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小地老虎是苗圃的主要害虫之一。在巴盟常常造成实生幼苗的巨大损失。对小地老虎的各种防治方法中,诱杀其成虫是一种重要的防治方法。而准确预测越冬代成虫的始见期和第一次高峰期,是及时设置诱杀器,提高防治效果,降低防治成本的关键。对其幼虫的发生期、发生量以及防治适期的预测预报,也有重要意义。为了准确预测预报小地老虎越冬代成虫的始见期和第一次高峰期,笔者从一九七四年开始在临河县狼山苗圃进行了诱测研究,并利用有关资料,制定出小地老虎越冬代成虫始见期和第一次高峰期的预测式。本预测式,又经过两年的实践检验,证明是简便可行的。
Small Tigers are one of the major pests in nurseries. Bam often causes huge losses of seedlings. Among the various control methods for the small tiger, the trapping and killing of adults is an important control method. Accurately forecasting the first and the first peak of overwintering adult worms is the key to setting the trapping device in time, improving the control effect and reducing the cost of prevention and treatment. The larvae of the occurrence, occurrence and prevention and control of the appropriate period of the forecast, also of great significance. In order to accurately predict the first trimester and the first peak of the overwintering adult adults of Siberian tiger, the author started the induction study in Langshan nursery of Linhe County in 1974 and made use of the relevant data to develop a small Tiger overwintering adult onset and the first peak of the predictive formula. This predictive formula, after two years of practical testing, proves to be simple and feasible.