Vol. 11, Special Issue 5 (2022)

Author(s):
Beerendra, Priyanka Nagdev, Jayalaxmi Ganguli and Ambika Nag

Abstract:
The present studies on the biology of green lace wing, Chrysoperla sp. (Neuroptera: Chrysopidae) fed on curry leaf psylla, Diaphorina citri was conducted in the Bio-control Laboratory, IGKV, Raipur during 2018-19. The results revealed that the average incubation period was (2.94±0.15 days) with a mean hatching per cent of 66.71±1.78. There were three larval instars with an average duration of 4.05±0.10; 3.7±0.20 and 4.4±0.28 days respectively. Mean pupal period wasof 8.1±0.20 days and the average total development period was estimated to be of 23.19 days. The mean pre-oviposition, oviposition period and fecundity was of 6.1±0.35 days, 6.1±0.35 days and 177.8±2.14 eggs respectively. Mean longevity of male and female was 24.6±0.43 and 29.1±0.53 days respectively and the average sex-ratio of M: F was of 0.75:1 indicating dominance of females in population.