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近年由于三麦高产耐肥品种的推广和施肥水平的提高,穗蚜问题日益突出。为探明新情况下本地穗蚜发生特点,我们于1982～1984年连续三年进行了调查研究。 1.穗蚜种类。根据三年调查资料,新沂县三麦穗蚜主要有麦二叉蚜、麦长管蚜、玉米蚜和黍蚜等4种。其中以黍蚜为主,占总蚜量的89.2％;麦长管蚜次之,占7.8％;麦二叉蚜及玉米蚜仅零星发生,两者共占全蚜
In recent years, due to the promotion of Sanmai high-yielding and fertilizer-resistant varieties and the improvement of fertilization levels, the problem of ear-aphids has become increasingly prominent. In order to find out the characteristics of native spike aphid under the new situation, we conducted a survey in 1982 to 1984 for three consecutive years. Spike aphid species. According to the three-year survey data, three wheat aphids in Xinyi County are mainly wheat aphid, wheat aphid, corn aphid and millet aphid. Which accounted for 89.2% of the total aphid population; wheat aphid was the second, accounting for 7.8%; wheat aphid and corn aphid only sporadic occurrence, both accounted for the whole aphid