Strawberry powdery mildew is a major disease during strawberry growth. It can occur during the whole growing season of strawberries. Under suitable conditions, it can develop rapidly, spread into disasters and cause serious losses. Generally, it reduces production by 30% to 40%, and serious by 50%. Above, even no income. What are the control agents for strawberry powdery mildew? What is the best effect?
Strawberry powdery mildew prevention and treatment time
1. Actively prevent 2 times with protective fungicides before flowering. Available 80% mancozeb WP 800 times, 75% chlorothalonil WP 600 times spray protection!
2. After the onset of disease, use an agent with protection and treatment. The spraying of the main spraying leaves the back, each time interval 7 days, continuous spray 3 times. Frequent use should pay attention to the alternate use of agents to avoid resistance.
What are the preventive medicines for strawberry powdery mildew
12.5% ​​Myclobutanil EC 480mL/hm2
40% DuPont Fuxing (flusilazole) EC 135g/hm2
25% aryl pyrimidine suspension 410mL/hm2
42.4% Floxaconazole Pyrazoxime (Kinda) Suspension 1000-1500 times
42.8% Trifloxystrobin (Lunasen) 1500-3000 times
10% Difenoconazole (Shigao) water dispersible granules 900-1500 times
25% Pyraclostrobin 2000x
50% of mycelia 3000 times
60% Pyraclostrobin Sensen 1200 times
70% thiophanate-methyl wettable powder 800 times
Strawberry powdery mildew best pharmaceutical
Through field efficacy experiments, the best control effect should belong to 25% pyraclostrobin, and the worst effect should be 70% thiophanate-methyl wettable powder.
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