Prevention and control methods for pepper seedling death caused by high summer temperatures
How to prevent and control pepper seedling death in high summer temperatures? Please explain the methods. In summer, the hot and rainy climate conditions easily trigger the occurrence of various pepper diseases. When heavy rain is followed by sudden clearing and a sharp rise in temperature, disease epidemics are easily caused, and plants can die within 3 to 5 days, known as "dead plants." This disease is a devastating disease of peppers...
How to prevent and control pepper seedling death in high summer temperatures? Please explain the methods
In summer, the hot and rainy climate conditions easily trigger the occurrence of various pepper diseases. When heavy rain is followed by sudden clearing and a sharp rise in temperature, disease epidemics are easily caused, and plants can die within 3 to 5 days, known as "dead plants." This disease is a devastating disease of peppers, so actively preventing its occurrence is very important.
1. Strengthen field management
After the seedling hardening stage, plants enter the vigorous growth period of branches, leaves and fruits. The four fertilizer and water applications for promoting seedlings, boosting fruit, restoring seedlings and preventing decline are indispensable. In the hot rainy season, when the temperature is above 32°C, special attention should be paid to promptly draining accumulated water after heavy rain to prevent dead seedlings. After hot rain, use well water to "irrigate the garden during waterlogging" to lower soil temperature. High summer temperatures can also cause the occurrence and spread of viral diseases, leading to leaf drop, flower drop and fruit drop. Therefore, in the hot season, during rainless periods, water once every 5-6 days to keep the soil moist, but strictly prevent excessive humidity. Appropriately spray 6000-fold Aiduoshou solution or 7000-fold Zhibaosu solution to improve plant disease resistance.
2. Chemical control
After finding the central diseased plants in the field, seize the opportunity and use both spraying and drenching. You can choose 72.2% Previcur AS 600-800-fold solution, 72% DuPont Curzate or cymoxanil mancozeb wettable powder 600-800-fold solution. In addition, before watering in the hot rainy summer season, broadcast 3 kg of 96% copper sulfate per mu, then water, and the control effect is obvious.
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