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Resistance of chestnut trees to Asia chestnut gall waspAuthor(s): S. Anagnostakis; S.L. Clark; H. McNab
Source: In: 101st Annual Report of the Northern Nut Growers Association, Inc. Wooster, Ohio: July 18 - 21, 2010. 1:15-17.
Publication Series: Scientific Journal (JRNL)
PDF: View PDF (791.85 KB)
DescriptionAsian chestnut gall wasp (Dryocosmus kuriphihus) was introduced into Georgia (USA) in 1975 and has been spreading north throughout the range of American chestnut (Castanea dentate). This pest is now present throughout most of Tennessee. In 2003, it was found near Cleveland, Ohio and has been spreading south from there. In 1995, hybrid chestnuts with C. dentate female parents and two Ozark chinquapin x Chinese chestnut male parents (C. ozarkensis x C. mollissima) were planted in North Carolina, where this introduced insect is now naturalized. Of the 93 trees planted, 69 survived four years, and 36 were still surviving after 14 years, the progeny of one male parent had a 67% survival and of the other, 16% survival. Among the survivors, 31 had no wasp galls in 2009 and 4 had 10 or fewer galls. The four female parents (American chestnuts and half-sibs) were assumed to be fully susceptible, so the genes controlling resistance to infestation cannot be cytoplasmic. If resistance is conferred by one or two nuclear genes, resistance can easily be transferred into timber chestnuts and orchard chestnut cultivars.
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CitationAnagnostakis, S.; Clark, S.L.; McNab, H. 2011. Resistance of chestnut trees to Asia chestnut gall wasp. In: 101st Annual Report of the Northern Nut Growers Association, Inc. Wooster, Ohio: July 18 - 21, 2010. 1:15-17.
Keywordschestnut, gall wasp
- Preliminary report on the segregation of resistance in chestnuts to infestation by oriental chestnut gall wasp
- Growth, survival, and competitive ability of chestnut (Castanea Mill.) seedlings planted across a gradient of light levels
- Impact of silvicultural treatment on chestnut seedling growth and survival
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