Synthetic Insecticides


CHEMICAL NAME: O,S-dimethyl acetylphosphoramidothioate
POPULAR BRAND NAMES: Orthene, Ortran, Tree and Ornamental Spray
DESCRIPTION: White, 75% soluble powder made for use as a spray, when mixed with water, or an aerosol. Also available as a 9.4% emulsifiable concentrate. Works both as a contact and as a systemic insecticide. Absorbed within about 24 hours; rain-fast.
USE: Controlling aphids, caterpillars, leaf miners, scale, whiteflies, and many other bugs on potted, flowering, bedding,and ornamental plants and cut flowers. Especially good in combating fire ants. Sometimes used on roses, trees and shrubs, too. Stays in the plant about 14 to 21 days when applied to the leaves as recommended.


CHEMICAL NAME: O,O-diethyl O-(3,5,6 trichloro-2-piridyl) phosphorothioate
POPULAR BRAND NAMES: Brodan, Dursban, Eradex, Lorsban, Pyrinex, d-Con Home Pest Control Killer, Raid Home Insect Killer
DESCRIPTION: White, granular crystal or fine powder, emulsifiable concentrate, or diluted household spray. Contained in many common household insect sprays.
USE: Chlorpyrifos is an insecticide for use against ants, ticks, cutworms. chinch bugs, earwigs, grubs, cockroaches, silverfish, spiders, fleas, dog ticks, and mosquitoes. Also used to control termites, against which it may be effective for up to 18 years.
WARNING: One of the most common sources of organophosphate poisoning because it is extremely toxic to fish, aquatic invertebrates, and birds—keep away from water supply.


CHEMICAL NAME: O,O-diethyl O-(2-isopropyl-6-methyl-4-pyrimidinyl) phosphorothioate
POPULAR BRAND NAMES: Spectracide, Basudin, D-264, Dazzel, Diagran, Dianon, Diaterr-Fos, Diazajet, Diazatol, Diazide, Diazol, Dizinon, Drawizon, Dyzol, D.zn., Fezudin, G-24480, Garden-tox, Kayazion, Kayazol, Neocidol, Nipsan, Sarolex (and many ant and roach killers)
DESCRIPTION: Comes as an emulsifiable concentrate, wettable powder, granular mixture, or prediluted ready-to-use household spray. A member of organophosphate family. Extremely toxic to birds feeding on treated lawns. One of the most commonly used insecticide ingredients since the early 1950s, and one of the most toxic available to the consumer. Often mixed with other chemicals, sch as fertilizers.
USE: Lawn and garden control of aphids, leafhoppers, leaf miners, sawflies, scale, cutworms, grubs, chinch bugs, and other soil insects. Household use include cockroaches, ants, firebrats, silverfish, sow bugs, springtails, spiders, crickets, earwigs, carpet beetles, and brown dog ticks.
WARNING: This is a very toxic chemical that has not been tested in every way it is used, because it is in so many consumer products for which it is hard to develop reliable data. However, the EPA banned its use on sod farms and golf courses owing to the number of deaths it caused in bird populations. Watering it in thoroughly after application helps some, but then that brings earthworms to the surface which attract birds. It also persists in the insects that birds eat. You should consider this before putting it on your lawn. Do not use old or improperly stored pressurized containers, as they may explode.

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Horticultural Oil

ALSO KNOWN AS: Dormant oil, dormant spray, summer oil, growing season spray, oils, miscible oils, white oils, petroleum oils, insect spray, superior oil, oil spray, superior horticultural spray oil, scale oil
POPULAR BRAND NAMES: 90-Par, Volck, Scalecide
DESCRIPTION: A high-grade, highly refined, light viscosity petroleum product not unlike mineral oil that is sprayed on ornamentals, shrubs, and trees either in early spring (known as dormant oil) or late spring—early summer (known as summer verdant, or growing season oil). New technical improvements allow it to be used on more plants and for a wider range of seasons. Usually mixed with water—contains an emulsifier for this purpose. May also be made from fish oils or a mixture of borax and kerosene (brand name Ced-O-Flora). The difference between dormant and summer oils is in viscosity—dormant is thicker, summer is thinner—which may just be the rate at which it is mixed with water by the gardener. Some are sold just as dormant oils. Considered an organic pesticide by many gardeners.
USE: Suffocates certain pests, such as mites, mealybugs, and scale. Dormant oil sprays are applied in March, before new leaves have appeared, for the control of scale, aphids, and spider mites on the stem and trunk. As a summer oil, it is applied in late spring or early summer for the control of aphids, mites, and scale in their crawling stages. Sometimes used as a contact herbicide and, when greatly diluted, as a leaf polish. Can be mixed with compatible pesticides.
WARNING: Toxic to fish. Flammable—do not store or use near heat or flame. Summer oil can be applied when there is little wind or breeze during late spring. Dormant oil must be sprayed on shrubs and trees before new leaves appear, when it is not windy, and when the temperatures are above freezing and are expected to stay there for a few days.


CHEMICAL NAME: O,O-dimethyl dithophosphate of diethyl mercaptosuccinate
POPULAR BRAND NAMES: Calmathion, celthion, Cythion, Detmol MA 96%, Emmatos, Emmatos Extra For-mal, Fyfanon, Kop-Thion, Kypfos, Malaspray, Malamar, Malatol, Home Orchard Spray, Bonide Rose Spray, No-Roach Spray
DESCRIPTION: Wettable powder or emulsifiable concentrate that makes a clear to amber liquid with a garlic odor. Broad spectrum insecticide, only slightly toxic to mammals.
USE: For the control of aphids, leaf miners, mealybugs, whiteflies, scale, and lace bugs.
WARNING: Harmful if comes into contact with your skin or is inhaled. Wash your hands well after using.


CHEMICAL NAME: 2,2-bis (p-methoxyphenyl)-1,1,1-trichloroethane
POPULAR BRAND NAMES: Marlate, Methoxychlor 25
DESCRIPTION: Developed as a substitute for DDT; is less harmful to the environment and has very low toxicity to animals and humans. Comes as a wettable powder or emulsifiable concentrate, as well as a dust or aerosol.
USE: For the control of chewing insects that attack flowers, shrubs, vegetable, and fruit and shade trees, as well as mosquitoes, ticks, and flies.
WARNING: Store in cool, dry place. Long residual effect.


CHEMICAL NAME: Carbaryl (1-naphthyl N-methylcarbamate)
Common BRAND NAME: Sevin
DESCRIPTION: Dust or spray, generally containing 5 to 10 percent carbaryl, or a stronger liquid concentrate.
USE: Very broad spectrum insecticide for combating armyworms, cutworms, squash bugs, tomato hornworms, fleas and ticks, certain varieties of beetles, leafhoppers, and numerous other vegetable pests.
WARNING: Despite the commonness of this product, use it very carefully, following the directions as with all pesticides and taking precautions to keep it out of the home (when using it on animals) and away from bees, to which it is very toxic.

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