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黄瓜黑星病的防治几年来，我地区黄瓜黑星病发病率极高，多发性与灰霉病等同，直接影响了黄瓜产量及品质。黄瓜黑星病整个生育期均可发病，幼苗期子叶上产生黄白色圆形斑点，逐渐腐烂，一般３－５叶期症状趋于明显。有的生长，点停滞生长，有的生长点腐烂坏死，出现秃尖现...
Cucumber scab control in recent years, my area cucumber scab incidence is extremely high, multiple and gray mold directly affect the cucumber yield and quality. Cucumber black star disease can develop throughout the growth stage, seedling leaves produce yellowish white round spots, gradually decay, the general symptoms of 3-5 leaves tend to be obvious. Some growth, stagnation growth point, some growth necrosis rotten, bald appear now ...