寒地水稻大青叶蝉生物学特性的研究

大青叶蝉(Cicadella viridis L.)在本地区一年2代,以卵在2至3年生幼嫩柳条表皮层下越冬.5月下旬至6月中旬越冬卵陆续孵化出若虫。6月中旬至7月中旬陆续羽化为越冬代成虫。第一代卵多于7月上中旬产生在禾本科作物和杂草的茎秆、叶鞘内.第一代若虫高峰出现在8月中旬左右,第一代成虫多在8月中旬至9月中旬羽化。9月下旬至10月上中旬成虫则陆续转移到附近的柳树上产卵越冬。

Study on The Biological Characteristic of The Cicadella Viridis in The Frigid Zone Rice

Cicadella viridis occurs two generations per year in the zone, the eggs hibernate under the surface of the young wicker. The overwintering eggs began to hatch from the late May to the middle of June, and adults emerge from the middle June to the middle July. The first generation eggs are laid in the stem and leaf sheath of grains and weeds. In the middle July, peak of the first generation nymphs occurs in middle August, and the first generation adults appeared in the rice field about in middle August to middle September. Adults fly to near willow from the late September to the early October and lay eggs and overwinter