Cocoa pod borer damages cocoa and rambutan fruit, causing significant yield loss. In cocoa, fruit damage makes the processing of cocoa pods difficult and reduces cocoa bean quality. In rambutan, the pest tunnels into leaves, stems and occasionally fruit, making it unmarketable. The relationship between abundance of Dolichoderus thoracicus (Smith) and damage to cocoa pods caused by Conopomorpha cramerella Snellen was examined in a series of experiments. 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 29 Cocoa is the livelihood of many smallholders along the wet tropics. Cocoa production in South 30 East Asia and the Pacific is under threat from the cocoa pod borer, Conopomorpha cramerella. 31 Affected areas can lose up to 50% of their crop production. In this review, we appraise the 32 identity and distribution of recorded C. cramerella. Observations on pheromone-baited mass trapping for control of cocoa pod borer, During the first 2 days of the trial, all CPB moths caught in traps were sexed and 98% were found to be males. Cocoa pod damage assessment Damage was assessed at 28, 12 and two pod-monitoring stations, each of 24 trees, in the mass-trapped (total area sampled 0.813 ha), untreated A (0.356 ha) and untreated B (0 Spread of the cocoa pod borer occurs through movement of the pods, leaves and other vegetation to which the pupae are attached. Spread also occurs as larvae within rambutan fruit. Impact. The larvae or caterpillars do the damage by boring into the young, green pods and feeding on the tissues that surround the beans. Sometimes the larvae eat the seed coat of the cotyledons, the first leaves. Pods ripen early (Photo 4) and the beans are small, flat and often stuck together in a mass of dried Effect of cocoa pod borer, Conopomorpha cramerella, on cocoa yield and quality in Sabah, Malaysia. Abstract A damage relationship was derived relating yield loss in cocoa to the level of attack by Conopomorpha cramerella in Sabah, Malaysia. When <60% of harvested cocoa pods showed internal attack, yield loss was <5%, but with 90% of pods attacked yield loss was about 40%. When beans were 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. 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. INTRODUCTION. Conopomorha cramerellaSnellen (Lepidoptera: Gracillariidae) known as cocoa pod borer (CPB) is one of the most important limiting factors to cocoa production in Indonesia and Malaysia (Lim 1992; Wardojo 1996; van Grinsven 2003; Sulistyowaty and Wiryadiputra 2007; Shapiro et al. 2008).
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