Squash, also known as Cucurbita pepo, Fanpu, Cucurbita melo, etc., is an annual herbaceous melon and belongs to Cucurbitaceae. The stems are creeping, pentagonal, without rigid spines, and the leaves are pentagonal and heart-shaped.
Corolla lobes are large, yellow, and divided into males and females. The fruit is oblong, oblate and so on. The fruit surface is smooth or has a tumor, and there is white powder when it is ripe. The fruit is mature in late summer and early autumn, showing various colors such as red, yellow, brown, red and yellow. Originated in South Asia, South China, Central America, etc., square melon is widely cultivated in five continents. Square melon is one of the excellent fruits to relieve summer heat in China.
Prevention and control of diseases and insect pests in square melon;
Because cucurbits are mainly produced in winter, there are relatively few diseases, and there are mainly the following two kinds: one is gray mold. To prevent and control this kind of disease, it is necessary to control the temperature and humidity, which can be effectively improved by ventilation and reducing humidity.
The drug used is generally gray wolf smoke agent; The other is powdery mildew. After the temperature rises, the probability of powdery mildew is generally the highest in April, which can be effectively prevented by windbreak in the morning and evening, or sprayed with Yihui. The pesticide can be sprayed with polyoxin 1500 times solution, which can ensure the vigorous growth of melon seedlings and continuously improve the yield.