It’s not white mushroom but paraquat, a kind of pesticide

Paraquat, the chemical name is 1-1-dimethyl-4-4-bipyridyl cation salt, is A fast-killing herbicide with contact killing effect and certain systemic effect. It can be quickly absorbed by the green tissue of plants, causing them to die. Has no effect on non-green organizations. It quickly combines with the soil and becomes passivated in the soil. It is ineffective on plant roots, perennial underground stems and ratoons.

However, paraquat is extremely toxic to humans, and there is no specific antidote. The mortality rate from oral poisoning can reach more than 90%. It has been banned or strictly restricted in use in more than 20 countries. Moderately toxic. However, it is extremely toxic to humans, and there is no specific drug. The mortality rate from oral poisoning can reach over 90%! It has been banned or severely restricted in more than 20 countries.

The acute oral LD50 in rats is 150 mg/kg, and the acute transdermal LD50 in rabbits is 204 mg/kg. It is low-toxic to poultry, fish and bees. It is irritating to the eyes and can cause nail and skin ulcers. Oral administration of 3 grams can cause systemic poisoning, liver, kidney and other multiple organ failure, pulmonary fibrosis (irreversible) and respiratory failure. Because the symptoms are not obvious during the golden period of early treatment of poisoning, it is easy to misdiagnose or ignore the condition. Since July 1, 2014, my country has revoked the registration and production license of paraquat aqueous agent and stopped production; but the mother drug manufacturer has retained the aqueous agent to export overseas. Usage registration, production only for export is allowed, and domestic sales and use of aqueous agents will be stopped on July 1, 2014.

The following is a picture of paraquat: