What are the methods for preventing and treating pumpkin fruit abortion?
What methods can prevent and treat pumpkin fruit abortion? Please advise. The phenomenon in which a pumpkin dies after growing to about the size of a fist is called fruit abortion. The main causes of pumpkin fruit abortion are: (1) Recently excessively high temperatures are unfavorable for pumpkin fruit set and fruit enlargement, causing fruit abortion. (2) Too much fertilizer and water, especially after pumpkin harvest, and when pruning cannot keep up, often causes the pumpkin vines to grow excessively, leading to spindly overgrowth of the plants, which easily causes fruit abortion.
What methods can prevent and treat pumpkin fruit abortion? Please advise.
The phenomenon in which a pumpkin dies after growing to about the size of a fist is called fruit abortion. The main causes of pumpkin fruit abortion are:
(1) Recently excessively high temperatures are unfavorable for pumpkin fruit set and fruit enlargement, causing fruit abortion.
(2) Too much fertilizer and water, especially after pumpkin harvest, and when pruning cannot keep up, often causes the pumpkin vines to grow excessively, leading to spindly overgrowth of the plants, which easily causes fruit abortion.
(3) Damage to the plants by diseases and pests can also cause pumpkin fruit abortion.
To prevent pumpkin fruit abortion, the following measures can be taken:
First, do a good job of resisting high temperatures and drought. Second, according to the growth condition of the pumpkins, take corresponding cultivation and management measures. For plants that are growing excessively and are spindly and overgrown, appropriately control fertilizer and water, strengthen management measures such as pollination and pruning, remove excess side vines, promote fruit set on the female flowers of the main vine, and control spindly overgrowth; for plants with weaker growth, strengthen fertilizer and water management to promote fruit enlargement. For plants damaged by diseases and pests, apply the right remedy for the symptoms. For aphids, spray with pesticides such as imidacloprid, Kangfuduo, and insecticidal agents; at the same time, prevent and control the viral diseases spread by aphids; for powdery mildew, use pesticides such as Fuxing, triadimefon, and Score for control; diseased plants with blight should be pulled out promptly and disinfected with lime, then all plants should be drenched at the roots with pesticides such as Guakuning for prevention.
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