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You searched for: Journal Acta horticulturae Remove constraint Journal: Acta horticulturae Publication Year 2014 Remove constraint Publication Year: 2014 Subject biological control Remove constraint Subject: biological control Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Bacteriophage of Erwinia Amylovora - host range and fire blight control potential

Author:
Gasic, K.; Ivanovic, M.; Kuzmanovic, N.; Prokic, A.; Obradovic, A.; Sevic, M.
Source:
Acta horticulturae 2014 no.1056 pp. 123-126
ISSN:
0567-7572
Subject:
Erwinia amylovora; apples; bacteriophages; bioassays; biological control; chemical control; host range; host specificity; leaves; pears; Serbia
Abstract:
... In search for an alternative to chemical control of fire blight, we isolated seven bacteriophages specific to E. amylovora. Three phages were isolated from water, three from symptomless pear leaves and one from apple leaves with characteristic fire blight symptoms. Host-range studies showed that the phages differed in the ability to lyse 40 strains of E. amylovora isolated in Serbia. Based on its ...

2. Gram-positive bacteria producing antimicrobial peptides as efficient biocontrol agents of fire blight

Author:
Bonaterra, A.; Cabrefiga, J.; Mora, I.; Rosello, G.; Frances, J.; Montesinos, E.
Source:
Acta horticulturae 2014 no.1056 pp. 117-122
ISSN:
0567-7572
Subject:
Bacillus subtilis; Erwinia amylovora; Gram-positive bacteria; Lactobacillus; Mediterranean climate; Pantoea agglomerans; Pseudomonas fluorescens; active ingredients; adenosine monophosphate; antimicrobial peptides; biological control; biological control agents; genes; greenhouses; mechanism of action; microbial pesticides; plantaricins; polymerase chain reaction; screening; Europe; Mediterranean region; United States
Abstract:
... Currently available biocontrol agents (BCA) of fire blight are strains of Gram negative (Pseudomonas fluorescens, Pantoea agglomerans, Pantoea vagans) or Gram positive (Bacillus subtilis/amyloliquefaciens) bacteria. Many of the efficient strains produce antimicrobial peptides (AMPs) like cyclolipopeptides (cLPs) including surfactins, iturins, and fengycins, or pseudopeptides (e.g., pantocins). In ...

3. Strategy for non-antibiotic fire blight control in U.S.-grown organic pome fruit

Author:
Johnson, K. B.; Temple, T. N.; Elkins, R. B.; Smith, T. J.
Source:
Acta horticulturae 2014 no.1056 pp. 93-100
ISSN:
0567-7572
Subject:
sulfur; Erwinia amylovora; flowering; copper; biological control agents; DNA; Aureobasidium pullulans; sanitation; flowers; yeasts; stigma; streptomycin; microbial growth; pome fruits; USDA; oxytetracycline; pathogens; biological control; Western United States
Abstract:
... Pome fruit produced organically under the United States Department of Agriculture National Organic Program (NOP) standard can be treated with streptomycin or oxytetracycline for fire blight suppression, but a recent NOP regulatory review set a 2014 phase out date for these materials. In response, we employed a systems approach to development of non-antibiotic programs for fire blight control in th ...

4. Identification and control efficacy of Bacillus amyloliquefaciens sdf-005 against walnut anthracnose disease

Author:
Wang, Qing-hai; Liu, Xing-hong; Duan, Chun-hua; Niu, Shan-guang; Zhang, Wei
Source:
Acta horticulturae 2013 no.1050 pp. 339-346
ISSN:
0567-7572
Subject:
Bacillus amyloliquefaciens; Glomerella cingulata; anthracnose; bioactive properties; biological control; fungicides; heat stability; hot water treatment; metabolites; mycelium; ribosomal DNA; sequence analysis; soil water; China
Abstract:
... Walnut anthracnose disease is a kind of serious disease of walnut all over the world. In China, this disease is caused by Colletotrichum gloeosporioides, which is hard to control. The long-term abusing of chemical fungicides will certainly pollute the soil and water, so it is urgent to find a new safe and effective method. Here, we describe the identification of antagonistic bacterial strain SDF-0 ...

5. Biocontrol of strawberry root rot and petiole blight by use of non-pathogenic Fusarium sp. strains

Author:
Morocko-Bicevska, I.; Fatehi, J.; Gerhardson, B.
Source:
Acta horticulturae 2014 no.1049 pp. 599-605
ISSN:
0567-7572
Subject:
Fusarium; Gnomonia; biological control; blight; disease severity; greenhouses; growth promotion; pathogens; petioles; plant growth; root rot; roots; soil; strawberries; Latvia; Sweden
Abstract:
... Gnomonia fragariae Kleb. causes severe root rot and petiole blight of strawberry. The pathogen has been found to be involved in the strawberry root rot complex in Latvia and Sweden. Since the disease has been recently discovered, currently no control measures are available. The biocontrol ability of two non-pathogenic Fusarium sp. strains, A37 and A38, originated from strawberry roots against Gnom ...

6. Biological control against aphids in strawberry using a cocktail of parasitoids

Author:
Baroffio, C. A.; Turquet, M.; Rosemeyer, V.
Source:
Acta horticulturae 2014 no.1049 pp. 627-633
ISSN:
0567-7572
Subject:
Rhodobium porosum; biological control; chemical treatment; crops; greenhouses; integrated pest management; parasitoids; soilless culture; strawberries; Belgium; France; Switzerland
Abstract:
... A cocktail of six species of parasitoids has been used to control aphids on strawberry in Switzerland and France in protected and soilless crops. The cocktail was developed by Viridaxis in Belgium and labeled FresaProtect. In Switzerland, this cocktail was tested during two years under tunnel on everbearing strawberries. The results after the first year proved the efficacy and vitality of FresaPro ...

7. Biological control of anthracnose crown rot in strawberry using Bacillus velezensis NSB-1

Author:
Nam, M. H.; Kim, H. S.; Lee, H. D.; Whang, K. S.; Kim, H. G.
Source:
Acta horticulturae 2014 no.1049 pp. 685-688
ISSN:
0567-7572
Subject:
Glomerella cingulata; anthracnose; biological control; crown rot; cultivars; field experimentation; fungicides; leaves; strawberries; Korean Peninsula
Abstract:
... Bacillus velezensis NSB-1 isolate, selected from strawberry leaves in Korea, has shown levels of antagonism towards Colletotrichum gloeosporioides, the causal organism of anthracnose crown rot (ACR) in vitro. The isolate was identified as B. velezensis based on morphological, biochemical and molecular characteristics. NSB-1 was evaluated for control of ACR of strawberry cultivar ‘Seolhyang’ in pot ...

8. Density-dependent herbivory and biocontrol of the strawberry leaf beetle, Galerucella Tenella

Author:
Stenberg, J. A.
Source:
Acta horticulturae 2014 no.1049 pp. 647-650
ISSN:
0567-7572
Subject:
Fragaria ananassa; Galerucella; Hymenoptera; biological control; biological control agents; correlation; herbivores; larvae; observational studies; parasitism; parasitoids; plant density; plantations; strawberries; Finland; Russia
Abstract:
... Organic Strawberry (Fragaria x ananassa) plantations are often attacked by harmful leaf beetles of the genus Galerucella (Coleoptera: Chrysomelidae). An important natural enemy of Galerucella beetles is the hymenopteran parasitoid asecodes mento. Here I describe an observational study, investigating the effects of plant density on beetle density and parasitism in Finnish organic strawberry plantat ...

9. Discovery, development and technology transfer of biocontrol agents for postharvest disease control

Author:
Spadaro, D.; Garibaldi, A.; Gullino, M. L.
Source:
Acta horticulturae 2014 no.1053 pp. 23-36
ISSN:
0567-7572
Subject:
biological control; biological control agents; biomass production; disease control; food chain; industry; markets; mechanism of action; microorganisms; outreach; packing houses; shelf life; small businesses; technology transfer; Europe
Abstract:
... Several biocontrol agents (BCAs) have been discovered and tested for their efficacy in controlled and semi-commercial conditions. After the efficacy evaluation and preliminary studies on the mode of action, patenting is an essential step before contacting potential private companies interested in developing biofungicides. Several small enterprises are interested in developing BCAs, but the long an ...

10. In vitro evaluations of microbial biofilms and their responses to chemical disinfectants

Author:
Harding, M. W.; Daniels, G. D.; Howard, R. J.; Marques, L. L. R.; Allan, N. D.; Omar, A.; Olson, M. E.
Source:
Acta horticulturae 2014 no.1053 pp. 245-255
ISSN:
0567-7572
Subject:
Clavibacter michiganensis subsp. sepedonicus; bacterial ring rot; biocides; biofilm; biological control; biological control agents; disinfectants; exposure duration; fungi; pathogens; phenotype; plant pathology; postharvest diseases; screening; virulence
Abstract:
... For many pathogenic microbes, biofilm formation is a critical component of the disease cycle and is required for pathogenicity or full virulence. Recent innovation in in vitro biofilm reactors has allowed high throughput evaluation and testing of chemical treatments against microbial biofilms. For example, the BEST(TM) Assay is a versatile and specialized biofilm reactor capable of culturing bacte ...

11. IPM and investigation of solar greenhouse strawberry production in Changping District of Beijing

Author:
Liu, Z. X.; Hu, X. J.; Chen, W. W.; Zeng, W.; Xing, G. Q.; Zhu, H. C.
Source:
Acta horticulturae 2014 no.1049 pp. 673-677
ISSN:
0567-7572
Subject:
biological control; chemical control; greenhouses; integrated pest management; pests; physical control; strawberries; China
Abstract:
... In this study, 21 common diseases and pests in the solar greenhouse strawberry production in Beijing’s Changping District are identified. Based on the results of the analysis, integrated pest management strategies for strawberries are proposed correspondingly. In general, integrated pests control strategies such as agricultural control, biological control, physical control and chemical control are ...

12. overview on biocontrol of postharvest diseases of citrus and stone fruits using potential yeast antagonists

Author:
El-Neshawy, S. M.
Source:
Acta horticulturae 2014 no.1053 pp. 75-83
ISSN:
0567-7572
Subject:
Candida tropicalis; Citrus; Penicillium digitatum; Penicillium expansum; Saccharomyces cerevisiae; Trichosporon pullulans; antagonists; biological control; calcium chloride; fungal antagonists; horticultural crops; lemons; mechanism of action; mycelium; oranges; pathogens; peroxidase; phenol; postharvest diseases; sodium bicarbonate; sorbic acid; stone fruits; sugars; yeasts; Egypt
Abstract:
... Several yeast antagonists i.e., Candida kruisii, Trichosporon pullulans, Saccharomyces transvalensis, Candida tropicalis, Rhodotorella mucilaginosa; and Saccharomyces cerevisiae and Debaromyces carsoni were selected and their potential efficacy was proved against Penicillium digitatum or Penicillium expansum on citrus and stone fruit, respectively, as two strategic horticultural crops in Egypt. Th ...

13. Plant protection challenges in strawberry production in Northern Europe

Author:
Parikka, P.; Tuovinen, T.
Source:
Acta horticulturae 2014 no.1049 pp. 173-179
ISSN:
0567-7572
Subject:
Anthonomus; Botrytis cinerea; Chaetosiphon fragaefolii; Colletotrichum acutatum; Diplocarpon earlianum; Galerucella; Gnomonia; Lygus rugulipennis; Mycosphaerella fragariae; Otiorhynchus sulcatus; Phytophthora cactorum; Podosphaera; Tarsonemus; Tetranychus urticae; anthracnose; biological control; climate; crown rot; foliar diseases; fruits; fungicides; global warming; gray mold; growers; latitude; monitoring; pests; plant protection; powdery mildew; predatory mites; spring; strawberries; viruses; winter; Finland; Northern European region
Abstract:
... Strawberry is cultivated in north Europe, also in the higher latitudes and it is the most important soft fruit crop in Finland. The cool climate has limited the spread of many strawberry pests to Finland, but this is now changing. Benefiting from the warming climate, strawberry tarsonemid mite (Tarsonemus pallidus) continues to be the most important pest. Biological control by use of predatory mit ...

14. Potential use of Bioagents in the control of postharvest rot in melon

Author:
Terao, D.; Forner, C.; H. N. Maia, A. de; Bettiol, W.
Source:
Acta horticulturae 2014 no.1053 pp. 65-74
ISSN:
0567-7572
Subject:
Bacillus subtilis; Debaryomyces hansenii; Fusarium incarnatum; Pichia membranifaciens; Rhodotorula; Sporidiobolus; Sporobolomyces; biological control; disease control; disease incidence; disease severity; electron microscopy; exports; imazalil; melons; mycelium; pathogens; postharvest diseases; postharvest treatment; uncertainty; yeasts; Brazil
Abstract:
... Rot caused by Fusarium pallidoroseum has had a severely negative impact on the export of melons from Brazil. Uncertainty regarding the health of the fruit due to the quiescent infection of the pathogen has led producers to use fungicides in the postharvest treatment of the fruit, thereby causing contamination and risking the health of consumers. Consequently, there is a demand for clean and safe n ...

15. The Use of Yeast Genetic Diversity for Agricultural and Biotechnological Applications

Author:
Kurtzman, C. P.
Source:
Acta horticulturae 2014 no.1053 pp. 51-63
ISSN:
0567-7572
Subject:
Basidiomycota; Pezizomycotina; Saccharomycotina; barcoding; biological control; competitive exclusion; crops; disease control; genetic variation; greenhouses; leaves; nucleotide sequences; pathogens; phylogeny; prediction; product safety; sequence analysis; species diversity; yeasts
Abstract:
... Many yeasts have been shown to be effective for biocontrol of field, greenhouse, and storage diseases of agricultural crops. Yeasts are generally regarded as safe for a wide variety of applications and some species establish large populations on leaf and fruit surfaces, resulting in disease control through competitive exclusion of pathogens. Yeasts that are used for biocontrol include ascomycetes ...

16. Climate change and increasing challenges for effective soil disinfestation

Author:
Ghini, R.
Source:
Acta horticulturae 2014 no.1044 pp. 447-454
ISSN:
0567-7572
Subject:
biological control; climate change; disinfestation; geographical distribution; globalization; pathogens; soil; sustainable agriculture
Abstract:
... Climate change, intense globalization and the need to increase the sustainability of agricultural activity are major challenges for effective soil disinfestation. The impact of climate change on the soil biota, the geographical distribution of soilborne pathogens, and adaptation strategies are discussed. These challenges underscore the importance of adopting preventive measures in soilborne pathog ...

17. Efficacy of DMDS as methyl bromide alternative in controlling soil borne diseases, root-knot nematode and weeds on pepper, cucumber and tomato in Egypt

Author:
Abou Zeid, N. M.; Noher, A. M.
Source:
Acta horticulturae 2014 no.1044 pp. 411-414
ISSN:
0567-7572
Subject:
agricultural research; biological control; cantaloupes; cucumbers; fumigants; fungi; greenhouse experimentation; lettuce; methyl bromide; pathogens; pepper; plant pathology; polyethylene film; root-knot nematodes; soil; soil-borne diseases; strawberries; tomatoes; vegetable growing; weeds; Egypt
Abstract:
... Methyl bromide was an essential soil fumigant for good vegetable production in Egypt. It was applied as a pre-planting fumigant for controlling fungal pathogens, root-knot nematodes and weeds in most vegetables such as cantaloupe, cucumber, lettuce, pepper, strawberry and tomato. Following decisions of the Montreal Protocol regarding the MB phase-out, the Agricultural Research Center selected alte ...

18. Low carbon amendment rates during anaerobic soil disinfestation (ASD) at moderate soil temperatures do not decrease viability of Sclerotinia sclerotiorum sclerotia or fusarium root rot of common bean

Author:
Butler, D. M.; Ownley, B. H.; Dee, M. E.; Eichler Inwood, S. E.; McCarty, D. G.; Shrestha, U.; Kokalis-Burelle, N.; Rosskopf, E. N.
Source:
Acta horticulturae 2014 no.1044 pp. 203-208
ISSN:
0567-7572
Subject:
Fusarium; Nematoda; Sclerotinia sclerotiorum; anaerobic conditions; beans; biological control; carbon; chemical composition; disinfestation; gas exchange; greenhouses; growth chambers; microirrigation; microorganisms; mulching; organic acids and salts; pathogens; polyethylene film; production technology; root rot; sclerotia; soil pH; temperature; topsoil; viability; volatile compounds; weeds; Tennessee
Abstract:
... Anaerobic soil disinfestation (ASD; also termed biological soil disinfestation) is a non-chemical process which includes 1) soil incorporation of a labile carbon (C) source, 2) mulching with polyethylene film to limit gas exchange, and 3) drip irrigation to saturation of the topsoil or bedded area. A number of putative mechanisms have been proposed as contributing to control of pathogens, nematode ...

19. Application of biological control of chestnut blight on a nationwide scale in Greece: results and prospects

Author:
Diamandis, S.; Perlerou, C.; Nakopoulou, Z.; Christopoulos, V.; Topalidou, E.; Tziros, G.
Source:
Acta horticulturae 2014 no.1043 pp. 23-34
ISSN:
0567-7572
Subject:
Castanea; Cryphonectria parasitica; biological control; coppicing; forests; fungi; horticulture; human resources; inoculum; orchards; silvicultural practices; tree age; viruses; Greece
Abstract:
... Since 1963 when chestnut blight was recorded for the first time in Greece, the disease has spread into all 29 chestnut growing prefectures. As a result the national, annual chestnut production was reduced from 18,000 tons in the 1960s to 11,000 tons in 2005. A project for the application of biological control on a nationwide scale was funded and implemented during the period 2007-2009. Hypovirulen ...

20. Biological control of chestnut blight in Portugal

Author:
Martins, L. M.; Castro, J. P.; Gouveia, M. E.
Source:
Acta horticulturae 2014 no.1043 pp. 51-56
ISSN:
0567-7572
Subject:
Castanea sativa; Cryphonectria parasitica; biological control; disease control; founder effect; fungi; health status; pathogens; plant health; population structure; quarantine; selfing; soil management; soil types; tree age; trees; virulence; Portugal
Abstract:
... Hypovirulence is a specific biological control method of chestnut blight, a lethal disease of American and European chestnut. The causal pathogen of chestnut blight is Cryphonectria parasitica, a fungus of Asian origin and an A2 quarantine organism in Europe. The disease has been reported since 1990 in Portugal, one of the last European countries where the pathogen was introduced. The chestnut bli ...

21. Effectiveness of Torymus sinensis in the biological control of dryocosmus kuriphilus in Italy

Author:
Quacchia, A.; Moriya, S.; Bosio, G.
Source:
Acta horticulturae 2014 no.1043 pp. 199-204
ISSN:
0567-7572
Subject:
Castanea; Dryocosmus kuriphilus; Torymus; biological control; parasitism; parasitoids; pest control; China; Italy; Japan; United States
Abstract:
... Dryocosmus kuriphilus is a global serious pest of chestnut. Original of China, it was accidentally introduced into several countries across the world. Biological control using its natural parasitoid Torymus sinensis is the most promising method to control the pest. T. sinensis was first introduced into Japan and USA, and since 2005 into Europe. The effectiveness of this biological control strategy ...

22. Fungi associated with hypovirulent cankers of differing ages on American chestnut

Author:
Double, M. L.; Kolp, M. R.; Jarosz, A. M.; Davelos Baines; Fulbright, D. W.; MacDonald, W. L.
Source:
Acta horticulturae 2014 no.1043 pp. 57-65
ISSN:
0567-7572
Subject:
Botryosphaeria; Castanea dentata; Cryphonectria parasitica; Epicoccum nigrum; Hypovirus; Penicillium; Pestalotia; Trichoderma atroviride; bark; biological control; biological control agents; fungi; saprophytes; Wisconsin
Abstract:
... A research project to introduce hypoviruses and monitor their spread was initiated 20 years ago in an American chestnut (Castanea dentate) stand growing 900 km west of the natural range of the species in western Wisconsin (USA). During this period, CHV1 and CHV3 hypoviruses were deployed by treating cankers with the resident Cryphonectria parasitica strains that were hypovirus infected. Hypovirus ...

23. Biocontrol of Tetranychus urticae in greenhouse tomato crops

Author:
Camps, C.; Gilli, C.; Fischer, S.
Source:
Acta horticulturae 2014 no.1041 pp. 171-176
ISSN:
0567-7572
Subject:
Phytoseiulus persimilis; Solanum lycopersicum; Tetranychus urticae; active ingredients; biological control; chemical control; crops; essential oils; fatty acids; greenhouses; oils; oranges; pests; potassium; predatory mites; tomatoes; Switzerland
Abstract:
... The two-spotted spider mite Tetranychus urticae is an important pest on tomato (Solanum lycopersicum) in greenhouses. The predatory mite Phytoseiulus persimilis is often used to control T. urticae, but is not well adapted to tomato plants and does not control T. urticae efficiently on this crop. New predators such as Phytoseiulus macropilis and new active ingredients such as bifenazat (Acramite®) ...

24. Biological control of Fusarium wilt in greenhouse tomato by mycorrhizal fungi and resistant rootstock

Author:
Bolandnazar, S.; Moghbeli, E. M.; Panahandeh, J.; Arzanlou, M.
Source:
Acta horticulturae 2014 no.1041 pp. 127-132
ISSN:
0567-7572
Subject:
sandy soils; mycorrhizal fungi; economics; seedlings; phosphorus; roots; soil fumigation; Fusarium oxysporum f. sp. lycopersici; greenhouses; shoots; tomatoes; Solanum lycopersicum; sowing; Fusarium wilt; disease resistance; Rhizophagus intraradices; grafting (plants); seedling production; cultivars; spores; seeds; disease control; rootstocks; methyl bromide; inoculum; biological control; disease incidence
Abstract:
... One of the most common diseases of tomato (Solanum lycopersicum) is soil-borne Fusarium wilt (Fusarium oxysporum f. sp. lycopersici), which causes serious economic and yield losses. Major strategies for controlling this disease are soil fumigation with methyl bromide, using resistant cultivars, grafting on to resistant rootstocks, and biological control methods. In the present study, the role of m ...

25. Flower strips as winter shelters for predatory Miridae bugs

Author:
Lambion, J.
Source:
Acta horticulturae 2014 no.1041 pp. 149-156
ISSN:
0567-7572
Subject:
Calendula officinalis; Dicyphus; Geraniaceae; Lamiaceae; Macrolophus; arthropods; biodiversity; biological control; crops; flowers; greenhouses; habitats; horticulture; host plants; overwintering; parasitoids; pest control; predators; spring; winter
Abstract:
... Biological control by habitat management, which uses the principles of functional biodiversity, is a promising technique for pest control in organic greenhouse horticulture. This technique consists of establishing specific host plant species which attract, house and feed indigenous arthropod predator and parasitoid species around crops. Previous studies have shown that certain species of host-plan ...

26. Utilising plant feeding phytoseiid predators for pest control: pros and cons

Author:
Adar, E.; Inbar, M.; Gal, S.; Palevsky, E.
Source:
Acta horticulturae 2014 no.1041 pp. 141-147
ISSN:
0567-7572
Subject:
Amblyseius; Euseius; Iphiseius; Neoseiulus; Polyphagotarsonemus latus; Typhlodromalus; Typhlodromus; biological control; biological control agents; canopy; diet; greenhouses; growth chambers; horticultural crops; host plants; insects; leaves; pepper; pest control; plant damage; pollen; predatory mites; scanning electron microscopy
Abstract:
... While plant feeding is well documented in insect predators, in Acarine (=mite) biological control agents (ABAs) little is known. Our objectives in this manuscript were to: 1) review plant feeding in the predatory mite family Phytoseiidae and its effects on the plant; 2) evaluate the biocontrol efficacy of the phytoseiid plant feeder Euseius scutalis. Several studies on phytoseiids have demonstrate ...

27. Resilience of growing media

Author:
Khalil, S.
Source:
Acta horticulturae 2014 no.1034 pp. 371-378
ISSN:
0567-7572
Subject:
Fusarium; Phytophthora; Pythium; bacteria; beneficial microorganisms; bioinformatics; biological control; composts; cropping systems; disease control; disease incidence; early warning systems; enzyme activity; fungi; growing media; horticulture; mathematical models; microbial activity; microbial communities; nitrification; nutrient solutions; nutrients; pH; pathogens; peat; production technology; water content
Abstract:
... Growing media in horticultural cropping systems inhabit a number of microorganisms including bacteria and fungi. This number is low at the beginning of the growing period and increase rapidly after the introduction of the plants. Analyses using viable count indicated stability of growing media at the bacterial amount of 10(10) CFU/g of fresh root and at 106 CFU/ml for the nutrient solution. Microf ...

28. The feasibility of in situ conservation of European chestnut in Azerbaijan in the face of blight, Cryphonectria parasitica: a review

Author:
Wall, J.; Aghayeva, D.N.
Source:
Acta horticulturae 2014 no.1032 pp. 271-278
ISSN:
0567-7572
Subject:
Castanea sativa; Cryphonectria parasitica; biological control; blight; center of diversity; disease outbreaks; fungi; genetic resources; genetic variation; perennials; research projects; virulence; Azerbaijan; Europe
Abstract:
... The genetic diversity of European chestnut, Castanea sativa Mill., is undergoing rapid erosion in its center of diversity, eastern Turkey and the Caucasus, due to the arrival and spread of the fungal blight, Cryphonectria parasitica (Murill) Barr. In Azerbaijan, blight was first reported in 2008. Currently, blight has been observed in all regions of Azerbaijan where chestnut is grown. Typically, p ...

29. Controlling the first generation of navel orangeworm in almonds

Author:
Zalom , F.G; Nicola, N.L.
Source:
Acta horticulturae 2014 no.1028 pp. 185-190
ISSN:
0567-7572
Subject:
Amyelois transitella; Anarsia lineatella; almonds; application timing; arthropods; avermectins; biological control; eggs; females; flight; flubendiamide; hulling; hulls; larvae; methoxyfenozide; natural enemies; pest control; pesticide application; pyrethroid insecticides; spring
Abstract:
... The recommended insecticide application timing for control of the navel orangeworm, Ameylois transitella Zeller, is at hull split or post-hull split to control the larvae of the eggs laid by females from the second and third flights. Insecticides applied to control larvae produced by females of the first flight has not been recommended because most conventional insecticides were also disruptive of ...

30. Developments in the control of lily diseases

Author:
Conijn, C.G.M.
Source:
Acta horticulturae 2014 no.1027 pp. 213-229
ISSN:
0567-7572
Subject:
Aphidoidea; Botrytis; Fusarium; Lilioceris lilii; Lily mottle virus; Lily symptomless virus; Penicillium; Plantago asiatica mosaic virus; Pratylenchus penetrans; Pythium; Rhizoglyphus robini; Thanatephorus cucumeris; biodiversity; biological control; bulbs; decision support systems; disease control; flowers; fungi; gardens; hot water treatment; insects; mites; ornamental value; root rot; soil; viruses
Abstract:
... No crop is free of diseases, and this is true for both commercial lily bulb and flower production and garden/park plantings. Several threats are present that can influence lily growth, yield and ornamental value and the more we grow this crop the more we have to deal with diseases. For a widely-planted crop like the lily, research is done all over the world in regard to disease and disease control ...

31. Effectiveness of reduced-risk and Biocontrol products in controlling fire on lilies

Author:
Chastagner, G.A.; DeBauw, A.
Source:
Acta horticulturae 2014 no.1027 pp. 231-239
ISSN:
0567-7572
Subject:
Botrytis elliptica; Lilium; Reynoutria sachalinensis; biological control; boscalid; carbon dioxide; chlorothalonil; cyprodinil; experimental design; fludioxonil; fluoxastrobin; growing season; hybrids; iprodione; oils; peracetic acid; pyraclostrobin; tebuconazole; thyme; triticonazole
Abstract:
... Fungicides are an important tool used in the management of Botrytis elliptica on lilies. During 2011, 2012 and 2013, trials were conducted to determine the effectiveness of several reduced-risk and biocontrol fungicides in controlling B. elliptica on field-grown 'Elite' or 'London' Asiatic hybrid lilies. A total of 13 fungicides and an untreated check were included in these trials. Fungicides incl ...

32. In vitro biological control of aphid of papaya by Beauveria bassiana

Author:
Ghosh, S.K.; Chakraborty, N.; Biswas, P.P.
Source:
Acta horticulturae 2014 no.1022 pp. 113-117
ISSN:
0567-7572
Subject:
Aphis (Aphididae); Beauveria bassiana; Hibiscus rosa-sinensis; Jatropha; Papaya mosaic virus; Papaya ringspot virus; biological control; fungi; insects; mortality; mycelium; nymphs; ornamental plants; spores
Abstract:
... In the year of 2010 and 2011, the observations on aphid colonization on papaya plants (One year old) in the field showed maximum aphid population (500/plant and 600/plant respectively) in the month of April. This aphid was recorded on two ornamental plants (Jatropha pandurifolia And. and Hibiscus rosa sinensis L.) and its colonizations were recorded and they were 460 and 695/plant respectively in ...

33. Accumulation of natural enemies by the Asian chestnut gall wasp in North America

Author:
Rieske, L.K.
Source:
Acta horticulturae 2014 no.1019 pp. 205-209
ISSN:
0567-7572
Subject:
Castanea; Dryocosmus kuriphilus; Megastigmus; Torymus; biological control; natural enemies; parasitoids; United States
Abstract:
... The Asian chestnut gall wasp, Dryocosmus kuriphilus (Hymenoptera: Cynipidae), is a globally invasive pest of Castanea. Population regulators and geographic range expansion of the Asian chestnut gall wasp in North America with focus on natural enemy recruitment have been evaluated. After the initial discovery of the gall wasp in the U.S., there were biological control releases that included Megasti ...

34. Effect of spore concentration on the establishment of cytoplasmic hypovirulent (HV), transgenic HV, and virulent isolates of Cryphonectria parasitica, the chestnut blight fungus

Author:
Kenaley, S.C.; Double, M.L.; MacDonald, W.L.
Source:
Acta horticulturae 2014 no.1019 pp. 165-171
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria hypovirus 1; Cryphonectria parasitica; ascospores; bark; biological control; complementary DNA; conidia; fungi; genetically modified organisms; mycelium; sporulation; virulence
Abstract:
... Transgenic hypovirulent (HV) strains of Cryphonectria parasitica engineered to contain a complimentary DNA (cDNA) copy of Cryphonectria hypovirus 1 (CHV1) may provide an efficient mechanism to introduce hypoviruses into genetically diverse populations of the chestnut blight fungus. However, elucidating the factors that influence infection of American chestnut (Castanea dentate) and the initiation ...

35. Effects of branch size and pathogen virulence on canker development and branch mortality

Author:
Davelos Baines, A.; Fulbright, D.W.; Jarosz, A.M.
Source:
Acta horticulturae 2014 no.1019 pp. 23-29
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria parasitica; biological control; branches; chestnuts; double-stranded RNA; fungi; mortality; pathogens; trees; virulence; Michigan
Abstract:
... Effective biological control using dsRNA requires that chestnuts infected with dsRNA-containing strains of the chestnut blight fungus (Cryphonectria parasitica) have higher survival than trees infected with dsRNA-free strains. The influence of branch size on canker development and branch mortality was investigated in an American chestnut stand in Michigan. Comparisons among cankers initiated natur ...

36. New notes on the biology of the chestnut fungus Gnomoniopsis sp. And its possible use as a biocontrol agent of oriental chestnut gall wasp

Author:
Vannini, A.; Martignoni, D.; Bruni, N.; Tomassini, A.; Aleandri, M.P.; Vettraino, A.M.; Caccia, R.; Speranza, S.; Paparatti, B.
Source:
Acta horticulturae 2014 no.1019 pp. 235-238
ISSN:
0567-7572
Subject:
Castanea sativa; Dryocosmus kuriphilus; biological control; biological control agents; branches; conidia; fungi; galls; mortality; necrosis; orchards; plant rots; Italy
Abstract:
... During 2009, a fungus belonging to the genus Gnomoniopsis was found associated with the necrosis of galls of Dryocosmus kuriphilus, the chestnut gall wasp. The common observation of this phenomenon in chestnut orchards prompted us to evaluate the utilization of the fungus for biological control of gall wasp. During 2011, experiments were conducted on young, five-year-old plants of Castanea sativa, ...

37. Restoration of chestnuts as a timber crop in Connecticut

Author:
Anagnostakis, S.L.; Pinchot, C.C.
Source:
Acta horticulturae 2014 no.1019 pp. 17-19
ISSN:
0567-7572
Subject:
Castanea dentata; Cryphonectria parasitica; biological control; breeding; chestnuts; field experimentation; forests; genetic variation; indigenous species; shrubs; trees; understory; virulence; viruses; Connecticut
Abstract:
... American chestnut trees were an important source of timber in Connecticut until chestnut blight disease reduced them to understory shrubs. Breeding begun in 1930 has now produced trees with enough resistance to initiate field trials in the forest. Biological control by hypovirulence viruses is being used in the plots in an effort to keep native trees alive. If native trees cross with the planted t ...

38. Extending the use of bioplastic granules for the application of Trichoderma biocontrol isolates in Flori/Horticulture and turfgrass

Author:
Accinelli, C.; Mencarelli, M.; Abbas, H.K.; Weaver, M.A.
Source:
Acta horticulturae 2014 no.1015 pp. 79-88
ISSN:
0567-7572
Subject:
tomatoes; horticultural crops; mulching; conidia; damping off; granules; Trichoderma virens; seedlings; Thanatephorus cucumeris; pathogens; Poa annua; fungi; horticulture; planting; turf grasses; Pythium ultimum; Aspergillus flavus; biological control
Abstract:
... Bioplastic materials are gaining increasing interest in a variety of different industrial and domestic applications. Beside its usage as mulching films and plant clips in horticulture, no other agricultural applications have been proposed. In 2009 we demonstrated that granules made of the bioplastic Mater-Bi are an efficient and practical solution for field applications of biocontrol isolates of t ...