Common diseases and treatment methods of night-blooming primrose

Symptoms of night jasmine leaf blight

Leaf blight mostly infects the leaf edges and tips. The lesions are irregular in shape, ranging from small to large, and their color evolves from reddish brown to grayish brown. The lesions are connected into large dead spots, and the dry area can reach 1/3 to 1/2 of the leaf. The edge of the lesion often has a band that is darker than the lesion, and the boundary between the diseased part and the healthy part is very obvious.

Disease pattern of night primrose

It usually occurs more frequently from July to October, and mostly on the lower leaves of the plants. It should be noted that the thinner the plant, the more susceptible it is to the disease. The cause of the disease is mostly because the plants grow in a high temperature, humid and poorly ventilated environment.

Prevention and control methods of night-blooming jasmine leaf blight

First, the infected fallen leaves are completely burned in the autumn, leaving no trace, to prevent the bacteria from overwintering on the leaves.

Second, improve the growth environment of the plants and try to destroy the living environment of the pathogens.

Third, use fungicides. You can choose to spray 600 times diluted 65% Zineb wettable powder.