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Management of bollworms through variable insecticidal spray sequences on cotton (Gossypium species)

, : Management of bollworms through variable insecticidal spray sequences on cotton (Gossypium species). Indian Journal of Agricultural Sciences 66(8): 504-506

Field studies were conducted in Ludhiana, Indian Punjab, during 1992-94 using the insecticides fenvalerate, cypermethrin, deltamethrin, endosulfan, monocrotophos, quinalphos, triazophos and carbaryl to determine an effective spray regime for controlling bollworms on cotton.

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Thangaraju D.; Parameswarn S.; Jayaraj S., 1988: Insecticidal control of bollworms in upland cotton gossypium hirsutum. In a 3-year field experiment among synthetic pyrethroids fenvalerate 20 EC 0.075 kg ai/ha gave the lowest incidence of bollworms (Earias vittella Fab., Heliothis armigera Hubn., Pectinophora gossypiella Saunders) on green bolls (4.2%) and loculi (...

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