期刊
BIOCONTROL SCIENCE AND TECHNOLOGY
卷 22, 期 5, 页码 551-557出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09583157.2012.668515
关键词
predation; soil depth; soil moisture; olfactory response
资金
- Chinese Agro-Industry Special Fund for Public Welfare [200903047]
Predation by red imported fire ants, Solenopsis invicta on oriental fruit fly, Bactrocera dorsalis puparia was evaluated. No significant olfactory response of the workers was observed at 0, 2 and 4 days after fly pupation, whereas the workers were significantly attracted by the 6th day old puparia. We found S. invicta that predated on puparia of B. dorsalis in the field. The predation rate was negatively correlated with the depth of puparia in the soil. The predation rate was 70% at 4 cm depth; whereas, zero predation rate was observed at 6 cm depth. The predation rate was also significantly affected by soil moisture. The predation rate was 66.5% and 72.1% at soil moisture values of 40% and 80%, respectively, and no predation occurred at soil moisture value of 0%.
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