After the beginning of autumn, there is a high incidence of crop diseases and pests, and corn, rice, beans, and vegetables will be affected by pests and diseases to varying degrees. How to prevent pests and diseases "After the fall", according to different crops right medicine!
corn
Maize pollination started after August, and the main diseases and pests in the middle and later corn were corn top rot, brown spot, stem rot, corn borer (boring insect), cotton bollworm, armyworm, and corn borer.
Due to the large planting density of summer corn and the high plant in the middle and later stages, plant protection drones can be fully utilized to carry out the “one-spray and multi-effect†fly-proof operation of pests and diseases to achieve the effects of disease prevention, pest management, stress resistance, and yield increase. Corn "multi-effect" should pay attention to the application of "prevention technology" promotion, prevention and control time selection after August 15 (maize grant
After powder).
“One spray and multi-effect†insecticide recommended: 5% A-dimensional saline dispersible granules, 25 g/L Lambda-cyhalothrin EC, 5% imidacloprid EC, 70% Imidacloprid WP, ​​5% acetamiprid EC , 5% chlormethenone benzamide suspension agent. Fungicides recommended: 80% tebuconazole wettable powder, 10% difenoconazole EC, 70% thiophanate-methyl wettable powder, 25% azoxystrobin suspension. Foliar fertilizer recommended: urea, nitrogenous foliar fertilizer, 5% amino oligosaccharides.
Rice
In August, rice gradually entered the stage of heading, flowering, grain filling and maturation. Three (2) larvae, rice planthoppers, rice pods, rice neck ridge, sheath blight, and rice smuts were common. If we do not do a good job of pest control and disease prevention, we will increase rice white panicles, yellowish litters, and indica, which will have a great impact on yield.
Adhere to the principle of comprehensive prevention and control based on agricultural control, agricultural control and chemical prevention. The water layer in the paddy field must be shallow, and the fields should be properly aired to control the humidity in the field and create a field environment conducive to rice growth and unfavorable to the development of germs. Promote the use of high-level single-dose pesticides and avoid the use of low-level compounding agents. Pay attention to the timely investigation during late filling, late maturation, and greed green rice paddy grouting and timely prevention and treatment. Control should be selected for the pests and diseases corresponding to the pharmaceutical, such as insecticidal available dipterex, dichlorvos, insecticide and other agents, disease prevention can use rice bran, tricyclazole, rice disease? ┮┰㗠? ? 档 缫┖笙 缫┖笙 缫┖笙 故 故 故 故 故 故 故
Chemical prevention should pay attention to four aspects: First, the field is very heavy, dense, and the plants are dark green in color. The second is to spray at least 15 kg of water per acre. Third, it is best to spray on cloudy days or afternoons. Fourth, the disease-preventing agent is mixed with potassium dihydrogen phosphate or foliar fertilizer to increase the control effect.
Beans
The typical symptom of legume rust is yellow-brown or dark-brown uplift of the leaves. It is an airborne disease that spreads quickly and is very hazardous. Once the conditions are right, it will soon become widespread. The use of 15% triadimefon wettable powder 1000 ~ 1200 times, or 50% Versalling EC 800 ~ 1000 times, or 25% of the enemy demulsifiable oil 3000 times spray control.
vegetables
Early blight is the main disease of tomatoes, peppers, eggplants and other vegetables. The leaf is the most affected. The typical symptom is that the leaf lesions are round or nearly round, the edges are brown, the center is light gray, the lesions have concentric ring patterns, and the humidity is high. Black mold. 70% Mancozeb WP can be used 600 times, or 75% chlorothalonil WP 600 times, or 50% acetaminophen WP 1000 times.
The yellow fleas are mainly responsible for cruciferous vegetables such as cabbage, cabbage, and radish, as well as fruits, melons, beans, and other vegetables. Adult worms feed the leaves, causing fine holes, and the larvae eat underground portions. Vegetable roots become benthic insects. It can be sprayed with 20% of good year's winter 1000-1500 times liquid, or 1.8% alfudine 2000 times liquid, 80% or 90% solid trichlorfon 1000-1200 times liquid.
Zhuhai Mingke Electronics Technology Co., Ltd , https://www.zhmkdz-electronics.com