阅读说明：本技术 一种含有肟菌酯与代森锰锌的杀菌组合物的应用 (Application of bactericidal composition containing trifloxystrobin and mancozeb ) 是由 罗昌炎 詹姆斯.T.布里斯托 于 2018-07-13 设计创作，主要内容包括：本发明涉及一种含有肟菌酯与代森锰锌的杀菌组合物在降低或防止柑橘属植物被间座壳属真菌形成的毒素侵染中的用途,所述肟菌酯和代森锰锌的重量配比为1:1-1:50。一种降低或防止柑橘属植物被间座壳属真菌形成的毒素侵染的方法,用一种含有肟菌酯和代森锰锌的杀菌组合物同时处理或分别处理柑橘属植物的叶片、果实、枝、干。(The invention relates to application of a sterilization composition containing trifloxystrobin and mancozeb in reducing or preventing citrus from being infected by toxins formed by aschersonia fungi, wherein the weight ratio of the trifloxystrobin to the mancozeb is 1:1-1: 50. A method for reducing or preventing citrus from being infected by toxins formed by Aschersonia fungi comprises simultaneously or separately treating the leaves, fruits, branches and stems of citrus with a bactericidal composition containing trifloxystrobin and mancozeb.)

1. Use of a fungicidal composition comprising trifloxystrobin and mancozeb in reducing or preventing infestation of citrus by a toxin formed by a fungus of the genus acephate.

2. Use according to claim 1, to reduce or prevent infestation of the leaves, fruits, branches, trunks of citrus by toxins formed by fungi of the genus acephate.

3. Use according to claim 1, wherein the fungus of the genus Sphaerotheca is a D.citri fungus.

4. Use according to claim 1, wherein the citrus plant comprises grapefruit, mandarin orange, tangerine, orange, lemon.

5. The use according to claim 1, wherein the weight ratio of trifloxystrobin to mancozeb is 1:1-1:50, more preferably 1:1-1:45, more preferably 1:1-1:40, more preferably 1:1-1:35, more preferably 1:1-1:30, more preferably 1:1-1:25, more preferably 1:1-1:20, more preferably 1:1-1:15, more preferably 1:1-1: 10; more preferably 1:1 to 1:8, more preferably 1:2 to 1: 8.

6. The use of claim 1, wherein the sterilization composition containing trifloxystrobin and mancozeb is in the form of wettable powder, missible oil, suspending agent, suspoemulsion, microcapsule, seed coating agent, microemulsion, aqueous emulsion, water dispersible granule, foaming agent, paste, aerosol, ultra-low volume spray solution or granule.

7. A method for reducing or preventing infestation of citrus plants by toxins formed by Aschersonia fungi, characterized in that the citrus plants, the plant propagation material and plant organs which subsequently grow, the soil in which the citrus plants are intended to be grown, the citrus fruit stock are treated with a fungicidal composition comprising trifloxystrobin and mancozeb.

8. The method according to claim 7, characterized in that citrus plants, plant propagation material and plant organs that grow out later, the soil in which citrus plants are intended to be grown, citrus fruit stock are treated simultaneously or separately with a fungicidal composition comprising trifloxystrobin and mancozeb.

9. The method according to claim 7, wherein the leaves, fruits, branches, stems of citrus are treated simultaneously or separately with the fungicidal composition comprising trifloxystrobin and mancozeb.

10. The method according to claim 7, wherein the weight ratio of trifloxystrobin to mancozeb is 1:1-1:50, more preferably 1:1-1:45, more preferably 1:1-1:40, more preferably 1:1-1:35, more preferably 1:1-1:30, more preferably 1:1-1:25, more preferably 1:1-1:20, more preferably 1:1-1:15, more preferably 1:1-1: 10; more preferably 1:1 to 1:8, more preferably 1:2 to 1: 8.

11. A method of protecting citrus fruit stock from infestation by toxins formed by fungi of the genus diaporthe during storage comprising contacting the citrus fruit stock with a germicidal composition comprising trifloxystrobin and mancozeb.

12. The method of claim 11, comprising: (i) before harvesting; (ii) after harvesting; or (i) and (ii), comprising contacting the citrus fruit stock with a germicidal composition comprising trifloxystrobin and mancozeb.

Technical Field

The invention discloses application of a sterilization composition containing trifloxystrobin and mancozeb, and relates to application of the sterilization composition containing trifloxystrobin and mancozeb in reducing or preventing citrus plants from being infected by aschersonia fungi.

Background

The Diaporthe fungus is a very important group of phytopathogenic fungi, which usually cause extensive root, branch and fruit decay, necrosis, ulceration, leaf spotting, wilting, dying and rotting of the host plant.

Citrus is a large piece of fruit worldwide. The diaporthe fungi occurring on citrus take d.citri (h.s.fawc.) f.a.wolf as the main representative population, which is widely distributed in all citrus cultivated areas of the world and can cause three main disease types, namely citrus black spot disease (Melanose), Gummosis (Gummosis) and brown pedicular rot (Stem-end rot).

In order to reduce or prevent the infestation of citrus by the fungus of the genus diaporthe, the measures currently used are mainly the following:

cultivating a cultivated variety which is not easily infected by citrus interstation shell fungi, and introducing disease-free seedling diseases;

organic fertilizer is additionally applied in autumn and after fruit picking, soil is improved, cold and freezing are prevented, other plant diseases and insect pests are prevented, and wounds are avoided;

in early spring, the tree trunk is whitered, reasonably pruned and prevented by a medicament; (ii) a

The trunks are whitered in summer to prevent sunburn, and the orchard is reasonably pruned and ventilated and drained in rainy seasons to reduce the humidity of the orchard;

cleaning the garden in winter, scraping off gummosis hard blocks and rotten cortex and wood layers at the lower part, thoroughly cutting off resin diseased branches and sand diseased leaves, burning out intensively to reduce sources of orchard germs, and whitening trunks;

applying calcium magnesium phosphate fertilizer additionally, supplementing trace elements and avoiding the lack of element and yellowing of leaves;

reasonably pruning, leaving a proper amount of fruits to avoid the overload of fruit trees, harvesting in time, lightly picking and lightly releasing, reducing fruit injury, removing diseased fruits and damaged fruits in time, packaging and storing, and combining some antiseptic agents and measures to prevent and reduce the stem rot of the fruits.

However, these purely preventive measures are not satisfactory and the efficacy is not reliable, especially when the prevailing climatic conditions favor fungal infestation. It is therefore an object of the present invention to provide a composition for reducing or preventing infestation of citrus by toxins formed by fungi of the genus acephate.

Disclosure of Invention

The invention aims to provide the application of the bactericidal composition containing trifloxystrobin and mancozeb aiming at the defects, and the bactericidal composition is used for reducing or preventing citrus plants from being infected by toxins formed by aschersonia fungi.

Use of a fungicidal composition comprising trifloxystrobin and mancozeb for reducing or preventing infestation of citrus plants, plant propagation material and subsequently emerging plant organs, soil intended for growing citrus plants, citrus fruit stock by sigatoka fungi.

Surprisingly, it has been found that the use of trifloxystrobin in combination with mancozeb reduces or prevents infestation of citrus by toxins formed by the fungus of the diaporthe genus.

The invention provides application of a sterilization composition containing trifloxystrobin and mancozeb in reducing or preventing infection of citrus by toxins formed by Ascomatus fungi, wherein the trifloxystrobin and mancozeb sterilization composition is used in a proportion that the composition has a synergistic effect on reducing or preventing infection of citrus by toxins formed by Ascomatus fungi.

Use of a bactericidal composition containing trifloxystrobin and mancozeb in reducing or preventing infection of citrus by toxins formed by Aschersonia fungi, and reducing or preventing infection of citrus leaves, fruits, branches and stems by the toxins formed by Aschersonia fungi.

The interstratified fungal species is a d.citri fungal species.

The weight ratio of the trifloxystrobin to the mancozeb is preferably 1:1-1:50, more preferably 1:1-1:45, more preferably 1:1-1:40, more preferably 1:1-1:35, more preferably 1:1-1:30, more preferably 1:1-1:25, more preferably 1:1-1:20, more preferably 1:1-1:15, more preferably 1:1-1: 10; more preferably 1:1 to 1:8, more preferably 1:2 to 1: 8.

The invention provides a method for reducing or preventing the infestation of citrus by toxins formed by inhabitant fungi, the treatment of citrus plants, plant propagation material and plant organs that subsequently grow, the soil in which citrus plants are intended to be grown, citrus fruit stock with a fungicidal composition comprising trifloxystrobin and mancozeb.

A method for reducing or preventing infestation of citrus by toxins formed by Aschersonia fungi, by simultaneous or separate treatment of citrus plants, plant propagation material and subsequently emerging plant organs, soil intended for growing citrus plants, citrus fruit stock with a fungicidal composition comprising trifloxystrobin and mancozeb.

A method for reducing or preventing citrus from being infected by toxins formed by Aschersonia fungi comprises simultaneously or respectively treating citrus leaves, fruit branches and stems with a bactericidal composition containing trifloxystrobin and mancozeb.

The citrus plant includes fructus Citri Grandis, mandarin orange, fructus Citri Tangerinae, fructus Citri Junoris, and fructus Citri Limoniae.

Detailed Description

The genus Diaporthe (Diaporthe) fungi are a very important group of phytopathogenic fungi. The diaporthe fungi occurring on citrus take D.citri (H.S.Fawc.) F.A.wolf as the main representative group, are widely distributed in all citrus cultivated areas in the world, and can cause three main disease types of citrus black spot disease (Melanose), Gummosis (Gummosis) and brown pedicel rot (Stem-end).

Diaporthe (Diaporthe) fungi, which are important pathogenic fungi of citrus, are capable of sapropping and overwintering on dead citrus branches or in healthy citrus tissue. The toxin infection of citrus interstocks on citrus is caused by fungi, and when the toxin infection occurs seriously, the citrus orchard is destroyed in a large area, or a large amount of rotten fruits are caused in storage and transportation.

The invention provides application of a sterilization composition containing trifloxystrobin and mancozeb in reducing or preventing infection of citrus by toxins formed by aschersonia fungi.

The invention provides application of a sterilization composition containing trifloxystrobin and mancozeb in reducing or preventing infection of citrus by toxins formed by Ascomatus fungi, wherein the trifloxystrobin and mancozeb sterilization composition is used in a proportion that the composition has a synergistic effect on reducing or preventing infection of citrus by toxins formed by Ascomatus fungi. The weight ratio of the trifloxystrobin to the mancozeb is 1:1-1:50, more preferably 1:1-1:45, more preferably 1:1-1:40, more preferably 1:1-1:35, more preferably 1:1-1:30, more preferably 1:1-1:25, more preferably 1:1-1:20, more preferably 1:1-1:15, more preferably 1:1-1: 10; more preferably 1:1 to 1:8, more preferably 1:2 to 1: 8.

The weight ratio of the trifloxystrobin to the mancozeb can also be as follows:

1:1,1:2,1:3,1:4,1:5,1:6,1:7,1:8,1:9,1:10,1:11,1:12,1:13,1:14,1:15,1:16,1:17,1:18,1:19,1:20,1:21,1:22,1:23,1:24,1:25,1:26,1:27,1:28,1:29,1:30,1:31,1:32,1:33,1:34,1:35,1:36,1:37,1:38,1:39,1:40,1:41,1:42,1:43,1:44,1:45,1:46,1:47,1:48,1:49,1:50。

trifloxystrobin and mancozeb may also be applied in combination with the following fungicides:

acylalanines, such as benalaxyl (benalaxyl), metalaxyl (metalaxyl), methylfuroamide (ofarace), oxadixyl (oxadixyl);

amine derivatives, such as 4-dodecyl-2, 6-dimethylmorpholine (aldimorph), dodine (dodine), dodemorph (dodemorph), fenpropimorph (fenpropimorph), fenpropidin (fenpropidine), biguanide salts (guazatine), iminoctadine acetate (iminoctadine), spiroxamine (spiroxamine), tridemorph (tridemorph);

anilinopyrimidines, such as pyrimethanil, mepanipyrim or cyprodinil;

antibiotics, such as cycloheximide (cycloheximide), griseofulvin (griseofulvin), kasugamycin (kasugamycin), polymalemycin (natamycin), polyoxin (polyoxin) or streptomycin (streptomycin);

azoles, such as bitertanol (biterthanol), bromuconazole (bromoconazole), cyproconazole (cyproconazole), difenoconazole (difenoconazole), dinitonazole (dinitroconazol), fenbuconazole (fenbuconazole), fluquinconazole (fluquinconazole), flusilazole (flusilazole), hexaconazole (hexaconazole), imazalil (imazalil), myclobutanil (myclobutanil), penconazole (penconazole), propiconazole (propiconazole), prochloraz (prochloraz), prothioconazole (prothioconazole), tebuconazole (tebuconazole), triadimefon (triafol), triadimenol (triabendazole), triflumizole (triflumizole), triticonazole (triticonazole), 4- (4-methyl-5, 4-5-methyl-5-4-fluorophenyl) - [1, 6, 4, 6-methyl-triazole ] (1, 5, 4-5, 6-methyl-triazole [1, 6, 4, 5-methyl-triazole ];

dicarboximides, such as iprodione, myclozolin, procymidone, vinclozolin;

dithiocarbamates, such as ferbam, sodium (nabam), maneb (maneb), metam (metam), metiram (metiram), propineb (propineb), ziram (polycarbamate), thiram, ziram (zinam), zineb (zineb);

-heterocyclic compounds such as dichlofluanid (anilazine), benomyl (benomyl), boscalid (boscalid), carbendazim (carbendazim), carboxin (carboxin), carboxin (oxacarbxin), cyazofamid (cyazofamid), dazomet (dazomet), dithianon (dithianon), famoxadone (famoxadone), fenamidone (fenamidone), isopimazalol (fenarimol), fuberidazole (fuberidazole), flutolanil (flutolanil), furamethozole (furametpyr), propiconazole (mepronil), pyrimethal (nuarimol), thiabendazole (benazol), proquinazid (proquinazid), praziquantel (pyrofenox), pyroquine (pyroquinon), quinazine (thioquinazine (thiflufen), thifluzamide (fenpyrazamide), thiflufenazamide (thifluzamide), thifluzamide (fenpyrazamide), thifluzamide (fenpyrane), thifluzamide (thiofenamide (thifluzamide), thifluzamide (fenpyrazamide (thifluzamide), thifluzamide (thiflu;

copper fungicides, such as bordeaux mixture, copper acetate, copper oxychloride (copperoxochloride), basic copper sulfate;

phenylpyrroles, such as fenpiclonil or fluoroxas (fluoroxonil);

sulfenic acid derivatives, such as captafol (captafol), captan (captan), dichlofluanid (dichlofluanid), folpet (folpet), tolylfluanid (tolyfluoride);

cinnamide and similar compounds, such as dimethomorph, flurbiprofen or flumorph.

Strobilurins (strobilurins), such as azoxystrobin (azoxystrobin), dimoxystrobin (dimoxystrobin), fluoxastrobin (fluoxastrobin), trifloxystrobin (kresoxim-methyl), metominostrobin (metominobin), orysastrobin (orysastrobin), picoxystrobin (picoxystrobin), or trifloxystrobin (trifloxystrobin);

other fungicides, such as thiadiazoline (acibenzolar-S-methyl), benthiavalicarb (benthiavalicarb), chlorocyclopropanamide (carpropamid), chlorothalonil (chlorothalonil), cyflufenamid (cyflufenamid), cymoxanil (cymoxanil), diclomezine (diclomezine), diclocyanamide (diclocymet), diethofencarb (diethofencarb), edifenphos (edifenphos), ethaboxam (ethaboxam), fenhexamid (fenhexamid), fenhexamid (fenoxanil), pyrimethanzone (ferimzone), fluazinam (fluazinam), fosetyl-aluminium (foseyl-alum), iprovalicarb, hexachlorobenzene (hexazemazone), chlorothalonil (penfluniprol), penfluniumuron (penfluniprol), penfluniprol (penfluniprol), penoxsulam (penoxsulam), penoxsulam (thiophanate), penoxsulam), chlorothalonil (thiophanate), penoxsulide (thiophanate), penoxsulide.

The combined use of trifloxystrobin and mancozeb has a synergistic effect on reducing or preventing infestation of citrus by toxins formed by aschersonia fungi. By "synergistic" is meant an effect that increases infestation of the Aschersonia fungus in an overadditive manner. The combined use of trifloxystrobin and mancozeb was more effective in significantly reducing the infestation of citrus by toxins formed by the fungus of the diaporthe than would be expected on the basis of the activity of the single active compound.

The trifloxystrobin and mancozeb can be administered directly, in the form of their formulations or in the use forms prepared therefrom. Conventional formulations are, for example, wettable powders, emulsifiable concentrates, suspensions, suspoemulsions, microcapsules, seed coatings, microemulsions, aqueous emulsions, water dispersible granules, foams, pastes, aerosols, ultra-low volume sprays, granules. In each formulation form, the best possible distribution of the active compounds and auxiliaries used according to the invention is to be ensured.

The formulations of the invention can be prepared by mixing the active ingredients with fillers and/or surfactants in a known manner, it being possible for further conventional additives, such as siccatives and colorants, stabilizers, pigments, defoamers, preservatives, thickeners, etc., to be added.

According to the present invention, the term "filler" refers to a natural or synthetic organic or inorganic compound that can be combined or associated with an active compound to make it easier to apply to a subject (e.g. plants, crops or grasses). Thus, the filler is preferably inert, at least should be agriculturally acceptable. The filler may be solid or liquid.

Liquid fillers are typically: water, alcohols (e.g., methanol, ethanol, isopropanol, butanol, ethylene glycol, etc.), ketones (e.g., acetone, methyl ethyl ketone, diisobutyl ketone, cyclohexanone, etc.), ethers (e.g., diethyl ether, dioxane, methyl cellulose, tetrahydrofuran, etc.), aliphatic hydrocarbons (e.g., kerosene, mineral oil, etc.), aromatic hydrocarbons (e.g., benzene, toluene, xylene, mineral spirits, alkylnaphthalenes, chlorinated aromatic hydrocarbons, chlorinated aliphatic hydrocarbons, chlorobenzene, etc.), halogenated hydrocarbons, amides, sulfones, dimethyl sulfoxide, mineral and vegetable oils, animal oils, etc.

Solid fillers are typically: examples of the inorganic filler include vegetable powders (for example, particles of soybean powder, starch, cereal powder, wood powder, bark powder, saw dust, walnut shell powder, bran, cellulose powder, coconut shell, corn cob, and tobacco stalk, and residues after extraction of plant essence), paper, saw dust, synthetic polymers such as ground synthetic resins, clays (for example, kaolin, bentonite, and acid china clay), and talc powders. Silica (for example, diatomaceous earth, silica sand, mica, hydrous silicic acid, calcium silicate), activated carbon, natural minerals (for example, pumice, attapulgite, zeolite, etc.), calcined diatomaceous earth, sand, plastic media (for example, polyethylene, polypropylene, polyvinylidene chloride, etc.), inorganic mineral powders such as potassium chloride, calcium carbonate, calcium phosphate, etc., chemical fertilizers such as ammonium sulfate, ammonium phosphate, urea, ammonium chloride, etc., and soil fertilizers, and these may be used alone or in combination of 2 or more.

Examples of the surfactant that can be used for emulsifying, dispersing, solubilizing, and/or wetting the active ingredient compound include polyacrylic acid salts such as fatty alcohol polyoxyethylene ether, polyoxyethylene alkylaryl ether, polyoxyethylene higher fatty acid ester, phosphoric acid ester of polyoxyethylene alcohol or phenol, fatty acid ester of polyhydric alcohol, alkylaryl sulfonic acid, naphthalenesulfonic acid polymer, lignosulfonate, branched polymer of high molecular comb, butylnaphthalenesulfonate, alkylaryl sulfonate, sodium alkylsulfosuccinate, fats and oils, condensates of fatty alcohol and ethylene oxide, and alkyltaurates, and protein hydrolysates. Suitable oligosaccharides or polymers are based, for example, on ethylene monomers, acrylic acid, polyoxyethylene and/or polyoxypropylene alone or in combination with, for example, (poly) alcohols or (poly) amines.

Tackifiers such as carboxymethylcellulose and natural and synthetic polymers in the form of powders, granules or latices, such as gum arabic, polyvinyl alcohol and polyvinyl acetate, or else natural phospholipids, such as cephalins and lecithins, and synthetic phospholipids, can also be used in the formulations. Other additives are mineral oils and vegetable oils.

It is possible to use colorants such as inorganic pigments, for example iron oxide, titanium oxide and Prussian blue, and organic dyes, such as alizarin dyes, azo dyes or metal phthalocyanine dyes, and trace nutrients, such as salts of iron, manganese, boron, ketones, cobalt, molybdenum and zinc.

Disintegrants which may be used are selected from: one or more of bentonite, urea, ammonium sulfate, aluminum chloride, citric acid, succinic acid and sodium bicarbonate.

Stabilizers which may be used are selected from: one of sodium citrate and resorcinol.

The antifreeze agents which may be used are selected from: one or more of ethylene glycol, propylene glycol, glycerol and urea.

The defoaming agent is selected from: silicone oil, silicone compound, C10-20 saturated fatty acid compound, and C8-10 fatty alcohol compound.

Optionally, further additional components, such as protective colloids, binders, thickeners, thixotropic agents, penetrating agents, stabilizers, masking agents, can also be included.

The fungicidal compositions of the invention can also be used in combination with other agents having herbicidal, insecticidal or fungicidal properties, in particular with protective fungicides, or with insecticides, protectants, growth regulators, plant nutrients or soil conditioners.

If trifloxystrobin and mancozeb are used in combination with other fungicides, they are preferably used in combination with one or two other fungicides.

The composition of the invention can be mainly prepared in the form of preparation, namely, the substances in the composition are mixed; the ingredients of the composition may also be provided in a single dose, mixed in a tub or tank prior to use, and then diluted to the desired concentration. Wherein the formulation provided by the invention is preferably used as the main ingredient.

Diaporthe (Diaporthe) fungus is an important pathogenic fungus in citrus, and when the citrus tree is weakened and injured, the pathogenic fungus is easy to invade and damage. After low-temperature freezing in winter, germs enter by default, and when the temperature is proper and the rain humidity is high in the coming year, diseases of the oranges and tangerines caused by infection of the diaporthe fungi can be serious.

Toxins formed by infestation of metazoan fungi can harm the branches, trunks, leaves and fruits of citrus trees. The early stage is that the diseased part cortex is soft and water stain-like, grey brown or dark brown, has small cracks, often flows out brown glue solution and has vinasse taste, and then the cracks gradually deepen and expand, and the diseased part necrosis is dry and hard and slightly upwarp. When the lesion develops around the branch for 1 week and goes deep into the xylem, the vessel is blocked, the vessel tissue is destroyed, and the branch withers. After tender leaves and young fruits are infected by toxins formed by pathogenic bacteria, a plurality of yellow brown or black brown hard colloid small grains are generated on the surfaces of the leaves and the fruits, and are scattered or densely formed into pieces, so that the surfaces are rough and are similar to a plurality of fine sand grains, and the sand cover disease is formed. After the sand skin disease occurs in the young fruit period, the fruit is deteriorated, and the commodity value is influenced. After the fruits are infected with diseases in the orange garden, the fruits have brown pedicel rot in the storage period, namely the brown pedicel rot, and serious economic loss is caused.

The invention provides a method for reducing or preventing the infestation of citrus by toxins formed by the fungus diaporthe, by treating citrus, plant propagation material and plant organs that grow subsequently, the soil in which citrus is intended to be grown, citrus fruit stock with a fungicidal composition comprising trifloxystrobin and mancozeb.

A method for reducing or preventing infestation of citrus by toxins formed by Aschersonia fungi, by simultaneous or separate treatment of citrus plants, plant propagation material and subsequently emerging plant organs, soil intended for growing citrus plants, citrus fruit stock with a fungicidal composition comprising trifloxystrobin and mancozeb.

A method for reducing or preventing citrus from being infected by toxins formed by aschersonia fungi comprises the steps of simultaneously treating or respectively treating citrus leaves, fruit branches and stems by using a sterilization composition containing trifloxystrobin and mancozeb.

A method for reducing or preventing the infestation of citrus by the toxins formed by Aschersonia fungi comprises contacting a fungicidal composition comprising trifloxystrobin and mancozeb with the plant, the fruit of the plant, the plant propagation material and the plant organs which grow at a later time.

A method for reducing or preventing citrus from being infected by toxins formed by Aschersonia fungi comprises contacting a sterilization composition containing trifloxystrobin and mancozeb with citrus leaves, fruits, branches and stems.

The trifloxystrobin and mancozeb of the invention are applied in combination/combination. Comprises separate, sequential or simultaneous application of trifloxystrobin and mancozeb. Preferably, the trifloxystrobin and mancozeb are combined in a formulation comprising the composition of the trifloxystrobin and the mancozeb. The application time, the number of applications and the application rate used in each case must be adapted to the prevailing conditions and must be determined by the person skilled in the art for each individual case. In the case where trifloxystrobin and mancozeb of the present invention are used separately, they are preferably used in an interval of several seconds to several days, for example several seconds to 14 days or several seconds to 7 days.

The treatment of citrus leaves, citrus fruits or shoots can be protective and therapeutic. Before or after infestation by harmful fungi. Preferably, it is carried out as close as possible to the time of infection, i.e.before or after infection as close as possible to the time point of infection. The fruit can be picked in autumn and winter and then treated, so that the focus is clear, germs are eliminated, and the disease incidence is greatly reduced in the next year when the fruit is high in temperature and rainy.

The sterilization composition containing trifloxystrobin and mancozeb can be used as a foliar fungicide in crop protection and also can be used as an antiseptic and preservative for postharvest stored objects.

The sterilization composition containing trifloxystrobin and mancozeb can be used for treating citrus leaves, fruits, branches and stems to reduce or prevent the citrus from being infected by toxins formed by aschersonia fungi. When applied to citrus leaves, fruits, branches, and stems, trifloxystrobin and mancozeb are used in the form of an aqueous spray solution. Application is preferably by spraying. Spraying the spray solution over the entire above-ground portion of the citrus fruit; particularly, the spraying of all branches and leaves inside and outside the crown is needed, particularly, the spraying of diseased trunks, branches, leaves and young fruits is needed, and the condition that water drops drop downwards is suitable.

The fungicidal compositions of the present invention containing trifloxystrobin and mancozeb may also be used to treat stored products to reduce or prevent infestation of citrus by toxins formed by inhabitant fungi. After the fruits are infected with diseases in the orange garden, the fruits have brown pedicel rot in the storage period, namely the brown pedicel rot, and serious economic loss is caused.

The invention also provides a method of protecting a citrus fruit stock from infestation by toxins formed by aschersonia fungi during storage comprising contacting the citrus fruit stock with the fungicidal composition of the invention comprising trifloxystrobin and mancozeb.

The present invention also provides a method of protecting citrus fruit stores from infestation by toxins formed by fungi of the genus acerola during storage, comprising: (i) before harvesting; (ii) after harvesting; or (i) and (ii), the bactericidal composition containing trifloxystrobin and mancozeb is contacted with citrus fruits.

The sterilization composition containing trifloxystrobin and mancozeb can be processed by different processing methods:

spraying a liquid comprising the germicidal composition onto the above-ground parts of the plant, including citrus leaves, fruits, branches, dry contacts;

when the sterilizing composition is used for antisepsis and preservation of picked fruits, the sterilizing composition is diluted by water and is drained after fruit soaking;

the present invention provides a method of reducing or preventing infestation of citrus by toxins formed by inhabitant shell fungi, which may be a therapeutic, prophylactic or eradication method.

Usually for leaf, branch, fruit treatments: 0.1-10000mg/kg, preferably 10-1000 mg/kg, more preferably 100-800 mg/kg;

for the preservation of fruits after picking, 200 times and 2000 times of liquid can be diluted, and the fruits are drained after soaking;

the above-mentioned dosages are only typical exemplary dosages, and the person skilled in the art will adjust the application rate in the actual application according to the actual circumstances and needs, in particular according to the nature of the plants or crops to be treated and the severity of the germs.

An application of a sterilization composition containing trifloxystrobin and mancozeb in reducing or preventing citrus from being infected by toxins formed by aschersonia fungi.

It has been found that the combined use of trifloxystrobin and mancozeb reduces or prevents infestation of citrus by toxins formed by the fungus of the genus diaporthe.

The invention provides application of a sterilization composition containing trifloxystrobin and mancozeb in reducing or preventing infection of citrus by toxins formed by Ascomatus fungi, wherein the sterilization composition containing trifloxystrobin and mancozeb is used in a proportion that the composition has a synergistic effect on reducing or preventing infection of citrus by toxins formed by Ascomatus fungi.

The citrus of the invention refers to citrus plants, including pomelo, mandarin orange, tangerine, orange, lemon and the like.

Detailed Description

The invention will be further illustrated with reference to the following examples:

formulation examples: