短额负蝗发生规律及防治研究

短额负蝗在北纬３９°以北的大同地区一年发生一代，以卵在土壤中越冬，卵期为２７０～２８０天。翌年６月上旬开始孵化，蝗蝻共５龄，蝻期为５９～６６天。８月中旬开始羽化，１０月上旬成虫开始死亡，成虫期为４１～５２天。负蝗卵的孵化要求５ｃｍ土温达到１９℃以上，土壤湿度在１５％～２０％；羽化需要在２０～２５℃的晴朗天气。交尾期平均为２８天，有雌虫背负雄虫和多次交尾的习性，每头雌虫产卵１２０粒左右。雌虫三龄前主要集中在荒坡，地埂上为害双子叶杂草，四龄后转移到田间暴食为害双子叶作物，给农业生产带来严重损失。抓住防治适期进行农业、化学、生物防治，均可取得８５％以上的防治效果。

Studies on the Biology and Control of Atractomorpha sinensis Bol

it was found that there was only one generation a year of Atractomrpha sinensis Bol.in Datong region,Shanxi Province.The insect pests overwinter in the soil by the form of eggs.During the first ten days of June the eggs beeing to batch.The nymph of the locust can last 59 to 66 days then emergenc to adult in the middle of August.Each adult oviposited about 120 eggs.Before the 3rd instar,the pests often gathered in the wasteland and banded to eat dicotyledonous weed.While after the 4th instar they caused big damage to dicotyledonous plants.Experiment showed that ovet 85% control efficiency can ha obtained by the means of integrated control methods.