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Interspecific competition between two parasitoids of the mealybug, Oracella acuta (Lobdell) (Hemiptera: Pseudococcidae)Author(s): Jiang-Hua Sun; Stephen R. Clarke; Gary L. Debarr; C. Wayne Berisford
Source: Journal Entomol. Science 39(1): 136-139
Publication Series: Miscellaneous Publication
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DescriptionThe pine-feeding mealybug, Oracella acuta (Lobdell), was accidentally introduced and established in Guangdong Province, China, in 1988 (Sun et al. 1996, J. For. 94: 27-32). It spread rapidly through the extensive plantations of exotic slash pine, Pinus elliottii Englem. var. elliottii, a species native to the U.S. Total volume growth loss has exceeded 33% in some cases, though tree mortality has not been reported (Ren et al.2000, Natur. Enemies of Insects 22: 140-143). Oracella acuta is seldom a pest in the U.S. due to an effective natural enemy complex (Clarke et al. 1990, Environ. Entomol. 19: 99-103; Sun et al. 2002, J. Entomoi. Sci. 37: 177-181). Outbreaks occur when natural enemy populations are drastically reduced, particularly by insecticide applications (Clarke et al. 1992, J. Econ. Entomoi. 85: 1246-1252).
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CitationSun, Jiang-Hua; Clarke, Stephen R.; Debarr, Gary L.; Berisford, C. Wayne 2004. Interspecific competition between two parasitoids of the mealybug, Oracella acuta (Lobdell) (Hemiptera: Pseudococcidae). Journal Entomol. Science 39(1): 136-139
KeywordsAllotropa, Zarhopalus debarri, biological control
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