Effects of foliar applications of selected insecticides on cocoa pests and pollinators

Abdul Ghani Ibrahim, . Effects of foliar applications of selected insecticides on cocoa pests and pollinators. pp. 361-366. ISSN 0126-6128

Cocoa plants sprayed with insecticide such as Gamma HCH methamidophos and cypermethrin using mistblowers at weekly intervals for 20 consecutive weeks produced high number of cocoa flowers but the percentage of effective pollination was not significantly different from the control. The effects of insecticides on the insects varied. The population of mosquitobug Helopeltis spp was low but there was fluctuation with the midges Forcipomyia spp. aphids Aphis spp and mealy bugs Cataenococcus spp. The emergence of midges from the ground traps indicated that spraying of insecticides did not affect the breeding of the midges in the cocoa field.

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Abstract

Cocoa plants sprayed with insecticide such as Gamma HCH methamidophos and cypermethrin using mistblowers at weekly intervals for 20 consecutive weeks produced high number of cocoa flowers but the percentage of effective pollination was not significantly different from the control. The effects of insecticides on the insects varied. The population of mosquitobug Helopeltis spp was low but there was fluctuation with the midges Forcipomyia spp. aphids Aphis spp and mealy bugs Cataenococcus spp. The emergence of midges from the ground traps indicated that spraying of insecticides did not affect the breeding of the midges in the cocoa field.

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Item Type:	Article
Additional Information:	4 graphs; 1 table; 13 ref. Summary (En Ms)
AGROVOC Term:	THEOBROMA CACAO
AGROVOC Term:	CIPERMETRIN
AGROVOC Term:	FORCIPOMYIA
AGROVOC Term:	HELOPELTIS/ APLICACION FOLIAR
AGROVOC Term:	POLINIZADORES
AGROVOC Term:	HCH
AGROVOC Term:	APHIDOIDEA
AGROVOC Term:	PSEUDOCOCCIDAE
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:56
URI:	http://webagris.upm.edu.my/id/eprint/20302

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