Incidence: The germs develop at a temperature of 19-20 degrees Celsius, with more rainfall, more moisture in the soil, more susceptible wounds in the roots, prolonged drought and high temperatures, and diseases with temperatures exceeding 28 degrees. Premature colonization, planting seedlings too deep, injuring many roots, not applying fertilizer in time, and weak plant growth are all conducive to the occurrence of diseases.
Control methods: 1. Select resistant varieties. 2, at the beginning of the disease with [yellow disease] 600-800 times liquid spray, rooting, or [rot disease must] 600-800 times liquid spray, rooting, interval 10 days irrigation once, even irrigation 2-3 times. Or 50% carbendazim or 50% thiophanate WP spray, root irrigation, [defects rot], [bamboo outbreak] were produced by Hebei Province, Shijiazhuang Hongwei Agricultural Science and Technology Development Co., Ltd. 0311-87753859. Cell phone
3, strengthen the cultivation and management. Deeply turn the soil, apply more organic fertilizer and phosphorus and potassium fertilizers. Pay attention to drainage in the rainy season to prevent the humidity in the field from being too large. Find out that the diseased plants are immediately removed and buried deeply or burned.
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