Impact of insecticide-manipulated defoliation by Japanese beetle (Popillia japonica) on grapevines from vineyard establishment through production.

@article{Hammons2010ImpactOI,
  title={Impact of insecticide-manipulated defoliation by Japanese beetle (Popillia japonica) on grapevines from vineyard establishment through production.},
  author={Derrick L. Hammons and S. Kaan Kurtural and Daniel A Potter},
  journal={Pest management science},
  year={2010},
  volume={66 5},
  pages={
          565-71
        }
}
BACKGROUND Japanese beetle (JB), Popillia japonica Newman, is a severe pest of grapes in the southeastern USA where viticulture is a growing industry. This study evaluated the impact of foliar injury from JB field populations on growth, fruit ripening, berry composition and yield of young vines of six cultivars from vineyard establishment through the first year of production. Three spray regimes, carbaryl applied every 7 or 14 days, or no insecticide, were used to manipulate levels of… 
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Japanese Beetle Defoliation Reduces Primary Bud Cold Hardiness during Vineyard Establishment
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Seasonal Abundance, Defoliation, and Parasitism of Japanese Beetle (Coleoptera: Scarabaeidae) in Two Apple Cultivars
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Assessing the effects of apple cultivar on season-long abundance of adult P. japonica and their defoliation may help growers determine which apple cultivars should be prioritized for scouting and management efforts and provide an estimate of potential biological control by I. aldrichi in agricultural areas in the Midwest.
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Several coleopteran foliar feeders are associated with grape in eastern North America. The most important of these is the JB, often responsible for extensive defoliation. This defoliation is very
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