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1. 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

2. 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

3. 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

4. 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

5. Development of a multiplex amplicon‐sequencing assay to detect low‐frequency mutations in poinsettia (Euphorbia pulcherrima) breeding programmes

Author:
Vinicius Vilperte; Robert Boehm; Thomas Debener
Source:
Plant breeding 2021 v.140 no.3 pp. 497-507
ISSN:
0179-9541
Subject:
Euphorbia pulcherrima; anthocyanins; color; container-grown plants; homozygosity; mutants; mutation; vacuoles
Abstract:
... Poinsettia is an economically important ornamental potted plant in which certain bract colour variants are often obtained by mutation breeding. Previously, in poinsettia, we identified Bract1, a GST gene involved in the sequestration and transport of anthocyanins to the vacuole. This gene carries a short, highly mutable 4‐bp repeat in its coding region. Loss of one repeat unit leads to a loss of f ...
DOI:
10.1111/pbr.12925

6. Efficacy of Selected Insecticides as Replacement for Neonicotinoids in Managing Sweetpotato Whitefly on Poinsettia

Author:
Gunbharpur Singh Gill; Juang Horng Chong
Source:
HortTechnology 2021 v.31 no.6 pp. 745-752
ISSN:
1943-7714
Subject:
Bemisia tabaci; Euphorbia pulcherrima; adults; cyantraniliprole; dinotefuran; flonicamid; foliar spraying; imidacloprid; sulfoxaflor; sweet potatoes
Abstract:
... Management of sweetpotato whitefly (Bemisia tabaci), one of the most economically important pests of poinsettia (Euphorbia pulcherrima), relies heavily on neonicotinoid insecticides. Growers are seeking insecticide alternatives to neonicotinoids due to market demands. Although several systemic and translaminar insecticides have been suggested as alternatives to neonicotinoids, no published study h ...
DOI:
10.21273/HORTTECH04853-21

7. Evaluating Fungicide Selections to Manage Pythium Root Rot on Poinsettia Cultivars with Varying Levels of Partial Resistance

Author:
Emma C. Lookabaugh; James P. Kerns; Barbara B. Shew
Source:
Plant disease 2021 v.105 no.6 pp. 1640-1647
ISSN:
0191-2917
Subject:
Euphorbia pulcherrima; Pythium aphanidermatum; Trichoderma; azoxystrobin; cultivars; cyazofamid; etridiazole; fenamidone; greenhouses; mefenoxam; mycelium; potassium phosphite; propamocarb; pyraclostrobin; quinones; root rot; sanitation; North Carolina
Abstract:
... Pythium aphanidermatum is the predominant species causing Pythium root rot of commercially grown poinsettia (Euphorbia pulcherrima Willd. ex Kotzch) in North Carolina. Pythium root rot is managed primarily through a combination of sanitation practices and preventative fungicide applications of mefenoxam or etridiazole. Insensitivity to mefenoxam is common but growers continue to rely on it from la ...
DOI:
10.1094/PDIS-04-20-0807-RE

8. First Report of Root-Knot Nematode Meloidogyne enterolobii on Poinsettia ‘Luv U Pink’ in Taiwan

Author:
C.-C. Liang; P. J. Chen
Source:
Plant disease 2022 v.106 no.6 pp. 1764
ISSN:
0191-2917
Subject:
Euphorbia pulcherrima; European Union; Meloidogyne enterolobii; body length; females; genes; greenhouses; haplotypes; morphometry; phylogeny; root-knot nematodes; sequence analysis; stylets; tail; China; Guatemala; Mexico; Taiwan
Abstract:
... Poinsettias (Euphorbia pulcherrima Willd. ex Klotzsch.) originated in southern Mexico and northern Guatemala and are the most valuable potted flowering plant in the spurge family (Euphorbiaceae). The European Union and the United States are the two biggest poinsettia markets (Taylor et al. 2011), with a wholesale value of $153 million in the United States in 2019. Root-knot galls of the poinsettia ...
DOI:
10.1094/PDIS-09-21-1899-PDN

9. First Report of a ‘Candidatus Phytoplasma pruni’-Related Strain Associated with Commercial Poinsettias in Canada

Author:
Y. Arocha Rosete; R. Michelutti; J. A. Scott
Source:
Plant disease 2021 v.105 no.10 pp. 3287
ISSN:
0191-2917
Subject:
Candidatus Phytoplasma pruni; Euphorbia pulcherrima; Poinsettia latent virus; Poinsettia mosaic virus; Prunus persica; Trillium; Vitis; cherries; computer simulation; cultivars; flowers; gardens; genes; leaf area; peptide elongation factors; pests; phylogeny; quarantine; restriction fragment length polymorphism; risk; sequence analysis; Italy; Korean Peninsula; Ontario
Abstract:
... The poinsettia, Euphorbia pulcherrima Willd. Ex Klotzsch (family Euphorbiaceae) is the second-largest potted ornamental crop in Canada; approximately 4.2 million pots per year are grown in Ontario greenhouses (Agriculture and Agri-Food Canada 2020). Their commercially popular compact appearance is due to a branch-inducing factor, the PoiBI phytoplasma (Lee et al. 1995). Millions of potted poinsett ...
DOI:
10.1094/PDIS-03-21-0504-PDN

10. First genome edited poinsettias: targeted mutagenesis of flavonoid 3′-hydroxylase using CRISPR/Cas9 results in a colour shift

Author:
Daria Nitarska; Robert Boehm; Thomas Debener; Rares Calin Lucaciu; Heidi Halbwirth
Source:
Plant cell, tissue, and organ culture 2021 v.147 no.1 pp. 49-60
ISSN:
0167-6857
Subject:
CRISPR-Cas systems; Euphorbia pulcherrima; anthocyanins; color; cultivars; cyanidin; enzymes; gene editing; genes; organ culture; pelargonidin; site-directed mutagenesis
Abstract:
... The CRISPR/Cas9 system is a remarkably promising tool for targeted gene mutagenesis, and becoming ever more popular for modification of ornamental plants. In this study we performed the knockout of flavonoid 3′-hydroxylase (F3′H) with application of CRISPR/Cas9 in the red flowering poinsettia (Euphorbia pulcherrima) cultivar ‘Christmas Eve’, in order to obtain plants with orange bract colour, whic ...
DOI:
10.1007/s11240-021-02103-5

11. Synthesis of Tyrosol 1,2,3-Triazole Derivatives and Their Phytotoxic Activity against Euphorbia heterophylla

Author:
Cristiane Aparecida Franco; Toshik Iarley da Silva; Marlon Gomes Dias; Bruno Wesley Ferreira; Bianca Lana de Sousa; Guilherme Mateus Bousada; Robert Weingart Barreto; Boniek Gontijo Vaz; Gesiane da Silva Lima; Marcelo Henrique dos Santos; José Antônio Saraiva Grossi; Eduardo Vinícius Vieira Varejão
Source:
Journal of agricultural and food chemistry 2022 v.70 no.9 pp. 2806-2816
ISSN:
1520-5118
Subject:
Commelina benghalensis; Erigeron sumatrensis; Euphorbia heterophylla; Euphorbia pulcherrima; carbon; chlorophyll; copper; cycloaddition reactions; diquat; food chemistry; necrosis; photosynthesis; phytotoxicity; stomatal conductance; water use efficiency; weed control; weeds
Abstract:
... The synthesis and phytotoxic activity of a series of tyrosol 1,2,3-triazole derivatives are reported herein. Target compounds were synthesized through the copper(I)-catalyzed azide-alkyne cycloaddition reaction (CuAAC), known as click reaction, and these were tested for phytotoxic activity on leaves of wild poinsettia (Euphorbia heterophylla), fleabane (Conyza sumatrensis), and tropical spiderwort ...
DOI:
10.1021/acs.jafc.1c06012

12. Variability of Phytoplasma Infection Density in Poinsettia and Evaluation of its Association with the Level of Branching in Host Plants

Author:
Shin Lee; Chien-Young Chu; Chia-Ching Chu
Source:
Plant disease 2021 v.105 no.05 pp. 1539-1545
ISSN:
0191-2917
Subject:
Euphorbia pulcherrima; ecology; pathogens; phenotype; phytoplasmal diseases; quantitative polymerase chain reaction; sequence analysis; vegetative growth
Abstract:
... It has long been established that phytoplasma infection is the cause of the free-branching phenotype in poinsettia. However, relatively little is known about the ecology of the pathogen in planta. The present study evaluated the infection pattern of poinsettia branch-inducing phytoplasma (PoiBI) and its association with the poinsettia phenotype during cutting propagation. The presence of this path ...
DOI:
10.1094/PDIS-10-20-2304-RE

13. 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

14. 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

15. Developing a Water-stress Index for Potted Poinsettia Production

Author:
Lloyd L. Nackley; Elias Fernandes de Sousa; Bruno J.L. Pitton; Jared Sisneroz; Lorence R. Oki
Source:
HortScience 2020 v.55 no.8 pp. 1295-1302
ISSN:
2327-9834
Subject:
Euphorbia pulcherrima; agricultural runoff; fertilizers; floriculture; greenhouses; heat; industry; pesticides; plant growth; pollution; sap flow; soil water; transpiration; water content; water stress
Abstract:
... Potted poinsettia (Euphorbia pulcherrima) is an important commercial commodity for the U.S. floriculture industry. The production of poinsettia demands intensively managed light control, heat, fertilizer, and water; inhibiting elongation with plant growth regulators, and protecting plants from diseases and pests with pesticide applications. Excessive irrigation creates pollution, promotes disease, ...
DOI:
10.21273/HORTSCI14914-20

16. First Report of Bacterial Hollow Stalk Caused by Dickeya chrysanthemi (syn. Erwinia chrysanthemi) on Tobacco in Nanping, China

Author:
W. Lin; J. Y. Liu; Y. X. Feng; S. C. Zhang; Q. Zhao; Q. Lin; J. Wang
Source:
Plant disease 2020 v.104 no.12 pp. 3248
ISSN:
0191-2917
Subject:
DNA-directed DNA polymerase; Erwinia chrysanthemi; Euphorbia pulcherrima; Nicotiana tabacum; Pectobacterium; agar; ambient temperature; bacteria; computer software; cultivars; databases; harvest date; leaves; pathogenicity; pathogens; pigmentation; recombinases; sodium hypochlorite; summer; tobacco; China; Cuba
Abstract:
... Tobacco, Nicotiana tabacum L., family Solanaceae, is grown for its leaves (mature period). It originated in the Mesoamericas but today is cultivated globally. China produces about one-third of the world’s supply of tobacco leaves and is the largest tobacco producer in the world (Hu et al. 2007). In the early summer of 2019, after tobacco was topped, typical tobacco hollow stalk disease symptoms we ...
DOI:
10.1094/PDIS-06-20-1305-PDN

17. First Report of Bougainvillea Floral Bract Proliferation Disease in Cuba and Its Association with Phytoplasmal Infection

Author:
W. Wei; E. Pérez-López; Y. Zhao
Source:
Plant disease 2020 v.104 no.3 pp. 967
ISSN:
0191-2917
Subject:
Aster yellows phytoplasma; Bougainvillea glabra; Candidatus Phytoplasma asteris; Euphorbia pulcherrima; bracts; branching; cetyltrimethylammonium bromide; flowers; gardens; genes; hybrids; intergenic DNA; leaves; lianas; loci; morphs; nucleotide sequences; oligodeoxyribonucleotides; ornamental plants; phytoplasmal diseases; polymerase chain reaction; ribosomal DNA; ribosomal RNA; ribosomal proteins; sequence homology; temperate zones; Brazil; Cuba; India
Abstract:
... Bougainvillea is a genus of evergreen woody climbers or bushes native to South America. The plants in the genus often produce multiple inflorescences consisting of sepal-like bracts and waxy flowers. Being popular ornamental plants, bougainvilleas are widely cultivated in tropical, subtropical, and temperate areas around the world. Bougainvillea × buttiana refers to a variety of garden hybrids of ...
DOI:
10.1094/PDIS-09-19-2052-PDN

18. Fitness Cost of Imazamox Resistance in Wild Poinsettia (Euphorbia heterophylla L.)

Author:
Saeid Hassanpour-bourkheili; Mahtab Heravi; Javid Gherekhloo; Ricardo Alcántara-de la Cruz; Rafael De Prado
Source:
Agronomy 2020 v.10 no.12 pp. -
ISSN:
2073-4395
Subject:
Euphorbia heterophylla; Euphorbia pulcherrima; acetolactate synthase; agronomy; biotypes; early development; herbicide resistance; homozygosity; imazamox; leaf area; leaves; mutation; net assimilation rate; plant height; planting; seeds; shoots; soybeans; specific leaf area; stems; weeds; weight; Brazil
Abstract:
... Wild poinsettia (Euphorbia heterophylla L.) is a difficult-to-control weed in soybean production in Brazil that has developed resistance to herbicides, including acetolactate synthase inhibitors. We investigated the potential fitness cost associated to the Ser-653-Asn mutation that confers imazamox resistance in this weed. Plant height, leaf and stem dry weight, leaf area and seed production per p ...
DOI:
10.3390/agronomy10121859

19. Investigation of the effect of day length through black cloth treatment on flowering of potted poinsettia (Euphorbia pulcherima Willd. ex Klotzsch) and evaluation of its longevity under indoor conditions

Author:
D. P. Karunananda; S. E. Peiris
Source:
Acta horticulturae 2020 v. no.1278 pp. 211-218
ISSN:
0567-7572
Subject:
Euphorbia pulcherrima; color; floriculture; flowering; industry; longevity; photoperiod
Abstract:
... In the introduction of poinsettia (Euphorbia pulcherima Willd. ex Klotzsch) as a novel pot plant to Sri Lankan floriculture industry, artificial induction of flowers under long day conditions (off season) is necessary for it to produce marketable plants throughout the year. In this study, feasibility of force blooming during off season was investigated by subjecting vegetative plants to black clot ...
DOI:
10.17660/ActaHortic.2020.1278.31

20. Nutritional Relationship between Bemisia tabaci and Its Primary Endosymbiont, Portiera aleyrodidarum, during Host Plant Acclimation

Author:
Fang-Yu Hu; Chi-Wei Tsai
Source:
Insects 2020 v.11 no.8 pp. -
ISSN:
2075-4450
Subject:
Bemisia tabaci; Brassica oleracea var. alboglabra; Euphorbia pulcherrima; Gossypium; Rickettsia; Solanum lycopersicum; acclimation; biosynthesis; cotton; cucumbers; diet; endosymbionts; essential amino acids; fecundity; genes; host plants; nutrients; tomatoes
Abstract:
... Plant sap-sucking insects commonly have established mutualistic relationships with endosymbiotic bacteria that can provide nutrients lacking in their diet. Bemisia tabaci harbors one primary endosymbiont, Portiera aleyrodidarum, and up to seven secondary endosymbionts, including Hamiltonella defensa and Rickettsia sp. Portiera aleyrodidarum is already known to play a critical role in providing nec ...
DOI:
10.3390/insects11080498