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在毛主席革命路线指引下,无产阶级文化大革命以来,生物防治农林害虫的群众性科学实验活动蓬勃发展,应用白僵菌防治松毛虫,已在南方各省大量推广使用。据统计,一九七四年南方十三省(区)应用白僵菌防治松毛虫面积达337万亩,占该年总防治面积的35.4%,是目前生物防治林业害虫的一个重要部分。我省自一九七二年以来,进行试验和推广,实践证明:只要保证菌粉质量,掌握有利的气候条件,杀虫效果一般可达80%以上,是防治松毛虫行之有效的办法。
Under the guidance of Chairman Mao’s revolutionary line and since the Great Proletarian Cultural Revolution, mass scientific experiments on biological control of agricultural and forestry pests have been booming. The application of Beauveria bassiana to control pine caterpillars has been widely promoted in the southern provinces. According to statistics, in 1974, Beauveria bassiana was applied to prevent and control pine caterpillars in an area of 33.4 hectares (accounting for 35.4% of the total control area of the year) in the thirteen provinces (regions) in the south of China. It is now an important part of biological control of forestry pests. Experiments and promotion have been carried out in our province since 1972. Practice has proved that as long as the quality of the bacterial powder is ensured and the favorable climatic conditions are mastered, the insecticidal effect can generally reach over 80%, which is an effective way to control pine caterpillars.