BioControl (2000) 45, 165-178

M. Haseeb, H. Amano and H. Nemoto (2000)
Pesticidal effects on mortality and parasitism rates of Diadegma semiclausum, aparasitoid of the diamondback moth
BioControl 45 (2), 165-178
Abstract: The contact and oral toxicity of field doses of selected pesticides against the cocoon and adult stages of a hymenopterous parasitoid Diadegma semiclausum were studied using severalbioassays. Field rates of ten pesticides were selective to the parasitoid pupae. Fresh residue(s) of cartap, chlorfenapyr, emamectin benzoate and permethrin were highly toxic, causing 100% mortalityof adult females in every treatment. Residual effects of these four insecticides on cabbage foliage showed that only cartap was highly persistent. Cartapresidues caused 100% mortality for over 30 d. In thesame assay three chitin synthesis inhibitors(chlorfluazuron, flufenoxuron and teflubenzuron) and one fungicide/bactericide (copper nonylphenolsulfonate) and two bactericides (kasugamycin andoxolinic acid) were nontoxic to adults. Effects ofcontact toxicity of chitin synthesis inhibitors and fungicides/bactericides on the untreated progeny of treated parents was also determined: there was nosignificant difference in parasitism rates between progeny of treated and untreated adults. When the field doses of these chemicals were fed orally, mortality of female parasitoids ranged from 0% to17.23%. However, oral ingestion adversely affected the parasitism rate (p < 0.05) in all treatments except oxolinic acid. Selectivity of tested pesticides against D. semiclausum andintegration of compatible pesticides with this parasitoid for IPM of cabbage are discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Muhammad Haseeb, Hiroshi Amano

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Plutella xylostella
Diadegma semiclausum (parasitoid)	Plutella xylostella