In the prevention and control of pests and diseases, a single dose gradually fades out of the historical stage, in order to increase the effect of prevention and treatment, the mixed use of pesticides has been promoted and applied. The rational mixing of pesticides can improve the control effect, delay the development of resistance to pests and diseases, improve the control effect, reduce the dosage, and prevent the use of pesticides for different pests and diseases to reduce the number of applications, thereby reducing labor costs.
Pesticide mixing order
1 The order of pesticide mixing should be accurate. The order of foliar fertilizer and pesticides is usually: micro-fertilizer, water-soluble fertilizer, wettable powder, water-dispersible granules, suspending agent, microemulsion, water emulsion, water, and emulsifiable concentrate. (In principle, do not mix more than three kinds of pesticides), mix them thoroughly with each addition, and then add the next one.
2 After adding water and adding medicine, for the second dilution and mixing, it is recommended to add half a bucket of water to the sprayer, and then add the first pesticide and mix. Then, dilute the remaining pesticides with a plastic bottle, dilute them, pour them into the sprayer, mix them, and so on (if you want to work well, don't be lazy).
3 No matter what kind of medicine is mixed, you should pay attention to "currently available, not suitable for a long time." Although the drug solution does not respond when it is just dispensed, it does not mean that it can be left for a long time, otherwise it will easily produce a slow reaction and gradually reduce the drug effect.
Principle of pesticide mixture
â— Mixtures of different pesticides with different poisoning mechanisms can improve the control effect and delay the development of resistance to pests and diseases.
â— Toxicity of different pesticides insecticide mix A tag, stomach poison action, fumigation, uptake, etc., fungicides protective, therapeutic, effect the absorption, etc., if these agents will have a mix of different control action may be Replenishing each other will produce good control effects.
â— Insecticides that act on different insect states can be used as a mixture of insecticides for different insect states to kill various pests in the field, and kill insects thoroughly, thereby improving the control effect.
â— There are different types of pesticides mixed with pesticides. The quick-acting control effect is good, but the effect period is short; some quick-acting effects are poor, but the action time is long. The combination of such pesticides not only has good control effect after application, but also plays a long-term prevention and treatment role.
â— Mixing synergist with synergist has no direct poisoning effect on pests and diseases, but it can improve the control effect when mixed with pesticides.
â— When pesticides that act on different pests and diseases are mixed with several pests and diseases at the same time, this method can reduce the number of spraying and reduce the working time, thus improving the efficiency.
Precautions for mixing pesticides
Although there are many advantages to mixing pesticides, it is forbidden to mix them at random. Unreasonable mixing is not only useless, but also has the opposite effect. Pay attention to the following points when mixing pesticides.
â— Does not change physical properties
That is to say, after mixing, there is no occurrence of oil slick, flocculation, sedimentation or discoloration, and no occurrence of heat generation or bubble generation. If the same powder, or the same granules, fumigants, aerosols, generally can be mixed;
Between different dosage forms, such as wettable powder, emulsifiable concentrate, concentrated emulsion, suspension, water solvent and the like, the liquid agent is not suitable for mixing.
â— Does not cause chemical changes
1 includes many agents can not be mixed with alkaline or acidic pesticides, under alkaline conditions such as Bordeaux mixture, stone sulfur mixture, carbamate, pyrethroid insecticide, thiram, dexame ring and other dithio amino groups Formic acid fungicides are prone to hydrolysis or complex chemical changes that destroy the original structure.
2 Under acidic conditions, 2,4-D sodium salt, 2 methyl 4-chloro sodium salt, amitraz and the like are also decomposed, thereby reducing the drug effect.
3 In addition to acid and alkali, many pesticide varieties cannot be mixed with drugs containing metal ions.
4 dithiocarbamate fungicides, 2,4-D herbicides mixed with copper formulations can produce copper salts to reduce the efficacy.
5 thiophanate-methyl and thiophanate 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, etc., should be used with caution.
The combination of 7 stone sulphur and Bordeaux mixture can produce harmful copper sulphide and also increase the soluble copper ion content.
8 Enemy, butachlor and the like can not be mixed with organophosphorus and carbamate insecticides, and some chemical changes may cause phytotoxicity.
â— Pesticides with cross-resistance should not be mixed
For example, the fungicide carbendazim and methyl thiophanate have cross-resistance. Mixing not only does not delay the development of resistance to pathogens, but accelerates the development of drug resistance, so it cannot be mixed.
â— Biopesticide cannot be mixed with fungicides
Many pesticide fungicides are lethal to biological pesticides. Therefore, microbial pesticides and fungicides cannot be mixed.
Pesticide mixed formula sharing
1. Kung Fu + imidacloprid or acetamiprid
Can prevent green blinds
2, avermectin + 44% propanine
Use rice to control rice vertical and aphids on rice, economical
3, a vitamin salt + tebufenozide
Can be used for the control of nocturnal moth pests, long-lasting effect
4, thiamethoxam, dinotefuran granules
Become a new ingredient in the prevention of bugs
5, dinotefuran + kungfu
Effective and effective in controlling whitefly
6, Kung Fu + profenofos public formula
For underground pest effects
7, a vitamin salt + killing urea
Control of rice leaf roller, fruit tree borer
8, Avi · insecticide single + amphetamine
Old formula - various pests against rice
9, chlorpyrifos + triazophos
Can prevent rice borer (disabling triazophos in local areas)
10, Averm + chlorantraniliprole + ethidine pyridone
Rice full-fledged formula
11. Alkidine pyridone + butyl sulfide · imidacloprid / chlorpyrifos
Peach tree resistant mites work well
12. Spirotetramat + avermectin
The effect of playing pear hibiscus is very good.
13. Omethoate + fenvalerate
The effect of killing wheat mites is not good.
14, prochloraz + iprodione
The effect of controlling leaf spot and anthracnose of leafy vegetables is great
15, organic copper preparation + benzimidate + iodine solution
Prevention and treatment of cucumber target spot disease
16, avermectin + spirotetramat
It is absolutely no problem to prevent whitefly, mites and thrips.
17, a vitamin salt + insect nitrile
Worm double kill
18, buprofezin / chlorpyrifos + spirotetramat
Safe and efficient against beetles
19. Dimethomorpholine + polyclonal anti-manganese zinc
Prevention of water spinach white rust, melon downy mildew, three days of dry spots
20, a vitamin salt · hexaflumuron + cyanide
Beat the fruit tree heartworm, the effect is good
21, anti-fond mildew, epidemic conventional agents + organic copper preparations
Increased control effect by more than 50%
22, fluorosilazole + organic copper
Applying melon blight, it has a good healing effect
23, insecticide single + chlorpyrifos
Killing ginger and heartworm effect lever
24, refined A · carbendazim / refined A · azoxystrobin + organic copper
Prevention of root diseases
25, Shen Xiamycin + well wax bud
Treatment of melon blight and blight
26, Qi Ling + thiamethoxam
Beat the jumper
27, Avi + chlortetracycline
Loose leaf moth
28, oxyfluorfen + dipentazone
Garlic field blocks small grass, Woku double and double, the best combination
29. Thiamethoxam + bifenthrin
Irrigation and root control
30, Captan + Bacillus subtilis
Solve the disease
31, chlorantraniliprole + chlorpyrifos
Good control of rice stem borer
32, a vitamin salt + tebufenozide
Playing beet, night moth, Spodoptera litura, works well
33, Hydratemycin + carbendazim / methyl sulfide - carbendazim
Rooting to prevent root diseases
34. Pyraclostrobin and Thioflavamide
Prevention of citrus resin disease (sandosis) has a long-lasting effect
35, Avi + 哒螨 Ling / triazole tin + biphenyl acid grease
Treating fruit trees with high resistance red and white spiders
More pesticide knowledge , please pay attention to China Pesticide Network
(Source: Micronong era)
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