Combined pesticide preparation and the method of controlling diseases and pests of plants

 

The invention relates to agriculture. Combined pesticide drug to combat diseases and pests of plants contains as active substance chlorosis copper. As a dispersant concentrate sulfite-alcohol stillage (PRS) or sulfite-yeast brew. It is a water suspension concentrate with a solids grain size of 2-4 μm. Additionally contains as active substance sulfur, and nonionic surface-active agent, carboxymethylcellulose and water in the following ratio, wt.%: sulfur colloid 27-40, chlorosis copper 8-15, sulfite-alcohol bard (PRS) or sulfite-yeast mash (RRT) 2,0-4,0, nonionic surfactants, 0.5 to 2.0, carboxymethyl cellulose Na salt, 5% solution 18-20, water to 100. The way to combat diseases and pests of plants by processing the above drug. The invention improves the efficiency of action of the drug. 2 N. and 7 C.p. f-crystals, 7 tab., 1 Il.

The invention relates to chemical means of plant protection, namely to the combined pesticide preparation containing as active ingredients the diseases of plants and phytophagous mites (see N. N. Melnikov and other Reference “Pesticides and plant growth regulators”, 311 S. 418, - M.: Chemistry, 1995).

The most common formulation is a wettable powders, pastes, dusty. Used precipitated colloidal sulphur released during the cleaning of coke and other gases.

Consumption of colloidal sulfur or sulfur in the form of wettable powder to combat plant diseases and mites is from 4 to 15 kg/ha depending on the treated culture and subject to destruction.

In accordance with the applicable standard (TC-113-04-322-00) colloidal sulfur contains 75 percent sulfur and not more than 25% moisture.

Chlorosis copper is used to control diseases of fruit, berry and vegetable crops in the consumption rates of 1.6 to 7.2 kg/ha. the Most common preparative form of wettable powder, which, in addition to the main active ingredient, contains a dispersant concentrate sulfite-alcohol stillage (PRS) or sulfite-yeast brew (RRT) - 6-8%, and a small amount of impurities and moisture GOST 13200-75 and N. N. Melnikov. Pesticides, chemistry, technology and application. - M.: Chemistry, 1987, S. 667).

There are a large number of combined preparations containing chlorates copper as one of the components, with other fungicides, for example, serotin (sulfur + zineb) (see, for example, N. M.Golyshin “Fungicides”, - M.: Kolos, 1993, and the Catalog of Chemical plant protection”, Cherkassy, 1988).

Also known is the preparation that is prepared by the joint grinding colloidal sulfur (75%) and tincalconite (25%) auth. mon. THE USSR # 138113, A 01 N 59/02, 1961. Typically, these mixed preparations are made in the form of wettable powders.

It is known the use of tank mixtures wettable powders sulfur oxychloride and copper in the ratio of 5:1 (N. M.Golyshin “Fungicides”, - M.: Kolos, 1993). In addition, in the directory “European Direktory of Agrochemical Products” V. L. “Fungicides” Third Edition, the Royal Society of Chemistry, 1988, contains information about the combined drugs on the basis of copper oxychloride and sulfur, which produce and sell in different countries of Europe, for example, the drug “Zwamdood”, wettable powder containing 20% of copper oxychloride and 40% sulfur, the drug “Cupromix” (20% XOM + 34% sulfur) and other recommended as a means to combat diseases of fruit, berries, tomatoes, potatoes and other

The formulations of these combined drugs in the cited source is not shown, however, wettable powders, in addition to the active ingredients, contain a filler, a dispersant, and enabled operatory can be varied, including those specified in the formulation wettable powder of copper oxychloride, i.e., PRS or RRT (see above, and also N.N. Melnikov “Pesticide chemistry, technology and application”, - M.: Chemistry, 1987, S. 34). Thus, the closest analogue of the combined preparation according to the present invention is a combined preparation containing as active ingredients sulfur and chlorosis copper, in the form of a wettable powder.

The disadvantages of these preparative forms are that they produce dust, become caked or concourse with the formation of large aggregates that have low dispersion and stability of the suspension, have low adhesion of particles on the surface of cultivated plants, which reduces the effectiveness of drugs on diseases and pests of plants.

Objects of the present invention are new preparative form of suspension concentrate - based sulphur and copper oxychloride with improved physico-chemical and consumer properties and greater efficiency, as well as a way of combating diseases and pests of plants using this combined suspension of the drug.

Combined suspension ª 27-40

2. Oxychloride of copper (XOM) 8-15

3. Sulfite-alcohol bard (PRS) or

Sulfite-yeast mash (RRT) 2,0-4,0

4. Nonionic surface-active

substance (OP 7, OP-10) or Neonol AF 9-10 0,5-2,0

5. Carboxymethylcellulose, Na-salt

(CMC)-5% solution 18-20

6. Propylene glycol or

Ethylene glycol 0-(0-8)

7. Antifoam (silicone) 0-0,5

8. Antiimperial AI-4P 0-3,0

9. Water to 100

As dispersing and stabilizing substances used PRS or the RRT, as a stabilizer OP - 7 and other neinogennye surfactant, thickener, improving storage conditions, as well as to improve the adhesive properties used CMC to improve retention of the drug at low temperatures is used ethylene glycol or propylene glycol, to reduce the formation of foam used antifoam (silicone).

The drug is produced by mixing and fine grinding of all components (or parts) in the aquatic environment on the homogenizer, a ball or bead mill.

After grinding and homogenization is formed suspension concentrate, stable during storage, with high physical-chemical properties: dispersion of particles (dcf. TOD.) is 2-4 microns; stability 1% water is nsii 6-7, bulk preparation of 1,2-1,25 g/cm3.

As the suspension stabilizer, which can increase the shelf life of the drug and improve the quality of the suspension by spraying the formulation can be added up to 3% of antiimperial AI-4P, which is a mixture of high-molecular synthetic fatty alcohols fraction of C8-C18, or C10-C20 with non-ionic surfactant OP-7 (ed. mon. No. 333913, BI No. 12, 1972).

In addition to the drug may also be added preservative such as formaldehyde in the form of a 10% aqueous-alcohol solution.

The biological activity of a new combined suspension drug was superior as separate components, taken in the same concentration, and wettable powder containing as active ingredients sulfur and chlorosis copper, taken in the same proportions and quantities. As shown by the experiments, after storage for 6,5 months the drug was kept high effectiveness against plant diseases, and against spider mites. Remained unchanged physical-chemical properties that cannot be assumed in advance as information about the combined drugs on the basis of copper oxychloride and sulfur containing them, their chemical and physical the parathas with each other in the aquatic environment, leading to change of physico-chemical properties and, as consequence, to decrease in biological activity could not be ruled out.

New combined suspension the drug has a broad spectrum of action, combining the spectra of the actions of its constituent components, and superior technical performance standards, including the potato against late blight - 15-20%, currant against powdery mildew by 25-30%, and against mites by 40-45%.

The drug has a higher compared to HOM a fixation on the surface of plants, mainly due to the high degree of dispersion and high specific surface of the particles of active substances, as well as the introduction of recipe components, such as Cmcia-4P.

Improved adhesion is an important factor contributing to the increase in technical efficiency of the drug, as it has contact action.

Suspension drug package in double sealed plastic (film 150-180 µm) packaging in the form of a small dosage of bags that are very suitable for use in personal subsidiary farms, gardens, vegetable gardens. In this package the drug withstands the storage of more than 6.5 months at a temperature of +25° to +35 days.

High efficiency suspension of the drug has almost doubled to reduce the rates of consumption compared with the standards and thus reduce the cost of processing plants to fight against diseases and pests, and to make it more environmentally friendly.

The ratio of active ingredients (XOM:Sulfur) in the product can vary from 1:2 to 1:4, and their total number is in the range of 40-50 wt.%.

For processing plants, the preparation is diluted with water to obtain a suspension containing 0.4 to 0.8% of the drug.

When the ratio of Sulfur:XOM=2:1 active ingredients take in the following quantities by D. C.

Sulfur colloid 27-30%

HOM of 13.5-15%

With a ratio of 3:1

Sulfur colloid 30-36%

HOM 10-12%

When the ratio of 4:1

Sulfur colloid 32-40%

HOM 8-10%

Accessories for all three variants can change as outlined in the above composition of the combined suspension of the drug.

Example 1. Receiving the drug.

Colloidal sulfur and 90% wettable powder of copper oxychloride are mixed in the ratio 2:1, 3:1 and 4:1 current substance in such quantities that the total content of the mixture according to the current matter was, respectively, wt.%: a 40.5-45, 40-48 and 40-50. Separate the water and stirred with a stirrer. All the components are mixed, homogenized and milled in a ball or bead mill until the particle size of 2-4 μm (30-40 minutes). The temperature of mixing and grinding components can withstand up to +30°C, +35°C. Then, to the obtained mixture is added 5% aqueous solution of Na salt of carboxymethyl cellulose, and the entire mixture is again homogenized for 15 to 20 minutes

To the resulting mixture can be added antifreeze - ethylene glycol or propylene glycol in the amount of 5-8 wt.%, the silicone antifoam 0.5 wt.%, antiimperial - to 3.0 wt.%, as well as a preservative. All additional components are thoroughly mixed with the main structure.

Samples containing anti-freeze do not freeze at t=-10, -15°C for 30 days.

Sample # 3, do not contain anti-freeze, freeze at this temperature, but after thawing at room temperature was maintained their physico-chemical properties.

The compositions of samples derived drugs is presented in table No. 1.

Example 2. Determination of the stability of aqueous suspensions.

The determination of the stability of the suspensions was carried out on the universal device UPAS - 2. Stability indicators To% timewas calculated by the formula:

P- the weight of the float in suspension after settling, in grams by the time t (GOST 16484).

According to the international standards=30 minutes

The results are presented in table 2 and in the drawing.

From the obtained results shows that the stability of aqueous suspensions of a new drug far exceeds the standards and the standard value (80%), qualified for suspension concentrates GOST R-99 “Pesticides” (General specifications).

Example 3. The determination of the degree of dispersion and specific surface area.

The determination was performed sedimentations analysis curves of the distribution of particle sizes. Control analyses was performed using an optical microscope with high resolution.

Average particle diameter was calculated by the formula:

where di is the average size of separate fractions of microns;

mi - the content of these fractions in the product in fractions of a unit.

The degree of dispersion (particle size) is in the range of 2-4 μm, Specific surface area Sbeatswas calculated by the formula:

TV.F.the density of the solid phase of the drug in g/cm3(see B. N. according to the and other the Collection of Chemical plant protection”, vol.4, Moscow, 1973, page 24).

Results for individual samples are presented in table No. 2

Example No. 4. The determination of the degree of uderzhivaemoi (adhesion) of drugs.

On wax-coated standard glass plates were applied by spraying the tested drugs. After drying them at room temperature and weighed. Then the plates coated with the preparations were placed in a special sprinkler, in which they were located within 10-15 minutes By the difference of weight plates before and after irrigation were determined % uderzhivaemoi. The results are presented in table 2.

As the table shows, the highest adhesion 85-90% suspension concentrate (sample No. 9) with the degree of dispersion of the dcf. TOD.=2.5 μm and a specific surface area of SID=26000 cm2/year / lowest-colloidal sulfur to the degree of dispersion of the dcf. TOD.=1500-2000 mm.

The table shows also that the pH value of a 1-percentage aqueous suspensions for all drugs is almost the same, that is, a suspension concentrate this indicator is the same as the standards.

This svidetelstvo the other hand, pH=6-7 indicates a neutral environment that determines the absence of phytotoxicity in the processing of green plants.

Example 5. Evaluation of biological activity of the new suspension of the drug in greenhouse conditions.

The tests were carried out in the greenhouse “Christmas tree” Domodedovo district, Moscow region on flower crops (roses, carnations, chrysanthemums, Kala) in summer and autumn 2002 by the method of two-time processing in accordance with the terms of the occurrence of major diseases and spider mites.

Before preparing the working suspensions samples, packaged in 40 g, were mixed manually in a plastic packaged, transported in a vessel with a small amount of water were mixed, and then diluted with water to obtain suspensions of the desired concentration.

Processing plants was performed using hand sprayer at a flow rate of 0.5 l 10 m2twice: the first time the occurrence of diseases and mites, even before the appearance of the colored buds, the second time is 10-12 days. On the Calla lilies to dividing rhizomes, diseased rhizomes were purified from bacterial rot and soaked them in the test suspensions for three hours, and then planted in pots. When paaul is aktivnosti conducted during the flowering period on commodity output, the number of which corresponds to the total efficiency of suppression of examinees drugs destruction of plant diseases and spider mite. The test results presented in table No. 3.

Calculated using the figures in this table the coefficient of synergy on the Colby formula for the new suspension of the drug mixing ratio 4:1 is in the range of 1.50-1,89 relative units, i.e. the activity of the drug is significantly greater than the total activity.

The calculation was performed according to the Colby formula used to determine the coefficients of additivity and the results are shown in table 7.

where e is the efficiency in %, With a concentration in %, And sulfur; B is chromium; CAnd=80%; CB=20%.

Example of calculation (at the normal rate of 40 g / 10 l)

Thus, K. C. to a suspension of the drug in the ratio of 4:1 is in the range of 1.50-1,89 relative units.

Example 6. Comparative tests of the suspension of the drug on flower crops in greenhouses.

In the conditions of example 5 comparative tests of the new suspension of the drug and wettable powder containing the train test suspension of the drug after storage for 6.5 months at t=+25°C - 35°C. the test Results are presented in table No. 4.

Example 7. Testing of the new combined suspension of the drug in the field.

The tests were carried out on plots horticultural society “agrarian chemistry” Domodedovo district, Moscow region against late blight on potato and against powdery mildew and spider mites on black and red currant. As a reference on potato against late blight used 90% wettable powder of copper oxychloride, and currant against powdery mildew and mites colloidal sulphur.

The tests were carried out using a dual-processing with an interval of 7-10 days. The potatoes used a variety Zhukovskiy early in phase 18-20 leaves; black currant - cultivar Seedling Dove”, “Mystery”, in red currant - “Natalie”, “Sulkowska”.

Before preparing the working suspensions drugs slightly mixed manually in a package, then transferred into the container, where trained first concentrated to 0.8% suspension. Then half of the volume of the suspension was diluted in water to a concentration of 0.4%. All suspensions were homogeneous and stable. Thus prepared suspension of the reference drugs. Spraying was carried out manually apricena in tables 5 and 6.

Tests showed that the suspension drugs on technical efficiency is much higher than the standards. All samples have a high consumer properties, is easy to handle and possess a wide spectrum of biological activity.

Tests showed that the Suspension concentrate, both before and after storage significantly exceeds wettable powder for efficacy against disease and spider mites.

Claims

1. Combined pesticide drug to combat diseases and pests of plants, containing as active substance chlorosis copper, and as a dispersant concentrate sulfite-alcohol stillage (PRS) or sulfite-yeast brew, characterized in that it represents a water-suspension concentrate with a solids grain size of 2-4 μm and further comprises as an active prophetic ratio of components wt.%:

Sulfur colloid 27-40

Chlorosis copper 8-15

Sulfite-alcohol

bard (PRS) or

Sulfite-yeast

mash (RRT) 2,0-4,0

Nonionic surfactant of 0.5-2.0

Carboxymethylcellulose

Na-salt, 5% solution 18-20

Water To 100

2. Combined drug to combat diseases and pests of plants under item 1, characterized in that it further comprises propylene glycol or ethylene glycol in the amount of 5-8 wt.%.

3. Combination drug under item 1 or 2, characterized in that it further comprises a defoamer silicone in an amount of not more than 0.5 wt.%.

4. Combination drug under item 1 or 2, characterized in that it further comprises antiimperial AI-4P, which is a mixture of high-molecular synthetic fatty alcohol fractions of C8-C18or10-C20with nonionic surfactants, in an amount not more than 3.0 wt.%.

5. Combination drug under item 3, characterized in that it further comprises antiimperial AI-4P, which is a mixture of high-molecular synthetic fatty alcohols fraction C8-C18or10-C20with nonionic surfactants, in an amount not more than 3.0 wt.%.

6. Combination drug under item 1 or 2, ex is respectively.

7. Combination drug under item 3, characterized in that the quantities of active substances - sulphur and copper oxychloride are in the ratio(2÷4):1 respectively.

8. Combination drug under item 4, characterized in that the quantities of active substances - sulphur and copper oxychloride are in the ratio(2÷4):1 respectively.

9. The way to combat diseases and pests of plants by their treatment drugs, characterized in that use combined preparation according to any one of paragraphs.1-8, which handles the plants in effective amounts depending on the degree of their diseases and pests.



 

Same patents:

The invention relates to agriculture, in particular to gardening

The invention relates to formulations water-soluble form of elemental sulfur, which can be applied as a fungicide, acaricide for the protection of agricultural and forest plants

The invention relates to chemical means of protection of grain crops from weeds, and in particular to compositions comprising chlorsulfuron and dicamba

The invention relates to systems of surfactants for liquid water or water-organic compositions containing mainly organic and aqueous phase in the form of a microemulsion

The invention relates to agriculture, namely, to pesticidal compositions

The invention relates to new salts of the compounds of formula [(H-B)+]nAnwhere ANDnrefers to the structure of formula (IIb) or (IIIb), where each of the radicals R independently of one another selected from the group including1-C24alkyl and C7-C24alkylaryl, m denotes a number from 0 to 5, n represents a number from 1 to 3, R represents a number from 0 to 3, q represents a number from 0 to 3 and r represents a number from 0 to 4, s represents a number from 1 to 3 and (H-B)+denotes the cation of the formula (I), where R4selected from the group including7-C19alkyl and C7-C19alkenyl-CH2- each radical R5independently from each other represents C2-C4alkylen straight or branched chain, and x denotes a number from 1 to 50 and y denotes a number from 0 to 50

The invention relates to agriculture, namely herbicides in weed control

The invention relates to entomological adhesive compositions used in environmentally friendly biotechnological tools for the protection of cultural and forest plants from pests

The invention relates to agriculture, namely chemical products for agriculture

Fungicidal tool // 2211563
The invention relates to agriculture and can be used for combating fungi and bacteria that cause plant diseases, and for regulating plant growth

The invention relates to growth funds derived Redentore[3,4-C]pyridinones and 3.4 (I) and can be used to increase yield and oil content of sunflower seeds and collection of oil per unit area of his crops

The invention relates to pesticide compositions and/or compositions that regulate the growth of plants and/or insects

The invention relates to systems of surfactants for liquid water or water-organic compositions containing mainly organic and aqueous phase in the form of a microemulsion
Up!