How the injury occurred

Some friends of farmers in the field after the injury occurs first thought is whether the use of substandard counterfeit pesticides. Indeed, pharmaceutical chemical control is the foundation . To this end, we carefully select the purchase of medicines channels to promote and improve the ability to identify counterfeit pesticides . Actually, it 's the other reason phytotoxicity may be more important reason is the use of the problem . Whatever pesticides, has duality , like human medicine called " three-drug ." In pest control there is also the possibility of crop damage . After several experiments , as long as strict compliance , that is, to achieve symptomatic , timely and appropriate use will not appear on the injury . Generally herbicides, plant growth regulators less secure , must be extremely careful when using .

Summary In the course of medication often make mistakes , to the following few:

Bought the wrong the wrong agents, such as mistakenly MCPA sodium salt when nitrofen use , that they are common herbicides can ; worry ineffective, arbitrarily increase the dose ; dilution bad or knapsack sprayer spray evenly, resulting in local drug excessive ; improper use of , such as copper ion -sensitive peach, plum, apricot, persimmon , pear , cabbage using Bordeaux mixture ; or the use of herbicides in paddy water leakage sandy closed treatment ; or in windy day use of 2,4 - butylate , although in a wheat field spraying , but the wind drift into the adjacent liquid melon , soybean fields or forests , or on weak resistant flowering of spraying Pharmacy ; spraying equipment cleaning is not well, pharmaceutical residues cause injury , such as sprayed 2,4 - butylate no serious cleaning home garden sprayer spray , and then for melons, vegetables , bean fields.

In addition, special weather , soil , cultivation environment may lead to injury, should be avoided. Such as high temperature volatile trifluralin and EPTC and other agents for soil treatment ; when the soil temperature is below 15 ℃, use on soybean Acifluorfen . In addition , rainfall may be leached into the lower surface of Pharmacy crop roots and is absorbed deep irrigation or drought resistant crops may also reduce and increase the likelihood of occurrence of injury .