Key Points of Disease Control Techniques During the Garlic Growing Period

1. Garlic rust: In years with abundant rainfall, check the disease centers promptly in early spring and take timely preventive measures. Generally, use 15 percent Fenxiuning wettable powder at 1000 times dilution, or 15 percent Fenxiuning wettable powder at 1500 times dilution plus 70 percent mancozeb wettable powder at 1000 times dilution for the first control in early April, then apply a second control after 10 to 15 days, generally applying 2 to 3 times depending on the severity of the disease.

2. For garlic leaf blight, leaf spot diseases, gray mold, etc., use 75 percent chlorothalonil wettable powder at 800 times dilution, or 64 percent Sandofan wettable powder at 500 times dilution, or 50 percent copper succinate-glutarate wettable powder at 500 times dilution, or 50 percent iprodione wettable powder at 1500 times dilution. Depending on the field disease situation, begin control in late November or late March, and apply 2 times in spring.

3. For viral diseases, using virus-free garlic gives the best control effect. Field plants are robust with dark leaf color, and generally no spraying is needed. Secondly, in the early stage of disease onset, spray 1.5 percent Zhibingling at 1000 times dilution, or 5 percent Junduqing at 300 times dilution.

4. Bacterial soft rot: In the early stage of disease onset, spray 72 percent agricultural streptomycin soluble powder at 4000 times dilution, or 77 percent Keshade wettable microgranule at 500 to 800 times dilution, once about every 7 days, applying 2 to 3 consecutive times depending on the severity of the disease.