农抗“769”是一种杀菌力强的抗菌素,防治谷子黑穗病效果好,价格低,对作物种子无药害,对人畜无残毒,是一种深受群众欢迎的生物农药。近年来,我县谷子播种面积不断扩大,其中主栽品种“昭谷一号”比较易染黑穗病,常年在8—11%,最高发病地块达到34%。为了解决这个问题,自一九七九开始引用生物农药农抗“769”以后,当年示范面积四 Agronomy “769” is a kind of bactericidal antibiotic. Its prevention and cure of millet smut has good effect and low price. It has no harm to crop seeds and no residue to humans and animals. It is a popular biological pesticide. In recent years, my county millet sown area continues to grow, of which the main variety “Zhaogu” more susceptible to smut, perennial in 8-11%, the highest incidence of land reached 34%. In order to solve this problem, since the introduction of bio-pesticide agro-anti-769 in 1979, the demonstration area of ​​the year