Organophosphate highly efficient and low toxic Insecticide diazinon
What is diazinon (333-41-5)?
Diazinon is a broad-spectrum organophosphorus Insecticide. Cas333-41-5 is miscible with ethanol, acetone and xylene, gradually decomposes in water or dilute acid, is stable in dilute alkali, decomposes quickly in strong alkali, and is highly volatile. Diazinon is a highly efficient and low-toxic organophosphorus insecticide. It mainly inhibits the synthesis of acetylcholinesterase in pests, thereby completely killing them. It can not only be used as a foliar spray to control Lepidoptera, Homoptera, etc. It can also be used for seed dressing and soil treatment to control underground pests.
The insecticide diazinon is a highly efficient, broad-spectrum, low-residue organophosphorus insecticide and acaricide with contact killing, stomach poisoning, fumigation and certain systemic effects. This agent can be widely used on a variety of crops such as rice, wheat, cotton, and citrus. It has good control effects on most pests, has a lasting effect of more than 30 days, is low in toxicity, and is environmentally friendly.
Diazinon (333-41-5) mechanism of action
The Insecticide diazinon is a highly efficient and low-toxic organophosphorus Insecticide. It mainly kills pests by inhibiting the synthesis of acetylcholinesterase in the pests. It can not only be sprayed on leaves to control Lepidoptera and Homoptera. It can also be used for seed dressing and soil treatment to prevent and control underground pests.
Diazinon (333-41-5) Chemical Properties
The pure product of the insecticide diazinon is a colorless oily liquid with a slight fragrance. b.p.83～84℃,/26.66×10-3Pa125℃/133.32Pa, vapor pressure 1.867×10-2Pa (20℃), refractive index n20D1.4981, relative density 1.116～1.118 (20℃). It is miscible with acetone, ethanol, and xylene, and can be dissolved in petroleum ether. Its solubility in water at room temperature is 0.004%. It is unstable above 50℃, unstable to acid and alkali, and stable to light. It will slowly hydrolyze in water and dilute acid. A small amount of moisture during storage can promote its decomposition and turn into highly toxic tetraethylthiopyrophosphate. The industrial product is light brown liquid.
Diazinon (333-41-5) toxicity
The acute oral LD50 of the Insecticide diazinon is 285 mg/kg (300-850 mg/kg) in rats and 163 mg/kg in mice; the acute transdermal LD50 in female rats is 455 mg/kg (rat transdermal LD502150mg/kg); acute inhalation LD50 in mice is 630mg/m<3. Mildly irritating to rabbit skin and eyes. The no-effect dose in the chronic toxicity feeding test is 0.1 mg/kg per day in rats and 0.05 mg/kg per day in monkeys. At the test dose, it has no teratogenic, carcinogenic or mutagenic effects on animals. The LD50 of carp is 3.2mg/L (48h). Highly toxic to bees.
Diazinon (333-41-5) Features
Diazinon is a broad-spectrum organophosphorus Insecticide that can inhibit acetylcholinesterase, a transmitter hydrolase in the synaptic transmission process, causing a large accumulation of acetylcholine released into the synaptic cleft, thereby blocking the nervous system signals. transmission, resulting in the death of the pests. Diazinon has strong contact killing and gastric poisoning effects, good fumigation and certain systemic effects, and has an egg-killing effect on some pests. The efficacy period of foliar spray application is short, but in the soil, the efficacy period is extended, which can be effectively used to control underground pests in field crops. At the same time, it is absorbed and transmitted into the plant body through plant roots, and can effectively control wheat aphids.
Diazinon (333-41-5) main advantages
(1) Broad insecticidal spectrum
It is a broad-spectrum insecticide that has contact killing, gastric poisoning, fumigation and certain systemic effects. It also has good acaricidal and egg-killing effects. It also has certain acaricidal and nematicidal activities. It has good control effect on various pests such as Lepidoptera and Homoptera.
Diazinon granules can effectively control underground pests and eggs such as mole crickets, grubs, wireworms, cutworms, rice borers, rice leafhoppers, Spodoptera exigua, meadow borers, locusts, root maggots and other underground pests. It can also be used to lose corn cobs and control pests such as corn borers.
(2) Fast insecticide
Diazinon has contact killing, stomach poisoning, and fumigation effects. After being applied to the soil, pests can be killed in a variety of ways. Once the pests feed, the pests can be killed on the same day, reducing the damage caused by the pests.
(3) Long validity period
Diazinon has good stability in the soil, is not easy to decompose, and is soluble in water. It can not only prevent and control underground pests of crops in the current season, but also effectively kill the eggs of other pests lurking in the ground, thus reducing the risk of next crops. Insect damage to crops occurs.
(4) Low toxicity and low residue
The leading varieties of soil treatment agents are highly toxic organophosphorus granules such as 3911, phorate, carbofuran, aldicarb, and chlorpyrifos. Due to their high toxicity and large residues, they have been withdrawn from the market. Diazinon is a low-toxic soil treatmentInsecticide with little odor. It has no impact on the safety of human and animal life during use. It will not causeInsecticide residues on crops after use, and it fully meets the requirements for pollution-free agricultural production.
(5) Extremely high activity
Diazinon granules contain stabilizers and high-efficiency additives. The carrier is attapulgite, which is a new granule carrier in the world. It is produced by adsorption method. It has high activity and small usage. It only uses 400 per mu for soil treatment. -500 g. It is aInsecticide variety that replaces highly toxicInsecticides in my country.
(6) Wide range of applications
Diazinon granules have good stability and low toxicity and can be widely used in wheat, corn, rice, potatoes, peanuts, green onions, soybeans, cotton, tobacco, sugar cane, ginseng and orchards.
Application scope of diazinon (333-41-5)
The insecticide diazinon can be used in cotton to control cotton aphid (active ingredient 20-30g/mu), cotton spider mite (active ingredient 30-40g/mu), cabbage caterpillar (active ingredient 20-25g/mu), vegetable aphid ( Active ingredients: 20-25g/mu), onion leafminer, bean fly (active ingredient: 20-25g/mu), rice borer, rice borer (active ingredient: 25-37g/mu), rice midge (Active ingredients 20-25g/mu), rice planthoppers, rice leafhoppers, rice leafminers (active ingredients 25-37g/mu), corn, wheat, peanut underground pests (active ingredients 20-250g/mu).
Diazinon (333-41-5) uses
The insecticide diazinon is a non-systemic broad-spectrum insecticide and has certain acaricidal and nematicidal activities. It is widely used in rice, corn, sugar cane, tobacco, fruit trees, vegetables, pasture, flowers, forests and greenhouses to control a variety of irritating and leaf-eating pests. It is also used in soil to control underground pests and nematodes. It can also be used to control ectoparasites in livestock and household pests such as flies and cockroaches.
The insecticide diazinon is a broad-spectrum insecticide. It has contact killing, stomach poisoning, fumigation and certain systemic effects. It also has good acaricidal and ovicidal effects. To control rice borers and rice leafhoppers, use 50% EC 15-30g/100m2, spray 7.5kg of water, and the control effect is 90%-100%. To control cotton aphids, cotton red wasp spiders, cotton thrips, and cotton leafhoppers, use 50% EC 7.5-12mL/100m2 and spray the water evenly, with a control effect of 92%-97%. To control the underground pests of North China mole crickets and North China chafers, use 75mL of 50% EC, add 3.75kg of water, and mix 45kg of seeds. Stir for 7 hours before sowing, or mix with 37kg of wheat seeds. Wait for the seeds to absorb the liquid, and then dry it slightly. Can be sown. To control cabbage caterpillars and aphids, use 50% EC at 6-7.5mL/100m2 and spray evenly with 6-7.5kg of water. To control onion leafminers, bean seed flies, and rice gall mosquitoes, use 50% EC 7.5 to 15 mL/100 m2 and spray evenly into 7.5 to 15 kg of water. To control large black grubs, use 2% granules 0.19kg/100m2 for hole application. Be careful not to mix it with copper-containing fungicides and propanil.
It is a non-systemic insecticide and has good control effect on Lepidoptera, Homoptera and other pests.
The insecticide diazinon is mainly used for rice, cotton, fruit trees, vegetables, sugar cane, corn, tobacco, potatoes and other crops in the form of emulsifiable concentrate sprayed on water to prevent and control sucking mouthpart pests and leaf-eating pests such as Lepidoptera and Diphenidae. It also has a certain killing effect on insect eggs and mite eggs. Seed dressing of wheat, corn, sorghum, peanuts, etc. can control soil pests such as mole crickets and grubs. Granules filled with leaves can control corn borers. Emulsifiable oil sprays with kerosene can control cockroaches, fleas, lice, flies, mosquitoes and other sanitary pests. Sheep bathing in medicinal liquid can prevent and control external parasites such as flies, lice, barnyard grass, and fleas. It is generally harmless under normal use, but some varieties of apples and lettuce are more sensitive. The pre-harvest ban period is generally 10 days. It cannot be mixed with copper preparations or the herbicide propanil, nor can it be used within 2 weeks before and after the application of propanil. Preparations cannot be held in copper, copper alloy or plastic containers.
Diazinon (333-41-5) Application
1.40% diazinon EC can be used as a foliar spray to control rice borers, corn and vegetable pests. It has a long lasting effect and is widely used, especially effective against flies.
2.Application of 10% diazinon granules
(1) Prevent and control tobacco underground pests. The main underground pests that harm tobacco include grubs, cutworms, and crickets, causing tobacco pond shortages. When transplanting tobacco, 0.5-1g of 10% diazinon granules per plant can be applied to the pond and then covered with soil and watered. This can fully exert its contact and fumigation effects to kill pests.
(2) Prevention and control of sugarcane underground pests. When planting sugarcane for the first time, after sowing, mix 2 kilograms of 10% diazinon granules with 5 kilograms of fine soil and sprinkle it into the planting ditch and then cover it with soil. This can effectively kill underground pests and protect the cane roots and cane buds from damage. Ratoon cane is combined with loose soil in the beginning of spring. During the germination period of cane buds, mix 10 kg of fine soil with 2-3 kg of 10% diazinon granules per mu, sprinkle it around the roots and then loosen the soil around the roots, so that the medicinal soil is buried around the roots. Play its role of contact and fumigation.
(3) Control mango root mealybug and apple phylloxera. When carrying out winter soil management for fruit-bearing trees. After digging the soil around the roots, mix 2-3 kg of 10% diazinon granules with 10 kg of fine soil. Apply 300-500 grams to each plant. Spread into the dug soil, and then dig once more. , turn the medicinal soil into the soil.
(4) Control yellow ants on marigold and other crops. In the cultivation of marigold and other crops, the harm caused by cricket ants in some areas is also very serious. You can use 1-2 kilograms of 10% diazinon granules per mu mixed with 5-10 kilograms of fine soil, and spread it after the marigolds and other crops are transplanted. Around the roots, then build up soil and water and cover with film.
How to use diazinon (333-41-5)
(1) Spread alms. For direct-seeded crops such as wheat, corn, potatoes, and peanuts, it can be combined with soil preparation and fertilization. Use 1,000 to 2,000 grams of 5% diazinon granules per acre mixed with fine soil and spread evenly, then sow. This can kill mole crickets, grubs, wireworms, Underground pests such as cutworms protect seeds and seedlings from pest damage.
(2) Acupoint application. For vegetables such as tomatoes, eggplants, peppers, watermelons, pumpkins, and cucumbers, 500 to 1,000 grams of 5% diazinon granules per acre can be used when planting, and 30 to 50 kilograms of fully decomposed organic fertilizer can be added and mixed well. Finally, hole application can quickly kill underground pests such as mole crickets, wireworms, grubs, and cutworms, and prevent pests from harming the roots and stems of seedlings.
Diazinon (333-41-5) Usage Techniques and Precautions
1. Spray
To treat foliar pests such as rice, cotton, vegetables, fruit trees, etc., 50% diazinon emulsifiable concentrate or 40% diazinon microencapsulated suspension can be diluted with water and sprayed. At the same time, it can be mixed with mainstream insecticides according to the occurrence of the insect. .
rice pests
Rice thrips, rice gall midges, rice leafhoppers and rice weevils: It is recommended to use 50% diazinon EC 50-100ml/acre, mix it with 15-30kg of water and spray it evenly.
Rice leaf roller: In the early stage of pest occurrence, use 50% diazinon EC 100ml/mu compounded with methamphetamine benzoate·indoxacarb or pyrofenitrile·lufenuron, and mix with water for 15- 30kg for even spraying.
wheat pests
Wheat leafflies, aphids, wheat midges, and wheat spiders: use 50% diazinon EC 30-50ml/acre mixed with 15-30kg of water. In areas with a large insect population density, it is recommended to use nicotinic insecticides: imidacloprid, chlorothiazide Use in combination with chlorine, thiamethoxam, etc.
Armyworm: Use 50% diazinon emulsifiable concentrate 50-100ml/mu mixed with pyrethrin, emamectin benzoate, abamectin, fluflubenzuron, etc., mix with 15-30kg of water and spray Spray evenly.
cotton pests
Aphids and thrips: In the early stages of insect infestation, use 50% diazinon EC 80ml/acre mixed with nicotine or pyrethroid insecticides, and apply the secondInsecticide at an interval of 7-10 days according to the occurrence of insect pests.
Cotton bollworm and pink bollworm: Spray from the peak of egg hatching to before the larvae bore the bell. Use 50% diazinon EC 100ml/acre mixed with methamectin benzoate, indoxacarb and chlorine. Insectamide, abamectin, emamectin benzoate, lufenuron, flufenuron, etc.
soybean pests
To treat soybean aphids, heartworms, pod borers, bean hornworms, bridge-building insects, etc., you can use 50% diazinon emulsifiable concentrate 50-100ml/acre and mainstream chlorantraniliprole, abamectin, and emamectin. Formate, high-efficiency cypermethrin, etc. are mixed and used, and mixed with 15-30kg of water and sprayed evenly. In soybean fields where underground pests are common, 50% diazinon EC can be mixed with a soybean field sealing agent to prevent and control underground pests.
fruit tree pests
Citrus leafminers, spider mites, scale insects, woolly aphids, and thrips: Use 40% diazinon microencapsulated suspension spray 800-1000 times, and mix it with other insecticides according to the characteristics of the insect pests. .
Peach heartworm: Spray 40% diazinon microencapsulated suspension 400-500 times, and mix it with bisamide, carbamate or pyrethroid insecticides to achieve a synergistic effect. This combination It can also be used to control hawthorn spider mites and apple spider mites.
2. Soil treatment
For sweet potatoes, potatoes, ginger, yams, Chinese medicinal materials, and other root and tuber crops, as well as greenhouse vegetables, use "hunting weight" (5% diazinon granules) 2-3 kg/acre in furrows before sowing or planting. Apply in holes, mixed with fertilizer (soil) or broadcast to control leeks, grubs, cutworms, mole crickets, etc.
Diazinon (333-41-5) use
Diazinon is an organophosphorus Insecticide that completely kills pests mainly by inhibiting the synthesis of acetylchol inesterase in pests. It can not only be used for foliar spraying to control Lepidoptera, Homoptera and other pests, but also Can be used for seed and soil mixed treatment to control underground pests. To control rapeseed, spawning peaks after 1 week, and larvae are controlled at 2-3 instars. Use 40-50 ml of 50% cream (20-25 g of active ingredient) per 667 square meters and spray 40-50 kg of water.
The insecticide diazinon is used to control aphids, and the dosage is the same as for cabbage. To control leaf insects and leguminous plants, use 50-100 ml of 50% oil (25-50 g of active ingredient) and 50-100 kg of water spray per 667 square meters. Diazinon is different from other Insecticides in that it has a broad insecticidal spectrum, is safe for humans and animals, has no pollution to the environment, and is easy to use. Diazinon has wide adaptability to soil and has good ecological and economic benefits in mountainous and hilly areas. Diazinon has relatively low resistance to crops, is highly safe for humans and animals, is easy to use, has no harm to human and animal health after use, and can be used in different soils.
1. To control vegetable pests, cabbage caterpillar, one week after the peak of egg laying, the larvae are in their 2nd to 3rd instar stage. Use 40-50 ml of 50% emulsifiable concentrate (20-25 grams of active ingredient) per 667 square meters and spray 40-50 kg of water. To control aphids, the dosage and application method are the same as those for cabbage caterpillars. To control onion leaf miner and bean fly, use 50 to 100 ml of 50% EC (25 to 50 grams of active ingredient) per 667 square meters and spray 50 to 100 kilograms of water.
2. To control cotton pests, cotton aphids, if the rate of aphids on seedlings reaches 30%, the average number of aphids per plant is nearly 10, and the leaf rolling rate reaches 5%, use 40 to 60 ml of 50% EC (active ingredient) per 667 square meters. 20--30g), spray 40--60kg of water. To prevent and control spider mites, during the mite occurrence period before the end of June, use 60 to 80 ml of 50% EC (30 to 40 g of active ingredient) per 667 square meters and spray 50 kg of water.
3. To control the rice borer, the dead heart should be controlled during the egg hatching period, and white ears should be controlled at 5% to 10% of the broken ear stage. Use 50% to 75ml of 50% EC per 667 square meters (effective Ingredients: 25 to 37.5 grams), spray 50 to 75 kilograms of water to prevent and control the ant borer. In the year when the ant borer hatches most frequently, apply once 3 days before the hatching peak, and again 7 to 10 days later. The dosage and method are the same as those for the ant borer. To prevent and control rice gall mosquitoes, we mainly control middle and late rice seedling fields to prevent the source of insects from being brought into Honda. Use the drug from the peak period of adults to the peak period of larvae hatching. Use 50 to 100 ml of 50% EC (25 to 50 grams of active ingredient) per 667 square meters, and spray 50 to 75 kilograms of water. To control rice planthoppers, leafhoppers and rice stalk flies, useInsecticides during the occurrence period. The dosage and usage methods are the same as those for rice gall mosquitoes.
4. For underground pest control, use 500 ml of 50% EC (250 g of active ingredient), add 25 kg of water, mix with 300 kg of corn or sorghum seeds, mix well and simmer for 7 hours before sowing. With the same amount of medicine and water, 250 kilograms of wheat seeds can be mixed. Wait for the seeds to absorb the medicine liquid and let them dry slightly before sowing. To prevent and control large black grubs in spring sown peanut fields, use 1.25kg of 2% granules (25g of active ingredient) and hole fertilizer per 667 square meters.
Preparation method of diazinon (333-41-5)
1. Synthesis of isobutyramidine hydrochloride. Add 53.5g of isobutyronitrile to a three-necked flask equipped with a reflux condenser, stirring device, thermometer, and gas introduction tube. Then, add anhydrous methanol under stirring, control the temperature, and introduce dry hydrogen chloride gas within 60 to 90 minutes. After passing the hydrogen chloride, add ice-cold methanol, react for another 1 hour, cool, control the temperature, and pass in dry ammonia. When the pH value of the reaction solution reaches 8 to 9, stop passing ammonia, continue the reaction for 1 to 3 hours, and filter to obtain 183.5g of filtrate. , the content of isobutamidine hydrochloride is 47.8%, and the yield is 93.6%.
2. Synthesis of hydroxypyrimidine: Add 0.25 mol of isobutylamidine hydrochloride solution into a 250 ml three-necked flask, heat to evaporate the methanol, dedry, add ethyl acetoacetate and solvent I, and at a certain temperature, add sodium hydroxide solution , then heated to increase temperature, refluxed and dehydrated for 2 hours, cooled, filtered, and the filter cake was pickled, neutralized, and dried to obtain 34g of solid hydroxypyrimidine, with a content of 97.98% and a cyclization yield of 87.6%.
3. Synthesis of diazinon: Add 34g of the hydroxypyrimidine synthesized above into a 250ml three-necked flask, add 100ml of solvent II and a small amount of potassium carbonate and catalyst, heat and stir to increase the temperature, add ethyl chloride dropwise at a certain temperature, and finish adding After the reaction was incubated for 2 hours, the reaction solution was washed with alkali, acid washed, neutralized, layered, and the organic layer was desolvated under reduced pressure to obtain 61.5g of diazinon crude oil, with a content of 97.4% and a condensation yield of 89.8%.
Diazinon (333-41-5) Precautions
During the use of diazinon, it is recommended to mix it withInsecticides with different mechanisms of action to achieve a synergistic effect;
When using diazinon on various melons, you should wait until the vines are 1 meter long before spraying;
In the seedling stage of crops and under conditions of high temperature and high humidity, the time and dosage of medication should be reasonably selected;
It is prohibited near the flowering period of nectar crops.
Do not mix with alkalineInsecticides. This product should not be mixed with propanil, nor should it be used within two weeks before or after the application of propanil.
Stop using medication within 10 days before crop harvest.
This product cannot be packed in copper, copper alloy cans or plastic bottles. Store in a cool and dry place.
Antidotes include atropine sulfate, pralidoxime, etc.
Diazinon (333-41-5) insecticide price
Under normal circumstances, the price of theInsecticide diazinon will be affected by raw materials, market environment, research and development costs, etc. If you want to know the latest price of theInsecticide diazinon you need, please contact us to initiate an inquiry.
Tel: 13563082345 Email: sales@agripesticide.com
Diazinon (333-41-5) Insecticide Suppliers
Agripestcide is a professional agrochemical manufacturer that provides various products such as herbicides, insecticides, microbial fungicides, and plant growth regulators. If you are looking forInsecticide insecticide diazinon, please feel free to contact us to get the latest price.