今年,我省大部分果产区雨水偏多,苹果水锈(垢斑病)普遍发生较重,果实表面有一层不规则的煤状物,其病源为一种真菌。果实产生水锈后,一般不影响贮藏和食用。清除水锈的方法:取漂白粉1份(25克)、小苏达4份(100克)、水50份(1,250克),配成溶液,将果 This year, most of the fruit producing areas in our province have a lot of rain, and apple rust (leaf blotch disease) is generally heavier. There is an irregular layer of coal on the surface of the fruit. Its source is a kind of fungus. After the fruit produces rust, it generally does not affect the storage and consumption. Method of removing water rust: Take 1 part (25 g) of bleaching powder, 4 parts (100 g) of small Suda and 50 parts (1, 250 g) of water to form a solution,