As the world's largest pest insecticide chlorine benzamide, it has an efficient and broad-spectrum characteristic in the control of crop pests, which can control most chewable mouthpartic pests, especially Lepidoptera pests, and has a good control effect on lepidoptera, moth family, moth family, moth family, wheat moth family, rotissidae, powder moth family, fine moth family, etc., and has a high activity for some Coleoptera, Diptera, etc. In the control of pests, it is suitable for a wide range of crops, can be foliar treatment, seed treatment or soil treatment, and is suitable for the control of soybeans, rice, fruits and vegetables, corn, cotton, sugarcane, lotus root, russet, potato and other crop pests. Safe for fish, shrimp and crabs when used, especially suitable for use in farmed rice fields, control borers, rice longitudinal leaf borer and other pests, now several main use methods are introduced as follows:
The borers that prevent and control rice borers are dilated borer, three borers, rice longitudinal leaf borer and large borer, etc. The main agents used in the past are insecticidal bis, triazoliphos, acetylmethaphos, chlorpyrifos, rice abundance, avermectin and other agents, but from the effect of controlling rice borers with chlorpyrifosbenzoamide in recent years, they have shown the advantages of convenient use and long effectiveness, which have received widespread attention. The 4% chlorellox benzamide granules used in the production, the use of the sprinkling method to control the dicarbonate borer and the rice longitudinal curl leaf borer, because the drug has strong systemic properties, can be quickly absorbed by the crop, and through the xylem in the crop body from bottom to top to various parts and tissues, about a week before the borer damage, in the paddy field sprinkled with chlorhex benzamide granules, after being absorbed by the rice root, the drug can be transmitted upwards to the stem and leaves, the effective period is up to 1 month, and the shallow water layer of 3 to 5 cm is maintained in the field for about 5 to 7 days when the drug is used. The control of rice borer can also be used 200 g / l chlorellox benzamide suspension agent 10 ml, in the dimorphic borer borer peak period 7 days before the peak period of the drug, the effect is equivalent to the use of 0.4% chloranthropoxybenzoamide granules per mu 600 ~ 700 g mixed with fine soil 10 kg, 35 days after the drug on the dihua borer prevention effect is comparable.
The control of corn borer corn borer is one of the most difficult pests in corn production. The occurrence period is long, and the general effect of the drug after the damage of the borer is not ideal. The use of chlorhexenal benzamide to control corn borer, good safety of corn, with good internal absorption, can be transmitted upward along the xylem, protect the new leaves and inflorescences, and the effective period of up to 1 month, can protect the new stems and leaves and corn ears for a long time. The generally used dosage form is 200 g / L chlorhexensis benzamide suspension, the prevention and control of corn borer per mu with a preparation of 30 to 50 ml, in the corn horn mouth period to add enough water to spray the drug to the top of the corn stem, the medicinal effect is better. Protect the new stems and leaves of corn and corn ears, spraying at the ear extraction stage of corn should also pay attention to the focus of spraying the drug to the base of the ear, which is conducive to the drug being transfused along the corn panicle axis, playing a better treatment and protection effect, and chlorhexabenzylamide is very toxic to humans and animals (micro-toxic), which can be used with confidence in fresh corn.
The area of lotus root planted in low-lying rice fields and shallow lakes near the shore has increased, and the growth of lotus roots generally reflects the heavy harm of maggots and affects the growth of lotus roots. Ground maggots are the larvae of root-eating goldenrods, and the root-eating goldenrods of lotus root are also known as long-legged water leaf beetles, rice root leaf beetles, root-eating maggots and so on. Root-eating goldenrod adults are spindle-shaped green-brown small beetles with a metallic luster, with a body length of about 6 to 9 mm; the eggs are oblong, about 1 mm long, slightly flattened, the surface is smooth, milky white at the time of birth, and the yellowish brown color when hatching; the eggs are often 20 to 30 grains gathered into pieces, covered with white transparent colloidal substance; the larvae are 9 to 11 mm long, white maggots, small heads, hypertrophic thoraxes, slightly curved, 3 pairs of pectoral feet, no abdominal feet. The larvae overwinter outside the roots and joints of the lotus root and begin to be harmful from April to May. Adults feather in the soil and surface to lay eggs on the leaf surface of lotus leaves, long-leaves, etc., or on the back of the leaves of the eye vegetables. Eggs are laid in July, and after the larvae hatch from late July to early August, they are water-drilled into the soil. The larvae suck sap on the underground stem, causing the upper leaves of the ground to be small and yellow, which directly endangers the new lotus in the later stage, forming many insect spots on the lotus, affecting the yield and quality of the lotus. Larval hazards can also blacken the roots of the lotus root, as do adults and newly hatched larvae. For the control of root goldenrod insects, use 20% chlorellosis benzamide suspension agent or 0.4% chlorofuran benzamide granules (0.4% chloranthroid benzamide granules 600 to 700 grams, mix dry fine soil 10 to 15 kg, made of poisonous soil), in the adult spawning peak period and larval hatching peak drug, the effect is good, there is no impact on the quality of lotus root, because the fish and shrimp are safe and non-toxic, the application prospects are good.
Prevention and control of cowpea borer cowpea also known as carob, cowpea borer is the most difficult pest in the production of beans, the harm time is long, once the drill moth medicine effect is not good, and easy to cause pesticide residues. In recent years, vegetable farmers have used chlorhexenopenamide to control the bean borer of cowpea, which has achieved good results, a long effective period, safe for beans, and will not bring residual pollution, so it is welcomed by vegetable farmers. When using, grasp the cowpea at the beginning of flowering and the flowering stage of the drug, with 20% chlorellobethoxybenzoamide 6000 times liquid spray, 7 days after the drug to check its prevention effect of up to 88%, the effect is obviously better than other pesticides. In the carob growth period, the general drug is used twice, which can basically control its harm, and it is safe for the carob, the safety interval is only 1 day, it will not bring pollution to the carob, and it can be used with confidence.
This journal special article, if you need to reprint or cite please indicate the source, thank you for your cooperation! For more highlights, see Pesticide Market Information magazine.
Click "Read the original article" to enter the "Pesticide Market Information" media official website "China Pesticide Network", there are more wonderful content waiting for you to see!