Genetic basis for established and novel host plant use in a herbivorous ladybird beetle, Epilachna vigintioctomaculata
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چکیده
منابع مشابه
passivity in waiting for godot and endgame: a psychoanalytic reading
this study intends to investigate samuel beckett’s waiting for godot and endgame under the lacanian psychoanalysis. it begins by explaining the most important concepts of lacanian psychoanalysis. the beckettian characters are studied regarding their state of unconscious, and not the state of consciousness as is common in most beckett studies. according to lacan, language plays the sole role in ...
Local Host Adaptation and Use of a Novel Host in the Seed Beetle Megacerus eulophus
Spatial variation in host plant availability may lead to specialization in host use and local host adaptation in herbivorous insects, which may involve a cost in performance on other hosts. We studied two geographically separated populations of the seed beetle Megacerus eulophus (Coleoptera: Bruchidae) in central Chile: a population from the host Convolvulus chilensis (in Aucó) and a population...
متن کاملAntifeedant and insecticidal activities of selected plant extracts against Epilachna beetle, Henosepilachna vigintioctopunctata (Coleoptera: Coccinellidae)
Six different indigenous plants were screened for antifeedant and insecticidal activity against fourth instar larvae of Epilachna beetle, Henosepilachna vigintioctopunctata, which is a severe pest on brinjal. Among the plants screened, Achyranthes aspera showed higher activity against the selected pest. Ethyl acetate extracts of A. aspera showed higher antifeedant index and insecticidal activit...
متن کاملEfficacy of Neem Oil on the Biology and Food Consumption of Epilachna Beetle, Epilachna dodecastigma (Wied.)
The efficacy of neem oil on the mortality, growth and feeding responses of epilachna beetle showed that all the larval instars were susceptible to this oil. The LC50 values were higher at 3 instar and it was lowest on 1 instar. The LT50 values of oil increases proportionately with increasing larval age and with decreasing oil concentration. Neem oil significantly prolonged larval and pupal peri...
متن کاملDistance and Sex Determine Host Plant Choice by Herbivorous Beetles
BACKGROUND Plants respond to herbivore damage with the release of volatile organic compounds (VOCs). This indirect defense can cause ecological costs when herbivores themselves use VOCs as cues to localize suitable host plants. Can VOCs reliably indicate food plant quality to herbivores? METHODOLOGY We determined the choice behavior of herbivorous beetles (Chrysomelidae: Gynandrobrotica guerr...
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ژورنال
عنوان ژورنال: Entomologia Experimentalis et Applicata
سال: 1999
ISSN: 0013-8703,1570-7458
DOI: 10.1046/j.1570-7458.1999.00490.x