Effectiveness of Three Chemical Insecticides in Controlling Epilachna Beetle, Epilachna dodecastigma Muls.

Efficacy 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...

Effect of Temperature on the Bahaviour of Epilachna Beetle (Epilachna dodecastigma Wied.) among Different Brinjal Varieties

An experiment was carried out to study the effect of temperature on biology, oviposition and feeding behaviour as well as host preference of Epilachna beetle, Epilachna dodecastigma (Wied.) on eight varieties of brinjal, Solanum melongena Linn. from November, 2009 to June, 2010 maintaining controlled temperatures of 15oC, 25oC and 30oC using an incubator in the Department of Entomology, BAU, My...

The Mexican bean beetle (Epilachna varivestis) regurgitome and insights into beetle-borne virus specificity

For nearly 400 million years, insects and plants have been embattled in an evolutionary arms race. Insects have developed diverse feeding strategies and behaviors in an effort to circumvent and overcome an extensive collection of plant defense tactics. Sap-sucking insects often inject saliva into hosts plants, which contains a suite of effector proteins and even microbial communities that can a...

An effect of sub-lethal doses of cryolite on Mexican bean beetle larvae, Epilachna varivestis.

Antifeedant 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...