In the rainy season, you will know how to apply these pesticides.
Rainy season rain will seriously reduce the control effect of pesticides . To this end, many farmers friends are guilty of applying pesticides. To help farmers, let us introduce some tips for applying medicine in the rainy season. First, medication choice 1. Systemic pesticides can enter the plant through roots, stems, leaves, etc. of plants and are transmitted to other parts. Such as tricyclazole, raining 1 hour after spraying, has no effect on the efficacy; Thioflavin, carbendazim, triadimefon, etc. with rapid conduction, as well as herbicide acetochlor, quizalofop, grass Glyphosate, etc., after several hours of application, is absorbed into the tissues by the plants, and the agents are less affected by rainfall. Another example is dexamethasone, chlorfenapyr, high-efficiency flumethrin, etc. Although it has no conductive effect, it has strong penetrating power on the surface of the crop, so it is also suitable for rainy season application. 2, improve the application method According to the performance of the drug, suitable application methods, such as systemic insecticides , can be used to avoid rainwater scouring and prevent pesticide loss. The appropriate application method is adopted according to the occurrence and activity of pests and diseases. The pests, such as rice leaf roller, are selected to be applied before and after dusk, so that the agent quickly infiltrates into the rice plant tissue, and the pests die in 2-3 hours. 3. Use rain-tolerant pesticides Such as Bordeaux mixture, basic copper sulfate, copper rosinate, Jinggangmycin, chlorpyrifos, etc., 2-3 hours after application, even if it encounters moderate rain, it does not affect the application effect. 4, increase the synergist in the liquid When using the pharmaceutical liquid, add some washing powder or saponin, etc., which can enhance the adhesion of the pesticide on the crop and the surface of the pest. Even after the application, it is not easy to wash the drug even if it encounters moderate rain. Add appropriate amount to the powder. Viscosity of mineral oil or vegetable oil, soy flour, starch, etc., can significantly improve the adhesion, add water-soluble adhesives in wettable powders or suspensions, such as various animal bone glue, gum, waste honey, etc., application After the water is volatilized, the powder adheres firmly to the surface of the application object and is resistant to rain. 5, the selection of microbial active pesticides Microbial pesticides in continuous rainy weather but will improve efficacy. For example, fungi, bacterial pesticides, in the case of high temperature and high humidity, the breeding speed will be accelerated, and the insecticidal effect will be improved. Commonly used microbial pesticides include Bacillus thuringiensis-781, Beauveria bassiana, and Penicillium spp. 6. Use quick-acting pesticides The quick-acting pesticide can kill the pests in a short period of rainy period, thus avoiding the "chronic pesticide" reducing the effect of the leaching of the pesticide due to the rain, such as killing the crop after a few minutes after the anti- èšœAphids; phoxim, omethoate, isoprocarb and pyrethroid pesticides have a strong contact killing effect, killing a large number of pests within 1-2 hours after application. Second, various weather response 1. Heavy rainfall hazard After rain, flooding inhibits root growth and absorption, leaves are wilting, yellowing, slow growth, and even large areas of seedlings die. The countermeasures are: pay attention to clearing the irrigation and drainage ditches; timely draining the rain after rain, cleaning the silt on the leaves; shallow cultivating, slashing, venting and diverting; promptly applying quick-acting package nutrition, such as Jiamei dividend, gold spot, brain platinum, supplementing soil nutrients Loss, restore root growth, weaken and strengthen; when more than 60% of dead seedlings, re-broadcast or replant other crops. 2, wind disaster lodging hazard The seedlings fall and break, causing the seedlings to be covered by mud and damage to the leaves; the soil is tight, the humidity is high, and the insects affect the root system, resulting in small roots and shallow roots, which are prone to root failure. The countermeasures are: deep soil loosening and breaking the knot; the lodging during the seedling period is often accompanied by more rain and damage, and timely drainage after the disaster. Strengthen management, such as cultivating soil, cultivating, breaking the knot, and adding Jiamei Gold Point to improve plant growth ability. 3, hail damage The plant is directly damaged; the surface layer of the soil is compacted, the ground is knotted; and the stem and leaf are infected after the wound. The degree of damage depends on the size and duration of the block. The countermeasures are: strong recovery ability after the seedling period, as long as the growth point is not destroyed, it can resume growth and deliberately destroy the species. Timely cultivating loose soil, breaking the knot, increasing soil permeability; chasing 800 times liquid Jiameihongli roots and irrigating roots; new leaves growing after the leaves are sprayed 800 times liquid Jiamei brain platinum or gold points 2-3 times to promote new Leaf growth. Third, timely and early prevention of pests and diseases 1. Pay attention to timely prevention and control of vegetable pests and diseases in the rainy season. The temperature in the Meiyu period is suitable and the humidity is high, which is beneficial to the occurrence and prevalence of vegetable diseases and insect pests such as bean wild cockroach, yellow stripe, cockroach, soft rot, downy mildew, anthracnose, and epidemic diseases. Promptly carry out chemical control. For the control of bean wild mites, 5% chlorantraniliprole suspension 1500 times solution, or 20% flubendiamide hydramide water dispersion granule 2500 times solution, or 60 g / liter ethyl spinosyn suspension agent 2000 times solution spray The beginning of flowering to full bloom is the best period for prevention and control. After every 7-10 days, it is continuously controlled 3 times. The focus is on bud, flower, tender pod and ground flower spray. The effect of spraying in the morning and evening is good. The control of yellow stripe beetle and eucalyptus can be sprayed with 240 g/liter of cyanofluridazole suspension 800 times solution or 20% acetamiprid WP 3500 times solution at the initial stage. 2, beware of crops susceptible to disease after the rain Recently, many provinces in the country have experienced continuous rainfall, with long rainy seasons and high rainfall intensity, especially in floods in many parts of the South. Such climatic conditions have created favorable conditions for the occurrence of crop diseases. Experts reminded that after flooding, we should focus on the prevention and control of rice blast, corn size spot disease and other diseases, actively respond to, actively control, and maximize the control of crops susceptible to disease after rain. Rice blast is an important disease in rice production. In recent years, with the expansion of planting area and accumulation of bacterial sources, rice blast in the early stage of rice has aggravated. This year, the rain comes early, the rainy season is more, and the temperature is not high. Such climatic conditions can easily cause the occurrence and prevalence of rice blast. The National Agrotech Center's Pest and Disease Forecasting Office predicts that in July and August, rainfall in the southwestern part of the country, Jianghan, Jianghuai, and southeastern China will be more favorable, which is conducive to the occurrence and prevalence of rice blast. Zhao Zhonghua, a researcher at the National Agricultural Technology Center's Prevention and Control Department, said that the lack of sunshine and high temperature in the rainy days has created favorable conditions for the occurrence of crop diseases. Rice with short growth period and poor disease resistance is prone to rice blast. (Source: Tianbao Agricultural Technology Service Platform) Exit Sign,Exit Light,Exit Signage,Exit Sign With Lights NINGBO JIMING ELECTRIC APPLIANCE CO., LTD. , https://www.jimingemergencylight.com