Aphids are one of the main pests of crops, with many species, many generations, rapid reproduction and serious harm. By sucking the sap of the crops, the crops are weakened and withered, and at the same time, aphids can also spread a variety of viruses, causing greater losses. Due to the small size of aphids, rapid reproduction, and unreasonable drug use, the resistance develops faster and faster.
living habits
Aphids are harmful all year round and have strong reproductive capacity. They multiply the fastest at temperatures around 29°C. It can reproduce 10 to 30 generations a year, and the phenomenon of overlapping generations is prominent. Female aphids are born fertile. And aphids don’t need males to become pregnant (ie, parthenogenetic).
Mainstream formula for resistant aphid
1.Pymetrozine · Dinotefuran
In addition to having contact killing and stomach poisoning effects, it also has a good nerve agent and rapid antifeedant effect. After aphids and other piercing-sucking pests eat and inhale the plant juice with flonicamid, they will be quickly prevented from sucking the juice, and no excrement will appear within 1 hour, and eventually die of starvation.
2.Flonicamid · Acetamiprid
Because its mechanism of action is different from that of conventional insecticides, it has special effects on aphids that are resistant to organophosphates, carbamates and pyrethroids. The validity period can reach more than 20 days.
3.Flonicamid·Thiamethoxam
For foliar spray and soil irrigation and root treatment. It is quickly absorbed by the system after spraying, and is transmitted to all parts of the plant, which has a good control effect on piercing-sucking pests such as aphids, planthoppers, leafhoppers, and whiteflies.
4.Flonicamid · Dinotefuran
It has the characteristics of contact killing, stomach poisoning, strong root system absorption, high quick effect, long lasting effect period of 4-8 weeks (theoretical lasting effect is 43 days), wide insecticidal spectrum, etc., and has excellent control effect on piercing and sucking mouthpart pests .
5.Spirotetramat·pymetrozine
It has a unique two-way conduction function, can effectively reach all parts of the plant body, has a wide insecticidal spectrum, and has high activity on eggs, nymphs and adults. Up to 25 days or so.
6.Spirotetramat·Avermectin
It has good systemicity, can conduct bidirectional conduction through the xylem and phloem, and has special effects on pear psyllium and peach aphid; the effect is quick and the duration of effect is long, and the death of adult insects can be seen in 3 to 5 days, and the duration of one application can reach 25 It can effectively reduce the frequency of medication and save time and labor; good compatibility, suspension dosage form, neutral pH value, can be mixed with most preparations on the market, no need to worry about safety issues; the mechanism of cooperation of the two components It can effectively reduce the risk of pesticide resistance; the co-toxicity coefficient for insects and mites is high, and the compounding synergy is significant. Time-saving, labor-saving, and long-term prevention effect.
Post time: Jun-13-2022