Symptoms: yellow-brown lesions on fleshy leaves. The summer spores grow under the epidermis and are red-brown and powdery after exposure. The teliospore was born under the epidermis and was dark brown after breaking. Pathogens: Uromycesaloes (Cooke) Magnus, called Aloe vera. Infection route: The pathogen mainly stays on the surface of the soil with winter spores as the residue of the diseased plant. 1 After wintering, the spores germinate in a suitable environment to produce basidiospores, spread to the leaves by air flow, and invade and damage the germ tubes. Sporulators and rust spores are formed successively in the affected parts. 2 After the mature rust spores, they spread by airflow, then invaded after germination, and then produced summer spores and summer spores in the host's damaged area. 3 After the summer spores matured, they were again spread by air flow and repeatedly infected. Until the late growth period or when the weather turns cold, teliospore and teliospores form in the diseased part and then winter. Occurrence conditions: Occurrence of rust is closely related to climatic conditions. The average daily temperature is 32-27 degrees, and the weather is rainy, with high humidity, and rust may occur seriously. Control methods: Clear the field sickness and concentrate burn. Biapenem Api,Biapenem Crude,Biapenem Powder,Biapenem Side Chain Xinxiang Haibin Pharmaceutical Co.,Ltd , https://www.carbapenemspharmacy.com