【摘要】 田间调查结果显示:冬枣绿盲蝽在鲁北地区一年发生5代,以第一代危害最重,高峰期在4月下旬至5月上旬;越冬卵分布以修剪后枝条的残茬为主,占被调查卵量的88.4%。降水对次年虫口数量影响很大,而对当年影响很小。干旱会显著降低次年绿盲蝽的虫口数量。更多还原

【Abstract】 The results of field investigation indicated that Lygus lucorum on winter jujube occurred for 5 generations every year in north Shandong province,the damage of the first generation was the most serious,and its harmful peak appeared in the last ten days of April and the first ten days of May.The overwintering eggs of Lygus lucorum were mainly laid on the residual stubbles cut from the braches of winter jujube,occupying 88.4% of the investigated eggs.Precipitation had enormous influence on the next year’s population density of this insect pest,but had little implication on this year’s.The drought could obviously decrease the population density in the next year.更多还原