Identification of Tomato Blight Symptoms: Freshly emerged seedlings and large seedlings can be diseased, the stems of diseased seedlings turn brown, and the diseased part of the diseased seedlings is finely shrunk; the stems and leaves are wilting and dead; the large seedlings are wilting during the day and recover at night, when the lesions circle around the stems for a week At that time, the seedlings gradually withered, but they did not show collapse. The diseased primordial oval dark brown spot with a concentric ring pattern and pale brown spider silk mold.
Control methods: 1. Strengthen the seedbed management, pay attention to increase the ground temperature, scientific ventilation, and prevent the emergence of high temperature and humidity conditions on the seedbed or seedling plate. 2. Disinfect bed soil at the seedling stage, cover the soil with carbendazim to cover the soil. 3. In the early stage of onset, spray 20% methyl-rhodium phosphorus (Licoc) 1200-fold solution, or 70% thiophanate-methyl powder 600-fold solution, or 95% hymexazol 4000-fold solution; damping-off, damping-off When mixing, use 50% of omeprazole WP 1800 times plus 72% of Propioside (Pric) 600 times liquid spray, spray 7 to 10 days, continuous spray 2 or 3 times.
One Button Fast Measuring Instrument Horizontal Type
One-button flash tester (horizontal) :
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