The following comprehensive measures can be taken to prevent and control cowpea rust.

1, the implementation of crop rotation, spring and fall stubble bean land should be isolated, immediately after the harvest to clean the field, remove and destroy the disease residues, promote the death of summer spores, reduce the source of bacteria.

2, according to local conditions, the introduction of early maturity disease-resistant varieties, appropriate early sowing, so that the harvest season to avoid the rainy season, can reduce the incidence of disease. Yue Xia 2 for high resistance varieties, Guilin long bean curd, wire green bean curd for more resistant varieties.

3, take all feasible measures to reduce field humidity, appropriate application of phosphorus and potassium fertilizer, improve plant resistance.

4, pharmaceutical prevention and control: the first symptoms in the field can choose to spray the following agents: (1) 15% powder rust Ning wettable powder 1500 times. (2) 20% powder rust Ning emulsion 2000 times. (3) 40% polysulfide suspension 400 times. (4) 10% Shikao water-dispersible granules 1500-2000 times liquid (Switzerland Novartis Pharmaceuticals Corporation new products). The first two kinds of drugs every 15 days spray, the last two kinds of drugs every 7-10 days spray, spray 2-4 times in a row. Can also be used in the early stage of the onset of the 50% chlorosis spirit emulsion 800 times, or 12% green emulsion copper emulsion 800 times, or 50% Kemodan wettable powder 450 times, such as spray control, every 7-10 days spraying, prevention and control of 2-3 times.

Spraying 15% triadimefon wettable powder 1000～1500 times, 50% chlormequat chloride emulsion 800 times, 25% propiconazole emulsion 1000 times, 12.5% aliconazole wettable powder l000～2000 times, 10% phenyl ether metacyclonazole water-dispersible granules 2000～300g times, 40% fusilazole emulsion 4000 times, 25% fusilazole emulsion 2000 times, 25% fusilazole emulsion 4000 times, 25% fusilazole emulsion 2000 times. Propiconazole emulsion 2000 times liquid + 15% triadimefon wettable powder 2,000 times liquid, 70% Dyson Manganese zinc wettable powder l000 times liquid + l5% triadimefon wettable powder 2000 times liquid and other agents, the interval of 7 ~ l0 days 1 time, even spraying 2 ~ 3 times, uniform spray.