Scientific understanding and responding to the injury occurred

Injury due to the performance of crop species , pharmacy characteristics , dose and mode of application -specific, can be divided into the following types:

Growth arrest and die even as Yaojibanzhong or delayed emergence herbicide for soil treatment or lower germination rate ; crop growing season misuse Herbicide back sprayersspraying both leaf or soil treatment plants are causing yellowing , wilt .

Burns leaf tissue . Such as leaf wilt , wilting , coke side , etc. , occurs in young tissues broadleaf plants , the use of emulsions prone . Leaves and fruits on the local cell damage may also cause different color spots , reducing vegetable and fruit quality.

Malformations, including leaf , wrinkled , tufted, clubroot , chicken root , deformed ear ( fruit ) and so on. If booting the use of hormones in wheat herbicide 2,4 - butylate cause ear deformities ; tomato dip flower caused by abnormal fruit and so on.

Chlorotic . If using long , ureas chloroplasts herbicide damage , performance leaves yellowing, whitening , the latter will appear off leaves or fruit , or leaves , young shoots scorch .

Infertility, is not true. Mainly refers to the reproductive stages of a pharmaceutical crop effects, such as rice booting misuse of glyphosate , will increase the empty flat rate .

Observed that all of these symptoms, determine the initial crop hurt, but proved to be caused by the need to do the following pharmaceutical Survey:

View medication time and the time relationship of adverse reactions . Role of direct, acute onset of phytotoxicity after application can occur within hours or days , it is easier to establish contact . Chronic injury symptoms appear slowly , even in the Xiacha only manifested , but after exclusion of other special circumstances you can still find some connection .

Comparative survey medication and without medication, using different agents after crop conditions .

Symptoms of drug mechanism of action and whether the link between features .

For suspected acute injury , optional normal growth of the plots by the previous method and dosage liquid sprayer spraying again to observe whether there is the same symptoms .

If necessary, ask the professional sector to take soil , irrigation and non- normal plants for pesticide residue testing.