DK156753B - FUNGICIDE AGENT CONTAINING A MIXTURE OF ((1,2-ETHAN-DIYLBIS (CARBAMODITHIOATO)) (2 -)) - MANGANE AND A PYRIMIDINE METHANOL, AND PROCEDURES FOR REDUCING FUNGUS INFECTIONS IN CORN CROPS - Google Patents

Description

DK 156753B

The present invention relates to a fungicidal agent for use in plant protection, and to a method of treating seeds of cereals to reduce the incidence or degree of fungal infections in the crops grown there.

The fungicidal agent of the invention is characterized in that it consists of or contains a combination of [[1,2-ethanediyl bis [carbamodithioato]] (2 -)] - manganese and a pyrimidine methanol of formula (I): x 10 à N—. ^ (OH-oh

Kf— / I

15 / VxCl

(oT

wherein X is chlorine or fluorine.

[[1,2-Ethanediylbis [carbamodithioato]] (2 -)] - manganese is a known compound (see U.S. Patent Nos. 2,504,404 and 2,710,822) bearing the generic name "Maneb". The pyrimidine methanol of formula (I) is also known and can be prepared by that of U.S.A. patent specification no.

1,218,623. The compound of formula (I) wherein X represents fluorine is preferred.

The novel agent of the present invention is surprisingly effective in controlling or controlling fungal infections in cereals. It is particularly active when used as a FRP dressing, as it regulates many significant diseases, including the following is a representative selection: 30 1. Swim Diseases in BVA (Hordeum vulgare)

Pyrenophora araminea Cochliobolus sativus Calonectria nivalis 35 Typhula incarhata Ervsiphe qraminis 2. Sweat in oats (Avena sativa)

Pvrenophora avenae 2

DK 156753B

3. Sweat in wheat

Cercosporel1 and herpotrichoides

Tilletia spp.

Calonectria nivalis 5 Leptosphaeri a nodorum In another aspect of the invention, there is thus provided a method for treating seeds of cereals to reduce the incidence or degree of fungal infections in the crops grown therein, which method is characterized by the fact that of the cereal varieties was added to the aforementioned novel agent.

Although the novel agent is preferably used in the form of a preparative treatment, favorable results have also been obtained by foil application of the novel agent at any time during the period from crop emergence to harvest, with the current treatment frequency and duration is determined by the degree of the current or expected disease. The components of the waist may be applied sequentially or simultaneously to the crop to be treated.

The pyrimidine methanol is preferably applied to the seeds in an amount of 0.05 to 0.8 g / kg of seed, particularly preferably 0.1 g / kg of seed for wheat and 0.2 g / kg of seed for barley, while "Maneb" is preferably sealed in an amount of 0.2 - 1.6 g / kg frp, particularly preferably about 0.8 g / kg frp. A preferred weight ratio of the pyrimidine methanol to "Maneb" is from 1: 2 to 1:32, preferably 1: 4 to 1: 8.

The novel agent of the invention is preferably used in the form of a fungicide composition comprising the pyrimidine methanol and "Maneb" in association with a non-phytotoxic inert carrier.

Such fungicide preparations may comprise from 5 to 90% by weight of active components and will usually be in the form of a wettable powder or powder.

Wettable powders or powders comprise an intimate mixture of the active components, one or more inert carriers and suitable surface-active agents. The inert carrier may be selected from various forms of attapulgitles, montmorillonitels, diatomaceous earth, kaolin, glimmers, talc and purified silicates. Effective surfactants can be found among the sulfonated lignins, the naphthalene sulfonates and the condensed naphthalene sulfonates, the alkyl succinates, the alkylbenzenesulfonates, the alkyl sulfates, and the nonionic surfactants, such as

DK 156753B

3 ethylene oxide addition compounds of phenol. Used for treating the wound, the compositions of the invention will also preferably comprise an adhesive for bonding the agent to the veins, a pigment to indicate whether a particular portion of the seed has been treated or not, an insecticide and a bird rejection agent.

For illustration of wettable powders within the scope of the invention, powders of the following composition may be provided:

Wettable powders 10% by weight

Pyrimidine Methanol 2-20 "Maneb" 15 - 50

Insecticide 0-40

Bird repellent 0-30 15 Wetting agent (s) 2-10

Dispersant 0-10

Anti-caking agent 1-10

Adhesive 0-5

Pigment 0-10 20 Inert material (s) to 100

For illustration of powder compositions of value in connection with the invention, compositions having the following composition may be given: 25 Powder Weight percent

Pyrimidine Methanol 2-20 "Maneb" 15 - 50

Insecticide 0-40 30 Bird repellent 0-25

Surfactant (s) 0-10 01 ie 0 - 10

Pigment 0 - 10

Inert material (s) to 100

The following specific examples are given for further illustration of the invention. In these examples, the CCPM represents the compound α- (2-chlorophenyl) -α- (4-chlorophenyl) -5-pyrimidine methanol and 35

DK 156753 B

The 4 CFPM compound α- (2-chlorophenyl) -α- (4-fluorophenyl) -5-pyrimidine-methanol. Examples 1-3 illustrate embodiments of wettable powders, while Examples 4 and 5 pertain to powder formulations.

Example 1 Watt Percent CFPM 8 "Maneb" 32

Sodium aluminum finsulfonate 5 Sodium lignin sulfonate 5

Silica 5

Kaolin 45

Example 2 15 wt% CFPM 6.5 "Maneb" 26.5 "Lindan" 16.5

Sodium alkylaryl sulfonate 2 Silica 1.5

Polyvinylpyrrolidone 1

Kaoli n 46

Example 3 25 Wt% CCPM 6.5 "Maneb" 26.5 "Lindan" 16.5

Anthraquinone 16.5 Sodium N-alkyl-N-palmitoyl taurate 5

Sodium lignin sulfonate 5

Silica 5

Permanent rddt 4

Kaolin 15 7 "Lindan" is the generic name for α-1,2,3,4,5,6-hexachlorocyclohexane.

35 * 1 5

DK 156753B

In the above Examples 1-3, the size of the active components is reduced in the conventional manner and then mixed with the other components in conventional mixing equipment. The mixture is then molded into a fluid energy bulb to a particle size in the range of 1-10 µm. The mixture is then re-mixed and de-aerated for packaging.

Example 4 Watt Percent CFPM 10 10 "Maneb" 40 "IOW" Engine Oil 1

Rpdt iron oxide 5

Talc 44 15 Example 5 Weight percent CCPM 20 "Maneb" 40

Alkylphenolethylene oxide condensate 4 20 Permanent root 4

Talc 27 In Examples 4 and 5, the particle size of the active components is reduced by conventional means and then mixed with other components as the oil or surfactant is injected into the mixture. The mixture is then molded into batches of size from 5 to 50 μπι. The mixture is remixed and deaerated for packaging.

The preparation of Example 1, as shown in the test report below, gave a synergistic effect when used as a treating agent for the regulation of Septoria (Leptosohaeria nodorum) in wheat.

Test report 35 Test method and results

Three fungicidal formulations were prepared by mixing the ingredients listed below followed by grinding in a fluid energy mole 6

DK 156753B

to obtain a particle size in the range of 1 to 10 µl.

Formulas ηα I

Inner service__ Weight parts 5 CFPM 8 "Maneb" 32

Sodium alpha olefin sulfonate 5

Sodium ignin sulfonate 5

Silica 5 10 Kaolin 45

Formulation II

Ingredient _: _ Weight Parts CFPM 8 15 "Maneb" 0

Sodium alpha olefin sulfonate 5

Sodium ignin sulfonate 5

Silica 5

Kaolin 45 20

Formulation III

Ingredient_ Weight CFPM 0 "Maneb" 32 25 Sodium alpha olefin sulfonate 5

Sodium ignin sulfonate 5

Silica 5

Kaolin 45 30 As seen, formulation I contains CFPM and "Maneb" in accordance with the invention, while formulations II and III are identical to formulation I except that "Maneb" and CFPM are omitted, respectively.

The above formulations were then intimately mixed with wheat fruit injected with "Septoria" (Leptosphaeria nodorum) to a dose of CFPM of 0.2 g per gram. kg of fruit and / or a dose of "Maneb" of 0.8 g per day. kg frp. The seeds are then seeded in a conventional manner in the greenhouse. Later, a percentage of disease-free healthy plants was determined with the following results:

Claims (2)

15 Patent claims 1. Fungicide for use in plant protection, CHARACTERIZED in that it consists of or contains a combination of [[1,2-ethane-diylbis [carbamodithioato]] (2 -)] - manganese and a pyrimidine methanol of formula (I): X "· Φ (O /? - oh (i) 25 \ - / i Cl (ΟΓ wherein X is chlorine or fluorine. 2. A method for treating seeds of cereals to reduce the incidence or degree of fungal infections in the crops grown therein, characterized in that the seeds of the cereals are applied to a fungicidal agent according to claim 1. 35