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据１９９８年对江永县的袖园调查，每叶柑桔红蜘蛛虫口 ２５．１９头、卵 ９．７６粒，致使叶片灰白、失绿，部分叶片脱落，个别抽树落叶率达３０％以上。为何柑桔红蜘蛛如此猖撅？笔者调查认为主要是不当施药引起的，并提出相应对策。１不当施药的原因１．１种植户一次性购进?
According to a 1998 survey of the Jiangyong County cuckoo, 25.19 red spider insects per leaf of citrus leaves and 9.76 eggs of eggs resulted in gray and green chlorosis with some leaves falling off, and the deciduous leaf rate of individual deciduous trees reached more than 30% . Why citrus spider so rampant? The author believes that the main reason is improper spraying, and put forward corresponding countermeasures. 1 reasons for improper application of 1.1 1.1 one-time purchase of growers?