Latest Precautions for Pesticide Use on Edible Fungi

Edible fungi are a common type of vegetable in daily life. They are not only highly nutritious but also mostly delicious and tasty, and the cultivation process of edible fungi cannot be separated from the use of pesticides. This article provides a detailed introduction to the precautions for pesticide use on edible fungi. Let's take a look together.

1. Treat the disease with the right remedy

Before using pesticides, you must first understand the symptoms of pest and disease outbreaks so as to treat the disease with the right remedy, avoiding incorrect pesticide use that causes unnecessary effects. At the same time, you also need to be familiar with the properties of the chemicals and understand the difference between the two major categories of insecticides and fungicides, as the two cannot replace each other. For example, when edible fungi are affected by sciarid flies or dung flies, trichlorfon has a special effect on the adults and larvae of mushrooms, but it has poor killing power against mites. Oyster mushrooms are relatively sensitive to dichlorvos, and even a slightly higher concentration will cause phytotoxicity, so it is best to switch to trichlorfon or phoxim. Button mushrooms are relatively sensitive to trichlorfon, so it is best to switch to dichlorvos.

2. The concentration used must be reasonable

When using pesticides, the application concentration should be determined according to the type of chemical, the pests and diseases, and the different growth stages of the edible fungi. Generally, before sowing, when composting materials and disinfecting the mushroom house, the chemical concentration can be appropriately higher. After sowing and before mushroom emergence, the pesticide used should be strictly controlled within a safe range, and during the growth and development of the fruiting bodies, the concentration should be even lower. For example, when using phoxim plus an acaricide to control mites and other pests, a 500-fold dilution can be used from the composting stage to before mushroom emergence, but when pesticide use is necessary during the fruiting body stage, it must be reduced to a 1000-fold dilution.

3. Pesticide use is strictly prohibited during the mushroom stage

When using pesticides, they must be applied before mushroom emergence, or after the mushrooms have been completely harvested. Using pesticides during the mushroom stage is absolutely forbidden. This is because the cultivation cycle of edible fungi is short, and chemicals can easily remain and cause food poisoning, which in turn has a serious impact on product circulation and consumption, and some pesticides can also cause phytotoxicity to edible fungi.

4. Choose chemicals with high efficiency, low toxicity and low residue

When choosing pesticides, try to select chemicals with high efficiency, low toxicity and low residue, and prohibit the use of highly toxic pesticides. The more commonly used fungicides include carbendazim, chlorothalonil, zineb, thiophanate-methyl, Bordeaux mixture, lime sulfur mixture, etc.; the commonly used insecticides include phoxim, dichlorvos, trichlorfon, fenvalerate, etc. Whether spraying, mixing into the substrate, or disinfecting, it is strictly forbidden to use chemicals that are highly toxic and have long residual times, such as organic mercury and organophosphorus compounds. At the same time, attention should also be paid to the alternating use of chemicals to avoid developing resistance and reducing pesticide efficacy.

The above is an introduction to the precautions for pesticide use on edible fungi. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.