Pesticide compounding knowledge

In the control of pests and diseases, the single-agent gradually fades out of the stage of history. In order to increase the effectiveness of prevention and cure, both pesticides are popularized and applied.

The rational use of pesticides can improve the control effect, delay the development of insecticide resistance, increase the effectiveness of control, and reduce the amount of pesticides. Mixing pesticides with different pests and diseases can also reduce the number of pesticide applications and thus reduce labor costs.

Pesticide mixing sequence

1 The order of pesticides must be accurately sequenced. The order of mixing of foliar fertilizers and pesticides is usually: micro-fertilizers, water-soluble fertilizers, wettable powders, water dispersible granules, suspending agents, micro-emulsions, water emulsions, water, and emulsifiable concentrates. (In principle, do not mix more than three kinds of pesticides.) Mix well with each other, and then add the next one.

2 Add water first and then add the medicine. When the two dilutions are mixed and mixed, it is recommended to add half a barrel of water to the sprayer and mix the first pesticide after mixing. Then, dilute the remaining pesticide in a plastic bottle, dilute it, pour it into the sprayer, mix it, and so on (if you want to be effective, don't be lazy).

3 Regardless of the mix of agents, it should be noted that “the current distribution should not be used for a long time”. Although the drug solution does not respond at the time of the dispensing, it does not mean that it can be stored for a long time. Otherwise, it will easily produce a slow reaction and gradually reduce the efficacy of the drug.

Pesticide Mixing Principle

● The combination of different pesticides with different pesticide-killing mechanisms can increase the effectiveness of control and delay the development of insecticide resistance.

● The pesticides with different poisoning effects include contact, stomach poisoning, fumigation and internal absorption. The fungicides have the functions of protection, treatment and internal absorption. If these agents with different prevention and control effects are mixed, they can be used together. Complementing each other will produce good control effects.

● Insecticides used in different insect states can be mixed and used as insecticides in different insect states to kill various insect pests in the field and kill them completely.

● Different types of pesticides with different time-use pesticides have a good effect of quick-effect control, but the effective period is short; some quick-effect control effects are bad, but they take a long time. Mixing such pesticides not only has good control effect after application of pesticides, but also has the effect of long-term control.

● Although synergistic agents used with synergists have no direct poisoning effect on pests and diseases, the use of pesticides in combination with pesticides can increase control effectiveness.

● When pesticides that act on different pests and diseases are mixed at the same time when several pests and diseases occur, using this method can reduce the number of spraying and reduce the working time, thereby improving the efficacy.

Precautions for Pesticide Mixing

Although there are many advantages in using pesticides, they should not be mixed randomly. Unreasonable mixing is not only useless, but also has the opposite effect. Mixed pesticides should pay attention to the following points.

● Does not change the physical properties

That is, no oil, flocculation, sedimentation, or discoloration can occur after mixing, and no phenomenon such as heat generation or bubble generation can occur. If the same powder, or the same as granules, fumigants, aerosols, can generally be mixed;

Between different dosage forms, such as wettable powders, emulsifiable concentrates, emulsions, suspensions, and water solvents, liquids that use water as the medium should not be used arbitrarily.

● Does not cause chemical changes

1 Including many pharmaceutical agents that cannot be mixed with alkaline or acidic pesticides. Carbamates, pyrethroid insecticides, thiram, dioscin, and other dithioamides under alkaline conditions such as Bordeaux mixture, lime sulfur, etc. Formic acid bactericides are prone to hydrolysis or complex chemical changes, thereby destroying the original structure.

2 Under acidic conditions, 2,4-D sodium salt, 2A 4 sodium chloride salt, amitraz, etc. will also decompose, thus reducing the efficacy.

3 In addition to acidity and alkalinity, many pesticides cannot be mixed with drugs containing metal ions.

4 Dithiocarbamate fungicides, 2,4-D herbicides and copper preparations can produce copper salts to reduce the efficacy.

5 Thiophanate-methyl and thiophanate-methyl can be complexed with copper ions and lose their activity.

6 Remove copper preparations, other preparations containing heavy metal ions such as iron, zinc, manganese, nickel and other preparations, be careful when mixing.

7 Lithosulphide mixed with Bordeaux mixture can produce harmful copper sulfide and also increase soluble copper ion content.

8 Propene, butachlor, etc. cannot be mixed with organic phosphorus and carbamate insecticides. Some chemical changes may cause phytotoxicity.

● Cross-resistance pesticides should not be mixed

For example, the bactericide carbendazim and thiophanate-methyl have cross-resistance. Mixing can not only delay the growth of the bacteria, but also accelerate the development of drug resistance.

● Biopesticides cannot be mixed with fungicides

Many pesticide bactericides have a lethal effect on biological pesticides. Therefore, microbial pesticides and bactericides must not be mixed.

Pesticide mixture recipe sharing

1 Kung Fu + Imidacloprid or Acetamiprid

Can prevent Lumbricus

2 Abamectin + 44% Propyl Chloride

Controlling rice and vertical locusts on rice, economical

3 Amateur salt + tebufenozide

It can be used for the control of night moth pests and has a long duration

4 Thiamethoxam, dinotefuran granules

Become a new ingredient to prevent bugs

5 Dinotefuran + Kung Fu

Prevent whitefly efficient and effective

6 kung fu + profenofos mass formula

Specific effects for underground pests

7 Alkaline salt + triflumuron

Prevention of rice leaf roller and fruit tree borer

8 Avid insecticide + Isocarbophos

Old formula - various pests for rice

9 Chlorpyrifos + Triazophos

It can prevent rice borers (triazophos in some areas)

10 Avi + Chlorantraniliprole + Pyridoxime

Rice full formula

11 Aziridine pyridoxine + butylthioimidacloprid/chlorpyrifos

Peach resistant locusts work well

12 Spirotetramat + Abamectin

Playing pear hibiscus effect is very good

13 Omethoate + Fenvalerate

Kill wheat aphid effect is not bad price is not high

14 Prochloraz + Iprodione

Prevention of leafy leaf spot and anthracnose disease

15 Organic Copper Preparation + Prochloraz + Iodine

Control cucumber spot disease economic benefits

16 Abamectin + Spirotetramat

It is absolutely no problem to control whiteflies, aphids and thrips

17 Alkaline salt + gallonitrile

Insect Kill

18 buprofezin/chlorpyrifos + spirotetramat

Resists insects, safe and efficient

19 Dimethomorphs + Multi-resistance Manganese Zinc

Prevention of white rust in spinach, melons and downy mildew, three days of dry spot

20 methional salt fluconazole + chlorocyanide

Hit the fruit tree heartworm, the effect is good

21 Anti-pertussis, epidemic conventional pharmaceutical + organic copper preparation

Control effect increased by more than 50%

22 Fluorosilicon + Organic Copper

Smear melon bacterial blight, healing effect is good

23 insecticides + chlorpyrifos

Kill the ginger heartworm effect lever

24 Azamycin / Azoxystrobin + Organic Copper

Prevent root diseases

25 Shenximycin + well wax bud

Treatment of Melon Blight and Blight

26 Ling Ling + Thiamethoxam

Bounce

27 Avi + ciprofloxacin

Leafhopper moth

28 ethoxyflorin + pendimethalin

Garlic field kill grass, broad and double, the best combination

29 Thiamethoxam + Bifenthrin

Irrigation to control mantle and earthworms

30 grams of bacillus + Bacillus subtilis

To solve the problem of recurrent paralysis

31 Chlorantraniliprole + Chlorpyrifos

The effect of controlling rice stem borer is very good

32 Alpha salt + tebufenozide

Beat beet, noctuid Spodoptera littoralis good effect

33 Hydratoxime + Hymexazol/Methylthiozolium

Rooting prevention and control of root diseases

34 Pyrazoxime Thiofuramide

Prevention of long period of persistence of citrus resin disease (skin disease)

35 Avi + Cilin/Triazotin + Biphenyl Well Fat

Treatment of fruit trees with high resistance to red and white spiders

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