Control techniques of kidney bean retting root disease in protected area

Kidney bean retting root disease is a common disease of kidney bean in protected area. continuous cropping fields occur seriously, with a yield reduction of about 30% in general diseased fields and more than 80% in seriously diseased fields. In order to prevent and cure the disease, we should pay attention to the following links: first, disinfect the nursery bed soil before breeding kidney bean seedlings. The method is to use 50% carbendazim and 50% Fumei cream, each 10 grams per square meter, mix 10 grams of fine soil, evenly sprinkle on the border surface, and then use rake to mix the medicinal soil and topsoil. Second, the soil treatment of hole application was carried out before direct seeding or seedling planting. The agents used are 50% carbendazim and 50% Fumei cream, 500 grams per 500 points, 10 times mixed with fine soil, and sprinkled in the hole before sowing or planting. Third, irrigation root during the growth period of kidney bean, it is found that there are retting diseased plants, do not water at this time, first cultivate the soil, and then irrigate the roots with the solution of 65% anthracnose and 2000 times strong root-strengthening agent, 150g ~ 250g per plant, once a week, continuous root irrigation for 2 ~ 3 times, the diseased plant can resume growth.