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WO2018126878A1 - 一种包含苯并异噻唑啉酮类和四氟醚唑的杀菌剂组合物 - Google Patents

一种包含苯并异噻唑啉酮类和四氟醚唑的杀菌剂组合物 Download PDF

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Publication number
WO2018126878A1
WO2018126878A1 PCT/CN2017/116817 CN2017116817W WO2018126878A1 WO 2018126878 A1 WO2018126878 A1 WO 2018126878A1 CN 2017116817 W CN2017116817 W CN 2017116817W WO 2018126878 A1 WO2018126878 A1 WO 2018126878A1
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Prior art keywords
tetrafluoroetherazole
composition
active component
composition according
bit
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French (fr)
Inventor
仲汉根
季红进
花伟
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Jiangsu Huifeng Bio Agriculture Co Ltd
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Jiangsu Huifeng Bio Agriculture Co Ltd
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647—Triazoles; Hydrogenated triazoles
    • A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2

Definitions

  • the invention belongs to the field of agricultural plant protection, in particular to a germicidal composition with improved properties, in particular to a fungicide composition comprising benzisothiazolinones and tetrafluoroetherazole.
  • Benzoisothiazolinones are a new type of broad-spectrum fungicide mainly used for the prevention and treatment of various bacterial and fungal diseases such as cereal crops, vegetables and fruits.
  • the mechanism of bactericidal action mainly includes destroying the nuclear structure of the pathogen, causing it to lose the heart part and failing to death and interfering with the metabolism of the pathogenic cells, causing its physiological disorder and ultimately leading to death. It can effectively protect plants from pathogens in the early stage of disease occurrence. Increasing the dosage after disease occurrence can obviously control the spread of pathogens, thus achieving the dual functions of protection and eradication.
  • Tetraconazole belongs to the second-generation triazole fungicide. It has fluorine in the molecular structure and the bactericidal activity ratio is 2-3 times that of the first generation. The sterilization spectrum is broad, efficient and has a long-lasting effect of 4-6. Week, has protective and therapeutic effects, and has good systemic conductivity. Suitable crops cereal crops such as wheat, barley, oats, rye, etc., fruit trees such as bananas, grapes, pears, apples, etc., vegetables such as melons, beets, ornamental plants.
  • the object of the invention is to solve the resistance of the bactericide in practical application and the problem of soil residue, and to screen out the bactericides with different sterilization principles to obtain a new fungicide composition, so as to improve the control effect of the bactericide and delay the resistance.
  • sexual production reducing the amount of application, reducing the cost of prevention.
  • Another object of the present invention is to provide an application comprising a combination of two active ingredients A and B bactericides for controlling crop diseases in the agricultural field.
  • the object of the invention can be achieved by the following measures:
  • a synergistic fungicidal composition comprising two active components A and B, wherein active component A is a compound having the structure of formula (I) and active component B is tetrafluoroetherazole.
  • R is selected from H or a C 1 - C 8 alkyl group.
  • the C 1 -C 8 alkyl group in the present invention means a linear or branched alkyl group having 1 to 8 carbon atoms, and includes a C 1 alkyl group (e.g., methyl group) and a C 2 alkyl group (e.g., ethyl group). , C 3 alkyl (such as n-propyl, isopropyl), C 4 alkyl (such as n-butyl, isobutyl, tert-butyl, sec-butyl), C 5 alkyl (such as n-pentyl, etc.) , C 6 alkyl, C 7 alkyl, C 8 alkyl. It includes, but is not limited to, C 1 -C 6 alkyl, C 1 -C 5 alkyl, C 1 -C 4 alkyl, and the like.
  • R is selected from H or a C 1 -C 4 alkyl group.
  • R is selected from the group consisting of H, -CH 3 or -C 4 H 9 .
  • A is 1,2-benzisothiazolin-3-one (abbreviated as BIT in the specification).
  • R is CH 3
  • A is 2-methyl-1,2-benzisothiazolin-3-one (abbreviated as MBIT in the specification).
  • R is C 4 H 9
  • A is 2-butyl-1,2-benzisothiazolin-3-one
  • the "butyl group” in the formula is preferably n-butyl (instruction Referred to as BBIT).
  • the inventors have found through experiments that the composition of the present invention is effective for controlling bacterial or fungal diseases of crops, and more importantly, the application amount is reduced and the use cost is lowered.
  • the compounds containing component A and component B have different structural types and different mechanisms of action. The combination of the two can expand the bactericidal spectrum, and can delay the generation and development of pathogen resistance to a certain extent, and component A and group There is no cross-resistance between points B.
  • the weight ratio between the two components in the bactericide composition of the present invention is from 20 to 1:1 to 20.
  • the weight ratio between the components of component A and component B can be further optimized to 10 to 1:1 to 10.
  • the weight ratio between the two components of A and B can be arbitrarily adjusted within the range of the following ratios 20:1, 19:1, 18:1, 17:1, 16:1. 15:1, 14:1, 13:1, 12:1, 11:1, 10:1, 9:1, 8:1, 7:1, 6:1, 5:1, 4:1, 3: 1, 2:1, 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, or within the range of any two of the above ratios Selection is made, and these ratios can be understood as weight ratios, and may also include molar ratios.
  • composition of the present invention can be made into a pesticide-acceptable dosage form from the active ingredient and agrochemical adjuvant or adjuvant. Further, the composition comprises from 2 to 80% by weight of the active ingredient and from 98 to 20% by weight of the pesticide adjuvant to the pesticide-acceptable dosage form.
  • the present invention provides the use of a bactericidal composition comprising component A and component B for controlling crop diseases in the agricultural sector, in particular for controlling fungal or bacterial diseases of certain crops.
  • composition may specifically comprise an agrochemical adjuvant or an auxiliary such as one or more of a carrier, a solvent, a dispersing agent, a wetting agent, an adhesive, a thickener, a binder, a surfactant or a fertilizer.
  • auxiliary such as one or more of a carrier, a solvent, a dispersing agent, a wetting agent, an adhesive, a thickener, a binder, a surfactant or a fertilizer.
  • auxiliary such as one or more of a carrier, a solvent, a dispersing agent, a wetting agent, an adhesive, a thickener, a binder, a surfactant or a fertilizer.
  • auxiliary such as one or more of a carrier, a solvent, a dispersing agent, a wetting agent, an adhesive, a thickener, a binder, a surfactant or a fertilizer.
  • Common auxiliaries can be mixed during the application.
  • auxiliaries or auxiliaries may be solid or liquid, they are usually materials commonly used in the processing of dosage forms, such as natural or regenerated minerals, solvents, dispersants, wetting agents, adhesives, thickeners, binders. .
  • the method of application of the compositions of the invention comprises the use of the compositions of the invention for aerial parts of plants, in particular leaves or foliage. You can choose to soak or apply to the surface of the control object.
  • the frequency of administration and the amount administered will depend on the biological and climatic conditions of the pathogen.
  • the plant growth site such as rice fields, may be wetted with a liquid formulation of the composition, or the composition may be applied to the soil in solid form, such as in the form of granules (soil application), the composition may be passed from the soil to the plant through the roots of the plant. In vivo (systemic action).
  • composition of the present invention can be prepared into various pesticide-acceptable dosage forms including, but not limited to, emulsifiable concentrates, suspending agents, wettable powders, water-dispersible granules, powders, granules, aqueous preparations, aqueous emulsions, microemulsions, poison baits.
  • the dosage form of the invention employs a wettable powder, a suspending agent, a water-dispersible granule, an aqueous emulsion or a microemulsion.
  • the compositions may be applied by spraying, misting, dusting, spreading or pouring, and the like.
  • composition of the present invention can be prepared into various dosage forms by a known method, and the active ingredient and the auxiliary agent, such as a solvent, a solid carrier, and, if necessary, can be uniformly mixed and ground together with the surfactant to prepare a desired preparation. Dosage form.
  • the above solvent may be selected from aromatic hydrocarbons, preferably containing from 8 to 12 carbon atoms, such as a mixture of xylenes or substituted benzenes, phthalates such as dibutyl phthalate or dicaprylic acid, aliphatic hydrocarbons such as rings.
  • aromatic hydrocarbons preferably containing from 8 to 12 carbon atoms, such as a mixture of xylenes or substituted benzenes, phthalates such as dibutyl phthalate or dicaprylic acid, aliphatic hydrocarbons such as rings.
  • Alkenes or paraffins, alcohols and glycols and their ethers and esters such as ethanol, ethylene glycol, ethylene glycol monomethyl
  • ketones such as cyclohexanone
  • highly polar solvents such as N-methyl-2 Pyrrolidone, dimethyl sulfoxide or dimethylformamide
  • vegetable or vegetable oils such as soybean oil.
  • the above solid carriers are typically natural mineral fillers such as talc, kaolin, montmorillonite or activated clay.
  • a highly dispersible silicic acid or a highly dispersible adsorbent polymer carrier such as a particulate adsorbent carrier or a non-adsorbing carrier, and a suitable particulate adsorbent carrier is porous, such as pumice, bentonite or Bentonite; a suitable non-adsorbing carrier such as calcite or sand.
  • a large amount of pre-granulated materials of inorganic or organic nature can be used as a carrier, in particular dolomite.
  • Suitable surfactants according to the chemical nature of the active ingredients in the composition of the invention are lignosulfonic acid, naphthalenesulfonic acid, phenolsulfonic acid, alkaline earth metal or amine salts, alkylarylsulfonates, alkyl sulfates , alkyl sulfonates, fatty alcohol sulphates, fatty acids and sulfated fatty alcohol glycol ethers, as well as condensates of sulfonated naphthalene and naphthalene derivatives with formaldehyde, condensates of naphthalene or naphthalene sulfonic acid with phenol and formaldehyde , polyoxyethylene octyl phenyl ether, ethoxylated isooctyl phenol, octyl phenol, nonyl phenol, alkyl aryl polyglycol ether, tributyl benz
  • the active ingredient A can be first dissolved in certain specific basic substances to form a benzisothiazolin metal salt.
  • suitable basic substances include: alkali metal carbonates, alkali metal hydrogens Oxide (such as sodium hydroxide, potassium hydroxide), alkali metal alkoxy carbonate, alkali metal alkoxide or magnesium methoxide.
  • the two active ingredients in the compositions of the present invention exhibit synergistic effects, the activity of which is more pronounced than the expected sum of activity using a single compound, and the individual activity of a single compound.
  • the synergistic effect is manifested by allowing for a reduced application rate, a broader fungicidal control profile, quicker effect, longer lasting control effect, better control of plant harmful fungi by only one or a few applications, and broadening of possible application. Intervals. These properties are particularly desirable in the practice of plant fungi control.
  • the fungicide composition of the invention can be applied to the field of agricultural diseases for controlling crop diseases, and the specific diseases targeted include, but not limited to, wheat diseases (such as wheat scab, wheat powdery mildew, wheat rust, etc.) and rice diseases (such as: Rice sheath blight, rice blast disease, rice blast, rice bacterial streaks, etc., corn diseases (such as: corn smut, corn big spot, corn spot), cucumber diseases (such as: cucumber frost Mold disease, cucumber powdery mildew, cucumber anthracnose, cucumber bacterial angular spot disease, etc., tomato diseases (such as: tomato anthracnose, tomato gray mold, tomato bacterial angular spot disease, etc.), grape diseases (such as: grape frost Mildew, grape gray mold, grape powdery mildew), apple disease (such as apple ring disease, apple anthracnose, etc.), citrus disease (citrus canker disease, citrus canker, citrus anthracnose), tobacco disease (tobacco wildfire disease) )Wait.
  • the other characteristics exhibited by the bactericidal composition of the present invention are mainly as follows: 1.
  • the compounding of the composition of the present invention has obvious synergistic effect; 2. Since the chemical composition of the two single agents of the present composition is greatly different, the effect The mechanism is completely different, there is no cross-resistance, and the problem of resistance caused by the separate use of the two single agents can be delayed; 3.
  • the composition of the present invention is safe and safe for crops. It has been proved by experiments that the bactericidal composition of the invention has stable chemical properties, remarkable synergistic effect, and exhibits obvious synergistic effect and complementary effect on the control object.
  • the active ingredient A and the B active ingredient are mixed well with a solvent, an emulsifier, a dispersing agent, an antifreezing agent, etc., and the water emulsion is prepared by adding water and then uniformly mixing.
  • Example 2 30% BIT ⁇ tetrafluoroetherazole aqueous emulsion (1:5)
  • Example 3 42% BIT ⁇ tetrafluoroetherazole aqueous emulsion (1:20)
  • BIT 2% tetrafluoroetherazole 40%, polyvinyl alcohol 10.47%, xylene 15%, methylpentanol 10.21%, ethylene glycol 10%, water to 100%.
  • Example 4 16% MBIT ⁇ tetrafluoroetherazole aqueous emulsion
  • Example 5 30% MBIT ⁇ tetrafluoroetherazole aqueous emulsion
  • MBIT was 5%
  • tetrafluoroetherazole was 25%
  • the remaining components were prepared in the same manner as in Example 2.
  • Example 6 42% MBIT ⁇ tetrafluoroetherazole water emulsion
  • Example 7 16% BBIT ⁇ tetrafluoroetherazole aqueous emulsion
  • Example 8 30% BBIT ⁇ tetrafluoroetherazole aqueous emulsion
  • BBIT was 5%
  • tetrafluoroetherazole was 25%
  • the remaining components were prepared in the same manner as in Example 2.
  • Example 9 42% BBIT ⁇ tetrafluoroetherazole aqueous emulsion
  • the active ingredient active group A and the active component B, and the components such as a dispersing agent, a wetting agent, a thickener and water are uniformly mixed according to the formula, and after being sanded and/or sheared at a high speed, a semi-finished product is obtained. After the analysis, the water is mixed and evenly filtered to obtain the finished product.
  • Example 12 22% BIT ⁇ tetrafluoroetherazole suspension (1:10)
  • MBIT was 2.5%
  • tetrafluoroetherazole was 0.5%
  • the remaining components were prepared in the same manner as in Example 11.
  • Example 17 3% BBIT ⁇ tetrafluoroetherazole suspension
  • the active ingredient A and the B active ingredient are sufficiently mixed with various auxiliary agents and fillers, and are pulverized by an ultrafine pulverizer to obtain a wettable powder.
  • Example 19 55% BIT ⁇ tetrafluoroetherazole wettable powder (10:1)
  • Example 20 15% BIT ⁇ tetrafluoroetherazole wettable powder (1:1)
  • Example 21 24% BIT ⁇ tetrafluoroetherazole wettable powder (1:15)
  • Example 22 55% MBIT ⁇ tetrafluoroetherazole wettable powder
  • Example 23 15% MBIT ⁇ tetrafluoroetherazole wettable powder
  • Example 24 24% MBIT ⁇ tetrafluoroetherazole wettable powder
  • Example 25 55% BBIT ⁇ tetrafluoroetherazole wettable powder
  • Example 26 15% BBIT ⁇ tetrafluoroetherazole wettable powder
  • Example 27 24% BBIT ⁇ tetrafluoroetherazole wettable powder
  • the control effect is converted into the probability value (y)
  • the concentration of the drug solution ( ⁇ g/ml) is converted into the logarithm value (x)
  • the virulence equation is calculated by the least squares method and the concentration EC50 is suppressed
  • the virulence index of the drug is calculated according to the method of Sun Yunpei.
  • the co-toxicity coefficient (CTC) is calculated according to the method of Sun Yunpei.
  • Measured virulence index (ATI) (standard drug EC50 / test drug EC50) * 100
  • Theoretical virulence index (TTI) A virulence index * Percentage of A in the mixture + B virulence index * Percentage of B in the mixture
  • CTC Co-toxicity coefficient [mixture measured virulence index (ATI) / mixed theory virulence index (TTI)] * 100
  • CTC ⁇ 80 the composition showed antagonism, 80 ⁇ CTC ⁇ 120, the composition showed an additive effect, CTC ⁇ 120, and the composition showed synergistic effect.
  • Test method In the early stage of the disease, the first spray was immediately performed, and after 7 days, the second application was carried out, each treatment of 4 cells, 20 square meters per cell. The incidence of the disease was investigated before the drug and 11 days after the second drug. Each plot was randomly sampled at 5 points, and 5 crops were investigated at each point. The percentage of the lesion area per leaf on the whole plant was counted and graded. Disease index and control effect.
  • Grade 1 less than 5 leaf lesions, less than 1 cm in length;
  • Grade 3 6-10 leaf lesions, some lesions are longer than 1 cm;
  • Grade 5 11-25 leaf lesions, some lesions are connected into pieces, and the lesion area accounts for 10-25% of the leaf area;
  • Grade 7 more than 26 leaf lesions, the lesions are connected into pieces, and the lesion area accounts for 26-50% of the leaf area;
  • Grade 9 The lesions are connected into pieces, and the area of the lesions accounts for more than 50% of the leaf area or the whole leaves are dead.

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
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Abstract

本发明提供了一种杀菌剂组合物，该组合物包含两种有效成分A和B，活性组分A为具有式(Ⅰ)结构的化合物，活性组分B为四氟醚唑，两组分之间的重量比为20～1:1～20。本发明还提供了该组合物的制备方法及用途。试验结果表明，本发明提供的上述杀菌组合物增效明显，更重要的是施用量减少，使用成本降低。该杀菌组合物能有效防治作物的某些特定的细菌或真菌病害。通过将不同作用机制和作用方式的杀菌剂进行复配，对于扩大杀菌谱和延缓真菌、细菌抗性以及提高防治效果等方面具有很好的作用。

Description

一种包含苯并异噻唑啉酮类和四氟醚唑的杀菌剂组合物 技术领域
本发明属于农业植物保护领域，特别是涉及一种具有改进性能的杀菌组合物，具体地说是涉及一种包含苯并异噻唑啉酮类和四氟醚唑的杀菌剂组合物。
背景技术
苯并异噻唑啉酮类化合物是一种新型、广谱杀菌剂，主要用于防治和治疗禾谷类作物、蔬菜、水果等多种细菌、真菌性病害。其杀菌作用机理，主要包括破坏病菌细胞核结构，使其失去心脏部位而衰竭死亡和干扰病菌细胞的新陈代谢，使其生理紊乱，最终导致死亡两个方面。在病害发生初期使用可有效保护植株不受病原物侵染，病害发生后酌情增加用药量可明显控制病菌的蔓延，从而达到保护和铲除的双重作用。
四氟醚唑(Tetraconazole)属于第二代三唑类杀菌剂，分子结构中含氟，杀菌活性比是第一代的2-3倍，杀菌谱广、高效、持效期长达4-6周，具有保护和治疗作用，并有很好的内吸传导性能。适宜作物禾谷类作物如小麦、大麦、燕麦、黑麦等，果树如香蕉、葡萄、梨、苹果等，蔬菜如瓜类，甜菜，观赏植物等。可以防治白粉菌属、柄锈菌属、喙孢属、核腔菌属和壳针孢属菌引起的病害如小麦白粉病、小麦散黑穗病、小麦锈病、小麦腥黑穗病、小麦颖祜病、大麦云纹病、大麦散黑穗病、大麦纹枯病、玉米丝黑穗病、高粱丝黑穗病、瓜果白粉病、香蕉叶斑病、苹果斑点落叶病、梨黑星病和葡萄白粉病等。既可茎叶处理，也可作种子处理使用。
实际的农药经验已经表明，重复且专一施用一种活性化合物来防治有害真菌在很多情况下将导致真菌菌株的快速选择性，为降低抗性真菌菌株选择性的危险性，目前通常使用不同活性化合物的混合物来防治有害真菌。通过将具有不同作用机理的活性化合物进行组合，可延缓抗性产生，降低施用量，减少防治成本。
发明内容
本发明的目的是针对杀菌剂在实际应用中抗性以及土壤残留问题，筛选出不同杀菌原理的杀菌剂进行复配，得到一种新的杀菌剂组合物，以提高杀菌剂防治效果，延缓抗性产生，降低施用量，减少防治成本。
本发明的另一个目的是提供包含两种有效成分A和B杀菌剂组合物在农业领域防治农作物病害方面的应用。
本发明的目的可以通过以下措施达到：
一种具有增效作用的杀菌剂组合物，该组合物包含A和B两种活性组分，其中活性组 分A为具有式(Ⅰ)结构的化合物，活性组分B为四氟醚唑。
Figure PCTCN2017116817-appb-000001
式(Ⅰ)中，R选自H或C 1～C 8烷基。
本发明中的C 1～C 8烷基是指含有1至8个碳原子的直链或支链烷基，它包括C 1烷基(如甲基)、C 2烷基(如乙基)、C 3烷基(如正丙基、异丙基)、C 4烷基(如正丁基、异丁基、叔丁基、仲丁基)、C 5烷基(如正戊基等)、C 6烷基、C 7烷基、C 8烷基。它包括但不限于C 1～C 6烷基、C 1～C 5烷基、C 1～C 4烷基等。
在一种优选方案中，R选自H或C 1～C 4烷基。
在一种更优选的方案中，R选自H、-CH 3或-C 4H 9。
式(Ⅰ)中，当R为H时，A为1,2-苯并异噻唑啉-3-酮(说明书中简称BIT)。
式(Ⅰ)中，当R为CH 3时，A为2-甲基-1,2-苯并异噻唑啉-3-酮(说明书中简称MBIT)。
式(Ⅰ)中，当R为C 4H 9时，A为2-丁基-1,2-苯并异噻唑啉-3-酮，该式中的“丁基”优选正丁基(说明书中简称BBIT)。
发明人通过试验发现，本发明的组合物是用于防治农作物细菌或真菌性病害防治增效明显，更重要的是施用量减少，降低使用成本。含有组分A与组分B的化合物结构类型不同，作用机制各异，两者复配能够扩大杀菌谱，并且可以在一定程度上延缓病原菌抗性的产生和发展速度，且组分A与组分B之间无交互抗性。
本发明杀菌剂组合物中的两组分之间的重量比为20～1:1～20。为使两组分间的药效增效作用更为显著，组分A和组分B的重量两组分之间的重量比可以进一步优化至10～1：1～10。
一种优选的方案中，A和B两组分之间的重量比可以任意地在下述配比的范围内进行调整20:1、19:1、18:1、17:1、16:1、15:1、14:1、13:1、12:1、11:1、10:1、9:1、8:1、7:1、6:1、5:1、4:1、3:1、2:1、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,也可以在以上任意两个配比所组成的范围内进行选择，这些比例可以理解为重量比，也可以包括摩尔比。
本发明的组合物可以由活性成分和农药助剂或辅料制成农药上允许的剂型。进一步的，该组合物由2～80％重量份的活性组分与98～20％重量份的农药助剂组成农药上允许的剂 型。
本发明提供了包含组分A和组分B的杀菌组合物在农业领域防治农作物病害方面的用途，特别是在防治某些作物的真菌或细菌性病害方面的用途。
上述组合物具体可包含农药助剂或辅料，例如载体、溶剂、分散剂、润湿剂、胶粘剂、增稠剂、粘合剂、表面活性剂或肥料等中的一种或几种。在施用的过程中可以混合常用的助剂。
合适的助剂或辅料可以是固体或液体，它们通常是剂型加工过程中常用的物质，例如天然的或再生的矿物质，溶剂、分散剂、润湿剂、胶粘剂、增稠剂、粘合剂。
本发明组合物的施用方法包括将本发明的组合物用于植物生长的地上部分，特别是叶部或叶面。可以选择浸种或涂抹于防治对象表面。施用的频率和施用量取决于病原体的生物学和气候生存条件。可以将植物的生长场所，如稻田，用组合物的液体制剂浸湿，或者将组合物以固体形式施用于土壤中，如以颗粒形式(土壤施用)，组合物可以由土壤经植物根部进入植物体内(内吸作用)。
本发明的组合物可以制备成农药上可接受的各种剂型，包括但不限于乳油、悬浮剂、可湿性粉剂、水分散粒剂、粉剂、粒剂、水剂、水乳剂、微乳剂、毒饵、母液、母粉等，在一种优选方案中，本发明的剂型采用可湿性粉剂、悬浮剂、水分散粒剂、水乳剂或微乳剂。根据这些组合物的性质以及施用组合物所要达到的目的和环境情况，可以选择将组合物以喷雾、弥雾、喷粉、撒播或泼浇等之类的方法施用。
可用已知的方法可以将本发明的组合物制备成各种剂型，可以将有效成分与助剂，如溶剂、固体载体，需要时可以与表面活性剂一起均匀混合、研磨，制备成所需要的剂型。
上述的溶剂可选自芳香烃，优选含8-12个碳原子，如二甲苯混合物或取代的苯，酞酸酯类，如酞酸二丁酯或酞酸二辛酸，脂肪烃类，如环已烷或石蜡，醇和乙二醇和它们的醚和酯，如乙醇，乙二醇，乙二醇单甲基；酮类，如环已酮，强极性的溶剂，如N-甲基-2-吡咯烷酮，二甲基亚砜或二甲基甲酰胺，和植物油或植物油，如大豆油。
上述的固体载体，如用于粉剂和可分散剂的通常是天然矿物填料，例如滑石、高岭土，蒙脱石或活性白土。为了管理组合物的物理性能，也可以加入高分散性硅酸或高分散性吸附聚合物载体，例如粒状吸附载体或非吸附载体，合适的粒状吸附载体是多孔型的，如浮石、皂土或膨润土；合适的非吸附载体如方解石或砂。另外，可以使用大量的无机性质或有机性质的预制成粒状的材料作为载体，特别是白云石。
根据本发明组合物中有效成分的化学性质，合适的表面活性剂为木质素磺酸、萘磺酸、 苯酚磺酸、碱土金属盐或胺盐，烷基芳基磺酸盐，烷基硫酸盐，烷基磺酸盐，脂肪醇硫酸盐，脂肪酸和硫酸化脂肪醇乙二醇醚，还有磺化萘和萘衍生物与甲醛的缩合物，萘或萘磺酸与苯酚和甲醛的缩合物，聚氧乙烯辛基苯基醚，乙氧基化异辛基酚，辛基酚，壬基酚，烷基芳基聚乙二醇醚，三丁基苯聚乙二醇醚，三硬脂基苯基聚乙二醇醚，烷基芳基聚醚醇，乙氧基化蓖麻油，聚氧乙烯烷基醚，氧化乙烯缩合物、乙氧基化聚氧丙烯，月桂酸聚乙二醇醚缩醛，山梨醇酯，木质素亚硫酸盐废液和甲基纤维素。
在制备液体或固体剂型时，可以先将活性组分A溶于某些特定的碱性物质，形成苯并异噻唑啉金属盐，合适的碱性物质包括：碱金属碳酸盐、碱金属氢氧化物(如氢氧化钠、氢氧化钾)、碱金属烷氧基碳酸盐、碱金属醇盐或甲醇镁。
本发明的组合物中两种有效成分表现为增效效果，该组合物的活性比使用单个化合物的活性预期总和，以及单个化合物的单独活性更为显著。增效效果表现为允许施用量减少、更宽的杀真菌控制谱、见效快、更持久的防治效果、通过仅仅一次或少数几次施用更好的控制植物有害真菌、以及加宽了可能的施用间隔时间。这些特性是植物真菌控制实践过程中特别需要的。
本发明的杀菌剂组合物可应用于农业领域防治农作物病害方面，所针对的具体病症包括但不限于小麦病害(如：小麦赤霉病、小麦白粉病、小麦锈病等)、水稻病害(如：水稻纹枯病、水稻稻曲病、水稻稻瘟病、水稻细菌性条斑等)、玉米病害(如：玉米黑穗病、玉米大斑病、玉米小斑病)、黄瓜病害(如：黄瓜霜霉病、黄瓜白粉病、黄瓜炭疽病、黄瓜细菌性角斑病等)、番茄病害(如：番茄炭疽病、番茄灰霉病、番茄细菌性角斑病等)、葡萄病害(如：葡萄霜霉病、葡萄灰霉病、葡萄白粉病)、苹果病害(如苹果轮纹病、苹果炭疽病等)、柑橘病害(柑橘溃疡病、柑橘疮痂并、柑橘炭疽病)、烟草病害(烟草野火病)等。
本发明的杀菌组合物的表现出的其它特点主要表现为：1、本发明的组合物混配具有明显的增效作用；2、由于本组合物的两个单剂化学结构差异很大，作用机理完全不同，不存在交互抗性，可延缓两单剂单独使用所产生的抗性问题；3、本发明的组合物对作物安全、防效好。经试验证明，本发明杀菌剂组合物化学性质稳定，增效显著，对防治对象表现出明显的增效以及互补作用。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明，凡在本发明的精神和原则之内所做的任何修改、等同替换和改进等，均应包含在本发 明的保护范围之内。
以下实施例所有配方中百分比均为重量百分比。本发明组合物各种制剂的加工工艺均为现有技术，根据不同情况可以有所变化。
一、剂型制备实施例
(一)水乳剂的加工及实施例
将活性成分A与B活性成分与溶剂、乳化剂、分散剂、抗冻剂等按比例充分混合，加水后混合均匀即可制得水乳剂。
(1)活性组分A(BIT)与四氟醚唑制备水乳剂
实施例1：16％BIT·四氟醚唑水乳剂(15:1)
BIT 15％，四氟醚唑1％，蓖麻油环氧乙烷加成物6.35％，二甲苯12％，烷基苯磺酸钠5.86％，丙三醇10％，水补足至100％。
实施例2：30％BIT·四氟醚唑水乳剂(1:5)
BIT 5％，四氟醚唑25％，烷基酚聚氧乙烯醚甲醛缩合物8.46％，甲苯16％，十二烷基硫酸钠7.49％，丙三醇12％，水补足至100％。
实施例3：42％BIT·四氟醚唑水乳剂(1:20)
BIT 2％，四氟醚唑40％，聚乙烯醇10.47％，二甲苯15％，甲基戊醇10.21％，乙二醇10％，水补足至100％。
(2)活性组分A(MBIT)与四氟醚唑制备水乳剂
实施例4：16％MBIT·四氟醚唑水乳剂
MBIT 15％，四氟醚唑1％，其余组分按照实施例1的方法制备。
实施例5：30％MBIT·四氟醚唑水乳剂
MBIT 5％，四氟醚唑25％，其余组分按照实施例2的方法制备。
实施例6：42％MBIT·四氟醚唑水乳剂
MBIT 2％，四氟醚唑40％，其余组分按照实施例3的方法制备。
(3)活性组分A(BBIT)与四氟醚唑制备水乳剂
实施例7：16％BBIT·四氟醚唑水乳剂
BBIT 15％，四氟醚唑1％，其余组分按照实施例1的方法制备。
实施例8：30％BBIT·四氟醚唑水乳剂
BBIT 5％，四氟醚唑25％，其余组分按照实施例2的方法制备。
实施例9：42％BBIT·四氟醚唑水乳剂
BBIT 2％，四氟醚唑40％，其余组分按照实施例3的方法制备。
(二)悬浮剂的加工及实施例
将活性成分活性分组A与活性组分B，与分散剂、润湿剂、增稠剂和水等各组分按配方的比例混合均匀，经砂磨和/或高速剪切后，得到半成品，分析后补加水混合均匀过滤即得成品。
(1)活性组分A(BIT)与四氟醚唑制备悬浮剂
实施例10：10.5％BIT·四氟醚唑悬浮剂(20:1)
BIT 10％，四氟醚唑0.5％，皂角粉4.58％,硅酸镁铝1.46％，乙二醇6％，硅油0.01％,水补足至100％。
实施例11：3％BIT·四氟醚唑悬浮剂(5:1)
BIT 2.5％，四氟醚唑0.5％，木质素磺酸钠盐2.36％，黄原胶1.65％，乙二醇5％，聚二甲基硅氧烷0.01％，水补足至100％。
实施例12：22％BIT·四氟醚唑悬浮剂(1:10)
BIT 2％，四氟醚唑20％，脂肪醇聚氧乙烯醚8.45％，黄原胶5.33％，丙三醇12％，硅油0.02％，水补足至100％。
(2)活性组分A(MBIT)与四氟醚唑制备悬浮剂
实施例13：10.5％MBIT·四氟醚唑悬浮剂
MBIT 10％，四氟醚唑0.5％，其余组分按照实施例10的方法制备。
实施例14：3％MBIT·四氟醚唑悬浮剂
MBIT 2.5％，四氟醚唑0.5％，其余组分按照实施例11的方法制备。
实施例15：22％MBIT·四氟醚唑悬浮剂
MBIT 2％，四氟醚唑20％，其余组分按照实施例12的方法制备。
(3)活性组分A(BBIT)与四氟醚唑制备悬浮剂
实施例16：10.5％BBIT·四氟醚唑悬浮剂
BBIT 10％，四氟醚唑0.5％，其余组分按照实施例10的方法制备。
实施例17：3％BBIT·四氟醚唑悬浮剂
BBIT 2.5％，四氟醚唑0.5％，其余组分按照实施例11的方法制备。
实施例18：22％BBIT·四氟醚唑悬浮剂
BBIT 2％，四氟醚唑20％，其余组分按照实施例12的方法制备。
(三)可湿性粉剂的加工及实施例
将活性成分A与B活性成分与各种助剂及填料等按比例充分混合，经超细粉碎机粉碎后制得可湿性粉剂。
(1)活性组分A(BIT)与四氟醚唑制备可湿性粉剂
实施例19:55％BIT·四氟醚唑可湿性粉剂(10:1)
BIT 50％，四氟醚唑5％，萘磺酸盐1.73％，十二烷基硫酸钠1.53％，膨润土3.50％，高岭土补足至100％。
实施例20:15％BIT·四氟醚唑可湿性粉剂(1:1)
BIT 7.5％，四氟醚唑7.5％，木质素磺酸钠盐6.64％，拉开粉BX 4.05％，膨润土4.73％，白炭黑补足至100％。
实施例21:24％BIT·四氟醚唑可湿性粉剂(1:15)
BIT 1.5％，四氟醚唑22.5％，皂角粉9.84％，烷基酚聚氧乙烯醚11.29％，硫酸铵6.08％，高岭土补足至100％。
(2)活性组分A(MBIT)与四氟醚唑制备可湿性粉剂
实施例22：55％MBIT·四氟醚唑可湿性粉剂
MBIT 50％，四氟醚唑5％，其余组分按照实施例19的方法制备。
实施例23：15％MBIT·四氟醚唑可湿性粉剂
MBIT 7.5％，四氟醚唑7.5％，其余组分按照实施例20的方法制备。
实施例24：24％MBIT·四氟醚唑可湿性粉剂
MBIT 1.5％，四氟醚唑22.5％，其余组分按照实施例21的方法制备。
(3)活性组分A(BBIT)与四氟醚唑制备可湿性粉剂
实施例25：55％BBIT·四氟醚唑可湿性粉剂
BBIT 50％，四氟醚唑5％，其余组分按照实施例19的方法制备。
实施例26：15％BBIT·四氟醚唑可湿性粉剂
BBIT 7.5％，四氟醚唑7.5％，其余组分按照实施例20的方法制备。
实施例27：24％BBIT·四氟醚唑可湿性粉剂
BBIT 1.5％，四氟醚唑22.5％，其余组分按照实施例21的方法制备。
二、药效验证试验
(一)生物测定实施例
按照试验分级标准调查整株叶片的发病情况，计算病情指数和防治效果。
将防治效果换算成几率值(y)，药液浓度(μg/ml)转换成对数值(x)，以最小二乘法 计算毒力方程和抑制中浓度EC50，依孙云沛法计算药剂的毒力指数及共毒系数(CTC)。
实测毒力指数(ATI)＝(标准药剂EC50/供试药剂EC50)*100
理论毒力指数(TTI)＝A药剂毒力指数*混剂中A的百分含量+B药剂毒力指数*混剂中B的百分含量
共毒系数(CTC)＝[混剂实测毒力指数(ATI)/混剂理论毒力指数(TTI)]*100
CTC≤80,组合物表现为拮抗作用,80＜CTC＜120，组合物表现为相加作用,CTC≥120，组合物表现为增效作用。
1、BIT与四氟醚唑复配对猕猴桃白粉病毒力测定试验
表1.BIT与四氟醚唑复配对猕猴桃白粉病毒力测定结果分析
Figure PCTCN2017116817-appb-000002
结果(表1)表明，BIT与四氟醚唑复配对猕猴桃白粉病的防治效果显著提高，尤其在其配比在20～1：1～20的毒力系数均在132.85以上。说明两者复配对猕猴桃白粉病防治有显著的增效作用。
2、MBIT与四氟醚唑复配对黄瓜灰霉病毒力测定试验
表2.MBIT与四氟醚唑复配对黄瓜灰霉病毒力测定结果分析
Figure PCTCN2017116817-appb-000003
Figure PCTCN2017116817-appb-000004
结果（表2）表明，BIT与四氟醚唑复配对黄瓜灰霉病的防治效果显著提高，尤其在其配比在20～1：1～20的毒力系数均在162.21以上。说明两者复配对黄瓜灰霉病防治有显著的增效作用。
3、BBIT与四氟醚唑对番茄菌核病毒力测定试验
表3.BBIT与四氟醚唑复配对番茄菌核病毒力测定结果分析
Figure PCTCN2017116817-appb-000005
结果（表3）表明，BBIT与四氟醚唑复配对番茄菌核病的防治效果显著提高，说明二者复配对番茄菌核病防治有显著的增效作用。
（二）田间药效验证试验
试验方法：在发病初期，立即进行第一次喷雾，7天后进行第二次施药，每个处理4个小区，每个小区20平米。于药前和第二次药后11天调查统计发病情况，每个小区5点随机取样，每点调查5株作物，调查整株上每叶片的病斑面积占叶片面积的百分率并分级，计算病情指数和防治效果。
Figure PCTCN2017116817-appb-000006
Figure PCTCN2017116817-appb-000007
预期防效(％)＝X+Y-XY/100(其中，X，Y为单剂防效)
分级标准：
0级：无病斑；
1级：叶片病斑少于5个，长度小于1cm；
3级：叶片病斑6-10个，部分病斑长度大于1cm；
5级：叶片病斑11-25个，部分病斑连成片，病斑面积占叶面积的10-25％；
7级：叶片病斑26个以上，病斑连成片，病斑面积占叶面积的26-50％；
9级：病斑连成片，病斑面积占叶面积的50％以上或全叶枯死。
1、BIT与四氟醚唑复配田间药效实验
表4 BIT与四氟醚唑混配对草莓白粉病防治效果
Figure PCTCN2017116817-appb-000009
测定结果（表4）表明，BIT与四氟醚唑的复配对草莓白粉病防效明显提高，说明二者复配对草莓白粉病有显著的增效作用。
2、MBIT与四氟醚唑复配田间药效实验
表5 MBIT与四氟醚唑混配对葡萄白腐病防治效果
Figure PCTCN2017116817-appb-000010
Figure PCTCN2017116817-appb-000011
测定结果（表5）表明，MBIT与四氟醚唑混配对葡萄白腐病的防效明显提高，说明二者复配对葡萄白腐病有显著的增效作用。
3、BBIT与四氟醚唑复配田间药效实验表6 BBIT与四氟醚唑混配对烟草白粉病防治效果
Figure PCTCN2017116817-appb-000012
Figure PCTCN2017116817-appb-000013
测定结果(表6)表明，BBIT与四氟醚唑混配对烟草白粉病的防效明显提高，说明二者复配对烟草白粉病有显著的增效作用。

Claims (8)

  1. 一种杀菌剂组合物，其特征在于所述的组合物包含A和B两种活性组分，其中活性组分A为具有式(Ⅰ)结构的化合物，活性组分B为四氟醚唑，两组分之间的重量比为20～1:1～20
    Figure PCTCN2017116817-appb-100001
    式(Ⅰ)中，R选自H或C 1～C 8烷基。
  2. 根据权利要求1所述的杀菌剂组合物，其特征在于式(Ⅰ)中，R选自H或C 1～C 4烷基。
  3. 根据权利要求2所述的杀菌剂组合物，其特征在于式(Ⅰ)中，R优先选自H、-CH 3或-C 4H 9，对应的活性组分A分别为1,2-苯并异噻唑啉-3-酮、2-甲基-1,2-苯并异噻唑啉-3-酮或2-丁基-1,2-苯并异噻唑啉-3-酮。
  4. 根据权利要求1所述的杀菌剂组合物，其特征在于活性组分A和活性组分B的重量比为10～1:1～10。
  5. 根据权利要求1～4中任意一项所述的杀菌剂组合物，其特征在于该组合物由活性成分和农药助剂或辅料制成农药上允许的剂型。
  6. 根据权利要求5所述的杀菌剂组合物，其特征在于所述的剂型为可湿性粉剂、悬浮剂或水乳剂。
  7. 根据权利要求5或6所述的杀菌剂组合物，其特征在于所述农药助剂或辅料选自载体、溶剂、分散剂、润湿剂、胶粘剂、增稠剂、粘合剂、表面活性剂或肥料中的一种或几种。
  8. 权利要求1～7中任意一项所述的杀菌剂组合物在农业领域防治农作物病害方面的用途。
PCT/CN2017/116817 2017-01-06 2017-12-18 一种包含苯并异噻唑啉酮类和四氟醚唑的杀菌剂组合物 Ceased WO2018126878A1 (zh)

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