Aggregation of conspecific predators sharing a common prey, influences their bodyweights. We investigated the influence intraspecific competition adult ladybirds Coccinella transversalis Fabricius on bodyweight feeding rusty plum aphid, Hysteroneura setariae (Thomas). Adult males and females consumed significantly greater number aphids with increase in predator-density, however, aphid-consumpti...

*Correspondence: [email protected] School of Science, Guilin University of Technology, Guilin, Guangxi 541004, P.R. China Abstract In this paper, we build a multispecies predator-prey model with mutual interference and time delays. By means of the comparison theorem, Ascoli theorem and Lebesgue dominated convergence theorem, we establish the sufficient conditions of permanence and investigate ...

Batrachochytrium dendrobatidis is responsible for amphibian declines worldwide. Decreasing the aquatic density of this chytrid through consumption its infectious zoospores by Cladocera (water fleas) may mitigate impact chytridiomycosis. Understanding predator-prey relationship requires insights in zoospore ingestion rate an average water flea, but such data are almost non-existent. We investiga...

Under laboratory condition the developmental periods of Cryptolaemus montrouzieri was reduced to an extent 22.7 days at 35°C when fed with Planococcus citri while it maximum (39.0 days) 20°C. The adult longevity ranged from 47.4 51.2 25°C and less (37.6 for both sexes. number eggs laid per female (328.5) feeding potential (182.6 nos) were 30°C than 20°C 35°C.

sulfonylurea herbicides mixtures with phenoxy herbicides can lead to effective control of broadleaved weeds. pot experiments were conducted to study the effect of foramsulfuron and nicosulfuron mixtures with 2,4-d plus mcpa on redroot pigweed and common lambsquarters in 2010 at the greenhouse of agricultural faculty of ferdowsi university of mashhad, iran. experiments were performed as a comple...

citrus mealy bug, planococcus citri (risso)is one of the most common and well knownpest insects of ornamentals. coleus, solenostemon scutellarioides (l.)codd is a suitable host ofthe mealybugs. mealybug destroyer, cryptolaemus montrouzieri mulsant (coleoptera:coccinellidae) is a polyphagous predatory coccinellid, employed in biological controlprograms against citrusmealy bug. the present work w...