RU2638044C1 - Composition for treating agricultural crop seeds - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: composition for seed crops as active ingredients contains, g/l: acetamiprid 80-170, fludioxonyl 20-40, cyproconazol 5-10, 4-chlorophenylacetic acid 0.1-0.3, an alkylpoysaccharide with a carbon chain C₈-C₁₀ 30-100, and auxiliary supplements in amounts up to 1 l of the whole composition. As auxiliary additives, water, an antifreeze, a wetting and adhesive agent, a dye, a dispersant, a defoamer, a stabiliser-thickener, and a biocide are used.

EFFECT: reducing the retardant effect of the composition on seeds.

2 cl, 3 tbl

Description

The invention relates to a composition for protecting seeds from damage by pests and pathogenic fungi, as well as to enhance germination and prevent inhibition of plant growth at the initial stage of vegetation.

A known composition for seed dressing containing tetramethylthiuram disulfide (TMTD) as an active ingredient, technical lignosulfonates, OP-7 or OP-10, aerosil, lacris, sodium tripolyphosphate, red pigment 5C, ethylene glycol and water as excipients [RU Patent No. 2282961, 2005].

A means for presowing treatment of seeds of agricultural crops is known, which is a tank mixture of an aqueous disinfectant solution, which is used as Tebu 60 or TMTD, or Premis-Total, and complex microfertilizers in the chewable form of Aquamix. To this mixture, in various versions of the claimed agent, are optionally added nicotinic acid, arachidonic acid, succinic acid, glycine, salicylic acid, para-aminobenzoic acid, silk, copper sulfate, or a combination thereof (RU 2350063, 2009).

A known composition for seed dressing in the form of a suspension concentrate containing tetramethylthiuram disulfide or carbendazim or Tebuconazole as an active ingredient, auxiliary components, and also contains a synergist, which is used dimethyl-alkyl benzylammonium chloride or tetrabutylammonium iodide in an amount of 1-12 wt. % (RU No. 2326535, 2008).

The disadvantages of this drug are its instability during storage and the formation of dust during sowing pickled seeds, lack of effectiveness against a number of pathogens of cereal diseases.

A composition is known for controlling plant germination and growth and controlling plant diseases, comprising a combination of at least one plant growth regulator selected from paclobutrazole, ciproconazole, and others and at least one plant activator selected from acibenzolar-S- methyl, probenazole, harpin protein and extract of Reynoutria sachalinensis (reysa) and additionally containing one or more fungicides selected from the group including fludioxonil and other RU 2444896 publ. 03/20/2016.

Known seed dresser "Maxim Extreme" containing the active substances fludioxonil and ciproconazole. It is used against various types of smut, rot, mold. Producer of "Syngent", Switzerland.

Disadvantage: action only against fungal pathogens. The absence of agents in the composition of the drug effective against a wide range of pests, including harmful insects.

Known seed dresser "Select Max", KS from LLC "Syngenta". Active ingredients thiamethoxam (insecticide) 125 g / l, fludioxonil 25 g / l and tebuconazole 15 g / l (fungicides). It is used against various species of smut, rot, mold of seeds, as well as pests: ground beetles, fleas, cereal flies, wireworms, etc.

Despite the fact that the above drugs can effectively suppress the activity of pests and the development of pathogenic fungi, while preserving the seed from spoilage, the active substances that make up their composition can have a negative effect on the development (growth) of cultivated plants in the initial period of vegetation. Studies have shown that the fungicides that make up these drugs, namely fludioxonil and ciproconazole, inhibit plant growth in the initial period of vegetation, i.e. act as retardants.

Closest to the technical nature of the claimed invention is the treater "King Combi" - active ingredients: acetamipride, 100 g / l + fludioxonil, 34 g / l + ciproconazole, 8.3 g / l. LLC Agro Expert Group. Plant protection products »Etchants. The combined insectofungicidal disinfectant for cereal seeds is used to protect against a wide range of pests and diseases, has a long period of protective action both for pests and diseases. An insecticidal component with a pronounced systemic effect is evenly distributed in the soil, and also penetrates into the developing parts of plants, providing protection of seedlings from pests that damage the root system and the aerial part. Promotes "stress tolerance" of plants grown from seeds treated with the drug. Exceptional effectiveness against root rot of various etiologies. Savings due to the partial rejection of insecticidal and fungicidal treatments during the growing season.

However, despite the fact that the above drugs can effectively suppress the activity of pests and the development of pathogenic fungi, while preserving the seed material from spoilage, the active substances that make up their composition can have a negative effect on the development (growth) of cultivated plants in the initial period of vegetation. Studies have shown that the fungicides that make up these drugs, namely fludioxonil and ciproconazole, inhibit plant growth in the initial period of vegetation, i.e. act as retardants.

The objective of the invention is to provide a composition for dressing seeds with improved antiretardant properties and preserving the properties to effectively suppress pest activity and the development of pathogenic fungi, preserving seed material from spoilage, while maintaining high germination of seed material and growth in the initial growing season, expanding the arsenal of seed dressing agents for presowing seed treatment of crops.

EFFECT: reduced retardant action of the composition for seed treatment.

The technical result is achieved in that the composition for seed dressing, crops containing the active substances acetamipride, fludioxonil and cyproconazole according to the invention additionally contains 4-chlorophenylacetic acid and an alkyl polysaccharide (polyglucoside) with an alkyl group length of from 8 to 10 carbon atoms and are acceptable in rural farm auxiliary additives in the following ratio of components, g / l:

acetamipride 80-170

fludioxonil 20-40 cyprocanazole 5-10 4-chlorophenylacetic acid 0.1-0.3 flkyl polysaccharide 30-100 auxiliary additives rest

Moreover, as auxiliary additives, the composition may contain water, antifreeze, wetting agent, liquid dye, dispersing agents, antifoam, stabilizer, thickener and biocide.

The difference between the claimed composition from the known one is the joint use of 4-chlorophenylacetic acid and an alkyl polysaccharide with insecticidal-fungicidal components of the claimed composition. The combination of 4-chlorophenylacetic acid, which has a growth-regulating property with a polymeric nonionic surfactant, an alkyl polysaccharide (polyglucoside), enhances the growth-regulating effect of the composition and reduces the retardant activity of the fungicidal components of the composition (fludioxonil and ciproconazole). The resulting composition, along with a protective effect against a wide range of pests and diseases, has a pronounced positive effect on the germination of seed material and the further growth of plants.

The seed dressing composition was prepared as a suspension through the primary pulp stage, when the solid phase, which is the solid components of the mixture (active ingredients, 4-chlorophenylacetic acid), is crushed in a dispersing device in the presence of an optimal amount of the liquid phase (water, dispersing agents, alkyl polysaccharide ( polyglycoside) and antifoam), followed by simple mixing of the resulting suspension with auxiliary substances - antifreeze, wetting agent, liquid dye, stabilizer for thickener, and correlation of the concentration of active substances with water. The compositions are shown in table 1.

Preferred mass ratios of the active ingredients in the preparation are: acetamipride in an amount of 80-170 g / l, fludioxonil - 20-40 g / l, ciproconazole - 5-10 g / l. Preferred mass ratios of antiretardant additives in the preparation are 4-chlorophenylacetic acid in an amount of 0.1-0.3 g / l, alkyl polysaccharide 40-60 g / l.

The invention is illustrated by the following examples.

The retardant activity of fungicides (fludioxonil and ciproconazole) was studied, see table. 2.

* 4-CFCA - 4-chlorophenylacetic acid

From table 2 it follows that in the case of both separate and joint use of DV, phytotoxicity is observed. Fludioxonil slightly reduces germination and inhibits root and shoot growth. Cyproconazole significantly reduces germination and inhibits root and shoot growth. When used together, germination is reduced, root and shoot growth slows down, and there is a mutual enhancement effect of the undesirable effect.

Adding Atlox AL2575 50 g / l to the mixture increases germination to control values, slightly enhances growth. In addition, the effectiveness of the drug increases due to better penetration into the seed tissue.

Adding 4-CFCs to the mixture increases germination to control values, slightly enhances growth. However, the use of only one additive - either Atlox AL2575 or 4-CFCs - does not provide growth enhancement to the control level, i.e. the introduction into the mixture of only one additive does not contribute to the full achievement of the technical result.

Adding two drugs - Atlox AL2575 and 4-CFCs - to the mixture significantly increases germination, enhances growth. The use of additives Atlox AL2575 30 g / l and 4-CFC 0.1 g / l helps to increase germination to control values, increase growth compared to using only one additive, but do not provide root and shoot growth to the control level.

The use of additives Atlox AL2575 50 g / l and 4-CFC 0.2 g / l, or Atlox AL2575 30 g / l and 4-CFC 0.3 g / l helps to increase germination above control and root and shoot growth to control values, those. provide full achievement of the technical result. An increase in the dose of additives (Atlox AL-2575 50 g / L + 4-CFC 0.3 g / L and Atlox AL-2575 70 g / L + 4-CFC 0.3 g / L) increase seed germination and increase growth by compared to control.

Thus, the presence of two fungicidal constituents of the composition (fludioxonil and ciproconazole) reduces germination and delays plant growth in the initial period of vegetation, i.e. these fungicides act as retardants. The use of additives Atlox AL2575 and 4-CFCs eliminates the retardant effect of DV. The achievement of the technical result is provided by the introduction of Atlox AL2575 and 4-CFCA additives in the composition in the amount of 50 g / l and 0.2 g / l, respectively.

The combined use of fludioxonil 30 g / l and ciproconazole 8 g / l increases the effectiveness of the drug compared to the use of individual active substances.

Adding Atlox AL2575 to the mixture increases the effectiveness of the drug.

Adding 4-CFCs to the mixture does not affect the effectiveness of the drug.

Adding Atlox AL2575 and 4-CFCs to the mixture increases the effectiveness of the drug.

To obtain the claimed composition for etching, we used: a) acetamipride - a contact, intestinal and systemic substance effective in controlling pests of wheat (bug bug, turtle beetle), wheat and barley (ground beetle, cereal flies, striped bread flea), tomatoes and cucumbers of the protected ground (greenhouse whitefly), potatoes (Colorado potato beetle, potato ladybug), as well as active against locusts and lepidopterans; two fungicidal substances, namely fludioxonil and cyproconazole, which inhibit the growth of mycelium and biosynthesis of sterols in fungal cells, thereby inhibiting the development of pathogens that cause winter wheat diseases (various rot, septoria, seed mold, typhoid snow mold), spring wheat (seed mold, various rot, hard smut, septoria, seed mold), spring and winter barley (various rot, dark brown and net blotch, powdery mildew), etc .; c) two biologically active substances, namely 4-chlorophenylacetic acid and an alkyl polysaccharide (polyglucoside) with an alkyl group length of 8 to 10 carbon atoms, exhibiting a pronounced antiretardant effect in the mixture, increasing the seed germination energy and promoting the normal development of plants in the initial period of vegetation. Acetamipride is a manufacturer of Zhechem (China). It is an insecticide. Belongs to neonicotinoids. Fludioxonil is a manufacturer of Zhechem (China). It is a fungicide. Belongs to the class of phenylpyrrole compounds. Cyproconazole is a manufacturer of Zhechem (China). It is a fungicide. Belongs to the class of triazole compounds. 4-Chlorophenylacetic acid (plant growth regulator) - Zhechem (China). Atlox AL2575 (alkyl polysaccharide) - manufacturer Croda Europe Ltd (Import). A block copolymer of ethylene oxide and propylene oxide (dispersing agent), for example Tensiofix DB08 - manufacturer Omnichem Amine salt of tristyrylphenylpolyglycol ester of phosphoric acid (dispersing agent), for example Soprophor FL - manufacturer RhodiaChem. Com. Propylene glycol (antifreeze) - manufacturer (import, China). Polyvinyl alcohol (wetting agent) - manufacturer Hebei Smart Chemicals Co. Ltd. Rhodamine B (dye) - manufacturer ALL-CHEMIE LTD (India). Penta 465 (antifoam) is a manufacturer of Penta-91 LLC. Rhodopol 23 (thickener-stabilizer, a derivative of xanthan gum) - manufacturer RhodiaChem. Com. 1,2-Benzothiazolin-3-one (biocide) - import.

Example. We studied the biological effectiveness of formulations 1-4, table. 3

Note: FUSASP - Fusarium spp.

BIPOSO - Bipolaris sorokiniana

ALTESP - Alternaria spp.

From table 3 it follows that Composition 1 is optimal in terms of a set of effects: reducing phytotoxicity and increasing efficiency compared to the standard. Composition 2 exhibits the best fungicidal activity, is inferior in phytotoxicity to Composition 1. Compounds 3, 4, due to a decrease in the dose of active substances, show worse efficacy, but exceed the standard and Composition 1 in terms of phytotoxicity reduction.

Claims (8)

1. A composition for dressing seeds of agricultural crops containing active ingredients acetamiprid, fludioxonil and ciproconazole, characterized in that it additionally contains 4-chlorophenylacetic acid and an alkyl polysaccharide with an alkyl group length of 8 to 10 carbon atoms and agricultural additives suitable for agriculture in the following ratio of components, g / l: acetamipride 80-170 fludioxonil 20-40 cyproconazole 5-10 4-chlorophenylacetic acid 0.1-0.3 alkyl polysaccharide 30-100 auxiliary additives rest 2. The composition according to p. 1, characterized in that as auxiliary additives it contains water, antifreeze, wetting agent, liquid dye, dispersing agents, antifoam, stabilizer, thickener and biocide.