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西葫芦主要病害有病毒病、霜霉病、灰霉病、白粉病、菌核病等。在防治上,除严格控制温、湿度,合理浇水追肥,提高植株抗性能力外,还要掌握各种病害的症状,及时采用药剂防治。(1)病毒病定植后喷施800～1000倍40%氧化乐果乳油,或喷20%速灭杀丁乳油2000倍液防治蚜虫,尤其要注意消灭越冬菠菜、芹菜上的蚜虫,以减少病毒侵染来源。
Zucchini main diseases are virus disease, downy mildew, gray mold disease, powdery mildew, Sclerotinia and so on. In the prevention and control, in addition to strict control of temperature and humidity, watering top-dressing rationally, improve plant resistance, but also to grasp the symptoms of various diseases, the timely use of pharmaceutical control. (1) After the virus disease is sprayed 800 ~ 1000 times 40% omethoate, or spray 20% speed kill buthyll oil 2000 times control aphids, in particular, should pay attention to the elimination of wintering spinach, celery on aphids, in order to reduce the virus Source of infection.