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高粱蚜虫是忻县地区农业生产上的一种主要害虫。我们从1971-1979年经过9年的观察研究,初步明确了忻定盆地高粱蚜虫的发生与六、七月的气温、雨量的关系,根据这种关系制定了一个高梁蚜虫的发生趋势预测图,旨在使高粱蚜虫的防治工作由被动转为主动。一、高粱蚜虫发生、发展与六、七月气温、雨量的关系 1971-1979年的9年中,忻定盆地高粱蚜虫有过1次大发生、5次小发生、3次中发
Sorghum aphid is a major pest in agricultural production in Xin County. From 1971 to 1979, after nine years of observation and study, we initially clarified the relationship between the occurrence of sorghum aphids and the temperature and rainfall in June and July in the Xinding Basin. Based on this relationship, we formulated a forecast of the trend of sorghum aphid, Designed to make sorghum aphids control from passive to active. First, the occurrence and development of sorghum aphids and six or seven months, the relationship between temperature and rainfall Nine years from 1971 to 1979, the Xinding basin sorghum aphids have had a major occurrence, 5 times a small, 3 times in the hair