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EFFECTS OF TEMPERATURE ON EMERGENCE DYNAMICS OF CONOPOMORPHA SINENSIS (LEPIDOPTERA: GRACILLARIIDAE)

文献类型： 外文期刊

作者： Li, Pengyan 1 ; Chen, Bingxu 1 ; Dong, Yizhi 1 ; Yao, Qiong 1 ; Xu, Shu 1 ; Chen, Kaige 1 ; Chen, Gengmin 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Guangdong Prov Key Lab High Technol Plant Protect, Plant Protect Res Inst, Guangzhou 510640, Guangdong, Peoples R China

关键词： duration of emergence;emergence pattern;emergence rate;sex ratio;litchi fruit borer

期刊名称：FLORIDA ENTOMOLOGIST （ 影响因子：1.425； 五年影响因子：1.595 ）

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收录情况： SCI

摘要： Conopomorpha sinensis Bradley (Lepidoptera:Gracillariidae) is a destructive pest of litchi (Litchi chinensis Sonn.; Sapindales:Sapindaceae) and longan (Dimocarpus longan Lour.; Sapindales:Sapindaceae). We studied the effects of temperature on the emergence of the litchi fruit borer at 5 temperatures (15, 20, 25, 30, and 35 degrees C), 80% RH and 14:10 h L:D. Temperature significantly affected the emergence duration and emergence rate, but not the sex ratio and the emergence pattern. The duration of emergence increased as the temperature decreased. The emergence rates at 20, 25, and 30 degrees C were significantly higher than at 15 and 35 degrees C. The sex ratio of C. sinensis under the different temperature treatments remained at approximately 1:1, and was unaffected by temperature. The emergence pattern of females was similar to that of males in that both had 2 peaks. Most moths emerged primarily from 20:00 (4 h after the onset of darkness) to early in the morning. More females emerged during a first peak, whereas most males emerged during a second peak. As shown in the 24-h-long record, the greatest emergence per h of females occurred at 20:00, and that of males at 0:00. This pattern did not vary significantly among the various temperatures. This study supports artificial rearing and the forecasting of C. sinensis populations in the field.

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