Diseases and Pests of Rieger Begonia and Their Control

Diseases and their control of Rieger Begonia

Leaf spot

Leaf spot diseases of Reiger Begonia are caused by bacteria or fungi. It will cause spots to appear on the leaves of Reie Begonia and cause the leaves to become necrotic. The disease will gradually expand and affect the growth of Reie Begonia.

If leaf spot disease occurs in Begonia, it is difficult to treat. The best way is to do every job as well as possible in daily management and not give leaf spot disease a chance to break out. When leaf spot disease occurs, you can observe the infection condition of the plant. If the disease is mild, you can remove the infected part. If the disease is severe, you need to remove the entire plant. In addition, some high-concentration fertilizers or special pesticides can help alleviate the condition.

Botrytis cinerea

Gray mold usually causes lesions on the leaves of Reig Begonia, and the disease can become serious. To control gray mold, you can start with climatic conditions, because temperature and humidity will affect the reproduction of gray mold spores. Keep the growing environment ventilated, lower the air humidity at night, and spray some fungicides in time for prevention.

Other diseases

In addition, Begonia may also have some other diseases, such as bacterial disease, mildew, red leaf disease, and gray spot disease, which all need to be prevented and treated properly.

Pests of Rieger Begonia

Pests

Rieger Begonia may be harmed by pests including green flies, nematodes, thrips, aphids, red spiders, and terminal bud mites. These hazards are very serious.

Solution

Regarding pest damage, you can use pesticides to spray and kill them, but it is better to reduce the use of pesticides, because although pesticides can kill insects, they will still cause pests to develop resistance and cause pesticide pollution. Using homemade insecticides is very effective. Chili water and garlic water are very effective.