The Biological Control of Cassava Mealybug in Africa
介绍非洲木薯粉蚧的入侵历史及国际热带农业研究所通过引入南美寄生蜂成功控制该害虫的案例，效益成本比达149比1，说明生物防治在害虫管理中的重要作用。
Abstract Cassava, brought from South America 300 years ago free of its pests, became a major subsistence crop in Africa. A mealybug was mistakenly introduced in the early 1970s. By the 1980s the mealybug was a major pest. The International Institute of Tropical Agriculture found a parasitic wasp in South America and reared and released it in Africa. Conservatively estimated, the benefit‐cost ratio for this program is 149 to 1. This success indicates that biological control can play an important role in pest management.