Studies on biology of red banded foliage thrips (Selenothrips rubrocinctus) under Bhubaneswar conditions of Odisha

Abstract

Studies on foliage thrips of Cashew with special reference to Red Banded Thrips (Selonothrips rubrocinctus Giard.) was conducted at the Cashew Research Station (CRS), All India Coordinated Research Project (AICRP) on Cashew, Orissa University of Agriculture and Technology (OUAT), Bhubaneswar during 2016-17 and 2017-18. Periodical observation on the Red Banded Thrips infestation were recorded from unsprayed cashew plants in the germplasm block of 15-16 years old and the thrips incidence was correlated with corresponding weather parameters during the period of sampling. The total life cycle of the pest was completed in 14.60±0.34 days (2 weeks). The study on biology of the insects revealed that the egg stage was 3.23±0.76 days, the total nymphal period was 4±0.38 days, the pre-pupal stage was 1.01±0.37 days, the pupal stage was 2.53±0.58 days and finally the adult stage was 3.85±0.58 days.