Crude protein from thirteen bt isolates was extracted and used at different concentrations viz. Bacillus thuringiensis bt crude protein on diamond back moth plutella xylostella. A field trial was conducted in a farmers field by integrating biocontrol. Is the spider a good biological control agent for plutella xylostella lepidoptera. The transport of insecticideresistant populations also may occur. Dosdall3 1department of biological sciences, university of alberta, edmonton, alberta, canada, 2department of biological sciences, university of alberta, edmonton, alberta, canada, and 3department of agricultural, food and nutritional science, agricultureforestry. Plutella xylostella granulovirus plxygv has been isolated from insect populations in many countries and is considered a potential biopesticide for sustainable control of p. For this reason the use of biological control agents, particularly parasitoids has become important. Plutellidae, has become the most destructive insect pest of cruciferous vegetables brassica oleracea l. Genetic and biological characterisation of a novel. Introduction diamondback moth, plutella xylostella l.
The parasitoid, cotesia plutellae, is used as a biological control agent for diamondback moth, plutella xylostella, in many countries and has been evaluated as a candidate for release in new zealand. Rearing of plutella xylostella the larvae and pupae of p. Plutella xylostella linnaeus, 1758, the diamondback moth dbm, is a wellknown and destructive insect pest of brassicaceous crops worldwide. Diamondback moth, plutella xylostella linnaeus insecta. Department biotechnology and biological control, institute for phytopathology, christian. Control of the cosmopolitan cabbage pest, plutella xylostella l. Plutellidae, is one of the most destructive cosmopolitan insect pests of brassicaceous crops. Proceedings of the third international workshop on the management of diamondback moth and other crucifer pests. The use of fungi in laboratory conditions presents high pest mortality percentages beauveria bassiana bb9205. Effect of insecticides and plutella xylostella lepidoptera.
Thus, we evaluated the combined effects of the cabbage cultivars ruby ball, matsukase sakata, and sessenta dias, the aqueous extracts of azadirachta indica, aspidosperma pyrifolium, and melia azedarach, and the parasitoid oomyzus. Jan 18, 2007 the diamondback moth dbm, plutella xylostella l. The diamondback moth dbm, plutella xylostella, is a notorious pest of crucifer vegetables which causes huge economic crop losses in australia and worldwide. Control of this pest is difficult because it rapidly develops resistance to synthetic and biological insecticides and because of the effects of insecticides on its natural enemies. Proceedings of the international symposium, montpellier, france, 2124 october 2002.
For this reason, biological control has been evaluated as an alternative to reduce populations of p. Biological control of diamondback moth epsilon open archive. Pdf biological control of diamondback moth plutella. Yponomeutidae, has become the most destructive insect of cruciferous plants. Plutella xylostella linnaeus the adult moth is a small greyish insect with a wingspan of about 7mm. The diamondback moth, plutella xylostella linnaeus 1758. Use only insecticides registered for diamondback moth control.
Plutellidae 2 pupa pupation occurs in a loose silk cocoon, usually formed on the lower or outer leaves. Ichneumonidae and microplitis plutellae hymenoptera. Influence of the temperature, host developmental stage, and application mode on its survival and infectivity. Xuan huang 1, xiaoyu quan, xia wang 1, yueli yun, yu peng 1hubei collaborative innovation center for green transformation of bioresources, college of life sciences, hubei university. Braconidae as biological control agents of plutella xylostella lepidoptera. Biocontrol potential of metarhizium anisopliae and. The impact of parasitoids on plutella xylostella populations.
Control has relied on insecticides, and dbm resistance to these compounds has evolved rapidly. Pdf biological control of the diamondback moth, plutella xylostella. The influence of cabbage cultivars on the fitness of. Pdf biological control of the diamondback moth, plutella. Novel strategies for plutella xylostella management in cabbage need to be evaluated in order to increase its control and reduce adverse impacts on the environment. Biological control of the diamondback moth, plutella. Bioefficacy of bacillus thuringiensis isolates crude. In south africa, there are no action thresholds for its chemical control which makes it difficult for growers to make informed decisions on. Plutellidae aflata sub control biologic natural in conditiile din moldova, romania. The moth has developed resistance to all tested insecticides and further studies on the potential role of factors affecting p.
Field parasitism, insecticide susceptibility, and hostsearching jianxiang xu,1,2 anthony m. Effects of nectarproducing plants on diadegma insulare cresson, a biological control agent of diamondback moth, plutella xylostella l. The diamondback moth plutella xylostella, sometimes called the cabbage moth, is a moth species of the family plutellidae and genus plutella. A narrow creamyyellow stripe along the hind edge of the wing is bordered by black in a wavy, irregular. Biological control of diamondback moth plutella xylostella l.
Pdf assessing the potential impact of biological control. Biological and microbial control comparison of diadegma insulare hymenoptera. Investigating the potential of an ascovirus for biological. Introduction three million ha of cabbages are grown worldwide and the most important pest species of these and other brassica crops is the diamondback moth dbm plutella xylostella l.
Is the spider a good biological control agent for plutella. Mar 20, 2015 plutella xylostella granulovirus plxygv has been isolated from insect populations in many countries and is considered a potential biopesticide for sustainable control of p. One aim of this thesis was to identify the species. Because of inconsistencies in individual control methods, inefficiencies and time demands of scouting. Oomyzus sokolowskii kurdjumov is a gregarious larvalpupal parasitoid of the diamondback moth plutella xylostella l. Dosdall3 1department of biological sciences, university of alberta, edmonton, alberta, canada. Its believed that the species may have originated in europe, south africa, or the mediterranean region, but it has now spread worldwide. Here, we analyzed the functional responses of four. Chemical compounds and bioactivity of aqueous extracts of. Combination of resistant cultivars, botanical insecticides. Plutella xylostella dbm is a key pest of crucifers resistant to many insecticides and some crystalendotoxins. Plutellidae, is a cosmopolitan insect pest of brassica crops.
Citescore values are based on citation counts in a given year e. Biological control based ipm and classical biocontrol have had varied success. Potential of entomopathogenic fungi as biological control. This is a strong indication for the success of the biological control of p. Pdf the diamondback moth, plutella xylostella l, is recognized as a widely distributed and serious pest of crucifers in many countries. A survey of the world literature was published by talekar et al. The small, grayishbrown moth sometimes has a creamcolored band that forms a diamond along its back. Effects of nectarproducing plants on diadegma insulare. This book presents key papers and the proceedings of an international symposium held in montpellier france in october 2002. It was the first crop insect reported to be resistant to ddt and now, in many crucifer producing regions, it has shown significant resistance to almost every synthetic insecticide applied in the field. Interactions of bacillus thuringiensis bioinsecticides and. Diamondback moth or dbm is the major pest of brassica vegetable production worldwide. Detailed biology of diamondback moth can be found in marsh 1917 and harcourt 1955, 1957, 1963. Schroer department biotechnology and biological control, institute for phytopathology, christian.
Population dynamics and management of diamondback moth. The diamondback moth, plutella xylostella linnaeus lepidoptera. African journal of agricultural research combination of. During the last decade, several new insecticides eg indoxacarb, chlorfenapyr, spinosad have been registered for the control of dbm in. Plutellidae 4 produced in the southern states and then moved north as weather allows. Plutellidae, is a major pest of plants in the family brassicaceae in many parts of the world. Proceedings of the international symposium on improving biocontrol of plutella xylostella, 2124th october 2002, montpellier, france, cirad, 274pp. Natural history, ecology, and management of diamondback moth. Assessing the potential impact of biological control of plutella xylostella diamondback moth in cabbage production in kenya.
Biocontrol potential of metarhizium anisopliae and beauveria bassiana against diamondback moth, plutella xylostella nguyen thi loc and vo thi bich chi cuu long delta rice research institute, can tho, vietnam abstract the diamond back moth dbm, plutella xylostella l. Dbm is, on average, more common in southern locations than in. Biology, ecology, and management of the diamondback moth. Dbm integrated pest management combines adequate pesticide use, biological control, floristic diversity in the field and trapping crops. Assessing the potential impact of biological control of. Sep 01, 2014 diamondback moth, plutella xylostella l. Plutella xylostella, biological control, insecticides, plant resistance, pheromone introduction perspective and history of pest status in recent years, the diamondback moth, plutella xylostella lepidoptera. Population dynamics and management of diamondback moth plutella xylostella in china. Integrating biocontrol agents with farmers practice. Request pdf biological control of plutella xylostella. Plutellidae e o parasitismo por trichogramma pretiosum riley hymenoptera. Assessing the potential impact of biological control of plutella xylostella.
Cryptic insects such as young diamondback moth larvae are sometimes transported and inoculated in this manner. In the early season, total parasitism was low, and mainly caused by d. Crude protein from thirteen bt isolates was extracted and. Biological control of the diamondback moth, plutella xylostella. Although parasitoids biological control agents play a major role in suppressing the pest populations during. Paulo donato castellane, 14884900, jaboticabal, sp, brazil. Resistance management is key for sustainable control. Biological and microbial control diadegma insulare. The objective of this study was to investigate the interactions between host and parasitoid by examining the effects of biotic factors such as gregariousness, host origin and stages, and female parasitoid age on the parasitism rate, developmental time, the number of.
In cauliflower and broccoli, pupation may occur in the florets. Genetic and biological characterisation of a novel plutella. Improving biocontrol of plutella xylostella ebook by alan. The impacts of this pest are magnified by its great capacity to disperse, by its adaptability to adverse weather conditions, and is intensified by its short life cycle and high reproductive rates honda et al. Pdf biological control of diamondback moth researchgate. In vitro interaction of metarhizium anisopliae ma9236 and. Dosdall3 1department of biological sciences, university of alberta, edmonton, alberta, canada, 2department of biological sciences, university of alberta, edmonton, alberta, canada, and 3department of agricultural, food and nutritional science. Biological control of the potato cutworm agrotis deprivata lepidoptera.
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