In the process of applying pesticides , in addition to the unsatisfactory efficacy of pesticides, the most feared by farmers is the phytotoxicity. The following are the analysis of the phytotoxicity of common pesticides on crops, for your reference, to avoid the economic damage caused by crops. :
[Desen Manganese Zinc]
Tobacco, cucurbitaceae, certain pears are sensitive. When the pear fruit is small, it is prone to fruit spots. High concentrations can cause dead spots on the edges of rice leaves. Essence of edamame, lychee and grape fruit are used with caution.
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High-concentration pear trees, persimmons, peaches, and plums are susceptible to phytotoxicity and should not be used. Apples cannot be used within 20 days after falling flowers.
[carbendazim]
It can be mixed with general fungicides , but it should be used as needed. Cannot be mixed with copper preparations.
ã€Spring Thymidine (addition of rice)】
It has slight phytotoxicity to soybeans and alfalfa, and should be used when it is used in neighboring soybeans and alfalfa.
[Spring Thunder Oxygen Chloride Copper (Garinong)]
The young leaves of apples, grapes, soybeans and alfalfa are sensitive, and there will be slight curls and brown spots. Attention concentration should be applied after 4 pm.
[Bordeaux liquid]
Potato, tomato, pepper, melon, peach, plum, pear, apple, persimmon, cabbage, soybean, wheat, lettuce, etc., are particularly sensitive to copper ions;
It is easy to produce phytotoxicity to peach, plum, apricot, plum, Chinese pear, etc., and damp and rainy drugs are harmful. Peach is not used; Li and hawthorn are sensitive to the growth period, no matter what the dosage is easy to produce phytotoxicity, it is not suitable to use; grapes are sensitive to lime, when the lime is higher than the multiple, the grape is susceptible to phytotoxicity, the application of lime half volume Pear fruit is sensitive to copper ions, and it is necessary to use lime. When the lime is lower than the multiple amount, pears, apples, and apricots are susceptible to phytotoxicity. After the hawthorn, apple blossom, or fruit growth period, the Bordeaux mixture is sprayed, and the fruit rust is heavier. Apple should be used as much as possible in the later stages of growth.
ã€sulfur】
It is sensitive to cucumber, soybean, potato, plum and pear.
[Stone sulphur mixture]
Peach, plum, plum, pear, grape, bean, potato, tomato, onion, ginger, melon, cucumber, etc. are sensitive. For young plants of grape, peach, pear, plum, plum, apricot and other fruit trees, susceptibility to phytotoxicity should be taken. Use it carefully. It is best to spray it in the deciduous season. Do not use it during the growing season or flowering period. It has certain phytotoxicity to kiwi, grape, cucumber and legume flowers.
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The deciduous fruit trees are very sensitive to them, and the pesticide manufacturers remind everyone that they should not be used during the summer growing season. It is easy to produce phytotoxicity to persimmon. Citrus (autumn and winter safety) is not safe in spring and summer. It must be used in the morning or evening.
[pine base mixture]
Deciduous fruit trees are very sensitive to them and should not be used during the summer growing season.
[Moldenergy (amide)]
Sensitive to pears, prone to leaf brown spots.
[Malignant]
Can not be mixed with strong acid agents, 100 times liquid may have slight phytotoxicity to wheat, so pay attention when using.
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Sensitive to certain varieties of peaches, grapes, figs and apples, susceptible to phytotoxicity.
[Sodium pentachlorophenol]
It is mainly used in clear gardens. It is used after plant sprouting and is easy to be toxic.
[2,4-D butyl ester] [dimethyltetrachloride]
All fruit trees are sensitive to them.
[Glyphosate]
Both are killed herbicides , all fruit tree varieties are sensitive, should be very careful for the directional spray weeding between fruit trees, spraying this kind of herbicide under the apricot tree is easy to produce phytotoxicity, it should not be used.
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Kiwifruit is sensitive and should be avoided. Can be mixed with a variety of pesticides, including alkaline agents, but should not be mixed with copper preparations [polysulfide suspension]
High concentration of polysulfide suspensions and the like can cause citrus sunburn when applied in a high temperature period.
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Peach, plum and tea are more sensitive, especially peach trees, should be used with caution.
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It is easy to cause minor phytotoxicity when used on cucumber.
Fluorosilazole
Some pear varieties (especially Dangshan Pear) are very sensitive during the young fruit period (before May) and are not used.
Oxazol
Not suitable for cabbage, mustard, cucumber, tomato seedlings.
ã€Propiconazole】
In the seedling stage, it is easy to reduce the seedling rate, the seedlings are rigid, inhibit growth, burn young fruit, try to use it in the middle and late crops; sensitive to melons, grapes, strawberries, tobacco and other crops, do not use.
[arsenic preparation]
Certain varieties of stone, citrus and pear trees are not available. Fumei arsenic is used in the dormant period of fruit trees and is not used in the growing season.
ã€Triazolone】
Not suitable for cabbage, beans, mustard, cucumber, tomato seedlings.
ã€Copper fungicide】
It causes phytotoxicity to peach and plum.
ã€Copper Hydroxide】
Sensitive to peach, plum, pear, apple and persimmon.
ã€Cuprous oxide】
Fruit trees are susceptible to phytotoxicity during flowering and young fruiting.
The above-mentioned pesticides produced by China's pesticide network are introduced to you for the analysis of the phytotoxicity of common pesticides during use due to improper handling and use. Try to avoid the occurrence of crop phytotoxicity.
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