View source for Bulletin of Entomological Research (1996) 86, 467-474

{{Publication
|Publication authors=Y.A. See and K.C. Khoo
|Publication date=1996
|dc:title=Influence of ''[[Dolichoderus thoracicus]]'' (Hymenoptera: Formicidae) on cocoa pod damage by ''[[Conopomorpha cramerella]]'' (Lepidoptera: Gracillariidae) in Malaysia
|Publication journal=Bulletin of Entomological Research
|prism:volume=86 (4)
|prism:startingPage=467
|Last page=474
|Publication abstract=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. Pods were harvested from ant-abundant and ant-scarce plots and categorized into fully extractable, partially extractable and unextractable, the last category reflecting the most severe degree of ''C. cramerella'' infestation. An abundance of ''D. thoracicus'' was associated with significant reductions in the percentage unextractable pods but had little or no influence on the other two categories. Mean percentage pods infested was generally kept below 50% in ant-abundant plots and mostly exceeded the 50% level in ant-scarce plots. Other studies were: a survey of individual pods relating rate of infestation by ''C. cramerella'' to ''D. thoracicus'' abundance, an experiment which examined the effect of ''D. thoracicus'' exclusion on the rate of ''C. cramerella'' infestation, and a count of exit holes made by emerging prepupae of ''C. cramerella'' in relation to varying degrees of ''D. thoracicus'' abundance. The results showed a clear negative effect of ''D. thoracicus'' abundance on ''C. cramerella'' infestation rate. The results also indicated that the protection conferred by ''D. thoracicus'' was largely confined to the particular pod on which it was present. Rat damage, monitored as a subsidiary study, was higher in ant-scarce plots throughout the study period.
|AbstractCC=Yes
|AuthorsAbstract=No
|DOI=10.1017/S0007485300035045
|Dc:language=English
|Research topic=environment - cropping system/rotation
|Research2P=damage/losses/economics
|Is book=No
}}
{{Pest record
|Pest=Conopomorpha cramerella
|Country=Papua New Guinea
|Quarantined=No
}}
{{Pest record
|Pest=Conopomorpha cramerella
|Country=Philippines
|Quarantined=No
}}
{{Pest record
|Pest=Conopomorpha cramerella
|Country=Samoa
|Quarantined=No
}}
{{Pest record
|Pest=Conopomorpha cramerella
|Crop=Cacao (Theobroma cacao)
|Country=Malaysia
|Quarantined=No
}}
{{Pest record
|Pest=Helopeltis theivora
|Crop=Cacao (Theobroma cacao)
|Country=Malaysia
|Quarantined=No
}}
{{Pest record
|Pest=Dolichoderus thoracicus
|Country=Malaysia
|Quarantined=No
}}