Warm winter is easy to induce tomato gray mold. The following control methods can be used:
Agricultural prevention and control Appropriate application of phosphorus and potassium fertilizers to improve plant disease resistance. Promote drip irrigation and under-membrane irrigation techniques to prevent flooding. At the beginning of the disease, the remaining petal and stigma should be removed in a timely manner to remove diseased leaves and diseased fruits and to remove diseased plants to prevent the spread of disease.
Ecological control aims to increase temperature and eliminate humidity and strengthen ventilation management. The specific approach is to close the shed to warm up in the sunny morning, when the temperature reaches 28 °C ~ 30 °C for 1 hour after the beginning of the top wind, continue to ventilate at noon, the temperature maintained at 20 °C ~ 25 °C. When the temperature reaches 18°C ​​to 20°C in the afternoon, the ventilation openings are closed. The night temperature is maintained at 14°C to 16°C and the relative humidity is maintained at 70% to 80%.
Prior to planting and controlling the pesticides, the seedlings were sprayed with 50% Suo Ke Ling WP 1500 or 50% Carbendazim Wettable 500 times to prevent colonization. In the early stage of disease, 50% fast-inking WP 2000-3000 times, 45% Tektronix suspension 3000-4000 times, spray once every 7-10 days, spray 3 to 4 times. Botrytis cinerea is easy to produce drug resistance, and the amount of drug and application times should be reduced as far as possible, and attention should be paid to rotation and alternation of medication.
This 50m distance measuring meter is made of two parts: the laser distance outside unit and the sole part laser measure module. Great distance range is from 3cm to 50 meters with ±1.5mm high accuracy. Digital distance measuring device is quick and reliable measure with one hand pushing the button. It is designed for hand helding, very convenient to put in your jacket pocket or trouser pocket.
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