1, viral diseases: all parts of the province have occurred, the degree of occurrence is moderate (the degree of individual varieties is biased). The main crops are (1) various kinds of peppers, among which the pickled peppers and the western bell peppers are more serious, and the peppers are lighter; (2) watermelons, melons, bitter gourds, cucumbers and pumpkins, etc. Among them, watermelon and bitter gourd are more serious; (3) small tomato, the degree of occurrence is lighter; (4) beans, mainly bean, the degree of occurrence is light.
The disease is expected to continue to increase in our province, especially the performance of various peppers. At present, the main prevention and control work is: (1) timely removal of diseased plants and reduction of pathogens; (2) strengthening of fertilizer and water management, spraying of foliar fertilizer or plant growth regulators (such as "0.003% loves beauty" water in time after the weather turns fine. 3000 times, "Side Cop" granules 6000-8000 times and some amino acid foliar fertilizer). (3) Spray antiviral agents (such as "2% No." water agent 600 times), spray 2-3 times continuously, every 4-5 days; (4) pay attention to the prevention and control of mites and thrips.
2, bacterial leaf spot: mainly occurred in the eastern and northern parts of the province, the degree of occurrence is biased, the main crops are pickled pepper, western bell pepper, pepper, watermelon and greenhouse cantaloupe, etc., other varieties have sporadic occurrence.
The disease is expected to continue to be biased in the next stage, and the development speed is relatively fast, and the prevention and treatment is difficult. Therefore, prevention and control work must be carried out in time. (1) timely removal of diseased plants and diseased leaves; (2) chemical control: foliar application of "3% Zhongsheng antibiotic" powder 800-100 times or "agricultural streptomycin" powder 3000 times, continuous spraying 2 -3 times, once every 4 days. After the weather turns fine, the melon crops can be sprayed with “77% Dorin†powder 500 times foliar spray (useful for rainy days and pepper crops).
3, bacterial angular spot: the degree of occurrence is moderate, mainly to kill cucumber, watermelon and cantaloupe melon. Some of the greenhouses have a heavier degree of cantaloupe, and it is expected that the disease will continue to expand and spread. The prevention work refers to bacterial leaf spot.
4, bacterial wilt: moderate occurrence, field water or nitrogen fertilizer field is biased. The main crops are various kinds of peppers, small tomatoes and eggplants. It is expected that the disease will be biased.
Prevention and control work: (1) quickly drain the field water; (2) remove the diseased plant and sprinkle lime in the diseased plant; (3) use the "77% tonine" powder 500 times or sulfuric acid after draining the field water Copper is 300 times rooted.
5. Epidemics (downy mildew). It occurs in all parts of the province, with moderate occurrence, and the degree of occurrence of peppers and melons grown in paddy fields is biased. After the weather turned fine, the extent of the disease (downy mildew) of the melons grown on the slopes decreased, but the extent of the poorly drained fields still increased.
Prevention and control work: (1) Pay attention to draining water or digging deep trenches to reduce the water level in the field; (2) Chemical control: “50% Anke†dry suspension 2000 times + “72% Yinsheng†suspension agent 1200 times or “ 50% Nair" powder 800 times + Marga 800 times foliar spray 2-3 times, once every 5 days.
6. Fusarium wilt: occurs in all parts of the province, and the degree of occurrence is biased, especially in areas where soil viscosity is too large or root-knot nematode is serious. The main crops are: watermelon, bitter gourd, cucumber, melon and so on. It is expected that the disease will continue to spread in the next stage.
Prevention and control work: (1) reduce the water in the field; (2) use the "20% good é“" powder 2000 times or "50% ç¦ç¾ŽåŒ" powder 300 times after the weather turns fine, and irrigate 2 times every 5 days.
7. Powdery mildew: The degree of occurrence is moderately light, but the bitter gourd in the Wanning area is biased. It is expected that the disease will be more serious on the bitter gourd, melon and cucumber after the weather turns fine.
Prevention and treatment work: (1) Spray the protective fungicide early after the weather turns fine: such as "50% Nile" powder 800 times + "50% methyl thiophanate" suspension 600 times or "72 Yin" suspension 1200 times +80% of the students 500 times, continuous spraying 2-3 times, once every 5 days. (2) Selectively spray a therapeutic agent such as "12% myclobutanil" EC at 2000-3000 times.
8. Other diseases such as anthracnose and blight are mild, and the degree of occurrence in the next stage is subject to field monitoring.
9. Pests: In the current rainy weather, all kinds of pests occur to a lesser extent, but after the temperature rises, thrips, aphids and cotton bollworms are rapidly exploding. Control agents should choose biopesticide or high-efficiency, low-level biochemical insecticides such as emamectin, avermectin, spinosyn, imidacloprid and acetamiprid.
Note: When applying the medicine on a rainy day, a small amount of spreading agent, such as “soft water passâ€, should be added to the medicine box to improve the efficacy.
Surface Mounted Emergency Spotlight
Surface Mounted Emergency Spotlight,Ip65 Led Street Light,Suface Mounted Spotlight,Surface Mounted Spotlights
Effort Semiconductor Lighting Ltd. , https://www.effortem.com