How to choose and use fungicides for orchids? Explained in one article

An organic sulfur fungicide specifically for treating various rust diseases. The pure product is white crystals, while the industrial product is reddish-brown or light rose-colored crystals. It contains more than 97% of the active ingredient sodium sulfanilate, is soluble in water, and is easily absorbed by plants after spraying. It is a fungicide with systemic therapeutic action, has very low toxicity to humans and livestock, and is safe for plants. It reacts with calcium-containing substances to form a precipitate, which affects its effectiveness. Formulation: 97% Disu rust original drug. Target pests and use method: mainly for controlling rust disease. Spraying with a 200-300 times dilution can achieve good results. When preparing, first dissolve the original drug in a small amount of water, then add the remaining full amount of water. If 100 g of soap powder is added to 50 kg of the spray solution, it can increase adhesion and improve control effectiveness. Spray once every 7-10 days, continuously 2-3 times, and the effect on controlling orchid rust disease is excellent. Precautions: 1. Do not mix with alkaline substances. 2. The 1000 times dilution of this pesticide mixed with 1500 times colloidal sulfur dilution works better. Liu Zhongjian