NO750117L - - Google Patents

Description

The present invention relates to a herbicide which contains a mixture of active substances. L}$ ltCi& ?

It is known that benzothiadiazine dioxides (DT-PS 1 542 836) and substituted phenoxyacrylates (Dérwent Central Patent Index, Section G, AGDOC'/ \l971, 40th week, Minutes No. 64 4915-C, and Patert schnellbericht Teil B, Minutes B 32-278/68) has a herbicidal effect. However, their herbicidal action is litho.

It was found that a mixture of a

a) connection with the formula

where R, is a lower alkyl, or salts thereof, and

b) a compound with the formula

where R is an optionally halogen- or methyl-substituted cyc«

1'oalkyl radical with 3-12 C atoms, X means the same or different substituents from the group halogen, methyl and methoxy, and where n = 0 to 3,

haren better herbicidal effect than the individual active substances.

The mixtures may contain one or more compounds with

the formula a and compounds with the formula b.

The mixing ratio can be chosen as desired. The mixing ratio between the active Istbffer a and b is, for example, 0.1 to 10 parts by weight a to 1 part by weight b, preferably 0.3 to 3 parts by weight a to 1 part by weight b.

The amounts used of the agents according to the invention may vary. The amount depends mainly on the nature of the desired effect. The amount used is usually between 0.1 and 30 or more, preferably 0.2-6 kg of active substance per hectare. The agents according to the invention can be used, among other things, before planting, after planting, before sowing, before the plants emerge from the soil, after the plants emerge from the soil or while the cultivated plants or the unwanted plants are about to emerge from the soil, and the agents can be used one or more times.

The mixtures are suitable for use in useful plants, for example Oryza sativa, Triticum spp., Hordeum vulgare, Secale cereale, Zea mays, Sorghum spp., Glycine maS^ Solanum tuberosum, Cucumis sativus, Pisum sativum, Allium cepa, Trifolium spp. .

The application takes place, for example, in the form of directly sprayable solutions, powders, suspensions or dispersions, emulsions, oil dispersions, pastes, dusty agents, flow agents or granules, by spraying, atomizing, spreading or pouring. The forms of application depend entirely on the purpose of application; the aim is always to achieve the finest possible distribution of the active substances according to the invention.

In the production of directly sprayable solutions, emulsions, pastes and oil dispersions, mineral oil fractions with agents for high boiling point can be used, such as kerosene or diesel oil, further coal tar oils etc., as well as oils of vegetable or animal origin, aliphatic, cyclic and aromatic hydrocarbons, for example benzene, toluene, xylene, paraffin, tetrahydronaphthalene, alkylated naphthalenes or their derivatives, for example methanol, ethanol, propanol, butanol, chloroform, carbon tetrachloride, cyclohexanol, cyclohexanone, chlorobenzene, isophorone etc., strong polar solvents, such as dimethylformamide, dimethylsulfoxide, n-methylpyrrolidone, water etc.

Aqueous forms of use can be prepared from emulsion concentrates, pastes or wettable powders (spray powders) or oil dispersions by adding water. In the production of emulsions, pastes/or care dispersions, the substances can be homogenized in water as ice or dissolved in oil or solvent using wetting, adhesive, dispersing or emulsifying agents. However, it is also possible to prepare concentrates consisting of active substance, wetting, adhesive, dispersing or emulsifying agent and any solvent or oil, which concentrates are suitable for diluting with water.

Among surfactants can be mentioned: alkali, alkaline earth, ammonium salts of ligninsulfonic acid, naphthalene sulfonic acids, phenolsulfonic acids, alkylarylsulfonates, alkyl sulfates, alkylsulfonates, alkali and alkaline earth salts of dibutyl naphthalene sulfonic acid, lauryl ether sulfate, fatty alcohol sulfates, fatty acid alkali and alkaline earth salts, salts of sulfated hexadecanols, heptadecanols, octadecanols, salts of sulfated fatty alcohol glycol ether, condensation products of sulfonated naphthalene and naphthalene derivatives with formaldehyde, condensation products of. naphthalene or naphthalene sulfonic acids with phenol and formaldehyde, polyoxyethylene octylphenol ethers, ethoxylated isooctylphenol, octylphenol, nonylphenol, alkylphenolpoly^-glycol ethers, tributylphenyl polyglycol ether, alkylaryl polyether alcohols, isotridecyl alcohol, fatty alcohol ethylene oxide condensates, ethoxylated castor oil, polyoxyethylene alkyl ether, ethoxylated polyoxypropylene, lauryl alcohol polyglycol ether acetal, sorbitol ester, lignin, sulfite -deluter and methylcellulose.

Powders, sprinkles and dust-like agents can be prepared by mixing or co-grinding the active substances with a solid carrier material.

Granules, for example encasing, impregnation and homogenous granules, can be produced by binding the active substances to solid carrier materials. Solid carrier materials are, for example, mineral materials such as silica gel, silicic acids, silica gels, silicates, talc, ka&Tin, attaclay, limestone, lime, chalk, bolus, loess, clay, dolomite, diatomaceous earth], calcium and magnesium sulfate, magnesium oxide, ground resins, fertilizers such as ammonium sulphate, ammonium phosphate, ammonium nitrate, urea and vegetable products such as cow meal, bark, wood and nut shells, cellulose powder and other solid carrier materials.

The preparations contain between 0.1 and. 95% by weight active substance, preferably between 0.5 and 90% by weight.

Oils of various types, herbicides, fungicides, nematocides, insecticides, bactericides, spore leemorvets, can be added to the mixtures or the individual active substances, possibly only immediately before use (tank mixture). g fertilisers, anti-foaming agents, (for example silicones), growth regulators, antivenoms or other herbicidally active compounds, such as

substituted anilines

substituted aryloxycarboxylic acids and their salts, esters and amides

substituted ethers

substituted arsomic acids and their salts, esters and amides substituted benzimidazoles

substituted benzisothiazoles

substituted benzthiadiazine dioxides

in-.

substituted benzoxazines

substituted benzoxazinones

substituted benzthiadiazoles

substituted biurets

substituted quinolines

substituted carbamates

substituted aliphatic carboxylic acids and their salts, esters and amides

substituted aromatic carboxylic acids and their salts, esters and amides

substituted carbamoyl allylthiol or -dithiophosphates substituted quinazolines

substituted cycloalkylaminocarbonthiolic acids and their salts, esters and amides

substituted cycloalkylcarbonamidothiazoles substituted dicarboxylic acids and their salts, esters and amides substituted dihydrobenzofuranyl sulfonates

substituted disulfides

substituted dipyridylium salts

substituted dithiocarbamates

substituted dithiophosphoric acids and their salts, esters and amides substituted ureas

substituted hexahydro-1-H-carbothioates

substituted hydantoins

substituted hydrazides

substituted hydrazonium salts

substituted isoxazolepyrimidones

substituted imidazoles

substituted isothiazolepyrimidones

substituted ketones

substituted naphthoquinones

substituted aliphatic nitriles

substituted aromatic nitriles.

substituted oxadiazoles

substituted oxadiazinones

substituted oxadiazolidinediones

substituted oxadiazinediones

substituted phenols and their salts, esters and amides substituted phosphonic acids and their salts, esters and amides

substituted phosphonium chlorides

substituted phosphonalkylglycines

substituted phosphites

substituted phosphoric acids and their salts, esters and amides substituted piperidines

substituted pyrazoles

substituted pyrazolealkylcarboxylic acids and their salts, esters and amTder substituted pyrazolium salts

substituted pyrazolium alkyl sulfates

substituted pyridazines

substituted pyridazones

substituted pyridine carboxylic acids and their salts, esters and amides

substituted pyridines

substituted pyridine carboxylates

substituted pyridinones

substituted pyrimidines

substituted pyrimidones

substituted (r~pyrrplidinecarboxylic acid and its salts, esters and amides

substituted pyrrolidines

substituted pyrrolidones

substituted arylsulfonic acids and their salts, esters and amides substituted styrenes

substituted tetrahydrooxadiazindiones

substituted tetrahydrooxadiazole'diones

substituted tetrahydromethanoindenes

substituted tetrahydrodiazole ions

substituted tetrahydrothiadiazine ions

substituted tetrahydrothiadiazole diones

substituted aromatic thiocarboxylic acid amides substituted thiocarboxylic acids and their salts, esters and amides substituted thiol carbamates

substituted thioureas

substituted thiophosphoric acids and their salts, esters and amides substituted triazines

substituted triazoles

substituted uracils

substituted uretidine diones.

The latter herbicidal compounds can, if desired, be used before or after the active single substances or mixtures according to the invention.

The addition of these agents to the herbicides according to the invention can take place in a ratio of 1:10 to 10:1. The same applies to oil, fungicides, nematocides, insecticides, bactericides, antivenoms and growth regulators.

The agents exhibit a strong herbicidal effect and can therefore be used as weed killers or to combat unwanted plant growth. Whether the agents are used as total or selective agents depends mainly on the amount of active substance used per

surface unit. •

By weeds or unwanted plant growth is meant here all monocotyledonous and dicotyledonous plants which grow in places where they are not wanted.

Thus, for example, the following plants can be combated with the agents according to the invention:

Plants of the grass family, such as

Rosaceae, e.g.

Fragaria

Cucurbitaceae, e.g.

Cucumis spp.

Liliaceae, e.g.

Allium spp.

Vitaceae, e.g.

Vitis vinifera

Bromeliaceae>eg

Pineapple satiyus.

Example 1

In a greenhouse, different plants at a growth height of 2-»18 cm were treated with the following active single substances and their mixtures as dispersion, emulsion, solution, in experimental boxes of size 20 x 20 x 15 cm:

In 3-isopropyl~2,1,3-benzothiadiazinone-(4)-2,2-dioxide

II 3-isopropyl-2,1,3-benzothiadiazinone-(4) ~2,2-dioxide sodium salt III 3-isopropyl-2,1,3-benzothiadiazinone~(4) .-2, 2 -<dioxide-dimethyl-amine salt

IV 3-isopropyl«2, 1,3-*benzothiadiazinone~ (4)«2,2-dioxide ethanolamine salt

V Cyclohexyl-3-(2,4-dichlorophenoxy)-acrylate,

in each case 0.25 - 0.5 - 0, 15' and 1.0. kg/ha active substance.

I + V, II + V, III + V in each case 0.25 + 0.75; 0.75 + 0.25;

0.5 +0.5 kg/ha active substance.

The soil was then put under water to a height of 10 cm.

After 12-18 days, it was established that the mixtures showed a better herbicidal effect at the same compatibility with the cultivated plants than the

.. some. active substances.

The test result will appear in the following table.

Example 2

In a greenhouse, different plants at a growth height of 3-25 cm were treated with the following active single substances and their mixtures as emulsion, dispersion or aqueous solution:

In 3-isopropyl-2,1,3-benzothiadiazinone-(4)-2,2-dioxide

II 3-isopropyl-2,1,3-benzothiadiazinone-(4)-2,2-dioxide sodium salt

III 3-isopropyl-2,1,3-benzothiadiazinone-(4)-2,2-dioxide-dimethylamine salt

IV 3-isopropyl-2,1,3-benzothiadiazinone-(4)-2,2-dioxide ethanolamine salt

V Cyclohexyl 3-(2,4-dichlorophenoxy) acrylate

in each case 1.0 - 1.5 - 3.0 and 4.0 kg/ha of active substance.

I + V, II + V, III + V, IV + V in each case 3 + 1,

1.5 + 1.5 kg/ha active substance,

and, .in comparison with

VI a-(2C3-dichlorophenoxy)-propionic acid

with 3.0 and 4.0 kg/ha of active substance

I +VI: 1.0 + 3.0 kg/ha active substance

II + VI: 1.0 + 3.0 kg/ha active substance.

The soil was then watered to a height of 10 cm. After 12-18 days, it was established that the mixtures showed a better compatibility with the cultivated plant and a better herbicidal effect than the substance VI and the mixtures I + VI and II + VI.

The test result will appear in the following table.

Example 3

In a greenhouse, test boxes were filled with loamy, sandy soil, and different seeds were sown. The soil was then treated with the following active single substances and their mixtures as granules: i 3-isopropyl-1,1,3-benzothiadiazinone-(4)-2,2-dioxide II. 3-isopropyl-2,1,3-benzothiadiazione-(4)-2,2-dioxide sodium salt III 3-isopropyl-2,1,3-benzothiadiazinone-(4)-2,2-dioxy-

r ~~dimethylami nsalt. ■ . }

IV 3-isopropyl-2,1,3-benzothiadiazinone~(4)-2,2-dioxide ethanolamine salt

V 'Cyclohexyl 3-(2,4-dichlorophenoxy)-acrylate

in each case 1.0 - 1.5 - 2.0 - 2.5 - 3.0 - 4.0 -3/5 5.0 - 6.0 - 7.5 and 10 kg/ha active substance

I + V, II + V, III .+ V, IV + V

in each case 1.5 + 1.0; 1.5[j- 1.5; 1.0 + 3.0; 3.0 + 1.0;

3.0 +2.0; 4.5 + 3.0 and 6.0 + 4.0 kg/ha active substance.

The soil was then put under water to a height of 10 cm. After 3-4 weeks it was established that the mixtures I + V, II + V, III + V, IV + V in each case 1.5 + 1.0; 1.5 + 1.5; 1.0 + 3.0; 3.0 +1.0; 3.0 + 2.0; 4.5 + 3.0, showed a better herbicidal effect at the same frequency with cultivated plants than the single active substances, and that the mixtures I + V, II + V, III + V, IV + V, in each case 6, 0 + 4.0 kg/ha active substance, showed a better compatibility/heat with Oryza sativa than the individual active substances in a quantity of 10 kg/ha.

The test result will appear in the following table.

Claims (1)

Herbicide, characterized in that it contains a mixture ava) a compound with the formula where is lower alkyl, or salts thereof, and b) a compound of the formula where R is an optionally halogen- or methyl-substituted cycloalkyl radical with 3-12 C atoms, x are the same or different substituents from the group halogen, methyl and methoxy, and n = 0 to 3.