BIOLOGICAL-CONTROL OF THE CASSAVA HORNWORM ERINNYIS-ELLO (LEPIDOPTERA, SPHINGIDAE)
BIOLOGICAL-CONTROL OF THE CASSAVA HORNWORM ERINNYIS-ELLO (LEPIDOPTERA, SPHINGIDAE)
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DOI：
10.2307/3496132
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发表时间：
1992-12-01
影响因子：
1.4
通讯作者：
GUZMAN, OL
中科院分区：
文献类型：
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作者：
BELLOTTI, AC;ARIAS, B;GUZMAN, OL
几种鳞翅目昆虫攻击木薯;其中木薯角虫，Erinnyis ello（L）（Sphingidae），是新热带地区木薯种植区唯一严重的鳞翅目害虫。严重的攻击会导致植物完全落叶，大量根生产的损失和较低的根质量。角虫攻击可能是零星的，通常是周期性的，通常是不可预测的。农民经常对严重的攻击作出反应，过度，不合时宜地使用杀虫剂，可能导致这种害虫死灰复燃。生物防治提供了一种经济上可行和环境上无害的替代办法。已经确定了大约40种天敌，包括卵和幼虫寄生虫、卵、幼虫和蛹捕食者、真菌、细菌和病毒。由于角虫成虫的迁移行为，这种丰富的天敌并不能阻止角虫的周期性爆发。角虫杆状病毒对控制大肠杆菌非常有效。ello，巴西南部的木薯农民正在使用。
Several Lepidoptera attack cassava; of these the cassava hornworm, Erinnyis ello (L) (Sphingidae), is the only serious lepidopteran pest throughout the cassava-growing regions of the Neotropics. Severe attacks cause complete plant defoliation, losses in bulk root production, and lower root quality. Hornworm attacks may be sporadic, are often cyclic and usually unpredictable. Farmers often react to severe attacks by excessive, ill-timed applications of pesticides that may result in resurgence of this pest. Biological control offers an economically feasible and environmentally sound alternative. Approximately 40 natural enemies have been identified including egg and larval parasites, egg, larval, and pupal predators, fungi, bacteria and a virus. Because of the migratory behavior of hornworm adults, this abundance of natural enemies does not prevent periodic hornworm outbreaks. A hornworm baculovirus is highly effective in control of E. ello, and is being utilized by cassava farmers in southern Brazil.