天门、公安等县群众性的生物防治科学实验活动,在各级党委的积极领导下,不断地取得进展。他们发现了防治农作物病虫害的新的菌种和天敌,在实际应用中收到了显著成效。天门,公安等县群从性的生物防治科学实验活动生物防治开新花@文相堂 Tianmen, public security counties and other mass biological control scientific experiment activities, under the active leadership of party committees at all levels, continue to make progress. They found new strains and natural enemies to combat pests and diseases in crops and received significant results in practical applications. Tianmen, public security and other county groups from the biological control of biological activity of scientific experiments in biological control to open a new flower @ Wen Tong