Herbicide nicosulfuron phytotoxicity

Herbicide ( metsulfuron beans )

( A ) the cause of the injury . Previous crop herbicide application or locally significant dose is too high , the residue in the soil after herbicide crop of corn can produce injury .

( Two ) phytotoxicity symptoms. Soil treatment with herbicides , corn seedling growth inhibition , shorter taproot and lateral buds grow slowly, grow yellow leaves . With herbicides stems, leaves treatment, foliar chlorosis starts from the base , yellow, purple , and gradually extended to the whole leaf . Sometimes leaves rolled into a simple shape , easy to expand . Growth inhibition, plants grow shorter .

( Three ) injury prevention and mitigation measures . Herbicide should not be used for corn , especially not in the pre-emergence application . Qiancha soybean field applied herbicide excessive or uneven flower sprayer spraying , the latter should not be planting corn stubble .

Nicosulfuron ( Nicosulfuron )

( A ) the cause of the injury . With herbicides stem, leaf processing , corn Nicosulfuron resistant , normal application generally does not produce injury , only spraying excessive, excessive or topical drugs appear when the phytotoxicity symptoms. Shi Guo organophosphate insecticides Zaishi nicosulfuron may produce injury.

( Two ) phytotoxicity symptoms. With herbicides stems, leaves treatment, heart back green leaf base , or irregular chlorotic leaf spot . Some leaves curling into a tubular shape , margin shrinkage, affecting leaf extract . Some growth was lodging oblique shape . Growth inhibition, dwarf plants .

( Three ) injury prevention and mitigation measures . Avoid excessive hand pump sprayers spraying, spraying to ensure uniformity . Phytotoxicity generally do not take action. With naphthalene dicarboxylic anhydride for corn seed coating can reduce Nicosulfuron role with organophosphate insecticides caused injury.