Aloes-vera Brown Spot Disease Prevention and Treatment
The editor introduces you to the aloes section of the floral clinic, including the prevention and treatment of aloes-vera brown spot disease. Let's take a look together.
Aloes-vera brown spot disease occurs on the leaves, initially appearing as dark green, water-stained spots that are easy to overlook; later, they gradually expand into circular or irregular lesions. The center of the lesions is sunken and turns from reddish-brown to grayish-brown, and the lesions can penetrate the leaves but do not perforate. Black dots appear on the front of the leaves, which are the pathogenic fungi. This disease is often mixed with (T-J) disease, mainly differentiated by the fact that (T-J) lesions have a grayish-white center, are sunken, with dark brown edges, and may even perforate.
It commonly occurs between June and October, and is most susceptible to infection under conditions of high temperature and heavy rain, especially when a sudden heavy rain follows hot weather. The prevention and treatment methods are: first, prevent waterlogging in the potting soil during cultivation. Second, maintain a well-ventilated and breathable environment, placing it in a cooler semi-shaded area during the summer, and avoid direct sunlight followed by rain.
Chemical prevention and treatment can start at the beginning of the disease with a 40% metalaxyl wettable powder solution diluted 600 to 700 times, 64% dimethomorph wettable powder solution diluted 500 times, or 5% thiabendazole solution diluted 600 to 700 times. Spray the leaves every 10 days, for 2 to 3 times, to achieve better results. You can try using one or two types of pesticides as a reference.
The above shares the complete content of the prevention and treatment methods for aloes-vera brown spot disease, for your comprehensive understanding and reference!