Population dynamics and efficacy

The present investigation entitled “Population dynamics and management of major insectpests of broccoli (Brassica oleracea var italica) with special reference to diamondback moth (Plutella xylostella L)” was conducted in the Research Cum Instructional Farm of Raj Mohini Devi College of Agriculture and Research Station, Ambikapur (C.G.) during rabi 2019-20.

7p cothumenhmong11 11-05-2021 9 1   Download

Damping off caused by Pythium aphanidermatum is one of the destructive diseases in chilli (Capsicum annuum L.) worldwide. The present study was carried in vitro conditions to assess the possible use of antagonists (biocontrol agents) in field conditions. Trichoderma viride, Trichoderma harzianum, Pseudomonas flourescens and Bacillus subtilis were evaluated for bio- assay study by production of volatile metabolites.

6p nguathienthan4 21-04-2020 15 2   Download

An experiment was conducted during rabi 2014-15 at In-check farm, BCKV, Nadia, West Bengal to study the population dynamics of mustard sawfly, Athalia lugens proxima (Klug) and efficacy of some insectides against it on mustard. The peak population of mustard sawfly was recorded in the second week of January, 2014 when minimum and maximum temperature was 9.30°C and 25.87°C respectively, the minimum and maximum relative humidity was recorded to vary between 55.43% and 83.86% respectively with 0 mm rainfall and 6.4 Sunshine hours.

7p caygaocaolon3 27-02-2020 18 1   Download

Mites pose an increasing threat to grape cultivation in grape growing areas in Telangana and Andhra Pradesh causing heavy loss in the field. Mites which are minor pests earlier in grapes have become serious, particularly before harvest of the crop in the recent years. Two species viz., Tetranychus urticae, and Eutetranychus orientalis are found causing damage to grapevine both in Telanagna and Andhra Pradesh. Among them, the two spotted red spider mite T. urticae causes severe loss.

7p nguaconbaynhay1 04-12-2019 13 1   Download