1. Selection of production sites (1) The production site has a good ecological environment, excellent water quality, no toxic and harmful gases, and there are no other sources of sewage pollution around 300m. (2) The production area environment should meet the requirements of ny5010 pollution-free cultivation environment. 2. Pest control (1) Principles of prevention and control Adhere to the principle of prevention and strictly control chemical prevention and control. (2) The main diseases to prevent the main diseases of the toxic bacteria (Mucor, Neurospora, Trichoderma, Aspergillus flavus) and bacterial base rot, prevention methods are: strict inspection of provenances; keep the environment clean; find the disease cleared in time, and Harmless treatment; use of chemical pesticides is prohibited during fruiting. (3) Major insect pest control The main insect pests are mushroom fly, mushroom mosquito, and fleas. Prevention and control methods are: barrier prevention and control of pests, control of ditch around the site, in the mushroom house to install sand doors and windows to prevent pests from entering; prohibit the use of chemical pesticides.