生态调控对东亚飞蝗的控制作用研究

Study on the effects of ecological control on Locusta migratoria manilensis

东亚飞蝗的成活率,在野生植物中以取食荻和稗者最高,在栽培作物中以取食小麦、玉米最高。生殖力,在野生植物中以取食食狗芽牙根最强,在栽培作物中以取食高粱最强。据此,应用以植被改造为主的生态调控技术,可以形成不利东亚飞蝗的发生、繁衍,而有利天敌繁衍和觅食的生态环境,从而抑制东亚飞蝗的发生。生态控制区在战略上还对飞蝗的迁移起到了隔离作用,但种植棉花、苜蓿、冬枣等不同作物的生态控制区的控蝗效果有一定差异。

Survival rates of Locusta migratoria manilensis feeding on reed and Echinochloa crusgalli were the highest when they ate wild plants; but were the highest on wheat and corn when they ate cultivated plants; Fecundities of Locusta migratoria manilensis feeding on dog grass were the highest when they ate wild plants; but were the highest on sorghum when they ate cultivated plants; Based on this facts, ecological control technique which consisting of mostly vegetation reconstruction, could form an environment favorable to the living and propagation of natural enemies, not to Locusta migratory manilensis. From the perspective of strategy, ecological control might play a role of inhibiting function to the migration of Locusta misratoria manilensis, but the effects of different vegetations, such as cotton, alfalfa, winter jujube, were different.