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DOSE OPTIMISATION OF INSECTICIDES FOR THE MANAGEMENT OF THE PSEUDOSTEM WEEVIL ODOIPORUS LONGICOLLIS (OLIV.) (CURCULIONIDAE : COLEOPTERA) ON BANANA

C. Gailce Leo Justin, D. Rajakumar, J.D. Nirmalatha, J. Prem Joshua, M. Jayasekhar

Affiliations

¹Horticultural Research Station, Tamil Nadu Agricultural University, Pechiparai - 629 161, India

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Cite article:- Justin Leo Gailce C., Rajakumar D., Nirmalatha J.D., Joshua Prem J., Jayasekhar M. (2025). DOSE OPTIMISATION OF INSECTICIDES FOR THE MANAGEMENT OF THE PSEUDOSTEM WEEVIL ODOIPORUS LONGICOLLIS (OLIV.) (CURCULIONIDAE : COLEOPTERA) ON BANANA. Agricultural Science Digest. 26(2): 117 - 119. doi: .

ABSTRACT

Field trials were conducted for optimising the dose of insecticides for the management of the pseudostem weevil, Odoiporus longicollis (Oliv.) on banana. Studies revealed that pseudostem injection of monocrotophos or dimethoate along with water @ 1:5 ratio was significantly superior in controlling the pest. The insecticide water mixture was administered @ 2 ml/injection point at 60 cm of the stem and another 2 ml at 150 cm of the pseudostem from ground level in the opposite direction. These treatments recorded an average bunch yield of 10.86 kg/plant and 10.58 kg/plant with an average bunch recovery of 84.20 and 81.32 per cent respectively. Theproblems encountered in the pseudostem injection of monocrotophos along with water in the ratio of 1.5: 3.5 are discussed.

KEYWORDS

REFERENCES

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Dutt, N. and Maiti, B.B. (1972). Indian J. Entomol., 34: 272-289.
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