Seasonal Occurrence of Henosepilachna vigintioctopunctata (F.) (Coleoptera: Coccinellidae) and Its Parasitoid on Ashwagandha in India

Abstract

Abstract

Seasonal abundance of Henosepilachna vigintioctopunctata (Fab.) on Solanum melongena L. and natural occurrence of its two hymenopteran parasitoids

“…The mean maximum parasitization of H. vigintioctopunctata pupae by P. foveolatus was observed as 6.62 % in August (35 th standard meteorological week) whereas the minimum was recorded as 0.82 % in November (48 th standard meteorological week). Similar natural enemies of hadda have also been recorded from other parts of the country [16][17][18][19] . In their study P. foveolatus population was found highest during June-September, and the adult parasitoids emerged out of the grubs after making holes in their bodies.…”

Natural Enemies of Ladybird Beetles

“…On potato fi elds around Bangalore (India), Appanna ( 1948 ) recorded average parasitization of H. vigintioctopunctata to exceed 40%; it was about 30% in February and March, but reached much higher values (60 -77%) later in the season. Parasitization of the same host species and in the same region, reported by Venkatesha (2006) on a medicinal plant, Withania somnifera , was similarly high (range 52 -70%). In Sumatra, parasitization rates of pupae of Epilachna sp.…”

Selection and Validation of Reference Genes for RT-qPCR Analysis of the Ladybird Beetle Henosepilachna vigintioctomaculata

“…Henosepilachna vigintioctopunctata (Fabricius) (Coleoptera: Coccinellidae) is one of the most serious insect pests in Asian countries ( Ghosh and Senapati, 2001 ; Shinogi et al, 2005 ; Venkatesha, 2006 ; Zhou et al, 2015 ). H. vigintioctopunctata colonizes many different species of plants, for example, solanaceous plants such as eggplant, tomato, potato, and pepper; cucurbitaceous plants such as cucumber, white gourd, and loofah.…”