Malathion -non-systemic insecticide and acaricide pesticides
What is insecticide malathion?Malathion is an organophosphate insecticide which acts as an acetylcholinesterase inhibitor.Malathion is an insecticide in the chemical family known as organophosphates. Products containing malathion are used outdoors to control a wide variety of insects in agricultural settings and around people's homes.Cas 121-75-5Malathion has also been used in public health mosquito control and fruit fly eradication programs. Malathion may also be found in some special shampoos for treating lice.
Malathion is a man-made organophosphate insecticide that is commonly used to control mosquitoes and a variety of insects that attack fruits, vegetables, landscaping plants, and shrubs. It can also be found in other pesticide products used indoors and on pets to control ticks and insects, such as fleas and ants.These products contain over 95% malathion and are often applied undiluted. However, they may be diluted with a petroleum solvent similar to kerosene before application, in which case petroleum solvent will make up most of the pesticide solution.
How does insecticide malathion work?
Malathion kills insects by preventing their nervous system from working properly. When healthy nerves send signals to each other, a special chemical messenger travels from one nerve to another to continue the message. The nerve signal stops when an enzyme is released into the space between the nerves. Malathion binds to the enzyme and prevents the nerve signal from stopping. This causes the nerves to signal each other without stopping. The constant nerve signals make it so the insects can't move or breathe normally and they die.
People, pets and other animals can be affected the same way as insects if they are exposed to enough malathion. About the same amount of malathion will be taken into the body whether you breathe it in or you swallow it. Malathion is also readily taken into the body through skin, though the amount absorbed will depend on where the exposure occurs on the body. Malathion can become more toxic if it has been sitting for a long time, especially in a hot place.
How to Use insecticide malathion
Spraying Malathion on plants
1: Identify where preventive treatment or where immediate treatment is needed then determine how much Malathion Liquid Concentrate you will need by calculating the square footage of the target area. To do this, measure (in feet) and multiply the area length times the width (length x width = square footage). The rate varies depending on the pest you are trying to treat and where you are spraying. For example, for small applications to control flies the rate is 2.5 oz. (5 tablespoons) per 1,000 sq. ft. in a gallon of water on painted surfaces or 2 gallons per 1,000 sq. ft. on unpainted surfaces.
2: For proper mixing, the sprayer tank should be filled at least 3/4 of water before this product is added. Add the appropriate amount of Malathion based on your calculations and the pest you are treating for. Shake sprayer occasionally or agitate to keep spray particles in suspension during application.
3: Spray the desired surface areas until they are wet. One gallon covers up to 1,000 sq. ft. depending on surface type.
4: For continuous control, respray areas within 2 to 3 weeks or as needed.
Malathion is produced by the reaction of phosphorus pentasulfide with methanol in toluene to produce an intermediate, dimethylphosphorodithioic acid. The intermediate is isolated and then reacted with either diethylfumarate or diethylmaleate. Malathion is widely used as an agricultural insecticide. It is used to kill insects on agricultural crops, on stored products, on golf courses, and in home gardens. It also used to kill mosquitoes and fruit flies in large outdoor areas. In addition, it is used to kill fleas on pets and to treat head lice on humans.
Where to Use insecticide malathion
Malathion is a pesticide that is widely used in agriculture, residential landscaping, public recreation areas, and in public health pest control programs such as mosquito eradication.Malathion can be used on lawns, gardens, crop sites, pastures, range grasses, outdoor ornamentals, on and around cull fruit and vegetable dumps, and sites where there is stored grain.
Malathion is an insecticide that does not occur naturally. Pure malathion is a colorless liquid, and technical-grade malathion, which contains >90% malathion and impurities in a solvent, is a brownish-yellow liquid that smells like garlic. Malathion is used to kill insects on farm crops and in gardens, to treat lice on humans, and to treat fleas on pets. Malathion is also used to kill mosquitos and Mediterranean fruit flies on in large outdoor areas.
When to Use insecticide malathion
Malathion Liquid Concentrate should be used as a prevention method in lawns and gardens. The residual effects will kill insects for up to 2 or 3 weeks. If using as a quick kill method, spray directly on pests when first noticed.
Insecticide malathion price
Normally the price of the pesticide insecticide malathion is affected by raw materials, market environment, R&D costs, etc. If you want to know the latest priceof the pesticide insecticide malathion you need, please contact us to initiate an inquiry.
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Insecticide malathion supplier
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Chemical Action and Usages insecticide malathion
Malathion is an organophosphate insecticide for outdoor use only. It controls a broad range of chewing and sucking insects on certain fruit, vegetable, herbaceous ornamentals, trees and shrubs. Also used around homes and foundations to control mosquitoes, flies and certain other insects and on lawns to control clover mites. Malathion is available is several formulations including dusts, wettable powder and emulsifiable concentrates.
Mechanism of action insecticide malathion
Malathion is an acetylcholinesterase inhibitor, a diverse family of chemicals. Upon uptake into the target organism, it binds irreversibly to the serine residue in the active catalytic site of the cholinesterase enzyme. The resultant phosphoester group is strongly bound to the cholinesterase, and irreversibly deactivates the enzyme which leads to rapid build-up of acetylcholine at the synapse.
Malathion is toxic via skin contact, ingestion, and inhalation exposure.
Malathion and other organophosphate insecticides bind to the enzyme acetylcholinesterase (AChE) at nerve endings throughout the bodies of insects and other organisms.Under normal circumstances, AChE binds to the neurotransmitter acetylcholine (ACh) at the nerve junction, effectively ending the stimulation of the next neuron. When AChE is bound by malathion's metabolite malaoxon, ACh accumulates at the nerve junction and results in overstimulation of the nervous system.
Chemical Properties insecticide malathion
Malathion is an organophosphate insecticide CAS121-75-5 .Malathion is a colorless to amber liquid with a skunk- or garlic-like odor.
Vapor pressure2,3,4: 1.78 x 10-4 mmHg at 25 °C or 5.3 mPa at 30 °C; also 1.2 x 10-4 to 8 x 10-6 mmHg at 20 °C
Octanol-Water Partition Coefficient (log Kow): 2.75, 2.36-2.89
An experimental value of 2.0 (± 1.2) x 10-7 (n = 6 experimental values, dimensionless units) is reported based on a wetted-wall column, concentration/concentration method.This value has been cited elsewhere as 4.9 x 10-9 atm·m3/mol.2 Additional estimated values range from 2.4 x 10-7 to 1.0 x 10-6 at varying temperatures.An additional value of 5.68 x 10-8 mmHg has been reported.
Molecular weight3: 330.4 g/mol
Solubility (water)3: 145 mg/L
Soil Sorption Coefficient (Koc)2,4: 30, 93-1800 depending on soil type and environmental conditions.
What are some products that contain malathion?
Products containing malathion may be liquids, dusts, wettable powders, or emulsions.
Always follow label instructions and take steps to avoid exposure. If any exposures occur, be sure to follow the First Aid instructions on the product label carefully.
How is malathion used in mosquito control?
Malathion is part of an integrated overall strategy to control mosquitoes.malathion is an adulticide, used to kill adult mosquitoes. Most malathion mosquito adulticide applications (about 90%) are made by ground application. However, in situations of heavy mosquito presence across large geographic areas, aerial application is an important method of application. Less than 1% of spraying for mosquitoes is malathion aerial spray.
How might be exposed to malathion?
You could be exposed to malathion if you get it on your skin or breathe it in, or if you use a product and eat, drink, or smoke afterwards without washing your hands. People who apply products containing malathion may be exposed if they do not wear the proper protective equipment. You could also be exposed to residues of malathion if you ate food that had been treated with this pesticide.
What are some signs and symptoms from a brief exposure to malathion?
People who were exposed to enough malathion to become sick felt nauseated or vomited, had muscle tremors, cramps, weakness, shortness of breath, a slowed heart rate, headache, abdominal pain and diarrhea.
Pets could be exposed to malathion if they get into a product by accident, or touch or eat plants that have just been sprayed. Pets will be affected by malathion like other animals. The nervous system is very similar in people and other animals, so animals poisoned by malathion may show signs similar to those observed in people.
What happens to malathion when it enters the body?
In both humans and animals, malathion travels to the liver and kidneys and affects the nervous system. Generally, the body can break down malathion and remove it quickly. Studies in rats showed that most malathion was gone from their bodies within a day of exposure.
Has anyone studied non-cancer effects from long-term exposure to malathion?
Rats fed malathion when they were pregnant had lower levels of the target enzyme than other rats. The fetuses also had less of the target enzyme. Rabbits were more likely to resorb their fetuses if they were fed malathion when pregnant. Rats that were fed malathion for three weeks had less thyroid activity than other rats.
What happens to malathion in the environment?
Bacteria in the soil may break down malathion and sunlight can break down malathion in the air. Malathion will mix with water and can move quickly through soil. Because of these properties, malathion can be found in surface waters such as streams, and sometimes it is found in well water. The time it takes for malathion to break down to half of the original amount in soil is about 17 days, depending on the soil type. This length of time is known as the half-life. In water, malathion has a half-life between 2 and 18 days, depending on conditions like temperature and pH. Malathion vapor may also move long distances in air or fog.
Can malathion affect birds, fish, or other wildlife?
Malathion is highly toxic to bees and other beneficial insects, some fish, and other aquatic life. Malathion is moderately toxic to other fish and birds, and is considered low in toxicity to mammals.