黄瓜药害的识别与防治黄瓜药害，指不适当施用农药后，使黄瓜正常生理功能或生长发育受阻，外观表现一系列异常征象。黄瓜药害有急性、慢性两种。急性是喷药后几小时至３～４天出现明显症状，发展迅速。如烧伤、凋萎、落叶、落花、落果。慢性药害是在喷药启，经较长时间才... Cucumber injury identification and prevention Cucumber injury, refers to improper application of pesticides, cucumber normal physiological function or growth and development blocked, the appearance of a series of abnormal signs. Cucumber injury has acute and chronic two. Acute is a few hours after spraying to 3 to 4 days obvious symptoms, the rapid development. Such as burns, wilting, deciduous, falling flowers, falling fruit. Chronic injury is spray in the open, after a long time before ...