Fluoramide
1, high temperature can not be used, it is very prone to phytotoxicity.
2, the general effect on downy mildew.
3, can not be combined with emulsifiable oil, because the permeability is very good, and after the emulsified oil, there will be blade deformity, curling.
4, sensitive to melons, easy to produce phytotoxicity. Leafy vegetables are also not used as much as possible.
5, the most important point, the manufacturer's medication matters actually have the following words: do not apply drugs in plastic facilities.
Second, pyrimethanil
The substance of pyrimethanil is very very very sensitive to temperature. My feeling is that it is more than 25 degrees, which is particularly apt to cause phytotoxicity. Beans and eggplant can be used without it, no, it is best not to use it. It is especially easy to spot.
Symptoms of phytotoxicity at high temperatures:
1. After the eggplant is applied, the leaves appear dark brown spots.
2. After the cucumber is used, there is a chlorotic plaque. Severe blade burning, whitening.
3. The beans are dried directly, like a herbicide .
4, the tomato may have yellowing of the leaf margin.
5, cherries do not want to use, spray once, three years of white dry.
Just a little, this thing has a low temperature, no phytotoxicity, and a high temperature is a madman.
Third, procymidone
Procymidone is a common drug for our prevention and treatment of gray mold, and the safety factor is very, very high. However, this product has been tainted.
I used 80% water-dispersed granules for this medicine. I remember the medicinal damage. On the cabbage, the old leaves appeared white spots. After four or five days, the leaves began to yellow, and the growth of cabbage was inhibited. The cabbage in the core period stops the heart, and many people may not believe that there will be phytotoxicity, but it is out, and this year, once again, it is still on the cabbage, still using 80% water-dispersing particles. It is recommended that this medicine be used sparingly on cabbage, especially the vigorous growth of cabbage.
Fourth, metalaxyl
Metalaxyl, do not say this medicine spray, spray this medicine has no effect. Drug resistance is there.
Metalaxe is often used in places where beans and peppers are grown. It is not used for spraying. It is used to root, to prevent root rot and stem-based rot of Phytophthora. This medicine does not look at the spray effect, and the rooting effect is gray, which makes full use of the system's systemic and conductive properties. Many agricultural stores use this medicine as a secret recipe to root. However, however, if a bucket of water is more than 25 grams and the roots are less than 300, it is very prone to yellow heads, stop growing, and it will not grow or grow slowly for nearly a month. Many people eat here. Loss. Be sure to pay attention and pay attention.
Five, chlorpyrifos
Not to mention the effect of this drug on other insects, the quick-acting effect of this drug on Red Spider is unparalleled.
However, however, if the drug is once hot, and the concentration of the drug is too large and it is easy to damage the leaves, it causes yellowing and premature aging of the leaves. The most important thing is that this medicine is very easy to spot on the big dragon long eggplant, like a pockmark. Therefore, you must pay attention to the temperature, the concentration of the drug, and the time of spraying.
Rational use of the drug will produce a god-like effect on the spider. However, this drug has been listed as highly toxic this year and will not be used. such a pity.
Six, Fumei double
Fumeishuang I think that many people are too lazy to use it, but I have to explain that it is very important that if this medicine is used reasonably, it will have a great effect on Sclerotinia.
However, with this old medicine, the medicine that is too lazy to use is also harmful. On the tomato, it is easy to appear dry tip and specialize in young leaves. Appear once at a time. But when the sclerotinia disease breaks out, you don't have to, but the tomatoes on our side will top. Will not affect too much.
Seven, lycopene copper
In the past two years, the drug has been raised, and the family said it is safe and very safe. It is true that this drug is safe enough, but this drug has a fatal flaw. It sprays on the eggplant leaves and sprays in the afternoon. On the second day, the leaves appear wilted and gradually return to normal on the third day. However, this problem has caused me to lose a few big customers. The understanding of the peasants is wilting, which will affect the growth and affect the output.
However, the effect of this drug on the bacterial spot effect of eggplant is much better than other copper preparations. I don't understand what this principle is.
Eight, glyphosate
Glyphosate, a herbicide, is enough for cattle, but it has weaknesses, just like any martial arts kung fu, there are flaws.
The weakness of glyphosate is that low temperature does not die. So at low temperatures, don't sell this product. Farmers think that glyphosate will kill the grass. If it doesn't die, it is a fake drug. Therefore, weeding with this product at low temperatures makes it easy to earn a reputation for selling fake drugs.
Nine, acetamiprid
The acetamiprid, the common medicine for mites, is very familiar, but this medicine has a defect. I don't know if it is written or not written in the manual. This medicine is sensitive to temperature, high temperature and good insecticidal effect. The temperature is low, and the effect is not lost. It doesn't matter in the shed, you can pay attention to the temperature of the medicine in the open air.
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