Tomato blight is more harmful to tomato. When it is serious, it can affect the yield of tomato. Today, I will share with you how to prevent and cure tomato blight.
How to prevent and cure tomato blight:
1. Seed treatment. Seed dressing with new high-fat film can keep warm, moisturize and swell, improve seed germination rate and make seedlings strong. Repel underground pests and isolate viral infections.
2. Strengthen seedbed management. Pay attention to improve the ground temperature, scientifically release the wind, and prevent the high temperature and high humidity of the seedbed or nursery tray. Spraying a new high-fat film at the right time can effectively prevent evaporation of water on the ground, transpiration of the seedlings, isolation of pests and diseases, and shortening of the slow seedling period.
3. Strengthen field management. In the process of tomato growth, timely weeding and weeding, balance water and fertilizer, topdressing should control the application of nitrogen fertilizer, increase the application of phosphorus and potassium fertilizer. Timely ventilation and light transmission is conducive to tomato growth. Spraying 0.1-0.2% potassium dihydrogen phosphate and photosynthetic nutrient fertilizer at the seedling stage can enhance plant resistance. And timely reduce the humidity in the field, the leaf surface spray to promote Huawang 3, inhibit the main shoots, promote flower bud differentiation, and improve the disease resistance of the plants. Spraying the fruit and vegetables at the flowering stage, the young fruit stage and the fruit expansion period can improve the pollination quality, enhance the cycle fruit setting rate, improve the quality of the tomato, and produce high quality and stable yield. In the early stage of the disease, the targeted agent can be sprayed together with the new high-fat film in a timely manner for 2 consecutive treatments.
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