MXPA97005565A - Products for culti protection - Google Patents

Abstract

The present invention relates to mixtures active plant protective ingredients, having a synergistically increased action, wherein the component I is a compound having an immunizing action of plants of the formula I: wherein: Z is CN, or a salt thereof, CO-O-alkyl of 1 to 4 carbon atoms, or OC-S-alkyl of 1 to 4 carbon atoms, and wherein component II is a compound selected from the group consisting of propiconazole, difenoconazole, penconazole, phenpropimorf, fenpropidina, ciprodinil, metalaxil, R-metalaxil, and pirroquil

Description

PRODUCTS FOR PROTECTION OF CROPS The present invention relates to novel protective mixtures of cultures of active ingredients having a synergistically increased action, this mixture comprising at least one compound having an immunizing action of plants, and at least one compound having a microbicidal action, and methods for use these mixtures in crop protection, in particular to control and prevent the incidence of diseases. Component I is an immunizing compound of plants of the formula I: wherein: Z is CN, COOH, or a salt thereof, CO-O-alkyl of 1 to 4 carbon atoms, or CO-S-alkyl of 1 to 4 carbon atoms; component II is a compound selected from the group consisting of: A) 1- [2- (2,4-dichlorophenyl) -4-propyl-l, 3-dioxolan-2-ylmethyl] -lH-1, 2 , 4-triazole, ("propiconazole"), (reference: GB-1 522,657); B) l-. { 2- [2-chloro-4- (4-chlorophenoxy) phenyl] -4-methyl-l, 3-dioxolan-2-ylmethyl} -1H-1, 2,4-triazole ("difenoconazole"), (reference: GB-2 098,607); C) l- [2- (2,4-dichlorophenyl) pentyl-lH-1,2,4-triazole ("penconazole"), (reference: GB-1 589,852); D) cis-4- [3- (4-butyl-tert-cyclo-phenyl) -2-methylpropyl] -2,6-dimethylmorpholine ("phenpropimorph"), (reference: DE 2,752,135); E) l - [3 - (4-bu t i 1 or t er c i ar i o -f in i 1) -2-methylpropyl] piperidine ("fenpropidin"), (reference: DE 2,752,135); F) 4-cyclopropyl-6-methyl-N-phenyl-2-pyrimidinamine ("ciprodinil") (reference: EP-A-310,550); G) methyl ester of (RS) -N- (2,6-dimethylphenyl-N- (methoxyacetyl) alanine ("etalaxyl"), (reference: GB-1 500,581); H) methyl ester of (R) -N- (2,6-dimethylphenyl-N- (methoxyacetyl) alanine ("R-metalaxyl") (reference: GB-1500, 581); J) 1,2,5,6-tetrahydro-4H-pyrrolo [3, 2, 1-ij] quinolin-4-one ("pyrocyon"), (reference: GB-1 394,373). The invention also relates to salts and metal complexes of compounds I and II. The preferred compounds among those of the formula I, are the compounds wherein Z is COOH (compound IA) or a salt thereof, CN (compound IB), COOCH3 (compound IC), or C0SCH3 (compound ID). Preferred salts are alkali metal and alkaline earth metal salts, in particular salts of Li, Na, K, Mg, or Ca, furthermore organic salts, those of the salt forming amines, for example, trimethylamine, triethylamine, N , N-dimethylaniline, pyridine, triethanolamine, morpholine. Very particularly preferred is the compound of the formula I wherein Z is CO-SCH3 (compound ID). It has been reported that the compounds of the formula I activate the plant's own latent defense system against the effects of pathogenic microbes, and therefore, can protect the plant against pathogens (EP-A-313,512). At low application concentrations, these compounds are not directly active against harmful organisms, but they cause immunization of the healthy plant against diseases. The drawback of controlling plant diseases using the compounds of formula I is that the action is often insufficient at low concentrations of application. Surprisingly, it has now been discovered that the compounds of the formula I, when mixed in certain proportions with one of the conventional microbicides IIA to IIJ, have a synergistically increased action. These mixtures are suitable for controlling plant diseases by, on the one hand, strengthening the plant by activating its own defense system, and on the other hand, controlling the pathogens in a direct manner. Compared to conventional methods for controlling plant diseases, unexpectedly low amounts of active ingredients are required. A particular advantage of the mixtures according to the invention is also the fact that the accumulation of resistance of plant diseases is effectively prevented by completely different mechanisms of action of the components I and II. The synergistically increased action of the mixtures of components I and II is shown, for example, by lower application concentrations, longer duration of action, and higher overall yields than expected from the total of individual component stocks. The present invention also relates to a method for protecting plants against plant diseases, in particular fungal infestation, by treating plants, parts of plants, or their environment, with a component I and a component II in any order or in a simultaneous manner. Convenient mixing ratios of the two active ingredients are I: II = 1:30 to 10: 1, preferably I: II = 1:20 to 2: 1, and 1:10 to 1: 1.

Particularly convenient mixing ratios are: I: HA = 1: 1 to 1: 6 I: IIB = 1: 1 to 1: 6 I: IIC = 1: 1 to 1: 5 I: IID = 1: 1 to 1 : 10 I: IIE = 1: 1 to 1:10 I: IIF = 1:20 to 1:10 I: IIG = 10: 1 to 1:10 I: IIH = 10: 1 to 1: 5 I: IIJ = 10: 1 to 1:10 The mixtures according to the invention of the active ingredients I + II have very convenient properties to protect the plants against the incidence of diseases. The present mixtures of active ingredients are capable of containing or destroying the microorganisms that occur in the plants or in the parts of the plants (fruit, flowers, foliage, stems, tubers, roots) of a variety of useful plant crops, and even the parts of the plants that are formed at a later time point, remain undamaged by these microorganisms. They can also be used as seed coating agents for the treatment of propagation material of plants, in particular seeds (fruits, tubers, grains) and nursery plants (for example rice) as a protection against fungal infections and against the phytopathogenic fungi of the earth. The mixtures of active ingredients according to the invention are distinguished by a particularly good tolerance for the plants, and favorable ecological properties. The mixtures of the active ingredients are effective against the phytopathogenic fungi of the following classes: Ascomycetes (for example, Venturia, Podosphaera, Erysiphe, Monilinia, Mycosphaerella, Uncinula); Basidiomycetes (for example, the genera He ileia, Rhizoctonia, Puccinia); Fungi imperfecti (for example, Botrytis, Helminthosporium, Rhynchosporium, Fusarium, Septoria, Cercospora, Alternaria, Pyricularia and in particular, Pseudocercosporella herpotrichoides); Oomycetes (for example, Phytophthora, Peronospora, Bremia, Pythium, Plasmopara). Objective crops for the indication fields disclosed in the present disclosure are, for example, the following plant species: cereals (wheat, barley, rye, oats, rice, sorghum, and related species) within the scope of the invention.; Beets (sweet beet and forage); pome fruit, hard fruit, and soft fruit (apples, pears, plums, peaches, almonds, cherries, strawberries, raspberries, and blackberries); leguminous plants (beans, lentils, peas, soybeans); oil crops (rapeseed oil, mustard, poppies, olives, sunflowers, coconut, castor, cocoa, peanuts); cucurbits (pumpkins, cucumbers, melons); fiber plants (cotton, linen, hemp, jute); citrus fruit (oranges, lemons, grapefruit, tangerines); vegetables (spinach, lettuce, asparagus, cabbages, carrots, onions, tomatoes, potatoes, peppers); the laurel family (avocado, cinnamon, camphor); or plants such as corn, tobacco, nuts, coffee, sugar cane, tea, vines, hops, the plant family, and latex plants, and also ornamentals (flowers, shrubs, deciduous trees, and conifers). This enumeration is not by way of limitation. The mixtures of the active ingredients according to the invention are particularly suitable for the following applications: I + IIA, I + IIB, I + IID, I + IIE: in cereals, very particularly in wheat and barley; I + IIG, I + IIH, very particularly I + IIH: in potatoes, vines, meadows, hops, tobacco, and vegetables; I + IIJ: in rice.

The mixtures of the active ingredients of the formulas I and II are conventionally used in the form of compositions. The active ingredients of the formulas I and II can be applied to the area or plant to be treated, either simultaneously or in succession the same day, if desired together with other vehicles conventionally used in the formulation technique, surfactants or other additives that help the application.

Suitable vehicles and additives may be solid or liquid, and are substances conveniently used in the formulation art, for example natural or regenerated mineral materials., solvents, dispersants, wetting agents, adhesives, thickeners, binders, or fertilizers. A preferred method for applying a mixture of active ingredients comprising, in each case, at least one of these active ingredients I and II, is the application to the aerial parts of the plant, especially the foliage (foliar application). The number and concentrations of application depend on the biological and climatic environment of the pathogen. In an alternative way, the active ingredients can reach the plant from the ground or from the water by means of the root system (systemic action), flooding the plant site with a liquid preparation (for example, in rice cultivation). ), or incorporating the substances in the soil in solid form, for example in the form of granules (application to the soil). The compounds of formulas I and II can also be applied to seed grains for the purposes of seed treatment (coating), either by soaking the roots or grains in succession with a liquid preparation of an active ingredient, or by coating them with a wet or dry preparation that already understands the combination. In addition, other types of application to the plants are possible in specific cases, for example, the objective treatment of the cocoons or of the parts that bear fruit of the plant. The compounds of the combination are used as pure active ingredients, or preferably, together with auxiliaries conventionally used in the formulation art, and consequently, they are processed in a known manner to give, for example, emulsion concentrates, pastes extendable, solutions ready to be sprayed or ready to be diluted, diluted emulsions, wettable powders, soluble powders, dry powders, granules, or encapsulations, for example in polymeric materials. Application methods, such as spray, atomization, dusting, dispersion, brush application, or irrigation, and the type of composition, are selected to suit the intended objectives and prevailing circumstances. Suitable application concentrations of the mixture of active ingredients are generally from 50 grams to 2 kilograms of active ingredient per hectare, in particular from 100 grams 1,000 grams of active ingredient per hectare, particularly preferably from 150 grams to 700 grams. of active ingredient per hectare. For the treatment of seeds, the application concentrations are from 0.5 grams to 1,000 grams, preferably from 5 grams to 100 grams of active ingredient per 100 kilograms of seed. The formulations are prepared in a known manner, for example, by intimately mixing and / or grinding the active ingredients with extenders, for example, solvents, solid carriers, and if desired, surface-active compounds (surfactants). Suitable solvents are: aromatic hydrocarbons, preferably fractions of 8 to 12 carbon atoms, for example mixtures of substituted xylene or naphthalenes, phthalic esters, such as dibutyl phthalate or dioctyl phthalate, aliphatic hydrocarbons, such as cyclohexane or paraffins , alcohols and glycols, and also their ethers and esters, such as ethanol, ethylene glycol, ethylene glycol monomethyl ether, or ethylene glycol monoethyl ether, ketones, such as cyclohexanone, strongly polar solvents, such as 2-pyrrolidone N-methyl, dimethyl sulfoxide, or dimethyl formamide, and free or epoxidized vegetable oils, such as coconut oil or epoxidized soybean oil; or water. The solid carriers which are used for example for dry powders and dispersible powders are, as a rule, ground natural minerals, such as calcite, talc, kaolin, ontmorilonite, or attapulgite. To improve the physical properties, it is also possible to add highly dispersed silica or highly dispersed absorbent polymers. Particulate adsorbent carriers suitable for granules are porous types, for example pumice, partition sand, sepiolite, or bentonite, and suitable non-sorbent carrier materials are, for example, calcite or sand. * Furthermore, a large number of previously granulated materials of an inorganic or organic nature can be used, such as, in particular, dolomite or crushed plant residues. Depending on the nature of the active ingredients of the formulas I and II to be formulated, suitable surface active compounds are nonionic, cationic, and / or anionic surfactants having good emulsifying, dispersing, and wetting properties. Surfactants must also be understood to mean mixtures of surfactants. Particularly suitable additives which aid the application are, in addition, natural or synthetic phospholipids from the series of cephalins and lecithins, for example phosphatidylethanolamine, phosphatidylserine, phosphatidylglycerin, lysolecithin. As a rule, agrochemical preparations comprise from 0.1 to 99 percent, in particular from 0.1 to 95 percent of active ingredients of Formulas I and II, from 99.9 to 1 percent, in particular from 99.9 to 5 percent of an additive. solid or liquid, and from 0 to 25 percent, in particular from 0.1 to 25 percent of a surfactant. Although concentrates are more preferred as commercially available articles, the end consumer uses, as a rule, dilute compositions. These compositions are part of the present invention. The following examples are intended to illustrate the invention, the "active ingredient" being understood to mean a mixture of compound I and compound II in a certain proportion of mixture.

Formulation Examples Wettable powders a) b) c) Active ingredient [1:11 = l: 3 (a), l: 2 (b), l: l (c)] 25% 50% 75% Sodium lignosulfonate 5% 5% Sulfate lauryl sodium 3% - 5% Sodium diisobu tyl naphthalenesulfonate - 6% 10% Octylphenol polyethylene glycol ether (7 to 8 moles of ethylene oxide) - 2% - Highly dispersed silica 5% 10% 10% Kaolin 62% 27% The active ingredient is mixed thoroughly with the additives, and the mixture is completely milled in a suitable mill. This gives wettable powders that can be diluted with water to give suspensions of any desired concentration.

Emulsion concentrate Active ingredient (I: II = 1: 6) 10% Octylphenol polyethylene glycol ether (4 to 5 moles of ethylene oxide) 3% Calcium dodecylbenzenesulfonate 3% Polyglycol ether of castor oil (35 moles of ethylene oxide) 4% Cyclohexanone 30% Mixture of xylene 50% Emulsions of any desired dilution can be prepared which can be employed in protecting crops from this concentrate by dilution with water.

Dry powders a) b) c) Active ingredient [I: II = 1: 4 (a); 5% 6% 4% l: 5 (b), and 1: 1 (c)] Talc 95% Caolin - 94% Rockmeal - - 96% Dry powders ready for use are obtained by mixing the active ingredient with the vehicle, and grinding the mixture in a suitable mill. These powders can also be used for the treatment of dry seeds.

Extruder granules Active ingredient (I: II = 2: 1) 15% Sodium lignosulfonate 2% Ethylene carboxy cellulose 1% Kaolin 82% The active ingredient is mixed with the additives, milled and moistened with water. This mixture is extruded and subsequently dried in a stream of air.

Coated granules Active ingredient (1:11 = 1:10) 8% Polyethylene glycol (PM 200) 3% Kaolin 89% (MW = molecular weight).

In a mixer, the finely ground active ingredient is uniformly applied to the kaolin that has been moistened with polyethylene glycol. This gives coated granules free of dust.

Concentrate in suspension Active ingredient (I: II = 1: 7) 40% Propylene glycol (MW 200) 10% Polyethylene glycol ether 6% nonylphenol (15 moles of ethylene oxide). Sodium lignosulfonate 10% Carboxymethyl cellulose 1% Silicone oil (in the form of a 75% aqueous emulsion) 1% Water 32% The finely ground active ingredient is intimately mixed with the additives. This gives a suspension concentrate from which suspensions of any desired dilution can be prepared by dilution with water. These dilutions can be used for the treatment of living plants and plant propagation material by means of spraying, watering, or immersion, and to protect them against microbial infection.

Biological Examples A synergistic effect is present if the action of the combination of active ingredients exceeds the total of the actions of the individual components. The expected action E for a given combination of active ingredients can be described by the so-called COLBY formula, and can be calculated as follows (COLBY, S.R.

"Calculating synergistic and antagonistic responses of herbicide combination". Weeds, Volume 15, pages 20-22, 1967): ppm = milligrams of active ingredient (= i. A.) Per liter of spray mixture. X percentage of action caused by the active ingredient I in a concentration of p ppm active ingredient. Y = percentage of action caused by the active ingredient II in a concentration of q ppm of active ingredient. E = expected action of the active ingredients I + II at an application concentration of p + q ppm of active ingredient (additive action).

Then the COLBY formula reads: E = X + Y X • Y. 100 If the action actually observed (O) exceeds the expected action (E), the action of the combination is superadditive, that is, there is a synergistic effect. O / E = synergy factory (FS). In the following examples, the infestation of the untreated plant is considered 100 percent, which corresponds to an action of 0 percent.

A) Examples where Component I: Compound ID (benzothiadiazole-7-thiomethyl carboxylate) Component II: Compound HA (propiconazole).

Example Al: Action against recondite Puccinia in Wheat 7-day-old wheat plants are sprayed to the drip point with a spray mixture prepared from a formulated active ingredient, or a combination of active ingredients. After 4 days, the treated plants are infected with a conidia suspension of the fungus, and the treated plants are subsequently incubated for 2 days at a relative atmospheric humidity of 90 to 100 percent, and at 20 ° C. Ten days after infection, the fungus infestation is evaluated. The following results are obtained: Exp. Mg of I: II% of action Calculated PS No. ingredient found E o / E active / liter O i. to. ID i. to. HE HAS (control) 100 51 100 20: 1 79 56 1.4 Example A2: Action against Erysiphe qraminis in wheat outside (experimental site: Les Barqes, Dalais, Switzerland) In a field trial (10 square meters), winter wheat cv. "Bernina" in the growth phase with a prepared spray mixture with a wettable powder of the active ingredient. The infection is natural. Ten days after infection, the fungus infestation is evaluated. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E O / E active / liter O i.a. ID i.a. HE HAS 0 - - 0 (control) 1 5 - 29 2 - 50 2 3 - 100 31 4 5 50 1:: 10 49 32 1.5 5 100 1:: 20 59 51 1.2 Example A3: Action against Mycosphaerella fj iensis in bananas (experimental site: Ombu Farm, Prov. Limón, Costa Rica) Forty banana plants in a plot of 300 square meters are sprayed at intervals of 17 to 19 days with a prepared spray mixture with the wettable powder of the active ingredient; altogether six times. The infection is natural. For the evaluation, the area of the leaf infested with the fungus is measured. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E o / E active / liter O i. to. ID i. to. HE HAS (control) 50 19 50 26 50 50 1: 1 46 40 1.15 Similarly, good results are obtained using mixtures of one of the compounds IA, IB, or IC with the compound HA.

B) Examples where Component I: Compound ID (benzothiadiazole-7-thiomethyl carboxylate) Component II: Compound HF (cyprodinil) Example Bl: Action against Erysiphe qraminis in wheat outdoors (experimental site: Hittlesford, England) In a field trial (10 2), winter wheat cv. "Kanzler" in the growth phase 31-32, with a prepared spray mixture with a wettable powder of the active ingredient. The infection was natural. The following results are obtained: Exp. Mg of I: II% of action Calculated Fß No. ingredient found E O / E active / liter O i. to. ID i.a.IIF (control) 25 32 50 63 750 38 750 1:30 75 58 1.3 50 750 1:15 88 77 1.1 Example B2: Action against Alternaria solani in tomatoes outdoors (experimental site: Cikampek, Java, Indonesia) Tomato plants are sprayed on a 7-square-meter plot at 7-day intervals with a prepared spray mixture with a wettable powder of the active ingredient; altogether nine times. The infection is natural. For the evaluation, the area of the leaf infested with the fungus is measured. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E O / E active / liter O i. to. ID i.a.IIF (control) 2.5 32 12. 5 30 25 51 2. 5 12.5 1: 5 79 53 1.5 2.5 25 1:10 80 67 1.2 Similarly, good results are obtained using mixtures of one of the compounds IA, IB, or IC with the compound HF.

C) Examples where Component I: Compound ID (benzothiadiazole-7-thiomethyl carboxylate) Component II: Compound HG (metalaxyl) Example Cl: Action against Ph? Tophthora infestans in tomatoes Tomato plants cv. "Roter Gno" to the point of dripping with a prepared spray mixture with the active ingredient formulated, or with the combination of active ingredients. After 4 days, the treated plants are sprayed with a spore suspension of the fungus, and subsequently incubated in a cabinet for 2 days at 18-20 ° C, and with a relative atmospheric humidity of 90 to 100 percent. Five days after infection, the fungus infestation is evaluated. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E O / E active / liter O i.a. ID i.a.IIG 0 (control) 1 5 14 2 25 36 3 100 61 4 500 72 5 - 0.1 13 6 1 23 7 10 35 8 50 68 9 5 0.1 50: 1 50 25 2.0 5 1 5: 1 62 34 1.8 11 5 10 1: 2 87 44 2.0 12 5 50 1:10 84 73 1.2 13 25 50 1: 2 92 80 1.2 14 100 10 10: 1 85 75 1.1 100 50 2: 1 95 88 1.1 16 500 10 50: 1 97 82 1.2 Similarly, good results are obtained with mixtures of one of the compounds IA, IB, or IC with the compound HG. Particularly good results are achieved with respect to the degradability of the active ingredient in the soil, with mixtures of the compound ID with the compound HH.

D) Examples where Component I: Compound IA = benzothiadiazole-7-carboxylic acid Component II: Compound HG (etalaxyl).

Example Di: Action against Ph? Tophthora infestans in tomatoes The experiments are carried out as described for Example Cl. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E O / E active / liter O i.a.IA i.a.IIG 0 - - 0 (control) 1 0.1 0 2 0.5 9 3 1 22 4 5 45 1 13 6 10 33 7 50 63 8 100 83 9 0.1 1 1: 10 36 13 2.8 0.5 1 1: 2 29 21 1.4 11 1 1 1: 1 57 32 1.8 12 1 10 1: 10 79 48 1.6 13 5 1 5: 1 61 52 1.2 Example D2: Action against Pseudoperonospora cubensis on cucumbers Cucumber plants from 16 to 19 days old ("Wisconsin") are sprayed to the drip point with a prepared spray mixture with the active ingredient formulated, or with the combination of the ingredient, or the combination of active ingredients. After 4 days, the treated plants are infected with sporangias of Pseudoperonospora cubensis (strain 365, Ciba, maximum 5,000 per milliliter), and the treated plants are subsequently incubated for 1 to 2 days at 18-20 ° C, and with a humidity relative atmospheric from 70 to 90 percent. Ten days after the infection, the infestation of the fungus is evaluated, and compared with the infestation in the untreated plants. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E O / E active / liter O i.a.IA i.a.IIG (control) 1 0.05 0 2 0.5 6 3 5 66 4 0.5 31 5 5 66 6 50 91 7 0.05 0.5 1:10 66 31 2.1 8 0.05 5 1: 100 83 66 1.3 9 0.5 0.5 1: 1 83 35 2.4 0.5 5 1:10 83 68 1.2 E) Examples where Component I: Compound ID (benzothiadiazole-7-carboxylic acid thiomethyl). Component II: Compound IIJ (pyrroquilone) Example: Action against Pirycularia oryzae in rice outside (experimental site: Qno, Japan) On a 12-square-meter plot, rice plants are sprayed with a prepared spray mixture with a wettable powder of the active ingredient. The infection is natural. For the evaluation, the area of the leaf infested with the fungus is measured 44 days after the application. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E O / E active / liter O i. to. ID i.a.IIJ 0 - - - 0 (control) 1 0.25 22 2 0.5 50 3 0.75 46 4 1.5 82 0.25 0.75 1:: 3 80 58 1.4 6 0.5 0.75 1: 1. 5 85 73 1.2 Similarly, good results are obtained with mixtures of one of the compounds IA, IB, or IC with the compound HJ.

F) Examples where Component I: Compound IA (benzothiadiazole-7-carboxylic acid) Component II: Compound HD (phenpropimorf).

Example Fl: Action against cercospora nicotianae in tobacco plants Six week old tobacco plants (cv. "Burley") are sprayed to the drip point with a spray mixture prepared with the active ingredient formulated, or the combination of ingredients assets. After 4 days, the treated plants are infected with a suspension of Cercospora nicotianae spores (Ciba No. 295, maximum 150,000 per milliliter), and the treated plants are subsequently incubated for 5 days at 20-22 ° C, and with a Relative atmospheric humidity from 70 to 90 percent. Ten days after infection, the infestation of the fungus is evaluated, and compared with the infestation on the untreated plants. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E O / E active / liter O i.a.IA i.a.IID 0 - - 0 (control) 1 0.2 0 2 0.6 3 3 2 69 4 6 79 2 13 6 6 23 7 10 42 8 0.2 2 1:: 10 52 13 4 9 0.2 6 1:: 30 61 23 2.7 0.6 2 1:: 3 71 16 4.4 11 6 6 1:: 1 100 83 1.2 G) Examples where Component I: Compound IA (benzothiadiazole-7-carboxylic acid) Component II: Compound HE (phenpropidine).

Example Gl: Action against recondite Puccinia in wheat The experiments are carried out as described for Example Al. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E o / E active / liter or i.a.IA i. to. HE 0 - - 0 (control) 1 6 20 2 20 40 3 20 40 4 60 60 6 20 1: 3 73 52 1.4 6 6 60 1: 10 75 68 1.1 H) Examples where Component I: Compound IA (benzothiadiazole-7-carboxylic acid) Component II: Compound HB (difenoconazole).

Example Hl: Action against Cercospora nicotianae in tobacco plants The experiments are carried out as described for Example Fl. The following results are obtained: Exp. Mg of I: II% of action Calculated FS No. ingredient found E O / E active / liter O i.a IA i.a.IIB 0 - - 0 (control) 1 2 69 2 6 79 3 20 100 4 0.6 3 5 2 23 6 6 32 7 2 0.6 3: 1 90 70 1.3 8 6 0.6 10: 1 100 80 1.3

Claims (28)

NOVELTY OF THE INVENTION Having described the above invention, it is considered as a novelty, and therefore, the content of the following is claimed as property: CLAIMS

1. A product for crop protection against the incidence of diseases, which comprises at least two active components together with a suitable carrier material, component I being a compound having an immunizing action of plants of the formula I: wherein: Z is CN, COOH, or a salt thereof, CO-O-alkyl of 1 to 4 carbon atoms, or CO-S-alkyl of 1 to 4 carbon atoms; component Ii is a compound selected from the group consisting of: A) l- [2- (2,4-dichlorophenyl) -4-propyl-l, 3-dioxolan-2-ylmethyl] -lH-1, 2 , 4-triazole, ("propiconazole"); B) l-. { 2- [2-chloro-4- (4-chlorophenoxy) phenyl] -4-methyl-l, 3-dioxolan-2-ylmethyl} -lH-1, 2,4-triazole ("difenoconazole");

C) l- [2- (2,4-dichlorophenyl) pentyl-lH-1,2,4-triazole ("penconazole"); D) cis-4- [3- (4-butyl tertiary-phenyl) -2-methylpropyl] -2,6-dimethylmorpholine ("fenpropimorf"); E) 1 - [3 - (4 -bu t i 1 or tertiary-f-enyl) -2-methylpropyl] piperidine ("fenpropidin"); F) 4-cyclopropyl-6-methyl-N-phenyl-2-pyrimidinamine ("cyprodinil"); G) methyl ester of (RS) -N- (2,6-dimethylphenyl-N- (methoxyacetyl) alanine ("metalaxyl"); H) methyl ester of (R) -N- (2,6-dimethylphenyl-N-) (etoxyacetyl) alanine ("R-metalaxyl"); J) 1,2,5,6-tetrahydro-4H-pyrrolo [3, 2, 1-ij] quinolin-4-one ("pyrroquillon"). 2. A composition according to the claim 1, wherein components I and II are present in a synergistically effective proportion.

3. A composition according to claim 1, wherein the weight ratio is from I: II = 1:30 to 10: 1.

4. A composition according to the claim 3, where the weight ratio is from I: II = 1:20 to 2: 1.

5. A composition according to the claim 4, where the weight ratio is from I: II = 1:10 to 1: 1.

6. A composition according to claim 1, wherein, in the compound of the formula I, Z is COOH (compound IA) or a salt thereof, CN (compound IB), COOCH3 (compound IC), or COSCH3 ( compound ID).

7. A composition according to claim 6, wherein, in the compound of the formula I, Z is CO-SCH3 (compound ID).

8. A composition according to claim 1, wherein component II is the compound HA ("propiconazole").

9. A composition according to claim 1, wherein component II is HB compound ("difenoconazole").

10. A composition according to claim 1, wherein component II is compound HC ("penconazole").

11. A composition according to claim 1, wherein component II is the HD compound ("fenpropimorf").

12. A composition according to claim 1, wherein component II is compound HE ("fenpropidine").

13. A composition according to the claim 1, wherein component II is the compound HF ("cyprodinil").

14. A composition according to claim 1, wherein component II is the compound HG ("metalaxyl").

15. A composition according to claim 1, wherein component II is the compound HH ("R-metalaxyl").

16. A composition according to claim 1, wherein component II is compound HJ ("pyrocyon").

17. A method for protecting plants against plant diseases, by treating the plants, parts of plants, or their environment, with a component I and a component II according to claim 1 , in any order or in a simultaneous manner.

18. A method according to claim 17, wherein, in the compound of formula I, Z is COOH (compound IA) or a salt thereof, CN (compound IB), COOCH3 (compound IC), or COSCH3 ( compound ID).

19. A method according to claim 18, wherein, in the compound of the formula I, Z is C0-SCH3 (compound ID).

20. A method according to claim 17, wherein component II is compound Ha ("propiconazole").

21. A method according to claim 17, wherein component II is compound HB ("difenoconazole").

22. A method according to claim 17, wherein component II is compound HC ("penconazole").

23. A method according to claim 17, wherein component II is the compound HD ("phenpropimorf11")

24. A method according to claim 17, wherein component II is compound HE ("fenpropidin").

25. A method according to claim 17, wherein component II is compound HF ("cyprodinil")

26. A method according to claim 17, wherein component II is compound HG ("metalaxyl"). ")

27. A method according to claim 17, wherein component II is the compound HH (" R-metalaxyl ")

28. A method according to claim 17, wherein component II is the compound IIJ ("pyroquilon").