissions; fuels; greenhouse gases; heat; product life cycle; wood chips; Germany
Abstract:
... PURPOSE: A method to quantify the climate impact of products called product carbon footprint (PCF) has been gaining popularity in recent years. However, variations of this method have resulted in several competing standards to guide the carbon calculation process. The aim of the current paper was to compare PCF results when calculated according to the different standards. METHODS: The three leadin ...
DOI:
10.1007/s11367-013-0575-3

47. Comparison of three controlled-release nitrogen fertilizers in greenhouse crop production

Author:
Blythe, E.K.; Mayfield, J.L.; Wilson, B.C.; Vinson, E.L. III.; Sibley, J.L.
Source:
Journal of plant nutrition 2002 v.25 no.5 pp. 1049-1061
ISSN:
0190-4167
Subject:
horticultural crops; interspecific variation; Ficus benjamina; Euphorbia pulcherrima; greenhouse production; nutrient uptake; leaching; Nephrolepis exaltata; urea; potassium sulfate; leachates; triple superphosphate; application rate; Begonia; nitrogen fertilizers
Abstract:
... Controlled-release nitrogen fertilizers allow growers to reduce nitrogen loss from leaching in comparison to soluble formulations. Plant growth and nitrogen leaching during greenhouse production of Begonia x semperflorens-cultorum Hort. cv. "Brandy" (Begonia), Euphorbia pulcherrima Willd. ex Klotzch cv. "Freedom Red" (Poinsettia), Ficus benjamina L., and Nephrolepis exaltata (L.) Schott cv. "Bosto ...
DOI:
10.1081/PLN-120003938

48. Composting and value-added utilization of manure from a wine finishing facility

Author:
Keener, H.M.; Elwell, D.L.; Ekinci, K.; Hoitink, H.A.J.
Source:
Compost science & utilization 2001 v.9 no.4 pp. 312-321
Subject:
Euphorbia pulcherrima; Pythium; Sphagnum; ammonia; bark; carbon dioxide; composted manure; composting; drying; finishing; industry; ornamental plants; peat; physicochemical properties; pig manure; root rot; swine; toxicity; value added; wood shavings; woody plants
Abstract:
... Swine manure and wood shavings used as a drying bed were removed from a High-Rise hog facility following two production cycles. The manure was composted in aerated pilot-scale vessels for four weeks or a mechanically turned windrow for ten weeks. Total dry matter losses during the pilot-scale studies were 30 and 32.5 % for continuously and intermittently aerated systems, respectively. Compost from ...
DOI:
10.1080/1065657X.2001.10702050

49. Conidial germination, infection structure formation, and early colony development of powdery mildew on poinsettia

Author:
Celio, G.J.; Hausbeck, M.K.
Source:
Phytopathology 1998 v.88 no.2 pp. 105-113
ISSN:
0031-949X
Subject:
temperature; plant diseases and disorders; conidia; Euphorbia pulcherrima; developmental stages; greenhouse production; disease control; pathogenesis; pathogenicity; plant pathogenic fungi; spore germination; ultrastructure; Oidium; leaves
Abstract:
... Powdery mildew disease on poinsettias (Euphorbia pulcherrima) growing in commercial greenhouses was first observed in the United States in 1990 and has become an economically significant problem for poinsettia growers in the Midwest and northern United States since 1992. The temporal development of infection structures produced by conidial germ tubes of the pathogen (Oidium sp.) and the effect of ...
DOI:
10.1094/PHYTO.1998.88.2.105
PubMed:
18944978

50. Control growth of Euphorbia pulcherrima Willd. ex Klotzsch ‘Sonora Jingle’ and ‘Sonora White’ using ethephon

Author:
Youping Sun; Lois Berg Stack; Donglin Zhang; Zhanying Gu
Source:
Horticulture, environment and biotechnology 2011 v.52 no.4 pp. 351
ISSN:
2211-3452
Subject:
Euphorbia pulcherrima; adverse effects; color; container-grown plants; ethephon; phytotoxicity; plant growth substances
Abstract:
... Ethephon was sprayed on Euphorbia pulcherrima Willd. ex Klotzsch (poinsettia) ‘Sonora Jingle’ and ‘Sonora White’ to control their height and produce more compact potted plants. The results showed that Ethephon could effectively control the growth of ‘Sonora Jingle’ and ‘Sonora White’ poinsettia. Height was reduced by was 33.4 ± 0.8% for ‘Sonora Jingle’ and 30.8 ± 1.3% for ‘Sonora White’ poinsettia ...
DOI:
10.1007/s13580-011-0219-y