How to prevent and control pests
"The natural selection of the world, the survival of the fittest" is an unchanging survival criterion in the natural world. The targeted selection of pesticides has saved some resistant pests, and as the resistance of pests increases, the amount of pesticides continues to increase. In this cycle, it enters a vicious circle without ending. Many farmers are deeply touched, and now the pests are getting more and more difficult to treat.
How to prevent these resistant pests?
Black-headed owl
This kind of cockroaches has caused garlic and leeks in many places to be close to the harvest. There are a lot of special effects of small manufacturers and small manufacturers. The feedback results are not ideal. Even in many areas, farmers are still using some banned organophosphorus pesticides in a sneaky manner, and the control effect is still not satisfactory.
At present, various formulations have been tried, and the maximum flow is dinotefuran, clothianidin, avermectin, chlorpyrifos, phoxim, chlorfenapyr, chlorfenapyr, and beta-cypermethrin used in combination. Cyhalothrin, cypermethrin, etc., are also useful in combination with other products, such as imidacloprid, acetamiprid, and thiamethoxam.
Root knot nematode
Root knot nematodes are very serious in many vegetables, field crops and fruit trees. At present, the most widely used are avermectin, emulsifiable concentrate, water emulsion, granules, application, ditch application, acupoint application, and rushing. It is more economical and uses a lot. It is precisely because of this, after years of use, the resistance is also very obvious. Another reason is that avermectin is difficult to displace in the soil, which makes it more and more ineffective against nematodes.
Thiazolidine is a product that is currently calling for a higher level of avermectin. In addition to the first granules, major manufacturers are gradually developing single-agent and mixed-water emulsions, emulsifiable concentrates, solutionable agents, etc. Liquid dosage form. At present, a small number of regions have reported resistance, but since the cost has just been reduced, it has not been widely used, and the resistance has not shown a too serious trend.
Fluopyram is a product that has not yet been reacted and resistant. Personally, it should be the reason why the cost is too high, and not many farmers are willing to use it repeatedly.
Whitefly
Whitefly is one of the main media for the transmission of viral diseases. It can damage a variety of vegetables and even broad-leaved crops. In many cases, if the whitefly is not in place, the spread of viral diseases is almost inevitable.
At present, there seems to be no particularly good product for a single dose. For some time, the mixture of nitenpyram and pymetrozine has worked well, but the resistance has not been reduced until now.
However, there is a small method of using thiamethoxam water to disperse granules, and put a little root in each vegetable to basically control the sucking mouthparts pests such as whitefly, thrips and aphids throughout the growth period.
Lepidopteran pest
Lepidopteran pests mainly include Plutella xylostella, Pieris rapae, Beet armyworm, Spodoptera litura, Helicoverpa armigera, etc. The resistance of this kind of pests is absolutely obvious to all. The most common Kang Kuan products are based on this situation. of.
From pyrethroids to avermectin, avidin, and now the most used chlorantraniliprole, the resistance is already very serious, can not be said to have no effect, but the dose is also several times the initial dose Even dozens of times.
In the prevention and control of such pests, the current patented tetrachloramide reflects a good effect, and the non-patented indoxacarb can control pests resistant to chlorantraniliprole.
Jumping armor
The resistance of the jumping armor is very large. Although many drugs have certain control effects, they are not particularly useful. At present, in terms of single agent, it seems that the effect of malathion and fipronil is relatively good, and the rest are all kinds of compounding. The growers reflect that it is good to match the effect of phlegm.
What should I do against drug performance?
The highly resistant pests listed above are only the tip of the iceberg. It is true that the emergence of pest resistance is not a one-off, but the unreasonable method of application is undoubtedly accelerating the process, so that the evolution of pest resistance is always faster than the development of new drugs. So, how to deal with the growing problem of drug resistance?
Rational use of drugs
Scientific and rational drug use is undoubtedly the most powerful measure to reduce drug resistance. It can be achieved by rotation of drugs, mixed drugs, intermittent use or deactivation of pesticides, addition of synergists, and diversified application methods.
Combined with physical and biological control
Physical control mainly includes high temperature suffocating shed disinfection, clearing garden, pruning, covering method (such as mulch film, insect net, etc.), yellow board trapping, insecticidal lamp trapping, sugar water trapping, trapping ball trapping and so on. Biological control mainly includes pest control, insect control, and other beneficial animals to control pests.
Through the combination of chemical control and physical control, combination of chemical control and biological control, and coordinating the rule, while achieving good control effect, the delay of drug resistance can be minimized.
Research and development of new drugs
It is inevitable that a drug will be resistant after a long time, so it is very important to speed up the research and development of new drugs. R & D work, although there are professional people to do, growers need to extend the use of new drugs as much as possible.
Numbered pest name recommended agent
1 resistant aphid fluramide cyanamide, sulfluramid, pymetrozine or spirotetramat
2 Resistant humectin + acetamiprid, spirotetramat + imidacloprid, bifenthrin + thiamethoxam
3 白粉虱ethyl spinosyn + acetamiprid, spirotetramat + imidacloprid, bifenthrin + thiamethoxam
4 甲甲哒螨çµ+ acetamiprid, pymetrodin, thiazide diltiazem
5 locusts, thiazolone, tetrapyridazine
6 Beet armyworm, chlorantraniliprole, tetrachloromethaneamide, insect nitrile
7 chlorfenapyr, nitenpyram, thiamin, matrine
10 Green blind fenvalerate, acetamiprid + bifenthrin
12 leaf miner avermectin + chlortetracycline
13 钻 肼 肼 肼, chlorantraniliprole, carbaryl salt, indoxacarb, Bacillus thuringiensis
14 snail tetraacetaldehyde
16 scorpion mites
17 underground pest phoxim or chlorpyrifos granules prevention, cyfluthrin, carbaryl salt + chlorpyrifos spray irrigation
18 Bemisia taboo, pymetrozine, nitenpyram, acetamiprid, spirotetramat
19 rice blast chlorpyrifos granules
20 caterpillar hydrazide
More pesticide knowledge , please pay attention to China Pesticide Network
(Source: Dahe Net)
This bracelet is soft pvc rfid wristband, in sfot pvc material, good experience in taking on your wrist, with adjustable fitting. Weather and moisture proof!
There have kinds size in option, 210mm for kids, 250mm for youngers and women, 245mm and 300mm for man.
All colors in option for the pvc rfid wristband, green, black, purple, yellow, red etc, do we custom color too.
This is very popular using for one time using event, hospital, and one time ticket and so on.
These PVC Disposable RFID Wristbands features an ANY RFID chip of usable space and can be made read-only. Ideal for making your next event or party a memorable experience!
Disposable RFID Pvc Wristbands can be embedded 125Khz chips like Tk4100, EM4200, T5577, EME44305 and Hitag etc.
Disposable RFID PVC Wristbands can be embedded 13.56MHZ chips like Ntag213, NTAG215, NTAG216, Mifare Classic, Desfire EV2/EV2, Plus X, Plus SE, ICODE, Ultralight, TI 2084, Topaz512, and F08 etc.
Pvc Disposable RFID Wristbands can be embedded 860MHZ-960MHZ chips like Alien H3, Alien H4, U-Code Gen2 and Impinj M4/M5 etc.
Special project? PVC Disposable RFID Wristbands? If you need more than 500 wristbands, you'll receive an instant discount!
Besides, SunwayRFID also provide Fabric Wristbands , rfid silicone wristband, RFID Keychain , RFID Tag and rfid cards too, one-shop can meet all your need about RFID. Price, customer service, and quality always at our first place.
PVC Disposable RFID Wristbands
Pvc Disposable RFID Wristbands,RFID Pvc Wristbands,RFID Pvc Wristbands,RFID Pvc One-Time Using Wristbands
Sunway Smartech Co.,LTD , https://www.sunwayrfid.com