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90年代以来,苹果的金纹细蛾在豫西地区发生逐年加重,由次要害虫上升为主要害虫。发生严重年份,苹果树虫叶率达30%~50%,造成大面积早期落叶落果,产量损失15%左右。为有效控制苹果金纹细蛾的发生为害,1994~1998年对其发生规律进行了观察和调查研...
Since the 90s, apple gold moths have been increasing year by year in the western region of Henan Province, from secondary pests to major pests. Occurrence of severe years, the apple tree leaf rate of 30% to 50%, resulting in large areas of early deciduous fruit loss of about 15%. In order to effectively control the occurrence of apple gold moth damage, from 1994 to 1998 its occurrence was observed and investigated ...