There are no strangers in the world, and it is the same for our agricultural materials industry. The types of phytotoxics are also dazzling, some have been heard, some are unheard of, and the following is a brief introduction.
First, the use of inorganic copper preparations more times, will lead to the growth of herbivorous mites, that is, the growth of harmful sputum, which is a side effect of medication, let it be classified as toxic!
Second, the use of pyraclostrobin on the jujube, used within 20 days before harvest, has caused gluttony late maturity, bad taste, decreased commodity value, but also a kind of phytotoxicity.
Third, many of the prochloraz in the use of grapes, there will be unpleasant odor, so basically try to avoid the use of prochloraz in the month before harvest.
Fourth, many pear areas to promote the public pear to change the mother pear is very hot, but the amount is slightly larger, or the spray is too thin, it will cause the head big butt small situation, deformed fruit.
Five, triazole products can inhibit growth, and the fruit tree's deciduous disease effect is good, but the large amount will lead to severe defoliation of defoliation crops, because triazoles have the effect of inhibiting gibberellin synthesis, while plants In vivo, gibberellin and abscisic acid are generally in equilibrium, and excessive inhibition of gibberellin synthesis breaks the balance and leads to defoliation.
Sixth, difenoconazole was used on the top of the white, resulting in no harvest. The production process of chalkiness is a variation of growth caused by black powder bacteria. When the black powder fungus is killed by difenoconazole, the growth of this mutation stops immediately, and the yield is impossible to talk about.
Seven, foliar fertilizer caused trace element poisoning, the reason is that there are fine particles inside the foliar fertilizer, sprayed on the surface of the crop to cause local whitening symptoms, as shown in the following figure of cucumber, once seen grapes, but unfortunately did not leave a picture.
8. After being closed with oxyfluorfen, it will rain, and the splashed mud will stick to the blade, which will cause the leaf to burn.
Nine, pendimethalin + paraquat is used inside the greenhouse. The water droplets dripping from the back shed film will cause the blade to burn. It is no problem to use any one alone, that is, two will occur together.
Ten, 2,4-D-butyl ester migration is particularly serious. Generally speaking, there are vegetables or fruit trees nearby, which can basically be injured. What is even more unusual is the 2,4-D poisoning seen in the nursery shed. The heart leaves are all twisted, and the completely closed shed does not know how to get in. The damage is seriously visible.
11. In the garden, chloroflupiric acid was used for lawn weeding, but in the past few days, the dragon claws and poplar leaves on the lawn began to crotch. It was used under high temperature and the fumigant caused by transpiration of the liquid.
Twelve, there are retail stores to two packs of 60 grams of sodium dimethyltetrachloride in the basin for secondary dilution, but somehow, the liquid is not used, directly poured into the tree pit in front of the door, the results of three days passed, the leaves all Falling, a big tree is quite dead.
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