Mushroom flies

The larvae, also known as mushroom maggots, mainly feed on the fruiting bodies, tunneling through them and thus affecting quality, and the wounds they create are also very easily infected by pathogens, causing rot. Different methods should be used to control mushroom flies at different stages. If large numbers of mushroom maggots appear before mushroom emergence, dichlorvos can be used for fumigation at a rate of 0.90 kg per 100 sq m, and at the same time 0.15 kg of a 1% potassium chloride or sodium chloride solution (which can be replaced with 5% salt water) should be sprayed on each culture block; if mushroom maggots cause damage after mushroom emergence, low-toxicity pesticides such as derris extract, chlorpyrifos and nicotine can be sprayed. (Nicotine can be made at home: take 0.50 kg of tobacco stems, add 5 kg of water, boil, and then take the solution and spray it.) In addition, ventilation should be strengthened and the temperature and humidity inside the shed should be adjusted to worsen the pests' living environment, so as to achieve the purpose of controlling their damage.