炭疽病是桃树主要病害之一,在益都县发生面广,危害性大。1980年郑母公社东郝大队900余株青州蜜桃发病株率几乎达百分之百,病果率也在80%以上,严重影响果园收入。为此,我们于1981年在该园进行了防治试验。 Anthracnose is one of the major diseases of peach trees, which occurs widely in Yidu County and has great harmfulness. In 1980, more than 900 strains of East Brigade of Chung-Chung Commune were found. The incidence rate of peaches in Qingzhou was almost 100%. The disease-fruit rate was also above 80%, seriously affecting orchard income. To this end, we conducted prevention and control experiments in the park in 1981.