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How to determine the harm of pesticides?

Published: 2024-11-06 Author: mysheen
Last Updated: 2024/11/06, How to determine the harm of pesticides? Please introduce the methods for the drug damage caused by crops. Due to the existence of disease factors, fertilizer deficiency factors and crop physiological obstacles, it is more difficult to identify. After encountering drug damage, crop growth is abnormal, diagnosis should pay attention to the following points: first, crop differences.

How to determine the harm of pesticides? Please introduce the methods for the drug damage caused by crops. Due to the existence of disease factors, fertilizer deficiency factors and crop physiological obstacles, it is more difficult to identify. After encountering drug damage, if the crop grows abnormally, the diagnosis should pay attention to the following points: first, whether the abnormal symptoms of crops occur in the later stage of pesticide application, we should verify whether the variety, period, dosage and usage of pesticides used are correct. Second, to investigate whether there are different abnormal symptoms in the adjacent fields of the same crop, in order to rule out non-drug harmful factors. Third, be familiar with the symptoms and occurrence regularity of crop diseases, drug damage and nutrition deficiency, and pay attention to distinguish them. Fourth, the biological culture method and anatomical method were used to check the changes of crop tissues and cells where abnormal symptoms appeared and whether there were pathogens. This is a more accurate diagnostic method. Click to get more pesticide application techniques

 
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