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For safety reasons, 30% acephate can not be used for at least 7 days before harvesting. The safe interval for 40% dimethoate is 7 days for greens, 10 days for cabbage, 10 days for kidney beans, and 15 days for radish. . 50% phoxim cannot be used for 5 days before harvesting. 40% chlorpyrifos on the leafy vegetables on a safe interval of 7 days. 90% of the crystal trichlorfon was stopped 7 days before the harvest. Pyrethroid insecticides have a safe interval of not less than 2 days with 2.5% enemy killing, no less than 3 days with 20% blast, 5% of rifampicin and 10% of sylvestre. There is no less than 5-7 days of 2.5% of the effort, no less than 7-12 days of 20% of the speed of killing. The safety interval of carbamate insecticides is 10% for 10 days and 15 days for metoprolol and thiodionone, and 7-10 days for anti-potassium. The fungicides include chlorpyrifos, chlorhexidine, and ruinong in no less than 7 days. Powder rust is not less than 3 days on cucumber. Plex is forbidden to use for 3 days before harvesting on cucumber and other crops. Carbendazim should not be less than 5 days, methyl thiophanate is not less than 14 days, and chlorothalonil is not bad. In 23 days.
Author: Zhang Xia Hua County Farm Bureau
Vegetable production must strictly abide by the safety interval of pesticides
The safe interval of pesticides refers to the time required for the pesticide residue to fall below the allowable pesticide residue in the food before the last application of the crop to the time of harvest. Vegetable pesticide residues have always been the most concerned issue. To ensure the safety of vegetables, the time between the last spray and harvest must be greater than the safety interval, and crops are not allowed to be harvested during the safe interval. Due to their different characteristics and degradation rates, various pesticides have different safety trends and seasons, and the safety intervals after application of pesticides are also different.
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