What are the control methods for azalea leaf spot disease?
How do you control azalea leaf spot disease? Please explain azalea brown spot disease: in the early stage of the disease, brown spots appear on the leaf margins, the boundary between diseased and healthy tissue is not obvious, showing a transition of light green?brown?rust red; as the disease spreads, the spots enlarge or the entire leaf turns brown, causing the leaves to drop prematurely, and even the whole plant...
How do you control azalea leaf spot disease? Please explain
Azalea brown spot disease: in the early stage of the disease, brown spots appear on the leaf margins, the boundary between diseased and healthy tissue is not obvious, showing a transition of light green?brown?rust red; as the disease spreads, the spots enlarge or the entire leaf turns brown, causing the leaves to drop prematurely, and even the whole plant to die. The disease is most severe between July and August. Control methods: ① Provide appropriate shade during high temperatures, strengthen plant vigor, apply more organic fertilizer, and improve disease resistance. ② Adhere to the principle of prevention first, and spray protective fungicides such as 80% Dacotech wettable powder at 600 to 800 times dilution, or 75% Baijunxiao wettable powder at 600 to 800 times dilution. ③ In the early stage of the disease, spray systemic fungicides such as 12.5% Likejun wettable powder at 2500 times dilution, or 25% Dilituo emulsifiable concentrate at 1500 to 2000 times dilution. ③ Remove diseased plant debris and burn it.
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