Sublethal effects of chlorpyrifos-methyl on reproduction in female German cockroaches (Dictyoptera: Blattellidae).
نویسندگان
چکیده
Longevity and lifetime fecundity were significantly reduced after topical application of LC10, LC20, and LC60's of chlorpyrifos-methyl to 2-d-old female German cockroaches, Blattella germanica (L.). Low concentrations (LC10 and LC20) often resulted in failure of the first ootheca to hatch. This effect is temporary, and greater than or equal to 90% of subsequent oothecae hatched normally. Application of an LC60 also resulted in a high percentage of abortions of first oothecae, but also caused greater than 15% inviability in subsequent oothecae.
منابع مشابه
Cumulative toxicity and delayed temperature effects of hydramethylnon on German cockroaches (Orthoptera: Blattellidae).
J. Econ. Enlomol. 79: 1613-1616 (1986) ABSTRACT Blattella germanica (L.) males succumbed to two consecutive sublethal doses of hydramethylnon (an amidinohydrazone) spaced up to 6 days apart. The same effect was not observed with a carbamate (propoxur) or organophosphate (chlorpyrifos) insecticide. Radiotracer analysis revealed presence of HCresidues inside cockroaches for at least 21 days follo...
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عنوان ژورنال:
- Journal of economic entomology
دوره 83 2 شماره
صفحات -
تاریخ انتشار 1990