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通过生命表研究,分析了环境因子对泰山红蚧种群数量变动的影响,得出了种群趋势指数(I)值。一龄和二龄若虫期是种群数量下降的主要虫期,雄成虫羽化期是影响种群数量的关键虫期,风雨是雄成虫的致死关键因子。捕食性天敌红蚧象,蒙古光瓢虫,红点唇瓢虫及蛹期的一种寄生蜂对泰山红蚧也有较强的控制能力。在雄成虫羽化盛期前,用洗衣粉800倍液,洗衣粉加50%敌敌畏1000倍液、洗衣粉加40%乐果1000倍液喷雾,35天后调查,造成的雌虫不受精率分别为87.2%、97.9%、100%。
Through the life table study, the influence of environmental factors on the population change of Reichenotarcus taishaei was analyzed, and the trend index (I) of the population was obtained. The first instar and the second instar nymph stages are the main stages of the population decline. Male eclosion stage is the key period affecting the population, and the storm is the key factor of lethality of male adult. Reef predators such as red scale, Mongolia ladybug, red spot ladybug and parasitoids on pupal stage Taishan red scale also have strong control. Before the emergence of adult male eclosion, with 800 times detergent, detergent plus 50% dichlorvos 1000 times, detergent plus 40% dimethoate 1000 times spray, 35 days after the investigation, resulting in female insemination rates were 87.2%, 97.9%, 100%.