Edible Mushroom Preservation Methods and Precautions for Using Fungicides

(1) When choosing a fungicide, first understand its nature. There are two types of fungicides: one is a protectant, which prevents plants from developing disease, such as Bordeaux mixture, mancozeb, and carbendazim; the other is a curative fungicide, applied after plants develop disease to kill or inhibit the pathogens that have invaded the plant. Curative fungicides work better when applied in the early stages of disease, such as compound fungicides like Kang Ku Ning and Bao Zhi Da. (2) Fungicides should be sprayed before 9 a.m. or after 4 p.m., avoiding use under strong sunlight; if sprayed under strong sunlight, the chemicals break down and evaporate easily, which hinders crop absorption. (3) Fungicides must not be mixed with alkaline pesticides. Do not arbitrarily increase or decrease the amount of fungicide used, and mix only as much as needed right before use. (4) Fungicides are mostly powders, emulsions, and suspension concentrates, and must be diluted before application. When diluting, add the chemical first, then the water, and stir with a stick. When mixing with other pesticides, the fungicide should also be diluted first before mixing in the other pesticides. (5) The interval between fungicide sprays is 7—10 days. For chemicals with weak adhesion and poor systemic activity, if rain falls within 3 hours after spraying, re-spray after the rain.