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Classical biological control program for the mealybug Oracella acuta in Guangdong Province, China

Insect Science 2010年第2期17卷 129-139页

作者： Stephen R. Clarke Hai-Bin Yu Mu-Rong Chen Gary L. DeBarr Jiang-Hua Sun US Department of Agriculture Forest Service Forest Health Protection Lufkin Texas USA Forest Pest Control Station of Guangdong Province Guangzhou China US Department of Agriculture Forest Service Southern Research Station Athens Geogria2 USA State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing China

The mealybug Oracella acuta, native to the southeastern US, was accidentally introduced into slash pine plantations in Guangdong Province in China in 1988. A classical biological control program was initiated in 1995, and the parasitoids Allotropa oracellae, Acerophaus coccois, and Zarhopalus debarri were imported from the US. A total of 19 972 parasitized mealybugs were shipped to China from 1996-2004, from which 15 430 wasps emerged, 12 933 of which were the three target species. Efforts to establish a mass-rearing program for the parasitoids in China failed. Five field release sites were established, and 6 020 parasitoids were released. Only 118 individuals of the three imported species were collected during establishment checks, although several wasps were collected 1-2 years after the last parasitoid release. Over 2 000 Anagyrus dactylopii, a cosmopolitan parasitoid, emerged from the parasitized mealybugs collected, a majority from the Taishan area near the site of the original introduction ofO. acuta. To date the imported parasitoids have failed to establish, and natural enemies have not noticeably reduced mealybug populations.

关键词： acerophagus coccois Anagyrus dactylopii Allotropa oracellae classical biological control Oracella acuta Zarhopalus debarri

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