Is there any way to prevent and cure pumpkin?

Is there any way to prevent and cure pumpkin? Please advise the phenomenon that pumpkins die when they grow to the size of their fists, which is called Hua Gua. The main reasons for pumpkin are: (1) the recent high temperature is not conducive to pumpkin fruit setting and fruit expansion, causing pumpkin. (2) too much fertilizer and water, especially after pumpkin harvest, the pruning can not keep up with it, which will often cause pumpkin vines to grow too vigorously and plants to grow excessively, which can easily lead to melons. (3) Diseases and pests can also cause pumpkins to turn into melons. To prevent pumpkins from turning into melons, the following measures can be taken: first of all, we should do a good job in resisting high temperature and drought. Secondly, according to the growth situation of pumpkin, corresponding cultivation and management measures should be taken. For example, for overgrowing plants, it is necessary to properly control fertilizer and water, strengthen pollination, pruning and other management measures, erase too many lateral vines, promote female flowers on the main vines to set fruit, and control overgrowth; for weaker plants, it is necessary to strengthen fertilizer and water management to promote fruit expansion. For plants harmed by diseases and insect pests, it is necessary to prescribe the right medicine for aphids. Aphids can be sprayed with imidacloprid, rehabilitation, insecticides, and at the same time, virus diseases transmitted by aphids should be well controlled. Powdery mildew can be controlled with Fuxing, Fenruining, Shigao, etc.; disinfected plants with blight should be pulled out in time and disinfected with lime, and then all plants should be irrigated with Guakuning and other chemicals to prevent them. Click to get more pumpkin planting techniques click to get more vegetable planting techniques