Prevention and Treatment of T-J plum blossom disease "T-J Plum Blossom Disease Prevention and Treatment Guide"

Plum Blossom (T-J) Disease Prevention and Control

Plum Blossom (T-J) Disease Prevention and Treatment

Today, we will introduce the topic of plum blossom knowledge from the flower clinic, which is about the prevention and treatment of plum blossom (T-J) disease, with the following specific content:

The (T-J) disease of plum blossoms is commonly found in Sichuan, Shaanxi, Hubei, Beijing, Jiangsu, Zhejiang, Anhui, Fujian, Shanghai and other places.

Both the leaves and young shoots of branches can be affected. Initially, the lesions on the leaves are small, brown, round to elliptical spots; later, the lesions expand and turn into gray to gray-white, with small black spots arranged in a ring pattern in the center; the edges of the lesions are purplish-red; in the later stage, the center of the lesions is easily broken, and in severe cases, the affected leaves drop prematurely.

The cause of the disease is a fungus, Colletotrichun mume, with setae on the conidial plates and single-celled, colorless, cylindrical conidia.

The pathogen overwinters in fallen leaves and shoots, and its spores are spread by wind and rain. The initial outbreak occurs from late April to early May, with the peak period during the plum rain and typhoon seasons when it is rainy. Excessive rain and humidity favor the development of the disease.

(1) Horticultural control: Remove diseased leaves and shoots, and combine with winter pruning to remove diseased and withered branches. Use fertilizers properly to prevent excessive application of nitrogen fertilizers and enhance plant resistance to diseases.

(2) Chemical control: You can choose to use a 75% carbendazim 700 times liquid, or a 70% (T-J) famoxadone 500 times liquid, or use a 1:2:200 lime Bordeaux mixture, applying once every 10-15 days, for a total of 2-3 applications.

The above is the full content of the prevention and treatment of plum blossom (T-J) disease, hoping it can help you. At the same time, we also hope that everyone will come to see more green plant and flower experience and common sense!