Vol. 12, Issue 1 (2023)

Author(s):
RU Medshikar, ST Aghav, CB Wayal, CS Chaudhari and MR Patil

Abstract:
An experiment entitled “Seasonal dynamics of thrips, T. tabaci and fruit flies, B. cucurbitae on cucumber” was conducted at PG Research Farm, Department of Agricultural Entomology, Mahatma Phule Krishi Vidyapeeth, Rahuri during summer 2022. Studies on seasonal dynamics revealed that, thrips incidence started from 6^th meteorological week (0.34 thrips/plant) and lasted upto the harvesting of the crop i.e. 19^th standard meteorological week (1.3 thrips/plant). Thrips population ranged from 0.34 thrips/plant to 15.22 thrips/plant during the crop growth period. Highest population of thrips was found in last week of March i.e. 17^th standard meteorological week (15.22 thrips/plant). The fruit fly incidence started from 6^th standard meteorological week (3 fruit flies/trap) and lasted upto the harvesting of the crop i.e. 19^th standard meteorological week (5 fruit flies/trap). Fruit fly population ranged from 3 fruit flies/trap to 24 fruit flies/trap during the crop growth period. The population of fruit flies then gradually increased up to the 14^th standard meteorological week i.e. first week of April (24 fruit flies/trap) which was found to be the highest trap catches during whole experimental trail.