杜迎剛

摘要：為確定橘小實蠅（Bactrocera dorsalis）啤酒廢酵母酶解蛋白中多殺菌素的添加量，室內(nèi)測定了多殺菌素與啤酒廢酵母酶解蛋白組配后對橘小實蠅的LC90、LT90及取食行為的影響。結果表明，多殺菌素對橘小實蠅雌、雄成蟲在24 h內(nèi)的LC90分別為5.461 5、7.308 5 mg/kg。2.5、6.3、16.0、40.0、100.0 mg/kg多殺菌素對橘小實蠅雌成蟲的LT90分別為56.769 6、49.647 6、16.283 2、7.431 8、4.462 2 h，對雄成蟲的LT90分別為57.388 8、52.165 2、17.615 2、7.562 8、4.834 5 h。40 mg/kg和100 mg/kg多殺菌素對6日齡和3日齡橘小實蠅雌雄成蟲的取食量和吐出率均無顯著影響。

關鍵詞： 橘小實蠅（Bactrocera dorsalis）；多殺菌素；LC90；LT90；取食行為

中圖分類號：S482.3+9；S436.661.2+9 文獻標識碼：A 文章編號：0439-8114（2013）05-1134-03

Research on Spinosad Dose in Beer Waste Yeast Hydrolysate of Bactrocera dorsalis Protein Bait

DU Ying-gang

（Weifang University of Science and Technology，Shouguang 262700， Shandong， China）

Abstract： In order to determine the quantity of spinosad in beer waste yeast hydrolysate of oriental fruit fly（Bactrocera dorsalis） protein bait， laboratory tests were conducted to assess 90% lethal concentration（LC90） and 90% lethal time（LT90） of spinosad in beer waste yeast hydrolysate on oriental fruit flies as well as the effect of spinosad on feeding behavior of oriental fruit flies. The results showed that LC90 of spinosad to male and female oriental fruit fly adults in 24 h was 7.308 5， 5.4615 mg/kg respectively. LT90 of 2.5， 6.3， 16.0， 40.0 and 100.0 mg/kg spinosad on female oriental fruit fly adults was 56.769 6， 49.647 6， 16.283 2， 7.431 8， 4.462 2 h respectively； while of male oriental fruit fly adults was 57.388 8， 52.165 2， 17.615 2， 7.562 8， 4.834 5 h respectively. Moreover， 40 mg/kg or 100 mg/kg spinosad in beer waste yeast hydrolysate had no significant effect on ingestion and regurgitation of 3-day-old and 6-day-old male and female oriental fruit fly adults.

Key words： oriental fruit fly（Bactrocera dorsalis）； spinosad； LC90； LT90； feeding behavior