Common herbicide phytotoxicity risks

Thifensulfuron: It has a long shelf life and it is prone to produce phytotoxicity to the crops that grow on it. Acetochlor: Excessive amounts or low temperatures and heavy rain may cause injury. Atrazine: It has a long shelf life and is prone to produce phytotoxicity on crops that grow after crops. Metolachlor: Excessive quantities, unequal spraying, or rainfall after application can cause phytotoxicity.

2 A 4 chlorine: The application of corn in the jointing process is prone to injury, and the dicotyledonous plants are susceptible to drift hazards.

Nicosulfuron: There were differences in drug resistance among different breeds, and the corn was sensitive to the drug before and after the 10-leaf stage.

Mesotrione: Overdose or phytotoxicity in the case of overdose in case of overdose after application.

2,4-D butyl ester: After the application of heavy rain, it is easy to produce leaching toxicity. The use of excessive doses and improper use of time caused corn injury to account for about 20% of the application area, in severe cases can not be restored.

Herbicides commonly used in soybean fields

Acetochlor: The amount is generally too high, serious injury, in severe cases can reduce production by 20% to 30%.

Pre-emergence, excessive sowing, deep sowing, low soil organic matter content, low wetlands, and heavy rain may cause phytotoxicity. Inappropriate use method, application of soil in arching stage or soil mixing after pre-emergence application, especially in low-lying soils.

Refined quizalofop: Pay attention to the drift hazards of other sensitive crops during application.

Fomesafen: Due to the high doses used, the crop damage area accounts for about 80% of the area used.

High temperature, premature or late application of pesticides, poor drainage, low temperature and high humidity, and long-term accumulation of water in the field are prone to injury (return to normal).

Sekjin: The resistance of different varieties to the pharmaceuticals varies, with persistent high temperatures, continuous rainfall, and sandy soil damage or death.

2,4-D butyl ester: Heavy rain will cause phytotoxicity after application of pesticides to the soil. After application of pesticides to stems and leaves, severe recovery is difficult. The use of 2,4-D butyl ester and its mixture often cause the damage of soybean seedlings to account for 10% to 20% of the application area of ​​2,4-D butyl ester.

Rice field commonly used herbicides

Butachlor: The water layer is too deep when applied and floods the heart and leaves, causing phytotoxicity. The use dose is too high, the use period is improper, and the occurrence area accounts for 50% of the use area.

Quincinol: Unsafe, inhibits rice growth.

2 A 4 chlorine: Poor rice safety, suppression of childbirth, resulting in varying degrees of reduction in production.

Herba pine: drain surface water, otherwise it is easy to produce phytotoxicity.

F-trimethoprim: rice seedlings used to flood the leaf heart, or excessive application of pesticides, pesticide application will produce varying degrees of injury.

Bensulfuron: Pay attention to water depth and water retention time, otherwise it is easy to produce phytotoxicity.

Penoxsulam: When applied in deep water, it is prone to injury.

Shaxi Phosphorus: excessive application or flooding leaves will produce phytotoxicity. The safety of the pharmaceutical itself and the quality of the northern seedlings are relatively weak, accounting for 20% of the area used.

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