阅读说明：本技术 含有精苯霜灵和霜霉威的杀菌组合物 (Sterilization composition containing benalaxyl-M and propamocarb ) 是由 黄宇龙 于 2019-10-24 设计创作，主要内容包括：本发明公开了一种含有精苯霜灵和霜霉威的杀菌组合物及其应用,本发明杀菌组合物以精苯霜灵和霜霉威为有效成分,精苯霜灵和霜霉威在组合物中的重量比为1：50～50：1,精苯霜灵和霜霉威重量总和在组合物中的重量百分比为10％-80％；本发明杀菌组合物应用于防治抗性植物真菌病害,尤其用于防治白粉病、晚疫病；本发明杀菌组合物具有协同增效作用,防治效果优秀,持效期长,对农作物安全,可减少农药使用量,降低使用成本,减轻对环境的污染,延缓病原菌抗药性的产生,增加农药使用寿命。(The invention discloses a bactericidal composition containing benalaxyl-M and propamocarb and application thereof, wherein the bactericidal composition takes benalaxyl-M and propamocarb as effective components, and the weight ratio of the benalaxyl-M to the propamocarb in the composition is 1: 50-50: 1, the total weight of benalaxyl-M and propamocarb accounts for 10 to 80 percent of the composition; the bactericidal composition is applied to controlling resistant plant fungal diseases, and is particularly used for controlling powdery mildew and late blight; the bactericidal composition has a synergistic effect, is excellent in prevention and treatment effect, long in lasting period, safe to crops, and capable of reducing the using amount of pesticides, reducing the use cost, reducing the pollution to the environment, delaying the generation of the drug resistance of pathogenic bacteria and prolonging the service life of the pesticides.)

1. A bactericidal composition containing benalaxyl-M and propamocarb is characterized in that: the effective components are benalaxyl-M and propamocarb, and the weight ratio of the benalaxyl-M to the propamocarb in the composition is 1-50: 1-50, wherein the total weight of benalaxyl-M and propamocarb accounts for 10-80% of the composition.

2. The bactericidal composition containing benalaxyl-m and propamocarb according to claim 1, which is characterized in that: the weight ratio of benalaxyl-M and propamocarb in the composition is 1-20: 1 to 20.

3. The bactericidal composition containing benalaxyl-m and propamocarb according to claim 1, which is characterized in that: the weight ratio of benalaxyl-M and propamocarb in the composition is 1-10: 1 to 10.

4. The bactericidal composition containing benalaxyl-m and propamocarb according to claim 1, which is characterized in that: the practical application formulation of the preparation is water dispersible granules.

5. The bactericidal composition containing benalaxyl-m and propamocarb according to claim 1, which is characterized in that: its practical application form is wettable powder.

6. The bactericidal composition containing benalaxyl-m and propamocarb according to claim 1, which is characterized in that: the practical application form of the suspending agent is suspending agent.

7. The bactericidal composition containing benalaxyl-m and propamocarb according to claim 1, which is characterized in that: its practical application form is suspoemulsion.

8. The use of the bactericidal composition containing benalaxyl-m and propamocarb according to claim 1 for controlling resistant plant fungal diseases.

9. The use of the bactericidal composition containing benalaxyl-m and propamocarb according to claim 8 for controlling resistant plant fungal diseases, characterized in that: the resistant plant fungal diseases are powdery mildew and late blight.

Technical Field

The invention relates to a sterilization composition and application thereof, in particular to a sterilization composition containing benalaxyl-M and propamocarb and application thereof.

Background

benalaxyl-M has high selectivity and high activity on oomycete fungi, particularly (of the family of Peronosporaceae) fungi such as phytophthora, plasmopara, pseudoperonospora, phyllomyces, peronospora, pythium and the like, and can be used for preventing and treating late blight of solanaceous crops such as potatoes, tomatoes and the like, downy mildew such as hops, grapes, lettuce, onions, soybeans, tobaccos and the like, strawberry blight caused by phytophthora blight, ornamental plant blight, lawn root rot caused by pythium and the like. Besides being used as a foliar treatment medicament, the benalaxyl-m can be compounded with other fungicides to be developed into a seed dressing agent.

Propamocarb is a low-toxicity fungicide with local systemic action, belongs to carbamates, and has special effect on oomycete fungi.

At present, the prevention and control difficulty of plant germs is increasingly greater, on one hand, with the change of a planting structure, the planting area of economic crops such as melons, fruits, vegetables and the like is gradually enlarged, the occurrence degree and the occurrence quantity of diseases are improved, and the prevention and control difficulty is increased; on the other hand, the resistance of pathogenic bacteria is increased year by year under the continuous medicament selection pressure, the control effect of a single medicament is greatly reduced, and the control of plant diseases faces important challenges.

Through screening of compound formulas of different pesticide varieties, excellent formulas are selected, so that the actual control effect on diseases, insects and weeds can be effectively improved, the dosage is reduced, the cost is reduced, the generation of drug resistance of the diseases, the insects and the weeds is delayed, and the method is an important means for comprehensively treating the diseases, the insects and the weeds in agriculture. The inventor of the invention has conducted intensive research on screening of compound formulas of benalaxyl-M and propamocarb, finds that benalaxyl-M and propamocarb show good synergistic interaction effect on fungal pathogens such as powdery mildew, late blight and the like within a certain compound proportion range, and further researches have completed the invention.

At present, no report related to the compounding of benalaxyl-M and propamocarb is found.

Disclosure of Invention

The invention aims to provide a bactericidal composition containing benalaxyl-M and propamocarb, which can effectively prevent and treat fungal diseases such as powdery mildew, late blight and the like.

The technical scheme of the invention is as follows: a composition containing propamocarb and propamocarb takes the propamocarb and the propamocarb as effective components, and the weight ratio of the propamocarb to the propamocarb in the composition is 1: 50-50: 1, the total weight of benalaxyl-M and propamocarb accounts for 10 to 80 percent of the weight of the composition, and the balance is an agriculturally acceptable and allowable pesticide auxiliary agent.

Further, the preferred weight ratio of benalaxyl-m and propamocarb in the composition is 1: 20-20: 1; in some most preferred embodiments, the preferred weight ratio of benalaxyl-m and propamocarb in the composition is 1: 10-10: 1.

furthermore, the total weight of the benalaxyl-m and the propamocarb accounts for 10 to 50 percent of the preferred weight percentage of the sterilization composition.

The pesticide adjuvant comprises one or more of wetting agent, dispersing agent, emulsifier, cosurfactant, thickener, solvent, cosolvent, antifreezing agent, disintegrant, effervescent adjuvant, preservative, stabilizer, film-forming agent, encapsulating agent, pH regulator, defoaming agent, colorant, filler, water and the like, is various ingredients which are commonly used in preparation or are agriculturally allowed to be used, is not particularly limited, and the specific ingredients and the using amount are determined by experiments according to needs.

The bactericidal composition can be prepared into any dosage form suitable for agricultural production, and the better dosage forms comprise water dispersible granules, wettable powder, suspending agents, suspoemulsions and the like; the production of dosage forms for various applications is well known in the art and will not be described in detail herein.

The composition can be particularly well used for controlling plant diseases in various useful crops, including but not limited to conventional breeding crops, transgenic crops, asexual propagation crops, wild plants and the like, and is particularly suitable for controlling plant diseases of cucumbers, tomatoes, grapes, lettuce, onions, soybeans, wheat and the like.

Compared with the single use of propamocarb and benalaxyl-M, the bactericidal composition has obvious synergistic effect, high biological activity and obvious protection effect, the total dosage in unit area is reduced, the application cost is greatly reduced, the generation of drug resistance of pathogens is delayed to a greater extent, the risk of the pathogens generating resistance to a single bactericide is reduced, the service life of each component in the composition is prolonged, and the purposes of economy and high efficiency are achieved.

Detailed description of the preferred embodiments

The technical scheme of the present invention is further illustrated by the following examples, wherein the two effective ingredients are processed into any one of the formulations acceptable in pesticides, and the preparation methods of the formulations in the examples are conventional methods, but the formulations that the two effective ingredients can be processed are not limited to the following.