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金小蜂是防治棉仓中越冬红铃虫的主要天敌。从1964年以来,我们坚持了多年利用金小蜂防治越冬红铃虫。实践证明,大量释放金小蜂,对减轻红铃虫的为害,确保棉花丰收可取得良好的效果。 红铃虫是我县丘陵棉区的主要害虫之一。由于它的为害,给棉花的产量和品质造成了严重的损失。红铃虫又因随着收花而大量带入棉仓内安全越冬,是来年的主要虫源。因此,积极饲养和利用金小蜂防治红铃虫,对压低次年第一代红铃虫为害有着重要的作用。一九七三年冬至一九七四年春我站饲养了二十一万余头金小蜂,重点试放在流
Golden Bee was the main natural enemy of cotton bollworm in winter. Since 1964, we have persisted in using golden bee for years to control overwintering red bollworm. Practice has proved that a large number of gold bee release, to reduce the damage of pink bollworm to ensure good harvest of cotton can achieve good results. Red bollworm is one of the major pests in our county hilly cotton area. Because of its damage, it has caused serious losses to the yield and quality of cotton. Red bollworm and as a result of a large number of flowers and cotton into the safe wintering, is the main source of the coming year. Therefore, the positive breeding and utilization of golden bee against red bollworm has the important effect of reducing the first generation of red bollworm damage in the following year. During the winter solstice in 1973 and in the spring of 1974, I raised more than 210,000 gold buzzards,