During the peak of summer, when temperatures soar, fruits and vegetables in the field are more prone to viral diseases caused by intense heat. This is especially true in July and August, when high temperatures create favorable conditions for the spread of plant viruses. Therefore, it's crucial to be vigilant about virus-related diseases and implement effective prevention strategies. Here are some practical measures that can help protect your crops.
First, increasing the application of phosphorus and potassium fertilizers can significantly improve the overall health and resilience of plants. These nutrients play a vital role in strengthening the plant’s immune system and promoting better growth under stressful conditions.
Second, for crops like peppers, consider planting 2 to 3 seedlings per hole to increase density. This not only helps in shading the soil but also reduces direct exposure to sunlight, which can lower the risk of heat stress and virus transmission. Additionally, you can intercrop shade-tolerant plants between rows or use shade nets to further reduce temperature stress on the crops.
Third, if you notice signs of viral infection in your field, it's important to manage the area carefully. Start by handling the healthy plants first, then move on to those that are infected. For severely affected plants, remove them immediately and take them far away from the field for deep burial. This prevents the virus from spreading to other healthy plants.
Fourth, for crops that have not yet shown symptoms, you can apply a mixture of 83 Anti-agent diluted at 100–150 times and Zhijianbao II diluted at 1000 times. This combination offers strong protection against pests and viruses. If the crops are already infected, mix 400 times of Leaflet with 1000 times of Zhijianbao II for effective treatment.
By following these steps, you can significantly reduce the impact of viral diseases on your crops during the hot season. Staying proactive and using the right techniques will go a long way in maintaining a healthy and productive garden or farm.
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