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Wettable Powder
A wettable powder (WP) is an insecticide or other pesticide formulation consisting of the active ingredient in a finely ground state combined with wetting agents and sometimes bulking agents. Wettable powders are designed to be applied as a dilute suspension through liquid spraying equipment. As wettable powders are not mixed with water until immediately before use, storing and transporting the products may be simplified as the weight and volume of the water is avoided. Wettable powders may be supplied in bulk or in measured sachet A sachet is a small scented cloth bag filled with herbs, potpourri, or aromatic ingredients.Oster, p. 54 A sachet is also a small porous bag or packet containing a material intended to interact with its atmosphere; for example, desiccants ar ...s made from water-soluble film to simplify premixing and reduce operator exposure to the product. References {{Reflist Pest control techniques Powders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insecticide
Insecticides are substances used to kill insects. They include ovicides and larvicides used against insect eggs and larvae, respectively. Insecticides are used in agriculture, medicine, industry and by consumers. Insecticides are claimed to be a major factor behind the increase in the 20th-century's agricultural productivity. Nearly all insecticides have the potential to significantly alter ecosystems; many are toxic to humans and/or animals; some become concentrated as they spread along the food chain. Insecticides can be classified into two major groups: systemic insecticides, which have residual or long term activity; and contact insecticides, which have no residual activity. The mode of action describes how the pesticide kills or inactivates a pest. It provides another way of classifying insecticides. Mode of action can be important in understanding whether an insecticide will be toxic to unrelated species, such as fish, birds and mammals. Insecticides may be repellent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pesticide
Pesticides are substances that are meant to control pests. This includes herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lampricide. The most common of these are herbicides which account for approximately 80% of all pesticide use. Most pesticides are intended to serve as plant protection products (also known as crop protection products), which in general, protect plants from weeds, fungi, or insects. As an example, the fungus ''Alternaria solani'' is used to combat the aquatic weed ''Salvinia''. In general, a pesticide is a chemical (such as carbamate) or biological agent (such as a virus, bacterium, or fungus) that deters, incapacitates, kills, or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, molluscs, birds, mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, or spread disease, or a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Ingredient
An active ingredient is any ingredient that provides biologically active or other direct effect in the diagnosis, cure, mitigation, treatment, or prevention of disease or to affect the structure or any function of the body of humans or animals. The similar terms active pharmaceutical ingredient (also abbreviated as API) and bulk active are also used in medicine, and the term active substance may be used for natural products. Some medication products may contain more than one active ingredient. The traditional word for the active pharmaceutical agent is pharmacon or pharmakon (from el, φάρμακον, adapted from '' pharmacos'') which originally denoted a magical substance or drug. The terms active constituent or active principle are often chosen when referring to the active substance of interest in a plant (such as salicylic acid in willow bark or arecoline in areca nuts), because the word "ingredient" in many minds connotes a sense of human agency (that is, something t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surfactant
Surfactants are chemical compounds that decrease the surface tension between two liquids, between a gas and a liquid, or interfacial tension between a liquid and a solid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents, or dispersants. The word "surfactant" is a blend of ''surface-active agent'', coined . Agents that increase surface tension are "surface active" in the literal sense but are not called surfactants as their effect is opposite to the common meaning. A common example of surface tension increase is salting out: by adding an inorganic salt to an aqueous solution of a weakly polar substance, the substance will precipitate. The substance may itself be a surfactant – this is one of the reasons why many surfactants are ineffective in sea water. Composition and structure Surfactants are usually organic compounds that are amphiphilic, meaning each molecule contains both a hydrophilic "water-seeking" group (the ''head''), and a hydro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suspension (chemistry)
In chemistry, a suspension is a heterogeneous mixture of a fluid that contains solid particles sufficiently large for sedimentation. The particles may be visible to the naked eye, usually must be larger than one micrometer, and will eventually settle, although the mixture is only classified as a suspension when and while the particles have not settled out. Properties A suspension is a heterogeneous mixture in which the solute particles do not dissolve, but get suspended throughout the bulk of the solvent, left floating around freely in the medium. The internal phase (solid) is dispersed throughout the external phase (fluid) through mechanical agitation, with the use of certain excipients or suspending agents. An example of a suspension would be sand in water. The suspended particles are visible under a microscope and will settle over time if left undisturbed. This distinguishes a suspension from a colloid, in which the colloid particles are smaller and do not settle. Colloids a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sachet
A sachet is a small scented cloth bag filled with herbs, potpourri, or aromatic ingredients.Oster, p. 54 A sachet is also a small porous bag or packet containing a material intended to interact with its atmosphere; for example, desiccants are usually packed in sachets which are then placed in larger packages. A sachet can be defined as a small soft bag containing perfumed or sweet-smelling items also referred to as an ''ascent bag,'' ''scent bag'', ''sweet bag'', ''sachet bag'', ''sachet de senteurs'', ''spiced sachet'', ''potpourri sachet'', ''scented sachet'', ''perfume cushion'', ''smelling cushion'', ''scented cushion'', ''fragrant bag'', ''pomander'' or ''dream pillow''. Cultural history During the Chinese |
Pest Control Techniques
Pest or The Pest may refer to: Science and medicine * Pest (organism), an animal or plant deemed to be detrimental to humans or human concerns ** Weed, a plant considered undesirable * Infectious disease, an illness resulting from an infection ** Plague (disease), an infectious disease caused by the bacterium ''Yersinia pestis'' *** Black Death (the Plague), the deadliest pandemic recorded in human history Film * ''The Pest'' (1914 film), an American short film starring Charlie Chaplin * ''The Pest'' (1917 film), an American film starring Oliver Hardy * ''The Pest'' (1919 film), an American film starring Mabel Normand * ''The Pest'' (1922 film), an American film starring Stan Laurel * ''The Pest'' (1997 film), an American film starring John Leguizamo Music * Pest (band), a British music group * Pest (musician) (born 1975), Norwegian black metal vocalist Places * Pest, Hungary, the geographic region of Budapest ** Royal University of Pest * Pest County, an administrative div ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
