AphidsWhitefliesYesVegetablesThe most common on cropsPests, they are highly reproductive,Antimicrobial resistancestrong, serious harm to crops. AphidsIt reproduces more than 20 to 30 generations a year, and in the hot and dry season, they reproduce faster, producing a new generation in just 4 to 5 days. AphidsNot only can it passSexual reproductionReproduction of offspring can also be made more diverse through parthenogenesis. AphidsAdults and fertilized eggs overwinter in weeds and tree crevices, hatch as godmothers in spring, and reproduce parthenogenesis for 2 to 3 generations. In early summer, winged aphids migrate to herbaceous cropsVegetables, weeds and other secondary hosts, parthenogenetic breeding for several generations to more than 20 generations, and in late autumn, winged female aphids and male aphids migrate from the second host to the main host again for wintering.
WhitefliesThe harm to crops is mainly manifested in three aspects: first, directly ingesting crop juice, obtaining nutrients by sucking crop juice, and destroyingPlantsorganizational structure; Secondly, they are indirect, they will secrete honeydew during activity, breed other fungi, and form coal stains on the surface of the leaves, hinderingPlantsofPhotosynthesis；Finally, they can also transmit viruses that can infect crops with viral diseases.
AphidsWhitefliesetcPestsThe main reasons why it is difficult to effectively control are as follows: first, they have a wide distribution range, which can harm more than 100 kinds of crops, and the distribution range is very wide; secondly, they have a strong migration ability and can migrate long distances under suitable temperature conditions; Thirdly, they reproduce quickly, and in summer and autumn under suitable environmental conditions, they can reproduce a generation in 5 or 7 days, and the reproduction rate is surprising; In addition, they are resistant to pesticidesAntimicrobial resistanceEnhanced, commonly used pesticides are easy to produce after more than 3 timesAntimicrobial resistance, resulting in poor prevention and control effect; Finally, the traditional control method is to see the insect and treat the insect, see the disease and treat the disease, and waitPestsIt is often difficult to completely control the prevention and control when it occurs severely.
In the actual field control process, it was found that 3% was used through experimentsThiamethoxamSoil treatment is prevention and controlAphidsWhitefliesIso-stingPestsThe most economical and effective method. ThiamethoxamIt is a neonicotinoid insecticide, which has contact killing and stomach toxicity effects, and is stinging and suckingPestsIt has a good insecticidal effect. After it is applied to the soil, it can exist in the soil for a long time, and is absorbed by the roots of the plant, and is transported upward to various parts through the xylem in the plant, and can stay in the plant for a long time, degrade slowly, and continue to kill insects. ThiamethoxamSuitable for a wide range of crops such as:Wheat, corn, cotton, peanuts,SoybeansCucumbersWatermelon, pumpkin, winter melon,TomatoesEggplantCayenne peppersCelery, cabbage, etc.
1.Sashi: YesWheatBefore sowing, use 3% per muThiamethoxamSlow-release granules 2 3 kg, mix well with organic fertilizer, evenly spread and then sowing. ThiamethoxamSustained-release granules are able to release the effect of the drug for a long time, rightAphids, planthoppers and other stinging and sucking typesPestsIt has a continuous prevention and control effect, and the effective period can reach more than 120 days.
2.Acupuncture: YesTomatoesCayenne peppersEggplantCucumbersWatermelonand other crops that need to be transplanted with seedlings, 3% can be used at the time of sowingThiamethoxam1 2 kg of slow-release granules were mixed with 15 kg of organic fertilizer, and hole application was carried out when transplanting. This allows for long period of controlAphids, thrips,WhitefliesetcPestsof occurrences.
3.Soil Treatment: InVegetablesIn places with a large number of soil hosts, such as fields or orchards, soil treatment can be carried out in spring or autumn. will3% thiamethoxam suspended500 times of the floatant liquid is mixed into the water, 100 liters of water per mu are evenly sprayed on the ground, and then the soil is loosened with a shovel so that the liquid can be mixed with the soil. This allows for effective controlAphidsWhitefliesetcPestsReproduction in the soil.
4.Irrigation treatment: for orchards, fieldsVegetablesand other crops that need to be irrigated frequently, you can3% thiamethoxam suspended500 times of floatant liquid is mixed into irrigation water, 2000 liters of water per mu, and evenly irrigated on the ground. This can be avoided by being absorbed by the root systemPestsHarm to the plant.
1.Use strictly in accordance with the recommended dosage and avoid excessive use to avoid adverse effects on the crop.
2. Before use, it is necessary to fully stir well to ensure that the liquid is evenly sprayed or irrigated to the ground.
3.After use, pay attention to observe the growth of crops, and adjust the dosage or stop using in time if there is any abnormality.
4. Pay attention to self-protection during use and avoid direct contact with thiamethoxam.
5. After use, it is necessary to strictly follow the specified safety interval to ensure food safety.
6. It is strictly forbidden to mix thiamethoxam with acid pesticides to avoid adverse reactions.
In short,ThiamethoxamIt is an efficient and economical soil treatment agent that can be effectively controlledAphidsWhitefliesIso-stingPestsIt has a wide range of application prospects. In actual control, it needs to be different according to different crops and differentPestsThe specific situation of the appropriate use method and dosage is selected to achieve the best prevention and control effect. In addition, there is a need to strengthen theThiamethoxamresearch and promotion to improve the prevention and control effect and reduce environmental pollution.