Mineral-oil emulsion for the control of pests of plants

 

(57) Abstract:

The invention relates to agriculture, in particular to insecticidal for pest management of fruit crops. Mineral-oil emulsion contains licorice extract and activated positively charged water with a pH of 8.2 in the following ratio, wt. %: mineral oil 60-65; licorice root extract 6-10; emulsifier OP-10 6-10; activated water - the rest. Mineral-oil emulsion has a broad spectrum of activity, high effectiveness against pests of plants and antifungal properties.

The invention relates to agriculture, in particular to biocides, e.g., disinfectants, pesticides, herbicides, repellents or attractants, or plant growth regulators, characterized by their shape, inactive ingredients or method of application, the substances that weaken the harmful effects of the active ingredients to organisms other than pests, characterized by surface-active substances, and containing hydrocarbons, namely insecticidal for pest control of fruit-berry cultures.

Known organophosphorus seeking to control Colorado potato beetle, the fruit pests, aphids, mites and other sucking and leaf-eating pests on fruit, citrus and vegetable crops, tobacco shag. Also issued in the form of 10% of the concentrated emulsion. The multiplicity of treatments - two. The disadvantage of this drug is its toxicity, although low toxicity to bees, inability to use it with alkaline compositions, including those containing lime, does not destroy the eggs of mites and inefficient with a number of other plant diseases.

Known insecticide (PCT(WO) patent N94/22299, M A 01 CL N 25/00), which consists of two active components, which composition is in solid form), one of the components stimulates the growth of insect larvae, and the second active is a toxic substance that kills adults.

The disadvantage of this insecticide is its selective effects on a limited number of species of insects.

Known insectoacaracide "barbatos" - 10% concentrated emulsion or 10% of the wetting powder, organophosphorus drug contact action (C. I. Sergeev. "ABC gardener". - M: VO "Agropromizdat", 1989, pp. 458-459), mixes well with water, forming a stable emulsion. the to the younger ages, larvae of sawflies, and caterpillars Apple moth.

The disadvantage of this drug is the short duration of exposure, does not destroy the eggs of pests (does not have bildname properties), toxic, loss of use in early spring.

It is known that the dispersion - fine grinding fluid. Introduction of surface-active substances (surfactants) - dispersers, emulsifiers - reduces energy consumption by dispersion and increases the dispersion of the chopped phase. Pressure up to 0.8 MPa".

Lifornia emulsions occur when mechanical, acoustic or electric emulsification, and also due to condensation formation of droplets of the dispersed phase in a supersaturated solutions or melts. They are thermodynamically unstable. Stabilizers of emulsions surfactants are.

The emulsion are considered - used in the form of 3-10% bear water emulsions. Prepared on the basis of petroleum oils, mainly industrial. Contains emulsifiers (salts of carboxylic acids or sulfonic acids, and others), stabilizers (for example, water, alcohol) and additives (bactericidal, antifoaming) ("Chemical dictionary". - M. : Soviet encyclopedia, 1983, mainly edit the Jana emulsion (oil oil 73% plus copper naphthenate 15% - organic copper salt as a fungicidal additive (C. K. Grebenschikov. "Handbook for the protection of plants for gardeners". - M.: Rosselchozizdat, 1987, page 31). Recommended for one-time spraying Apple trees in early spring against overwintering stages of insects, mites, medanic, aphids and some other pests, and to reduce the development of scab and leaf spot (see also C. I. Sergeev. "ABC gardener", page 456).

The disadvantage of this emulsion is to use only one kind of fruit trees, namely Apple, and inefficient with a number of pests and other plant diseases of fruit crops.

Known pesticide (PCT(WO) patent N94/23578, M CL A 01 N 25/30 "composition of the herbicide). The herbicide composition is in the form of a concentrated microemulsion: a) the active ingredient of herbicide action, b) the surfactant is ethoxylated of stillfeel, in) organic solvent from the group of aromatic hydrocarbons, d) water. Used as a herbicide for rice fields. The disadvantage of this composition herbicide is that it applies only to crop.

The closest technical solution to the proposed composition of the mineral-oil emulsion is prasarttong registration preparative forms ("List of pesticides and agrochemicals, permitted for use on the territory of the Russian Federation in 2001. Supplement to the journal "Protection and quarantine of plants" N3, 2001, page 66). The drug N30 contains 76% of mineral oils, surface-active substances (surfactants) and water, is a concentrate of mineral oil emulsion and belongs to the drug contact action.

As the surfactant used soap, concentrates sulfite-alcohol stillage, drugs OP-7 and OP-10, gelatin, casein and its products, and clay, with high surface activity (Agricultural encyclopedia", M, 1975, ed. "Soviet encyclopedia", ed. 4-e, page 1029, volume 4). Surfactant is ethoxylated products OP-7 and OP-10, wetting DB, OS-20 - retain high activity in different environments (ibid, page 75, volume 4).

Emulsifying agents such as Soaps, surfactants OP-7 and OP-10 (emulsions). Wettability and flowability of the liquid improve, giving it various substances-wetting and rustically, which increase the adhesion and fixation on the treated surfaces (ibid, page 478, volume 4).

A disadvantage of the known mineral-oil emulsions (drug N30) is the following: illegal use of the emulsion in the sanitary zone around the egov, a partial destruction of the eggs of pests of plants; does not possess fungicidal properties.

The essence of the invention is expressed in oil-mineral oil emulsions, including mineral oil, surfactant, emulsifier, water, according to the invention as surfactants contains licorice root extract, and water quality contains activated positively charged water with a pH of 8.2 in the following ratio, wt. %: mineral oil - 60-65; licorice root extract - 6-10; emulsifier OP-10 - 6-10; activated water - the rest. Technical result achieved is in causal connection with the essence of the invention lies in improving the effectiveness of the emulsion on plant pests, giving it a fungicidal properties and broaden the spectrum of action.

The invention will be understood from the following description of the invention.

The process of obtaining mineral-oil emulsion (me) is the process of mixing all the components to obtain a homogeneous emulsion consistency based on the dispersion conditions. This mixing can be carried out on equipment the gate (circulation) mixture is performed using two pumps NSH-50 with a capacity of 50 liters per minute each. For these purposes may also be used a device with a hydrodynamic emitters inside the tank, which rise and fall, forming intense changing jet cavitation field, leading to the intensification of the process of dispersion of the components of the emulsion (Ed. St. N1550713, M CL 06 In 1/20 "Acoustic camera"). This camera on the circulation of the mixture creates a pressure of 0.1-0.7 MPa.

The tank is loaded industrial mineral oil brand And 40 (for me for the use of the emulsion in the summer, use of mineral oil type transformer, vaseline, which do not cause burns green parts of plants (page 1131, volume 3, "agriculture encyclopedia", M, 1975, ed. Soviet encyclopedia, 4th ed.). The oil weight take 60%, based on the prototype - 76% concentrated mineral-oil emulsion. At the same time at the same temperature injected surfactant-licorice root extract 10%, emulsifier OP-10 (aka lubricant and is a chemical substance "oxyethylenenitrilo") - 6%, the rest - activated positively charged water with a pH of 8.2 (so-called "living" water with alkaline properties or "catholyte"). The total mass of 500 kg of the emulsion, the operating Time of the pumps 20 minutes from placentas motor - not less than 10 kW.

In the rhizomes and roots of wild plants licorice (Glicyrrhiza) contains up to 23% glycyrrhizic acid, glucose, sucrose, gum and other complex substances. The greatest value for the production of emulsions (me) it is due to the presence of the large percentage of high-molecular surface-active substances (surfactants), namely glycyrrhizin-saphenofemoral substance representing potassium and calcium salt trehosnovnoy glycyrrhizic acid. The licorice root extract is prepared by extraction with hot water in the diffuser. Then the extract evaporated by boiling up to 20-25% solids. The thick humidity of extract 35%, ash 9%, the content of glycyrrhizin to 18%.

Crystalline powder prepared from the same extracted hoods only by evaporation in a vacuum apparatus, and finally dried in a gas or electric dryers. The humidity of the powder up to 10%, the content of glycyrrhizin to 25%.

Before the introduction of licorice root extract in a tank of mineral oil mixed with an equal amount of activated (slightly alkaline) water (tap water has a pH of 7.5; slightly alkaline range of pH 8 to 10). The rest of activated water is injected immediately is esta and is relatively easy break chemical bonds glycyrrhizic acid with the formation of one molecule glycyrrhetinate and two molecules of glucuronic acid and the advent of free valence radicals. Below is the formula glycyrrhizic acid

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Research has shown that glucuronic acid is able to bind many toxic substances, for example, in humans, and that two molecules of glucuronic acid, connected together, as is the case in glycyrrhizic acid, act more vigorously. It is known that the adsorption layers of high-molecular surface-active substances (licorice root extract), removing the surface tension at the interface of particle-Wednesday, bind some of the dispersion medium and form around particles of the protective hydrate shell. Glycyrrhetinate and glucuronic acid, having a high adsorption capability, attach the oil particles and air molecules to the released radicals glycyrrhizinic acid. Thus, the resulting concentrated emulsion (CMMA) all the particles of the dispersion medium are in physico-chemical bonding and steady state, which is beneficial when using emulsion fruit and berry plants. The use of activated water with a pH of 8.2 increases the wettability of the treated plants emulsion, and hit her on the body of the insect pest,the ear of the applied film of the emulsion due to the formed bubbles increase the surface film on the treated surface. Released at this radicals glycyrrhizinic acid react with pathogens scab, brown rot, leaf spots, American powdery mildew and other, showing thereby the fungicidal properties of the emulsion.

The fraction of electrochemically activated water used for mineral-oil emulsions, get on the setting of known construction, including capacity, in the middle of which is mounted a semi-permeable partition (for example, filtered chlorin tissue). On both sides of the baffle installed carbon electrodes connected to the source of direct current from a rectifier after the tank is filled with tap water (see W-l "engineering and science" 1981, N12, page 13, serial installation UEV-4 p. 11 - "Persistent foam at work", 3rd column; 5, 1985, pp. 43-44 "Around "living" water").

Example 1. Industry oil 60%, licorice root extract 10%, emulsifier OP-10 6%, water activated - the rest. Death on the treated surfaces: (a) fungi of 99.5%; (b) eggs of pests and 99.8%; C) time of exit gas from the formation of bubbles in the film emulsion to 20 hours.

Example 2. Industry oil 65%, licorice root extract 6A pests of 99.5%; at the time of the exit gas from the formation of bubbles in the film emulsion 12 hours.

Example 3. Oil industrial 62,5%, licorice root extract 7%; emulsifier OP-10 of 6.5%, water activated - the rest. Death on the treated surfaces: (a) fungi 99%; b) eggs of pests and 99.8%; C) time of exit gas from the formation of bubbles in the film emulsion 16 hours.

The present invention improves the efficiency of combating such pests as San Jose scale, the acacia), to destroy the eggs of mites, aphids, medanic, leafrollers, moths, and also used as a fungicide to combat wintering stages antractica berry crops, American powdery mildew on gooseberries, as well as Apple scab and other diseases, to expand the range of actions for crops such as strawberries, grapes. Reduced time full biological degradation by microorganisms and bacteria solution of mineral oil emulsion to 8-10 days.

Mineral-oil emulsion to combat plant pests, including mineral oil, surfactant and water, characterized in that as the surfactant contains licorice root extract, as well as in igator OP-10 in the following ratio of components, wt. %:

The mineral oil - 60-65

The licorice root extract - 6-10

Emulsifier OP-10 - 6-10

Activated positively charged water - the Rest

 

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