Genus: Plutella > Species: Plutella xylostella Vernacular names Koolmot (NL), Diamond-back Moth (EN), Teigne des … Insecticide resistance was long suspected to be a component of the problem. Keddie, B.A. Mixtures of chemical insecticides, or chemicals and microbials, are often recommended for diamondback moth control. Each treatment was replicated three times. Talekar NS, Yang HC, Lee ST, Chen BS, Sun LY (eds.). A post-eclosion early learning involved in host recognition by, Insect chemosensory responses: a chemical legacy hypothesis, Understanding and manipulating plant attributes to enhance biological control, Multitrophic effects of herbivore-induced plant volatiles in an evolutionary context, Effects of host-food plant species on parasitization rates of, Learning of plant-infested plant volatiles in the larval parasitoid, Beneficial arthopod behaviour mediated by airborne semiochemicals. Geographical distribution: Plutella xylostella occurs wherever crucifers are cultivated, but does not overwinter in temperate zones. Varieties also differ in susceptibility to damage by diamondback moth, and a major component of this resistance is the presence of leaf wax. They routinely re-invade these areas each spring, evidently aided by southerly winds. Staley, J. T. Twenty 2nd instar P. xylostella larvae were exposed to the parasitoid wasp until parasitization was observed. The treatment was replicated five times. P. xylostella and the parasitoid wasp D. semiclausum were grown on cabbage plants and host larvae, respectively. Insecticides: Protection of crucifer crops from damage often requires application of insecticide to plant foliage, sometimes as frequently as twice per week. Larva of the diamondback moth, Plutella xylostella (Linnaeus). "hasAccess": "0", Printed in Belgium. Poppy, G. M. Larvae generally are fewer in number, and more heavily parasitized, when crucifer crops are interplanted with another crop or when weeds are present. 1963. Because of variation among locations, each crop field requires independent monitoring. Mustard, turnip, and kohlrabi are among the more resistant crucifers, but resistance is not as pronounced as it is for imported cabbageworm and cabbage looper . Zalucki, Myron P. Suzuki, Y. 2012. Sometimes many thousands can appear during the night at coastal migration watch-points. Sarfraz, M. The results showed that neem leaf extract could cause mortality of P. xylostella larvae by 50% with LC 50 value of 20.73%, and, at It was first observed in North America in 1854, in Illinois, but had spread to Florida and the Rocky Mountains by 1883, and was reported from British Columbia by 1905. A large proportion of young larvae are often killed by rainfall. 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