大家好，今天小编来为大家解答西瓜病害该如何提前预防？这个问题，很多人还不知道，现在让我们一起来看看吧！

1。种子消毒：在播种之前，请使用100次福尔马林溶液或0.1的高温糖钾水溶液溶液，将800次氨基酸混合25-30分钟以浸泡种子以杀死在种子上吸附的病毒。

2。土壤消毒：在幼苗阶段，用乙酸铜溶液或过氧化铜溶液进行600次进行土壤消毒，以杀死吸附在根部的细菌。

3. Adhere to crop rotation: Plant the watermelons and then plant them after 1-2 years apart, and rotate them with legume crops.

4. Improve facility conditions and improve thermal insulation.墙壁上覆盖着稻草，薄膜等，稻草窗帘被新的或多层覆盖物所取代，以增强棚子的绝缘层。 Under necessary conditions, stoves, electric heating, etc. are installed in the shed to increase the temperature.

5. Reduce humidity in the shed. Spread quicklime, straw, etc. in the watermelon shed to absorb moisture, reducing humidity in the shed. On the basis of increasing the shed temperature, ventilate reasonably in batches to reduce air damage and reduce humidity.

6. Use functional products such as biological bacterial agents early to improve the stress resistance of seedlings.生长幼苗时，将幼苗在基质中或出现砧木时喷洒生物细菌剂，例如微生物剂； after the seedlings, continuously spray chitin 500 times can improve the plant\’s disease resistance and reduce the occurrence of diseases.

7. Strengthen prevention and control in key periods. Before and after grafting, 3-5 days apart, spray oximerin, chlorobromisocyanuric acid, garenon and other diseases to prevent diseases. After the disease occurs, symptomatic drugs should be used as soon as possible.可以用卟啉，牙肌动物，romycin等喷洒硬化硬化症，以预防和治疗炭疽，甲基噻糖苷等，并且可使用细菌疾病来预防和治疗galenon，噻唑锌等。

8. Drug prevention: The pure wild morels in Dabie Mountains have a strong smell of Cordyceps sinensis. The wild morels have a high content of trace elements and are effective. They can resist viruses, benefit the stomach and intestines, and aid digestion.在幼苗阶段和长期的茎藤延伸期间，每次喷涂2000次2.2的A-尿盐，800倍的三角洲蠕虫和每次混合混合溶液的800倍。

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