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白翅叶蝉是邵阳地区水稻的主要害虫。为了系统摸清白翅叶蝉在冬播作物上的活动情况,自1962年起,我们对白翅叶蝉的越冬场所、密度、寄主及环境因子等进行了调查研究。 一、白翅叶蝉在冬播作物上的分布情况:根据观察,白翅叶蝉到10月上、中旬晚稻乳熟以后,成虫开始陆续向小麦和田边杂草迁移。 邵阳地区早熟小麦于9月中、下旬播种,中熟小麦10月上、中旬播种,迟熟小麦系10月下旬以后播种。晚稻还没有收获,早、中小麦已经出苗,为白翅叶蝉提供了冬季饲料。如1963年9月18日播种的小麦,24日出苗,10月14日检查:50平方尺有
White-winged leafhopper is the main pest of rice in Shaoyang. In order to find out the activities of the white-winged leafhopper on the winter sowing system systematically, we investigated the overwintering sites, density, hosts and environmental factors of the white-winged leafhopper since 1962. First, the distribution of white-winged leafhoppers on winter sowing crops: According to the observation, white-winged leafhoppers to late October, mid-late rice milk cooked later, the adults began to gradually migrate to the weeds and the field side weeds. Early maturing wheat in Shaoyang in mid-September, late sowing, medium-maturing wheat in October on the mid-sowing, late-maturing wheat is planted after late October. Late rice has not been harvested, early, wheat has emerged, for the white-winged leafhopper provides winter feed. Such as the wheat sown on September 18, 1963, emerges on the 24th, and the check on 14 October: 50 square feet