1、 Brown rot
Brown rot is a common disease of peach blossom. At the beginning of the disease, the young fruit will appear small black spots, and then the surface will crack, which will also lead to fruit decay. It is usually necessary to cut off the diseased branches in winter, remove the diseased fruits and burn them intensively. Spray Mido sulfur agent during bud expansion period, and spray mancozeb or methyltobuzin every 10-15 days from after flowering to before harvest p>
2、 Anthrax
Anthrax usually occurs frequently in fruit stage. The diseased fruit will appear brownish green spots, and then expand and sag, and appear pink spores. In severe cases, it will also rot and fall off. If you want to prevent and control, you need to avoid planting in low-lying areas. You should pay attention to fertilization at ordinary times to increase the disease resistance of plants. In addition, it can also be sprayed with sodium pentachlorophenol or Bordeaux solution for prevention p>
3、 Aphid
Aphids mainly harm plants from March to April. This pest will concentrate on the back of leaves and suck their juice, resulting in fallen leaves. In winter, the fallen leaves should be removed in time, the injured branches should be cut off, and imidacloprid should be used for control. In addition, biological control can also be carried out by protecting its natural enemies, such as ladybugs p>
4、 Starscream
Starscreams usually appear in April, endangering the tender shoots of plants. The situation is the most serious in June, which is easy to cause a large number of fallen leaves. To control this pest, we need to spray stone sulfur mixture before germination to eliminate overwintering females. After the flower withers, it is necessary to spray the effective acaricide such as nisolone EC. If the situation is serious, it is necessary to use pyridaben and other drugs for treatment p>