Effect of releasing Amblyseius barkeri on controlling Panonychus citri on pomelo
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Key Words：realeasing， Amblyseius barkeri， control， pomelo， Panonychus citri
Abstract： Trials and demonstrations of releasing Amblyseius barkeri （Hughes） to control Panonychus citri McGregor on pomelo (variety :Shatian) were carried out in Ji′an, Jiangxi Province in 2007~2008. The results showed that released A. barkeri reproduced to large population in pomelo orchards, and was effectively to control P. citri. After releasing three to four paper bags with of A. barkeri (600 individuals each bag) on each pomelo tree, the density of P. citri was significantly decreased to the level below thresholds, which may decrease amount of pesticide, and consequently decrease cost of controlling and improve ecological environment and quality of pomelo fruit.