Potatoes are also commonly known as potatoes, artichokes, and eggs. It is the fourth most important food crop in the world. During the planting process, some pests and diseases will not be avoided. The following will briefly explain the prevention and control methods of common potato pests and diseases.
Growth conditions:
1, the potato is like cold, it is a crop that likes low temperature. The formation and growth of underground potato blocks requires a loose, breathable, cool and moist soil environment.
2, the temperature requirements of the potato: the appropriate temperature for tuber growth is 16 ° C ~ 18 ° C, the local temperature is higher than 25 ° C, the tuber stops growing; the appropriate temperature for stem and leaf growth is 15 ° C ~ 25 ° C, more than 39 ° C stop growing .
Common pests and diseases:
1, ring rot: ring rot is mostly caused by seed potato poisoning, so it may occur in the cultivation process of the whole autumn potato. Ring rot has a great damage to the growth of autumn potato, such as a large area of ​​disease can lead to reduced production or no harvest. Therefore, it is necessary to cut the ring rot from the source, select the disease-free seed potato, and pay attention to disinfecting the knife when cutting, so as to avoid cross infection.
2. Viral disease: Viral disease is an infectious virus. The diseased autumn potato is mainly characterized by short stature, slow growth, curled leaves and dark colors. The prevention and treatment of viral diseases mainly starts from the following three aspects: 1 selection of anti-viral potato varieties, using whole potatoes or raw potatoes as seed potatoes; 2 controlling aphids. Aphids can spread the virus in the potato, and can be sprayed with 5% acetamiprid; 3 can be sprayed with morpholinium hydrochloride and 3% amino oligosaccharide in the early stage of the disease.
3. Ladybugs: Ladybugs are more harmful to potatoes. They often feed on mesophyll and fruits, and the leaves of the affected potato will dry and brown. The fruit is often ruptured, rough and bitter, and inedible. Insecticide can be carried out by using 5.2% Avi. high chloride, 10% lambda cyhalothrin or the like.
4, 蛴螬: 蛴螬 is a kind of underground pests, sucking freshly seeded seeds and seedlings, endangering the growth of potatoes.é¿å… Avoid applying unfertilized fertilizer, using black light to trap and so on. The medicament can be irrigated with avermectin and phoxim. Sugar + vinegar can also be used to trap.
These are some of the common pests and diseases of potatoes and their prevention and control methods. I hope that they can help everyone. We also welcome the vast number of agricultural friends to put forward more valuable opinions in the comment area.
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