RELATIVE TOXICITY OF SOME CHEMICAL PESTICIDES AGAINST JUTE HAIRY CATERPILLAR (SPILOSOMA OBLIQUA W.) IN TOSSA JUTE (CORCHORUS OLITORIUS L.)

Md. Sohanur Rahman (), Md. Nazrul Islam, Mohammad Sahin Polan, Fakhar Uddin Talukder and Md. Mia Mukul
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Md. Sohanur Rahman: Department of Entomology, Bangladesh Jute Research Institute, Dhaka, Bangladesh
Md. Nazrul Islam: Department of Entomology, Bangladesh Jute Research Institute, Dhaka, Bangladesh.
Mohammad Sahin Polan: Department of Entomology, Bangladesh Jute Research Institute, Dhaka, Bangladesh.
Fakhar Uddin Talukder: Department of Plant Pathology, Bangladesh Jute Research Institute, Dhaka, Bangladesh.
Md. Mia Mukul: Department of Olitorius breeding, Bangladesh Jute Research Institute, Dhaka, Bangladesh.

Malaysian Journal of Sustainable Agriculture (MJSA), 2021, vol. 5, issue 2, 115-122

Abstract: Pesticides have been a major contributor to the growth of agricultural productivity and food supply. Pesticides were a key factor in significant agricultural productivity growth during the last century and continue to be a critical factor in reducing crop damage. Fifteen insecticides were investigated to select their effective and economic doses against Hairy caterpillar in a Tossa Jute variety during April-October’ 2020 at the Department of Entomology, Manikganj and Narayanganj, Bangladesh Jute Research Institute (BJRI), Bangladesh following Randomized Completely Block Design with three replications. All new insecticides with a standard were found effective for controlling jute hairy caterpillar giving 95.38, 94.55, 95.19, 92.85, 93.59, 94.22, 93.49, 93.62, 89.84, 95.72, 93.56, 93.38, 94.42, 95.39, 91.34 and 95.41 % at Manikganj; 95.78, 93.32, 93.97, 93.18, 92.09, 92.49, 93.74, 92.93, 92.29, 93.69, 93.95, 93.17, 95.31, 94.99, 92.11 and 94.53 % reduction of infestation at Narayanganj at 5th day after spray over control plot respectively. In Manikganj, the highest fibre yield (3.66 t/ha) was found in the plot treated with Rock 20 EC and the lowest (2.96t/ha) was found in Reset 20WDG treated plot. In case of Narayanganj, the highest fibre yield (3.85 t/ha) was found in the plot treated with Proxy 20 EC and the lowest (2.79t/ha) was found in Daman treated plot. These insecticides can be recommended for the farmer’s use to control jute hairy caterpillar.

Keywords: effectiveness; insecticides; jute hairy caterpillar; jute; yield. (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:zib:zbmjsa:v:5:y:2021:i:2:p:115-122

DOI: 10.26480/mjsa.02.2021.115.122

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