Vol. 11, Special Issue 7 (2022)

Author(s):
Rinkita Biyani, Hemant Swami, Lekha, Gaurang Chhangani, Mansor Lodha and Vikram

Abstract:
The present investigation on “Comparative studies of life cycle of lac insect, Kerria lacca (Kerr) on different host during Baisakhi season” was carried out in 2021-22 at lac insect gene bank cum garden situated at Department of Entomology, Rajasthan College of Agriculture, Udaipur (Rajasthan). Seven different hosts plants viz; Ber, Palas, Flemingia, Pigeon pea, Kikar, Custard apple, Acacia sp. were utilized to record the various life cycle parameters of the lac insect. The different parameters of the life cycle of lac insect reveals that the maximum mean initial settlement (118.00 crawlers per sq. cm) and mean final settlement (113.67 crawlers per sq. cm) were recorded on lower portion of the Ber host while minimum mean initial mortality of 2.99 per cent was recorded on Flemingia sp. on lower portion of the plant and on upper and middle portion of the plant Ber host recorded the minimum mean initial mortality of 3.01 and 4.35 per cent of first instar crawlers. The minimum mean duration to male emergence of 97.33 days was recorded on Ber at the lower portion with maximum density of cells at maturity i.e. 5.33 female cells per sq. cm at lower portion.