Begonia Diseases and Prevention

Begonia brown spot

Introduction to Begonia Brown Spot

In the southern part of my country, brown spot disease of Malus nigrum is a common disease. Brown spot disease of weeping begonia is the main cause of premature leaf drop of weeping begonia. It can threaten the entire reproductive period of the weeping crabapple. In the early stage of the disease, white spots will appear on the front of the leaves and gradually expand. After more than 20 days, the white spots turn into brown spots, and the leaves begin to gradually burn and fall off. If left unattended, the crabapple will lose all its leaves in July and begin to bloom again.

Prevention and control methods of crabapple brown spot disease

During the breeding process, you must pay attention to the density between the plants. It should not be too small, and they should be placed in a windward and sunny place, otherwise they will become seriously sick.

According to the climatic characteristics of the southern region, appropriate prevention should be carried out according to different seasons and months. Please consult a doctor for specific details.

Spray crystal stone mixture or an equal amount of Bordeaux mixture once after the leaves fall in winter and before germination in the spring of the following year.

Malus malus

Introduction to Begonia Disease

The disease of crabapple usually occurs in late April every year. In the early stage, orange dots will appear, which will gradually expand, the diseased tissue will become thicker, and the back of the leaf will bulge. From May to June, yellow-white hair-like spore organs will grow on the raised areas on the back of the leaves, and will be transferred to the leaves of pine, cypress and arborvitae with the help of air currents, and then transferred back in April of the following year. After the spore organelles are removed, the diseased part will turn brown, causing the leaves to die. Methods for preventing and controlling crabapple-induced diseases: In the process of preventing crabapple-induced diseases, it is necessary to avoid planting crabapple flowers with pine, cypress and arborvitae plants to prevent the disease from continuing to cycle. The drug used to treat crabapple brown spot disease can be used to treat crabapple induced disease. If the disease cannot be alleviated, use specific drugs such as amylopectin emulsifiable concentrate, flusilazole water dispersible concentrate, and triadimefon emulsifiable concentrate for alternating treatment. Please refer to the drug instructions or consult your doctor for details.

Prevention and control methods of crabapple induced diseases

In the process of preventing crabapple from inducing disease, it is necessary to avoid planting crabapple flowers together with pine, cypress and arborvitae plants to prevent the disease from continuing to cycle. The drug used to treat crabapple brown spot disease can be used to treat crabapple induced disease. If the disease cannot be alleviated, use specific drugs such as amylopectin emulsifiable concentrate, flusilazole water dispersible concentrate, and triadimefon emulsifiable concentrate for alternating treatment. Please refer to the drug instructions or consult your doctor for details.