Natural enemy composition and movement in lowland rice field
2014
Pillon, G.S. | Gabriel, A.J.
Natural enemies are performing biological control functions in the field in reducing populations of insect pests. They can prevent significant insect pest problems and appear to be important for rice insect pest management. This study aimed to determine natural enemy abundance in the field, movement and habitat during rice and non-rice periods. Results showed that the natural enemies present were dominated by many species of spiders, coccinellids, among others. These natural enemies were also observed in the field margins during fallow period. This indicates that natural enemies monitored in rice moved to nearby field margins during follow period. It is necessary to provide them with appropriate habitat during non-rice period to build up their populations which later on migrate to rice fields and contribute to the reductions of insect pest populations.
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