Field evaluation of cypermethrin RIPCORD on the control of some major cocoa insect pests

Lee C.S., . and Woo Y.K., . and Hoo C.E., . (1986) Field evaluation of cypermethrin RIPCORD on the control of some major cocoa insect pests. [Proceedings Paper]

This paper presented the results of a series of field trials on the control of major insect pests in cocoa using several insecticides. The synthetic pyrethroids cypermethrin RIPCORD and alphamethrin as well as gamma BHC chlorinated hydrocarbon afforded effective control at 0.002 to 0.004 ai active ingredient spray solutions for the synthetic pyrethroids and 0.05 ai for gamma BHC. These compounds gave fast knockdown and good residual control of Helopeltis in mature cocoa. The carbamates MTMC and MPMC were not effective with young cocoa where the main leaf defoliators were grasshoppers Valanga sp and cockchaefers Apogonia and Adoretus sp cypermethrin at 0.004 and monocrotophos AZOIDRIN at 0.05 ai solutions provided were excellent foliar protection. Gamma BHC and alphamethrin were less effective

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Abstract

This paper presented the results of a series of field trials on the control of major insect pests in cocoa using several insecticides. The synthetic pyrethroids cypermethrin RIPCORD and alphamethrin as well as gamma BHC chlorinated hydrocarbon afforded effective control at 0.002 to 0.004 ai active ingredient spray solutions for the synthetic pyrethroids and 0.05 ai for gamma BHC. These compounds gave fast knockdown and good residual control of Helopeltis in mature cocoa. The carbamates MTMC and MPMC were not effective with young cocoa where the main leaf defoliators were grasshoppers Valanga sp and cockchaefers Apogonia and Adoretus sp cypermethrin at 0.004 and monocrotophos AZOIDRIN at 0.05 ai solutions provided were excellent foliar protection. Gamma BHC and alphamethrin were less effective

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. SB267 I61 1984 Call Number
AGROVOC Term:	Theobroma cacao
AGROVOC Term:	Cypermethrin
AGROVOC Term:	Insect pests
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:25
URI:	http://webagris.upm.edu.my/id/eprint/14369

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