The previously identified female sex pheromone of cocoa pod borer, Conopomorpha cramerella, was re-evaluated for its attractive activity in different field conditions. It was found that lures containing 100-μg of synthetic sex pheromone blend, (E,Z,Z)- and (E,E,Z)-4,6,10-hexadecatrienyl acetates, and the corresponding alcohols in a ratio of 40:60:4:6 in a polyethylene vial attracted male C The Cocoa Pod Borer (CPB), Conopomorpha cramerella Snellen (Lepidoptera: Gracillariidae) is a pest that threaten the cocoa industry and lead to the technical constraint of cocoa production (Wiryadiputra, 1996). Feeding activity of the CPB larvae results in sticky and undeveloped seeds which make the seeds to be The cocoa pod borer,Conopomorpha cramerella. (Snellen) (Lepidoptera: Gracillariidae), has been re- ported as the most serious pest of cacao,Theobroma cacaoL., in Southeast Asia (Lim et al. 1982, Mumford 1986, Mumford and Ho 1988), and losses can be in excess of 30% of the crop (Beevor et al. 1986a). The managementofC.cramerellahasheavilyreliedonthe Cocoa pod borer (CPB), Conopomorpha cramerella Snellen (Lepidoptera: Gracillariidae) is a major pest of cocoa. Detection of the pest infestation using sex pheromone traps in the early growth and development of cocoa pods is important for an early warning system programme. The cocoa pod borer, Conopomorpha cramerella (Snellen) (Lepidoptera: Gracillariidae), has been reported as the most serious pest of cacao, Theobroma cacao L., in Southeast Asia ( Lim et al. 1982, Mumford 1986, Mumford and Ho 1988 ), and losses can be in excess of 30% of the crop ( Beevor et al. 1986a ). The cocoa pod borer, Conopomorpha cramerella (Snellen) (Lepidoptera: Gracillariidae), is the most serious pest of cocoa in Southeast Asia. Analyses of ovipositor washings and entrained volatiles from virgin female moths by gas chromatography (GC) linked to electroantennography (EAG), and comparison of EAG responses from the male moth to synthetic A 200 ha field trial to control the cocoa pod borer (CPB), Conopomorpha cramerella, using synthetic pheromone-baited mass trapping at a maximum density of 16 traps ha−1was conducted in Sabah, East Malaysia. External damage to the pod caused by the cocoa pod borer is seen as entry and exit holes created by the tunnelling larvae on the husk, and overall premature or uneven ripening (yellowing) of pods caused by internal feeding activity. If pods are cut open, characteristic tunnels and scarification caused by feeding commonly cause beans to stick together. Harvested beans clump together in severe infestations and may be impossible to extract from damaged pods. Cocoa pod borer (Conopomorpha cramerella) is a pest of cocoa in South-East Asia. It first appeared in Sabah, Malaysia, in 1980, but at that time there was no quantitative information on the damage it could cause. This paper describes the derivation of a damage relationship relating yield loss to pest attack level. When < 60% of harvested cocoa pods show internal attack, yield loss is < 5%, but with 90% of pods attacked yield loss is about 40%. When bean extraction from attacked Two new unambiguous synthesis routes for the components of the sex pheromone of the cocoa pod borer. Conopomorpha Cramerella (Snellen), are successfully developed. Key Words: (E.Z.Z)-4,6,10-hexadecatrienyl acetate, (E.E.Z)-4,6,10-hexa-decatrienyl acetate, sex pheromone, cocoa pod borer. Article Metrics.
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Pod borer pest attack is common to cowpea crop. If the pest is not controlled before fruiting the crop will be damaged completely, as a result the farmer will lost his income. So Rogor @2ml/litre ...
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