FIELD OF THE INVENTION
The present invention relates to a synergistic composition and more particularly to a synergistic composition comprising plant growth regulators and fungicides.

BACKGROUND OF THE INVENTION
Plant growth regulators are vital ingredients in the hands of agriculturists to improve agricultural yields. They are used to regulate the growth of cultivated plants, weeds, and in vitro-grown plants and plant cells.
One such plant growth regulator, Gibberellic Acid, is used in commercial horticulture to improve plant growth and yields. Gibberellic acid ( (3S,3aR,4S,4aS,6S,8aR,8bR,11S)-6,11-dihydroxy-3-methyl-12-methylene-2-oxo-4a,6-ethano-3,8b-prop-1-enoperhydroindeno[1,2-b]furan-4-carboxylic acid; (3S,3aR,4S,4aS,7S,9aR,9bR,12S)-7,12-dihydroxy-3-methyl-6-methylene-2-oxoperhydro-4a,7-methano-9b,3-propenoazuleno[1,2-b]furan-4-carboxylic acid ) was first described in Trans. Nat. His. Soc. (Formosa), 1926, 16, 213 as gibberellin A and first marketed by ICI (Now Syngenta AG). It is described in Sr. no. 424 of The Pesticide Manual, Seventeenth edition, 2015. Gibberellic acid can be described by following formula:

It is used for multiple purposes, such as to improve fruit setting in pears, elongate cluster and increase berry size in grapes, promote uniform seedling growth in paddy, break dormancy in potatoes, improve colour in fruits and vegetables, increase size in vegetables, advance flowering and increase yield in strawberries etc. Gibberellic acid generally affects the plants parts above the soil at very low concentration.
Fungicides are biocidal chemical compounds used to kill fungi or fungal spores. Fungi can cause serious damage in agriculture, resulting in critical losses of yield, quality, and profit. Fungicides are used in agriculture to fight fungal infections in crops.
One such group of fungicides, i.e. strobilurin group of fungicides, are known to be effective against fungal diseases in economically important crops such as cereals, fruits, vegetables, oil seeds, spices etc. Strobilurin fungicides such as Azoxystrobin, Kresoxim methyl, Pyraclostrobin, and Picoxystrobin are available commercially in the form of water dispersible granule (WDG), emulsifiable concentrate (EC) and suspension concentrate (SC) formulations.
Azoxystrobin is the common name for methyl (2E)-2-{2-[6-(2-cyanophenoxy) pyrimidin-4-yloxy] phenyl}-3-methoxyacrylate. Azoxystrobin is known from European Patent EP 382375 B1 and has molecular formula C22H17N3O5 and belongs to strobilurin group of fungicides. Azoxystrobin can be described by following formula.

Its fungicidal activity is described in The Pesticide Manual, Seventeenth Edition, 2015. Azoxystrobin controls a variety of pathogens at application rates between 100 and 375 grams/hectare (g/ha). The standard composition of azoxystrobin available in the art is 23% SC.
Propineb (polymeric zinc propylenebis(dithiocarbamate)) is another protective fungicide used in agriculture. It is the propylene - analogue of zineb. Propineb is a flammable, yellow solid which is slightly soluble in water and decomposes in moist, acidic and alkaline media. It was first reported in H. Goeldner (pflanz.-Nachr. Bayer (Engl. Ed.), 1963, 16, 49). Propineb can be described by the following formula.

Propineb is a protectant foliar-applied fungicide with long residual activity and belongs to the dithiocarbamate group of compounds. It is used as a protective treatment on several crops for the control of various fungi, especially Oomycetes, Ascomycetes, Basidiomycetes and Fungi imperfecti. Propineb controls blight on potatoes and tomatoes, downy mildew on hops and vines, apple scab, blue mould on tobacco and Sigatoka disease of bananas. It can also be used on gooseberries, black currants, celery and cereals. Propineb is applied as a wettable granule (WG) or wettable powder (WP) formulation mainly as a spray.
The standard composition of propineb available in the art is 70 percent wettable powder. Propineb is also useful as bird repellent (EP 2421371 A1) and a physiological curative treatment for zinc deficiency (WO 2011107443 A1).
United States Patent 8071507 discloses a synergistic mixture of plant growth regulator (PGR) and fungicides consisting of paclobutrazole and a triazole selected from the group consisting of ifenoconazole, Ipconazole, Metconazole, Tebuconazole, Prothioconazole, Cyproconazole, Propiconazole and Epoxiconazole.
Chinese patent CN 1296745 A discloses a synergistic mixture of growth regulator and fungicide for preventing and treating diseases, promoting robust growth and resisting flattening of plants in wheat crop. However, there still exists a need for an alternative synergistic composition which facilitates enhanced plant growth.

SUMMARY OF THE INVENTION
An objective of the present invention is to provide an improved, stable and ready to use composition of plant growth regulator and fungicides which have improved plant growth regulating property and effective against a wide spectrum of fungi and which does not give rise to any fungal resistance.
It is therefore an object of the invention to provide method and compositions for increased plant yield.
Surprisingly, the inventors of the present disclosure have found that the plant growth regulating property of Gibberellic acid can be significantly enhanced when combined with fungicides Azoxystrobin and Propineb.
According to an embodiment of the invention there is provided a synergistic composition comprising a mixture of component (A) and component (B), wherein component (A) is Gibberellic acid (GA3, or of GA4 +7) and component (B) is Azoxystrobin and Propineb, wherein component (A) and component (B) are present in said composition in amounts which produce a synergistic effect.
In accordance with an embodiment of the invention, the synergistic composition comprises Gibberellic Acid in an amount of 0.01 to 0.05%.
In accordance with an embodiment of the invention, the synergistic composition comprises Azoxystrobin in an amount of 5 to 20%.
In accordance with an embodiment of the invention, the synergistic composition comprises Propineb in an amount in the range of 50 to 80%.
In accordance with an embodiment of the invention, the synergistic composition of the present invention may be in the form of a wettable powder (WP), soluble powder (SP), soluble granule (SG), water dispersible granule (WG).
In accordance with an embodiment of the invention, the synergistic composition also comprises dispersing agent, wetting agent, antifoam & filler.
In accordance with an embodiment of the invention, the dispersing agent is selected from the group consisting of sodium salt of naphthalene sulfonate condensate; Sulfonated aromatic polymer, sodium salt; Sodium Polycarboxilate; Ethanesulfonic acid 2-[methyl[(9Z)-1-oxo-9-octadecenyl]amino]-, sodium salt and present in an amount in the range from 1.0 to 10.0%, preferably 6%.
In accordance with an embodiment of the invention, the wetting agent is selected from the group consisting of sodium Lauryl sulphate, sodium alkyl naphthalene sulfonate blend, Sodium alkylnaphthalenesulfonate and present in an amount in the range from 1.0 to 10.0%, preferably 2%.
In accordance with an embodiment of the invention, the antifoaming agent is Dimethyl Polysiloxane and present in an amount in the range from 0.01 to 0.05%, preferably 0.02%.
In accordance with an embodiment of the invention, the filler is selected from the group consisting of Ammonium Sulphate, China Clay or Silica.
In accordance with an embodiment of the invention, the synergistic composition of the present invention is non-phytotoxic.

BRIEF DESCRIPTION OF DRAWINGS
Figure 1 is a flowchart for preparing a synergistic composition in the form of a Wettable Powder (WP).

DETAILED DESCRIPTION OF THE INVENTION
Discussed below are some representative embodiments of the present invention. The invention in its broader aspects is not limited to the specific details and representative methods. The illustrative examples are described in this section in connection with the embodiments and methods provided. The invention according to its various aspects is particularly pointed out and distinctly claimed in the appended claims read in view of this specification and appropriate equivalents.
It is to be noted that, as used in the specification and the appended claims, 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.
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.
The term "agrochemically effective amount" is that quantity of active agent, applied in any amount which will provide the required control of fungal pathogens and diseases. The particular amount is dependent upon many factors including, for example, the crop, type of fungus and disease sought to be controlled and environmental conditions. The selection of the proper quantity of active agent to be applied, however, is within the expertise of one skilled in the art. Further, the term “active ingredient” (A.I.) or “active agent” used herein refers to that component of the composition responsible for control of fungus or fungal disease and for regulating plant growth.
The present invention relates to novel active compound combinations comprising the plant growth regulator Gibberellic Acid and known fungicidal active ingredients Azoxystrobin and Propineb, which are highly suitable for controlling unwanted phytopathogenic fungi. The invention also relates to a method for the treatment of phytopathogenic fungi on plants and also for treating seeds.
Plant growth regulators (PGRs) are generally any substances or mixtures of substances intended to accelerate or retard the rate of growth or maturation, or otherwise alter the development of plants or their produce. Plant growth regulators (PGRs) affect growth and differentiation of plants. More specifically, various PGRs can, for example, reduce plant height, stimulate seed germination, induce flowering, darken leaf colouring, change the rate of plant growth and modify the timing and efficiency of fruiting.
It has now surprisingly been found that active compound combinations or compositions of the invention exhibit a synergistic effect.
The phenomena exhibited by a mixture of two or more agents to mutually affect each other and display an activity that is greater than the sum of their individual activities is designated as synergism.
It has now been found that active compound combinations comprising:
(1) Gibberellic Acid and
(2) Azoxystrobin and Propineb
have very good fungicidal properties.
Gibberellic Acid is selected from the group consisting of GA3, GA4+7 and combinations thereof.
If the active compounds in the active compound combinations according to the invention are present in certain weight ratios, the synergistic effect is particularly pronounced. However, the weight ratios of the active compounds can be varied in the active substance combinations in a relatively wide range.
The present invention further relates to a composition for controlling unwanted microorganisms comprising a) Gibberellic Acid and b) Azoxystrobin and Propineb. The fungicidal compositions of the present invention further comprise agriculturally suitable auxiliaries like dispersing agents, wetting agents, antifoam & fillers.
According to the invention, a filler is a natural or synthetic, organic or inorganic substance suitable for application to plants or plant parts or seeds. Examples of fillers include ammonium salts and ground natural minerals, such as kaolin, clay, talc, chalk, quartz, attapulgite, diatomaceous earth and synthetic minerals such as silica, alumina and natural or synthetic silicates.
The inventive compositions may also contain other ingredients, such as surfactants: dispersing agents and wetting agents having ionic or non-ionic properties, or mixtures of these surfactants. Examples include salts of polyacrylic acid, salts of lignosulphonic acid, salts of phenolsulphonic acid or naphthalenesulphonic acid, polycondensates of ethylene oxide with fatty alcohols or with fatty acids or with fatty amines, substituted phenols (preferably alkylphenols or arylphenols), salts of sulphosuccinic acid esters, tauryl derivatives (preferably alkyl taurates), phosphoric acid ester of Polyethoxy alcohols or phenols, fatty acid esters of polyols, and derivatives of the compounds containing sulphates, sulphonates and phosphates, e.g. Alkylaryl polyglycol ethers, alkylsulfonates, alkyl sulfates, arylsulfonates, protein hydrolysates, lignin-sulphite liquors and methylcellulose.
Preferred examples are sodium salt of naphthalene sulfonate condensate/Sulfonated aromatic polymer, sodium salt / Sodium Polycarboxilate/ Ethanesulfonic acid, 2-[methyl [(9Z)-1-oxo-9-octadecenyl]amino]-, sodium salt, sodium Lauryl sulphate/ sodium alkyl naphthalene sulfonate blend/ Sodium alkylnaphthalenesulfonate.
Anti-foaming agents are foam-inhibiting substances which may be included in the present invention. Preferably used Anti-foaming agent include Dimethyl Polysiloxane.
Furthermore, the formulation is in a dosage form selected from the group consisting of dry flowable (DF), wettable powder (WP), water dispersible granules (WDG), soluble powder (SP), soluble granules (SG) and suspension concentrate (SC). Preferably, the formulation is in a dosage form selected from the group consisting of wettable powder (WP), water dispersible granules (WDG) and suspension concentrate (SC).
The active compounds or compositions according to the invention exhibit a powerful microbicidal action and can contribute to controlling unwanted microorganisms, such as fungi and bacteria in crops such as
• Grape: Powdery mildew (Uncinula necator) & Downy mildew (Plasmopara viticola)
• Pomegranate: Fruit and leaf spots (Colletotrichum gloeosporioides)
• Chilli: Powdery mildew (Leveillula taurica); Fruit Rot and Die Back (Colletotrichum capsici); Damping off (Pythium aphanidermatum) etc
• Potato: Early Blight (Alternaria solani); Late blight of potato (Phytophthora infestans)
• Tomato: Early Blight (Alternaria solani); Late blight of potato (Phytophthora infestans); Tomato leaf spot (Septoria lycopersici); Buck eye rot (Phytophthora parasitica)
• Paddy: Blast (Pyricularia Oryzae Cavara) and Sheath Blight (Rhizoctonia solani); Brown Leaf spots
• Other fruits and vegetables
The compositions of the invention for controlling phytopathogenic fungi in crop protection comprise an effective, but non-phytotoxic amount of the active compounds.
Depending on the plant species, their location and growth conditions, the inventive treatment results in synergistic effects. For example better plant growth, increased tolerance to high or low temperatures, increased tolerance to drought or water or soil salinity, increased flowering performance, easier harvesting, accelerated maturation, higher yields, bigger fruits, larger plant height, greener leaf colour, earlier flowering, higher quality and / or a higher nutritional value of the harvested products, higher sugar concentration within the fruits, better storage stability and / or processability of the harvested products.
According to a further aspect of the present invention, the ratio of the components is so selected that a synergistic effect is obtained.
The benefits obtained by applying the compositions of the present invention to the foliage of the crops can be recognized even in the absence of an agronomically significant level of pest pressure by fungal plant pathogens.
The novel formulations combine plant growth regulator Gibberellic Acid with fungicides Azoxystrobin and Propineb and hence combine two different types of actives having different mechanisms of actions in one formulation, thereby precluding the need to spray the actives separately. The inventive formulations combine the advantages and provides ease of application to farmers where spraying a single formulation is enough to produce multiple benefits in the field.
The embodiments of the present invention are more particularly described in the following examples that are intended as illustrations only, since numerous modifications and variations within the scope of the present invention will be apparent to those of skill in the art. Unless otherwise noted, all parts, percentages and ratios reported in the following examples are on a weight basis and all reagents used in the examples were obtained or are available from the chemical suppliers.
EXAMPLE
The unit of each value below is “% w/w” i. e. the percentage by weight, relative to the weight of the total solution or composition unless otherwise specified. The compositions illustrated in Table 1 are formulated as a Wettable Powder (WP).
Table 1: Synergistic fungicidal compositions
Sr. No. Ingredient Role Quantity
1 Azoxystrobin (Basis of 100.0%) A.I. 5-20%
2 Propineb (Basis of 100.0%) A.I. 50-80%
3 Gibberellic Acid (Basis of 100.0%) A.I. 0.01-0.05%
4 Sodium salt of naphthalene sulfonate condensate/ Sulfonated aromatic polymer, sodium salt / Sodium Polycarboxilate/ Ethanesulfonic acid, 2-[methyl[(9Z)-1-oxo-9-octadecenyl]amino]-, sodium salt Dispersing Agent 1-10%
5 Sodium Lauryl sulphate/ sodium alkyl naphthalene sulfonate blend/ Sodium alkylnaphthalenesulfonate Wetting Agent 1-10%
6 Dimethyl Polysiloxane Antifoam 0.01-0.5%
7 Ammonium Sulphate /China Clay / Silica Filler Q.S. to make 100%
A.I. = Active Ingredient
Q.S. = Quantity Sufficient
The aforementioned fungicidal compositions can be formulated as a Wettable Powder (WP) by the process described below.
Process for preparing synergistic fungicidal composition in the form of Wettable Powder (WP):
The novel fungicidal compositions are prepared by the process described hereinafter and in Figure 1. The process for manufacture of 100 kg batch size of fungicidal composition comprising Gibberellic Acid and Azoxystrobin and Propineb is provided. The amounts of active ingredients presented may be greater than the values calculated taking into account the percentage purity of the active ingredients, to compensate for losses of said ingredients during the manufacturing process. It was observed that following said procedure on industrial scale the final yield of A.I. will be similar or same as to standardized values.
WP Formulation was produced by weighing all the raw materials such as wetting agent, dispersing agent, fillers and active ingredients in the given proportion and premixed in blender. The above homogeneous mass was ground by Jet mill/Air Classifier Mill (ACM) in presence of nitrogen gas. Grinding was carried out until a mean particle size of below 20 microns (D-90) was obtained. After grinding, mixed homogeneously by post blender. After homogeneous mixing, sample sent to check for quality parameters.
Comparative Evaluation of various ratios of the synergistic fungicidal combination against Powdery Mildew and Downy Mildew in grape vines
Method & Time of Application
Field tests of the compositions according to the present invention were conducted at various controlled trial sites. The performance of the fungicidal composition prepared as described above was compared against the known compositions of Propineb and Azoxystrobin and other recommended products, which were evaluated against Powdery Mildew and Downy Mildew diseases in grape vines and also the vigour/yield of the crop was tested. The grape vines were pruned in October. The required amounts of fungicides were weighed and diluted with water to get the stated concentration of the active compound and application was made using backpack type sprayer fitted pressure regulator and a vertical bar with one hollow cone nozzle using a spray fluid of 200 L/acre. Experimental design was in randomized blocks with five replications and each plot was measured an area of 120 sq. mts (10 vines each plot). The intensity for disease severity was analysed at 7, 10 and 14 days after each application. Percent disease index (PDI) was calculated by using formula adopted by Horsfall and Heuberger, 1942 as follows
PDI = Sum of all disease Ratings ____________________ x 100
Total no of leaves/fruits assessed x Maximum Disease rating

The per cent disease control (PDC) was calculated by the following formula
PDC = PDI in control – PDI in treatment______ x 100
PDI in Control
Table 2: Treatment details for evaluation of bio-efficacy of novel fungicidal composition against fungal diseases in grape vines
Particular Treatment Dose (a.i g/ha) Volume of formulation (g/mL)
T1 Azoxystrobin 6% + Propineb 60% + Gibberellic Acid (GA) 0.02% WP 90 + 900 + 0.3 1500
T2 108 + 1080 + 0.36 1800
T3 120 + 1200 + 0.4 2000
T4 Propineb 70% WP 1050 1500
T5 Azoxystrobin 23% SC 125 500
T6 Propineb 70% WP + GA Tech (Tank Mix) 1050 + 10 1500 mL + 10 g
T7 Azoxystrobin 23% SC + GA Tech (Tank Mix) 125 + 10 500 mL + 10 g
T8 Untreated Control (Water Spray) - -
The phytotoxic effect of different treatment schedules was also observed in ten randomly selected plants from each plot as suggested by Rao (1983) on 0-10 scale (given below) for yellowing, stunting, necrosis, epinasty, hyponasty etc. Observations were taken on 1, 3, 7, & 14 days after application.
Table 3: Phytotoxicity visual scoring 0-10 (EWRC system)
Description of crop Rating Remarks Description of crop Rating Remarks
No injury, normal 0 Immune Severe injury, no recovery possible 6 Moderately tolerant
Slight injury / discoloration 1 Resistant Sever injury, stand loss 7 Susceptible
Some stand crop, stunning / discoloration 2 Moderately Almost destroyed, a few plants surviving 8 Susceptible
Injury more pronounced but not persistent 3 Tolerant Very few plants alive 9 Highly susceptible
Moderate injury, recovery possible 4 Tolerant Complete destruction 10 Highly susceptible
Injury more persistent, recovery more doubtful 5 Moderately tolerant
The effectiveness of the individual and the combined treatment for control of disease spectrum for Grape vines @ different doses is given in Table below.

Table 4: Effect of different combinations on Percent disease index (PDI) of Powdery Mildew and Downy Mildew diseases in Grape vines
Sr. No. Treatments Powdery Mildew on leaves (PDI)* (Mean of 7 & 14 days after spray) Downy Mildew on leaves (PDI)*
(Mean of 7 & 14 days after spray)
PTO I spray II spray III spray PTO I spray II spray III
spray
1 T1 4.39
(12.09) 5.38
(13.41) 10.12
(18.55) 13.99
(21.96) 14.68
(22.53) 12.24
(20.48) 17.46
(24.70) 23.90
(29.27)
2 T2 4.74
(12.57) 3.96
(11.48) 9.85
(18.29) 11.32
(19.66) 15.30
(23.03) 10.83
(19.21) 14.99
(22.78) 21.87
(27.88)
3 T3 4.78
(12.63) 4.92
(12.82) 10.17
(18.60) 12.30
(20.53) 15.23
(22.97) 11.19
(19.54) 15.35
(23.07) 22.91
(28.60)
4 T4 4.80
(12.66) 16.42
(23.90) 23.75
(29.17) 29.50
(32.90) 14.99
(22.78) 16.62
(24.06) 21.87
(27.88) 35.03
(36.29)
5 T5 4.65
(12.45) 9.30
(17.76) 13.62
(21.66) 18.73
(25.64) 14.89
(22.70) 12.42
(20.64) 16.32
(23.83) 24.06
(29.37)
6 T6 4.29
(11.95) 16.09
(23.65) 23.28
(28.85) 28.91
(32.53) 14.69
(22.54) 16.29
(23.80) 21.43
(27.58) 34.33
(35.87)
7 T7 4.39
(12.09) 9.11
(17.57) 13.35
(21.43) 18.36
(25.37) 14.59
(22.46) 12.17
(20.42) 15.99
(23.57) 23.58
(29.07)
8 T8 4.82
(12.68) 29.96
(33.19) 36.62
(37.24) 39.52
(38.95) 14.93
(22.73) 41.78
(40.27) 52.20
(46.26) 70.30
(56.98)
PTO- Pre Treatment Observation, PDI- Percent Disease Index
* Mean of four replications
Values in parentheses are arcsine-transformed values
In a column, means followed by a common letter are not significantly different at the 5% level by DMRT
Table 5: Effect of different combinations on Percent disease Control (PDC) of Powdery Mildew and Downy Mildew diseases and Yield in Grape Vines
Sr. No Treatments Powdery Mildew (PDC) (Mean of 7 & 14 days after spray) Downy Mildew (PDC) (Mean of 7 & 14 days after spray) Fruit Yield*
(t ha-1)
I spray II spray III spray I spray II spray III spray
1 T1 82.04 72.36 64.60 70.70 66.55 66.00 27.08
2 T2 86.78 73.10 71.36 74.08 71.28 68.89 28.72
3 T3 83.58 72.23 68.88 73.22 70.59 67.41 28.48
4 T4 45.19 35.14 25.35 60.22 58.10 50.17 21.88
5 T5 68.96 62.81 52.61 70.27 68.74 65.78 24.91
6 T6 46.30 36.43 26.85 61.01 58.95 51.17 22.76
7 T7 69.59 63.54 53.54 70.87 69.37 66.46 25.91
8 T8 0.00 0.00 0.00 0.00 0.00 0.00 14.40
PDC: Percent disease control
t ha-1: tons per hectare
Table 6: Phytotoxic Effect of Different Treatments on Grape Vines
Treatments Phytotoxicity ratings*
Leaf injury Wilting Vein clearing
R1 R2 R3 R1 R2 R3 R1 R2 R3
T1 0 0 0 0 0 0 0 0 0
T2 0 0 0 0 0 0 0 0 0
T3 0 0 0 0 0 0 0 0 0
T4 0 0 0 0 0 0 0 0 0
T5 0 0 0 0 0 0 0 0 0
T6 0 0 0 0 0 0 0 0 0
T7 0 0 0 0 0 0 0 0 0
*Observed on 1, 3, 7, & 14 days after each spraying
The aforementioned trial results indicate that a composition comprising Azoxystrobin (6%) and Propineb (60%) and Gibberellic Acid (0.02%) formulated as a wettable powder (WP) is most effective against all the target fungi and affords highest fruit yield.

The synergistic composition of present invention gives an advantage to the farmers for ease of applying the fungicide and plant growth regulator together instead of applying them separately and thus helping the farmer in saving time, manpower and money.
From the foregoing it will be observed that numerous modifications and variations can be effectuated without departing from the true spirit and scope of the novel concepts of the present invention. It is to be understood that no limitations with respect to the specific embodiments illustrated is intended or should be inferred. It should be understood that all such modifications and improvements have been deleted herein for the sake of conciseness and readability but are properly within the scope of the following claims.

We Claim:
1. A synergistic composition comprising a mixture of:
a) Gibberellic Acid; and
b) Azoxystrobin & Propineb.
2. The composition as claimed in claim 1, wherein Gibberellic Acid is present in an amount of 0.01 to 0.05%.
3. The composition as claimed in claim 1, wherein Azoxystrobin is present in an amount of 5 to 20%.
4. The composition as claimed in claim 1, wherein Propineb is present in an amount of 50 to 80%.
5. The composition as claimed in claims 1 to 4, wherein the composition is in the form of a wettable powder (WP), soluble powder (SP), soluble granule (SG), water dispersible granule (WG).
6. The composition as claimed in claims 1 to 5, wherein the composition comprises dispersing agent, wetting agent, antifoam & filler.
7. The composition as claimed in claim 6, wherein the dispersing agent is selected from the group consisting of sodium salt of naphthalene sulfonate condensate; Sulfonated aromatic polymer, sodium salt; Sodium Polycarboxilate; Ethanesulfonic acid 2-[methyl[(9Z)-1-oxo-9-octadecenyl]amino]-, sodium salt and present in an amount in the range from 1.0 to 10.0%, preferably 6%.
8. The composition as claimed in claim 6, wherein the wetting agent is selected from the group consisting of sodium Lauryl sulphate, sodium alkyl naphthalene sulfonate blend, Sodium alkylnaphthalenesulfonate and present in an amount in the range from 1.0 to 10.0%, preferably 2%.
9. The composition as claimed in claim 6, wherein the antifoaming agent is Dimethyl Polysiloxane and present in an amount in the range from 0.01 to 0.05%, preferably 0.02%.
10. The composition as claimed in claim 6, wherein the filler is selected from the group consisting of Ammonium Sulphate, China Clay or Silica.
11. The composition as claimed in any of the claims 1 to 10, wherein said composition is non-phytotoxic.