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Archive: Published Articles

ENVIRONMENT AND ECOLOGY

Interdisciplinary International Science Journal

Volume 41 (2023)
Issue 3
Page No. 1472

Authors:

 

B. Sujatha*

Dr. YSRHU- College of Horticulture, Parvathipuram, Seetharampuram  Manyam , Andhra Pradesh, India

 

Dr Sanjay Kumar Sahoo, Vijay Kumar

Department of Entomology, Post Graduate College of Agriculture, Dr Rajendra Prasad Central  Agricultural University, Pusa, Samastipur, Bihar, India

 

Environment and Ecology 41(3): 1472—1478, July—September 2023
Article DOI: https://doi.org/10.60151/envec/LVCP7446
ISSN 0970-0420

Field Bioefficacy of Thiamethoxam 25WG over 
Lipaphis erysimi (Kalt.) in Mustard Eco-System in Open Field Conditions

 

B. Sujatha, Sanjay Kumar Sahoo, Vijay Kumar

Received 2 February 2023, Accepted 25 April 2023, Published on 24 July 2023

 

ABSTRACT

Mustard aphid, Lipaphis erysimi Kaltenbach is a key pest of rapeseed-mustard and form the basis of crop loss from December to March. Field assessment was done to evaluate the bioefficacy of various doses of thiamethoxam over L. erysimi in mustard agroecosystem. Thiamethoxam 25%WG @ 25g a.i per ha was highly efficient against aphid with high grain yield, cost-effective. The results of former dose was on par with 37.5 g a.i per ha and 50 g a.i per ha after first and second spray with an interval of 10 days under open field environment with > 80% of decline in aphid populations. This was further followed by standard check dimethoate 30 % EC @ 200 g a.i per ha which was on par with thiamethoxam 25%WG@ 12.5 and 16.67 g a.i per ha. The control plot was least efficient and showed huge number of the mustard aphids. To manage the aphid population that reaches ETL, two applications with thiamethoxam 25 WG @ 25 g a.i. per ha at 10 days interval will be quite effective and provide good return.

Keywords    Thiamethoxam, Bioefficacy, Mustard, Aphids.

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