The “Population dynamics of insect pests on rice crop during kharif season” field trial was carried at the Organic Research farm Kargua Ji, Department of Entomology, Institute of Agricultural Sciences, Bundelkhand University, Jhansi (Uttar Pradesh) during Kharif June to October 2023-24. According to the population results, the grass hopper (Caelifera spp.) in 2023-24 Kharif season was commenced from 28^th standard week (July second week) with an average 0.69 no. of grass hopper per plant and gradually reached peak level of 8.37 no. of grass hopper per plant at 34^th standard week (August last week). Brown plant hopper (Nilaparvata lugens Stal) was commenced from 29^th standard week (July third week) with an average 3.37 brown plant hopper / plant and gradually reached peak level of 18.18 brown plant hopper / plant at 36 standard weeks (September second week). Yellow stem borer (Scirpophaga incertulas Walker) was commenced from 30^th standard week (July fourth week) with an average 2.92 yellow stem borer /plant and gradually reached peak level of 17.09 yellow stem borer / plant at 35^th standard week (September first week). Gundhi bug (Leptocorisa acuta Thunberg) was commenced from 31^th standard week (August first week) with an average 1.08 nymph per plant and gradually reached peak level of 9.25 adult per plant at 36^th standard week (September second week).

Objectives

1.       To study the population dynamics of rice gundhi bug.

2.       To study the management of rice gundhi bug (Leptocorisa acuta Thunberg) by different bio-pesticides.