Strengthen seedbed management
Ventilate the seedlings in a timely manner to prevent freezing damage and improve seedling quality. Observe the observation and find that the diseased seedlings are controlled in time.
Control methods
1. In the early stage of disease, spray 15% 500ml solution of Hymex Aqueous Solution on the bed, and use 2~3kg per square meter.
2, with 35% of the dry and wet powder 800 times liquid spray, spraying 30 kg per mu.
3, with 3% Kwong Ling Shui agent 20 grams + rice strong Zhuang Huang grams 30 grams + rice rooting agent 20 grams spray 50 to 60 square meters seedbed.
Precautions
1, the above-mentioned agents can not be mixed with alkaline agents, otherwise it is easy to fail.
2. Long-term application or low temperature application of the enemy's cough pine to prevent and cure “wild blightâ€, and it is easy to see the phenomenon of seedlings “small old seedlingsâ€, and it is not appropriate to use and control enemy cough pine.
3, do not water within two days after application, so as to avoid the loss of drugs.
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