Description:FORM 2

THE PATENTS ACT, 1970
(SECTION 39 OF 1970)
&
The Patents Rules, 2003

COMPLETE SPECIFICATION
(Section 10 and Rule 13)

AN EMULSIFIABLE CONCENTRATE COMPOSITION OF PYRACLOSTROBIN AND TEBUCONAZOLE

We, COROMANDEL INTERNATIONAL LIMITED,
an Indian company incorporated under Companies Act of 1956, having its regional place of business at Coromandel House, Sardar Patel Road, Secunderabad – 500 003, Telangana, India.

The following specification particularly describes the invention and the manner in which it is to be performed:
FIELD OF THE INVENTION
The present invention relates to synergistic fungicidal compositions, methods of preparing and using such compositions for control of undesired plant diseases. More particularly, the present invention relates to synergistic fungicidal compositions comprising pyraclostrobin and tebuconazole with one or more agrochemical additives.

The present invention specifically relates to an emulsifiable concentrate composition comprising of pyraclostrobin and tebuconazole with one or more agrochemical additives, and process for the preparation thereof.

BACKGROUND OF THE INVENTION
Fungicides are natural or synthetic compounds that act to protect plants from damage caused by fungi. Current agricultural methods are highly dependent on the use of fungicides. In fact, some crops cannot grow usefully without the use of fungicides. The use of fungicides allows growers to improve the yield and quality of the crop and consequently increase the value of the crop. In most situations, increasing the value of the crop is at least three times the cost of using the fungicide.

Various agricultural and horticultural fungicides have been known, but there are a great variety of diseases to be controlled and it is difficult to specify the kind of the disease in practice and control the disease by choosing a fungicide suitable for the disease. However, not all fungicides are useful in all situations, and repeated use of a single fungicide frequently leads to the development of resistance to the fungicide and related fungicides. As a result, research to produce fungicides and combinations of multiple fungicides that are safer, have better performance, require less dose, are easier to use, and cost less has been implemented. Combinations that produce synergy, i.e., where the activity of two or more compounds exceeds the activity of these compounds when used alone, have also been investigated.

In addition, it is necessary to cope with the appearance of fungi which have acquired tolerance to specific agents and the occurrence of novel diseases due to the change of the mode of agriculture. For these reasons and the like, there is desired a fungicidal composition having a high activity and a wide anti-microbial spectrum.

The present invention provides a fungicidal composition which has a high activity and a wide antimicrobial spectrum and is markedly effective also against diseases caused by plant pathogenic fungi which have acquired tolerance to certain fungicides.

Pyraclostrobin is chemically, Methyl N-{2-[1-(4-chlorophenyl)pyrazol-3-yloxymethyl]phenyl}(N-methoxy)carbamate, first disclosed in US 5,869,517 A and has the following structure:

Many different formulations exist with imazalil, difenoconazole, prochloraz, propiconazole, chlorothalonil, cyprodinil, fludioxonil, azoxystrobin, and copper. In wood preservatives it is mixed with didecyldimethylammonium chloride. It is the active ingredient in two foliar fungicides for soybeans in the U.S., Alto X, and mixed with azoxystrobin in Quadris Xtra.

Tebuconazole is a triazole fungicide used agriculturally to treat plant pathogenic fungi. Tebuconazole is chemically known as (RS)-1-(4-Chlorophenyl)- 4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol, first disclosed in US 4,723,984 A and has the following structure:

It has been found that the use of Tebuconazole is effective in combatting or preventing fungal diseases. Tebuconazole is effective in controlling fungal infestations by inhibiting one specific enzyme, C14-demethylase, which plays a role in sterol production. Sterols, such as ergosterol, are needed for membrane structure and function, making them essential for the development of functional cell walls by the fungi.

OBJECTIVE OF INVENTION
The main object of the present invention is to provide an emulsifiable concentrate composition comprising of pyraclostrobin and tebuconazole with one or more agrochemical additives.

Another object of the present invention is to provide a method for preparing an emulsifiable concentrate composition comprising of pyraclostrobin and tebuconazole with one or more agrochemical additives.

Yet another object of the present invention to provide an emulsifiable concentrate composition comprising of pyraclostrobin and tebuconazole resulting in increased yield of the crop and enhanced fungicidal activity.

SUMMARY OF INVENTION

Accordingly, the present invention provides a synergistic fungicidal composition comprising of pyraclostrobin and tebuconazole with one or more agrochemical additives.

In another aspect of the present invention provides an emulsifiable concentrate composition comprising of:
a) pyraclostrobin,
b) tebuconazole,
c) one or more agrochemical additives.

In another aspect of the present invention provides an emulsifiable concentrate composition comprising of:
a) pyraclostrobin in the range from 5% to 15% (w/w),
b) tebuconazole in the range from 5% to 20% (w/w),
c) emulsifiers present in the range from 10% to 20% (ww),
d) co-solvents present in the range from 15% to 25% (w/w), and
e) solvent present in the range from 40% to 70% (w/w).

In another aspect of the present invention provides a process for the preparation of emulsifiable concentrate composition comprising the steps of:
a) adding all the active ingredients, emulsifiers, solvents, and co-solvents along with other auxiliaries in a vessel, and
b) mixing all the ingredients under continuous stirring to obtain homogenous clear solution.

DESCRIPTION OF THE INVENTION
The following detailed description is presented to enable any person skilled in the art to make and use the invention. For purposes of explanation, specific nomenclature is set forth to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that these specific details are not required to practice the invention. Descriptions of specific applications are provided only as representative examples. The present application is not intended to be limited to the embodiments shown but is to be accorded the widest possible scope consistent with the principles and features disclosed herein.

It is to be noted that, as used in the specification, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to a composition containing “a compound” includes a mixture of two or more compounds. It should also be noted that the term “or” is generally employed in its sense including “and/or” unless the content clearly dictates otherwise.

Similarly, the words "comprise", "comprises", and "comprising" are to be interpreted inclusively rather than exclusively. Likewise, the terms "include", "including", and "or" should all be construed to be inclusive, unless such a construction is clearly prohibited from the context. However, the embodiments provided by the present disclosure may lack any element that is not specifically disclosed herein. Thus, a disclosure of an embodiment defined using the term "comprising" is also a disclosure of embodiments "consisting essentially of” and "consisting of” the disclosed components. Where used herein, the term "example," particularly when followed by a listing of terms, is merely exemplary and illustrative, and should not be deemed to be exclusive or comprehensive. Any embodiment disclosed herein can be combined with any other embodiment disclosed herein unless explicitly indicated otherwise.

The expression of various quantities in terms of “% w/w” or “%” means the percentage by weight, relative to the weight of the total solution or composition unless otherwise specified.

As used herein, the terms "crops" and "vegetation" can include, for instance, dormant seeds, germinant seeds, emerging seedlings, plants emerging from vegetative propagules, immature vegetation, and established vegetation.

As used herein, a "fungicidally effective amount" may be understood to include an amount of an active ingredient that causes a "fungicidal effect," i.e., an adversely modifying effect including, for instance, a deviation from natural growth or development, killing, regulation, desiccation, growth inhibition, growth reduction, and retardation of fungi.

The compositions of the present invention are formulated into various formulations such as Granular composition (GR), Capsule suspension (CS), Dispersible concentrate (DC), Dustable powder (DP), Powder for dry seed treatment (DS), Emulsifiable concentrate (EC), Emulsifiable granule (EG), Emulsifiable water-in-oil (EO), Emulsifiable powder (EP), Emulsifiable for seed treatment (ES), Emulsifiable oil-in-water (EW), Flowable concentrate for seed treatment (FS), Granules (GR), Micro-emulsifiable (ME), Oil-dispersion (OD), Oil miscible flowable concentrate (OF), Oil miscible liquid (OL), Oil dispersible powder (OP), Suspension concentrate (SC), Suspension concentrate for direct application (SD), Suspo-emulsifiable (SE), Water soluble granule (SG), Soluble concentrate (SL), Spreading oil (SO), Water soluble powder (SP), Water soluble tablet (ST), Ultra-low volume (ULV) suspension, Tablet (TB), Ultra-low volume (ULV) liquid, Water dispersible granules (WG), Wettable powder (WP), Water dispersible powder for slurry seed treatment (WS), Water dispersible tablet (WT), a mixed formulation of CS and SC (ZC), a mixed formulation of CS and SE (ZE), a mixed formulation of CS and EW (ZW). Preferably, the composition of the present invention is in form of emulsifiable concentrate (EC).

As used herein, immature vegetation may be understood to include small vegetative plants prior to reproductive stage, and mature vegetation may be understood to include vegetative plants during and after the reproductive stage.

In one embodiment of the present invention provides a fungicidal composition comprising of pyraclostrobin, and tebuconazole.

In another embodiment of the present invention provides an emulsifiable concentrate composition comprising of:
a) pyraclostrobin
b) tebuconazole, and
c) one or more agrochemical additives.

In yet another embodiment of the present invention provides an emulsifiable concentrate composition comprising of:
a) pyraclostrobin in the range from 5% to 15% (w/w),
b) tebuconazole in the range from 5% to 20% (w/w),
c) emulsifiers present in the range from 10% to 20% (ww),
d) co-solvents present in the range from 15% to 25% (w/w), and
e) solvent present in the range from 40% to 70% (w/w).

The active ingredients constituting the fungicidal composition of the present invention are, in the same manner as conventional agricultural chemicals, mixed with one or more agrochemical additives.

Suitable agrochemical additives may be a solid or liquid and are generally a substance commonly used in formulation processing process, for example, natural or regenerated minerals, solvents, co-solvents, emulsifiers, dispersing agents, wetting agents, adhesives, thickeners or viscosity modifiers, biocide, anti-freezing agent, defoamer, binders, and stabilizers.

In yet another embodiment of the present invention, the fungicidal composition comprising pyraclostrobin in range from 5% to 15% (w/w) and tebuconazole in range from 5% to 20% (w/w).

In yet another embodiment of the present invention, the emulsifier is selected from the poly(oxy-1,2-ethanediyl), alpha-(tris(1-phenylethyl)phenyl)-omega-hydroxy-Calcium, 4-dodecan-3yl benzenesulfonate and its aromatic solvent, calcium alkyl aryl sulphonate, linear dodecylbenzene sulphonate, calcium salt in 2-ethylexanol solution, ethoxylated tristyrylphenol, calcium dodecylbenzene sulfonate, dodecylbenzene sulfonic acid, calcium salt, and tristyryl phenol-polyethylene glycol ether or combination thereof. Preferably, the emulsifier is present in the range from 10% to 20% (w/w).

In yet another embodiment of the present invention, the co-solvent is selected from the 1-methyl-2-pyrrolidinone (NMP), dimethyl amide, N, N-Dimethyl methanamide, cyclohexanone, and dimethyl sulfoxide (DMSO) or combination thereof. Preferably, the solvent is present in the range from 15% to 25% (w/w).

In yet another embodiment of the present invention, the solvent is selected from the aromatic hydrocarbon (solvent C9), and xylene. Preferably, the solvent is present in the range from 40% to 70% (w/w).

In yet another embodiment of the present invention provides a process for the preparation of emulsifiable concentrate composition comprising the steps of:
c) adding all the active ingredients, emulsifiers, solvents, and co-solvents along with other auxiliaries in a vessel, and
d) mixing all the ingredients under continuous stirring to obtain homogenous clear solution.

In yet another embodiment of the present invention provides a process for the preparation of emulsifiable concentrate composition comprising the steps of:
a) adding pyraclostrobin, tebuconazole active ingredients, poly(oxy-1,2-ethanediyl), alpha-(tris(1-phenylethyl)phenyl)-omega-hydroxy-calcium,4-dodecan-3-ylbenzene sulfonate, aromatic hydrocarbon solvent (solvent C9), 1-methyl-2-pyrrolidinone and dimethyl amide co-solvents in a vessel, and
b) mixing all the ingredients under continuous stirring to obtain homogenous clear solution.

The fungicidal composition of the present invention, which has been formulated into a preparation, may be used such as spreading (spreading, spraying, misting, atomizing, grain diffusing or application on water surface), soil application (such as mixing or irrigation) or surface application (such as coating, dust coating or covering) in the form of a solution, a suspension, or an emulsifiable preferably, emulsifiable concentrate (EC).

Examples of useful plants to be treated in the fungicidal composition of the present invention include cereals, vegetables, root vegetables, potatoes, trees, grasses, and lawn. In this case, each part of these plants may be subjected to the treatment. Examples of the part of the plants include leaves, stems, florals, flowers, buds, fruits, seeds, sprouts, roots, tubers, tuberous roots, shoots, and cuttings. It is also possible to subject the improved varieties/variants of these plants, and cultivars, mutants, hybrid bodies, or genetically modified bodies (GMO) to the treatment.

The fungicidal composition of the present invention can control various diseases generated upon cultivation of agricultural and horticultural crops, including flowers, lawn, and glasses by seed treatment, foliar spray, soil application, water application, or the like. Furthermore, the fungicidal composition of the present invention has an excellent fungicidal effect even on resistant fungi. Further, since the fungicidal composition exhibits the effect even when used at very low doses, it has an effect of preventing the emergence of new resistant fungi.

The fungicide composition for agricultural and horticultural use according to the present invention exhibits an excellent controlling effect against plant diseases even at a very low dosage and is free from concerns about phytotoxicity to useful plants. The fungicide composition for agricultural and horticultural use according to the present invention exhibits a remarkable synergistic plant disease control effect which cannot be predicted from the plant disease control effect obtained when using pyraclostrobin alone or tebuconazole alone.

The present invention provides a fungicidal composition for agricultural and horticultural use in which the control effect of a plant disease an effect for preventing and/or treating a plant disease, and a method for controlling a plant disease using the composition.

Examples:
Example 1: Pyraclostrobin 7.5% + Tebuconazole 12.5% Emulsifiable concentrate (EC):
S. No. Ingredients Function % (w/w)
1. Pyraclostrobin Fungicide 7.5
2. Tebuconazole Fungicide 12.5
3. Poly(oxy-1,2-ethanediyl), alpha-(tris(1-phenylethyl) phenyl)-omega-hydroxy- calcium, 4-dodecan-3-yl benzenesulfonate. Emulsifier 10.0
4. 1-methyl-2-pyrrolidinone (NMP) Co-solvent 15.0
5. Dimethyl amide Co-solvent 8.0
6. Aromatic hydrocarbon
(Solvent C9) Solvent 47.0
Total 100

Manufacturing process:
All the raw materials were weighed, dispensed and the mixture was mixed in vessel under continuous stirring and all the materials thoroughly mixed for around 30 minutes to obtain homogenous clear solution. The obtained solution was collected and packed.

Example 2: Pyraclostrobin 3% + Tebuconazole 5% Emulsifiable concentrate (EC)
S. No. Ingredients Function % (w/w)
1. Pyraclostrobin Fungicide 3.0
2. Tebuconazole Fungicide 5.0
3. Poly (oxy-1,2-ethanediyl), alpha-(tris(1-phenylethyl) phenyl)-omega-hydroxy- Calcium, 4-dodecan-3yl benzenesulfonate aromatic solvent. Emulsifier 5.0
4. Poly (oxy-1,2-ethanediyl), alpha-(tris(1-phenylethyl) phenyl)-omega-hydroxy- Calcium, 4-dodecan-3yl benzenesulfonate Emulsifier 5.0
5. N, N-Dimethyl methanamide (DMF) Co-solvent 15.0
6. Xylene Solvent 67.0
Total 100

Manufacturing process:
All the raw materials were weighed, dispensed and the mixture was mixed in vessel under continuous stirring and all the materials thoroughly mixed for around 30 minutes to obtain homogenous clear solution. The obtained solution was collected and packed.

Example 3: Pyraclostrobin 5% + Tebuconazole 10% Emulsifiable concentrate (EC)
S. No. Ingredients Function % (w/w)
1. Pyraclostrobin Fungicide 5.0
2. Tebuconazole Fungicide 10.0
3. Cyclohexanone Co-solvent 15.0
4. Calcium alkyl aryl sulphonate (10 - 30%) Emulsifier 5.0
5. Calcium alkyl aryl sulphonate (30 - 60%) Emulsifier 5.0
6. Aromatic hydrocarbon
(Solvent C9) Solvent 60.0
Total 100

Manufacturing process:
All the raw materials were weighed, dispensed and the mixture was mixed in vessel under continuous stirring and all the materials thoroughly mixed for around 30 minutes to obtain homogenous clear solution. The obtained solution was collected and packed.

Example 4: Pyraclostrobin 10% + Tebuconazole 15% Emulsifiable concentrate (EC)
S. No. Ingredients Function % (w/w)
1. Pyraclostrobin Fungicide 10.0
2. Tebuconazole Fungicide 15.0
3. Linear dodecylbenzene sulphonate, calcium salt in 2-ethylexanol solution. Emulsifier 8.0
4. Ethoxylated tristyrylphenol Emulsifier 10.0
5. Dimethyl sulfoxide Co-solvent 15.0
6. Aromatic hydrocarbon
(Solvent C9) Solvent 42.0
Total 100

Manufacturing process:
All the raw materials were weighed, dispensed and the mixture was mixed in vessel under continuous stirring and all the materials thoroughly mixed for around 30 minutes to obtain homogenous clear solution. The obtained solution was collected and packed.

Example 5: Pyraclostrobin 15% + Tebuconazole 20% Emulsifiable concentrate (EC)
S. No. Ingredients Function % (w/w)
1. Pyraclostrobin Fungicide 15.0
2. Tebuconazole Fungicide 20.0
3. Calcium dodecylbenzene sulfonate, dodecylbenzene sulfonic acid, calcium salt. Emulsifier 5.0
4. Tristyryl phenol-polyethylene glycol ether Emulsifier 5.0
5. Aromatic hydrocarbon
(Solvent C9) Solvent 55.0
Total 100

Manufacturing process:
All the raw materials were weighed, dispensed and the mixture was mixed in vessel under continuous stirring and all the materials thoroughly mixed for around 30 minutes to obtain homogenous clear solution. The obtained solution was collected and packed.

Efficacy study for combination of pyraclostrobin and tebuconazole in emulsifiable concentrate (EC):
Synergy studies:
After calculating % disease control, the synergism was calculated by below formula:
The synergistic fungicidal action of the inventive combinations or mixtures calculated by Colby’s formula as follows:
Appropriate analysis of plant response to fungicide combination is critical in determining the type of activity observed. The most widely used model is one Gowing* derived and Colby** modified. Gowing described a mathematical formula for calculating the predicting response values for pesticide mixtures. He suggested the expected (E) percent inhibition of growth induced by pesticide A plus pesticide B is as follows, *(Jerry Flint et al, 1988)***
If A1 = the percent inhibition of growth by pesticide A at given rate
B1 = the percent inhibition of growth by pesticide B at given rate then,

When the percentage of pesticidal control observed for the combination is greater than the expected percentage, there is a synergistic effect. (Ratio of O/E > 1, means synergism observed.)

Reference:
*Gowing, D. P. 1960. Comments on tests of fungicide mixtures. Weeds 8:379–391.
**Colby, S. R. 1967. Calculating synergistic and antagonistic responses of fungicide combinations. Weeds 15:20–22
*** Jerry Flint et al, 1988. Analyzing Fungicide Interactions: A Statistical Treatment of Colby's Method. Weed Technology 2: 304-309

Trial-1: Bio-efficacy against sheath blight disease control in rice:
The sheath blight is caused by the fungal pathogen Rhizoctonia solani. This is potentially devasting disease can infect rice foliage at any stage of crop development. Its major threat to many crops and can also affect the crop stand and yield. Rhizoctonia solani fungus is cosmopolitan, polyphagous, widely distributed in tropical, subtropical, and temperate regions and for its development required hot and humid environment. The fungus spreads in the field by growing its runner hyphae from tiller to tiller, from leaf to leaf, and from plant to plant, resulting in a circular pattern of damage. The infection spreads most quickly when susceptible varieties are grown under favourable conditions such as warm temperature (28 to 32°C), high humidity (95% or above), and dense stands with a heavily developed canopy.

The field trial was conducted to evaluate the efficacy of innovative mixtures of Pyraclostrobin and tebuconazole against Rhizoctonia solani fungus in rice crop. Trial was conducted with randomized block design with net plot size of 5m x 6m. rice crop was raised with all standard agronomic practices. Spraying was done with manual operated backpack knapsack sprayer with 500 L of water spray volume per hectare at 45 days after transplanting.

The visual observations were recorded for % disease control from ten hills per plot. The observations were recorded at before spraying, 7 DAA (Days after application) and 14 DAA (Days after application).

Table 1: sheath blight disease control in rice:
Compositions Dose (gram active per hectare) % Sheath blight disease control
7 DAA 14 DAA
Pyraclostrobin 7.5% + Tebuconazole 12.5% EC 200 95 85
Pyraclostrobin 7.5% CS 75 55 40
Tebuconazole 12.5% EC 125 65 50
EC – Emulsifiable concentrates, CS – Capsule suspension, and DAA - Days after application.

The trial results show excellent efficacy of Pyraclostrobin 7.5% + Tebuconazole 12.5% EC combinations against sheath blight disease of rice. The solo application of two active ingredients tested here, were also not able to provide satisfactory control of sheath blight disease. The combination of Pyraclostrobin 7.5% + Tebuconazole 12.5% EC found very promising against rice sheath blight in terms of efficacy as well as residual control.

Table 2: Percent sheath blight disease control at 14 DAA:
Compositions Dose (gram active per hectare) % Sheath blight disease control
Pyraclostrobin 7.5% CS 75 40
Tebuconazole 12.5% EC 125 50
Pyraclostrobin 7.5% + Tebuconazole 12.5% EC 200 85
Ratio of O/E 1.063
EC – Emulsifiable concentrates, CS – Capsule suspension, and DAA - Days after application.

The results in table 2 clearly demonstrate synergy between Pyraclostrobin and Tebuconazole in controlling rice sheath blight disease.

Trial – 2: Field Bio-efficacy and Synergy studies - Leaf spot complex
The leaf spot is caused by the fungal pathogens Helminthosporium spp., Cercospora spp. Magnaporthe oryzae. This is potentially devasting disease can infect rice foliage. It leads to premature death of leaves and leaf sheaths, premature ripening of grains, and in severe cases, lodging of plants. Its major threat to many crops and can also affect the crop stand and yield. Leaf spot complex fungus is cosmopolitan and widely distributed in tropical, subtropical regions of Asia and for its development required hot and humid environment. The disease usually occurs in potassium deficient soils, and in areas with temperature ranging from 25−28°C. It appears during the late growth stages of the rice crop, starting at heading stage. Plants are most susceptible during panicle initiation onwards, and damage becomes more severe as plants approach maturity.

The field trial was conducted to evaluate the efficacy of innovative mixtures of pyraclostrobin and tebuconazole against leaf spot complex fungus in rice crop. Trial was conducted with randomized block design with net plot size of 5m x 6m. rice crop was raised with all standard agronomic practices. Spraying was done with manual operated backpack knapsack sprayer with 500 L of water spray volume per hectare at 45 days after transplanting.

The visual observations were recorded for % disease control from ten hills per plot. The observations were recorded at before spraying, 7 DAA (Days after application) and 14 DAA (Days after application).

Table 3: Leaf spot complex control in rice:
Compositions Dose (gram active per hectare) % Leaf spot complex control
7 DAA 14 DAA
Pyraclostrobin 7.5% + Tebuconazole 12.5% EC 200 95 85
Pyraclostrobin 7.5% CS 75 60 50
Tebuconazole 12.5% EC 125 65 45
EC – Emulsion concentrates, CS – Capsule suspension, and DAA - Days after application.

The trial results in Table 3 show excellent efficacy of Pyraclostrobin 7.5% + Tebuconazole 12.5% EC combinations against leaf spot complex disease of rice. The solo application of two active ingredients tested here, were also not able to provide satisfactory control of leaf spot disease. The combination of Pyraclostrobin 7.5% + Tebuconazole 12.5% EC found very promising against rice leaf spot complex in terms of efficacy as well as residual control.

Table 4: Percent leaf spot complex disease control at 14 DAA:
Compositions Dose (gram active per hectare) % Leaf spot complex control
Actual
Pyraclostrobin 7.5% CS 75 50
Tebuconazole 12.5% EC 125 45
Pyraclostrobin 7.5% +
Tebuconazole 12.5% EC 200 85
Ratio of O/E 1.17
EC – Emulsion concentrates, CS – Capsule suspension, and DAA - Days after application.

The results in table 4 clearly demonstrates synergy between Pyraclostrobin and tebuconazole in controlling leaf spot complex disease. The large difference between the observed and the expected efficacy clearly demonstrates the synergistic effect of the combination. , Claims:WE CLAIM:
1. An emulsifiable concentrate composition comprising of pyraclostrobin active ingredient is present in a range from 5% to 15% (w/w), tebuconazole active ingredient is present in a range from 5% to 20% (w/w) and other agrochemical additives.

2. The fungicidal composition as claimed in claim 1, wherein the agrochemical additives are selected from the group comprising an emulsifier, co-solvents, and a solvent.

3. The fungicidal composition as claimed in claim 2, wherein the emulsifier is selected from the group comprising of poly(oxy-1,2-ethanediyl), alpha-(tris(1-phenylethyl)phenyl)-omega-hydroxy-Calcium, 4-dodecan-3yl benzenesulfonate and its aromatic solvent, calcium alkylarylsuphonate, linear dodecylbenzene sulphonate, calcium salt in 2-ethylexanol solution, ethoxylated tristyrylphenol, calcium dodecylbenzene sulfonate, dodecylbenzene sulfonic acid, calcium salt, and tristyryl phenol-polyethylene glycol ether or combination thereof, present in the range from 10% to 20% (w/w).

4. The fungicidal composition as claimed in claim 2, wherein the co-solvent is selected from the group comprising of 1-methyl-2-pyrrolidinone (NMP), dimethyl amide, N, N-Dimethyl methanamide, cyclohexanone, and dimethyl sulfoxide (DMSO) or combination thereof, present in the range from 15% to 25% (w/w).

5. The fungicidal composition as claimed in claim 2, wherein the solvent is selected from the group comprising of aromatic hydrocarbon (solvent C9), and xylene, present in the range from 40% to 70% (w/w).

6. The process for the preparation of emulsifiable concentrate composition as claimed in claim 1, wherein the process comprising steps of:
a) adding pyraclostrobin, tebuconazole active ingredients, Poly(oxy-1,2-ethanediyl), alpha-(tris(1-phenylethyl)phenyl)-omega-hydroxy-Calcium,4-dodecan-3-ylbenzene sulfonate, aromatic hydrocarbon solvent (C9), 1-methyl-2-pyrrolidinone and dimethyl amide co-solvents in a vessel, and
b) mixing all the ingredients under continuous stirring to obtain homogenous clear solution.