The cocoa pod borer (Conopomorpha cramerella) is a serious pest of cocoa and rambutan. The pest was found on a cocoa farm in Far North Queensland in 2011, and has since been eradicated.
Overseas experience suggests that the pest is difficult to control and would probably become a major limiting factor to cocoa production systems in Australia if it were to become established.
The pest damages cocoa and rambutan fruit, causing significant yield loss. In cocoa, this 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 cocoa pod borer is known to occur in Saudi Arabia, China, India, Thailand, Brunei, Indonesia, Malaysia, Vietnam, Papua New Guinea, the Philippines, Samoa, Sri Lanka, Taiwan and Vanuatu.
|Life cycle|| |
|Damage to cocoa|| |
|Damage to rambutan|| |
In rambutan, the pest tunnels into leaves, stems and occasionally the fruit, making it unmarketable.
The material most likely to move cocoa pod borer from infested to uninfested areas include cocoa pods, rambutan fruit, other host fruit, and possibly vegetative material from cocoa and other hosts.
Below are a list of host species and their common names:
Control of cocoa pod borer is difficult. Overseas, the pest has been managed using an integrated approach that includes good crop hygiene, early pod harvesting, insecticide applications and insect trapping.
The pest was eradicated from Queensland by disrupting the life cycle of the cocoa pod borer through the removal of host material, application of insecticides, altering agronomic practices and implementing stringent biosecurity measures on the infested property.A district wide area freedom surveillance program was completed to prove the pest is no longer present in Queensland. Based on available literature, it is believed that Australia is the only country to have achieved national eradication of the pest.
|Report suspect sightings|| |
If you think you have seen cocoa pod borer, contact Biosecurity Queensland on 13 25 23.