阅读说明：本技术 一种防治澳洲坚果灰霉病的药剂组合物 (Medicament composition for preventing and treating macadimia nut gray mold ) 是由 蔡元保 杨祥燕 李穆 李季东 黄强 黄思婕 郑文武 曾黎明 林玉虹 黄锦媛 巫辅 于 2019-11-18 设计创作，主要内容包括：本发明属于农药技术领域,具体涉及一种防治澳洲坚果灰霉病的药剂组合物。一种防治澳洲坚果灰霉病的药剂组合物,其有效成分由氟唑菌酰羟胺与肟醚菌胺、唑菌酯或双炔酰菌胺二元复配而成。本发明防治澳洲坚果灰霉病的药剂组合物由不同作用机制的有效成分组成,增效作用明显,对澳洲坚果灰霉病有很好的防治效果,可以减少施药剂量和施药次数,降低防治成本,减轻农药对环境的压力,降低农药残留。(The invention belongs to the technical field of pesticides, and particularly relates to a pharmaceutical composition for preventing and treating macadimia nut gray mold. The effective components of the pharmaceutical composition for preventing and treating macadimia nut gray mold are compounded by epoxiconazole hydroxylamine and orysastrobin, pyraoxystrobin or mandipropamid. The pharmaceutical composition for preventing and treating the gray mold of the macadimia nuts, disclosed by the invention, is composed of active ingredients with different action mechanisms, has an obvious synergistic effect, has a good effect of preventing and treating the gray mold of the macadimia nuts, and can reduce the pesticide application dose and the pesticide application frequency, reduce the prevention and treatment cost, reduce the pressure of pesticides on the environment and reduce pesticide residues.)

1. The medicament composition for preventing and treating macadimia nut gray mold is characterized in that the effective components of the medicament composition are prepared by binary compounding of epoxiconazole hydroxylamine and orysastrobin, pyraoxystrobin or mandipropamid.

2. The pharmaceutical composition for controlling macadimia nut gray mold as claimed in claim 1, wherein the mass ratio of the epoxiconazole hydroxylamine to the orysastrobin is 1-40: 40-1.

3. The pharmaceutical composition for controlling macadimia nut gray mold as claimed in claim 1, wherein the mass ratio of the epoxiconazole hydroxylamine to the pyraoxystrobin is 1-15: 60-1.

4. The pharmaceutical composition for controlling macadimia nut gray mold as claimed in claim 1, wherein the mass ratio of the epoxiconazole hydroxylamine to the mandipropamid is 1-25: 100-1.

Technical Field

The invention belongs to the technical field of research and development of new pesticides, and particularly relates to a medicament composition for preventing and treating macadimia nut gray mold.

Background

Macadamia nut, also known as macadamia nut, is a macadamia plant originally produced in Australia, not only has higher economic value, but also has good nutritional value and medicinal value, and is vegetatively reputed as the king of dried fruit. The macadimia nuts have more diseases and insect pests, more than 30 diseases and more than 300 insect pests, and the more serious diseases include damping off, root rot, flower blight, anthracnose, ulceration and gray mold. Wherein the gray mold damages the top parts of newly-extracted young leaves and inflorescences of the macadamia nut tree body, fine-spot water-immersed spots appear after the newly-extracted leaves are damaged, the whole diseased leaves become black along with the development of the disease course, and a layer of gray green powder is grown on the surfaces of the newly-extracted leaves and branches to cause the newly-extracted leaves and the branches to die; after the inflorescence is damaged, the top of the inflorescence cannot grow normally and is dried up, and the healthy growth and yield of the macadimia nuts are seriously influenced. At present, the pesticide preparation for preventing and treating the gray mold of the macadimia nuts is less, the macadimia nut gray mold has serious resistance to common pesticides, and the application dose and the application frequency of the pesticides are generally increased to achieve better prevention and treatment effects when fruit growers prevent and treat the diseases, so that the prevention and treatment cost is increased, and the pesticide residue of the macadimia nuts can be increased.

The fluxapyroxad is a latest generation succinate dehydrogenase inhibitor bactericide discovered and developed by the Prov. Chengdu, and is marketed in 2017, and the fluxapyroxad inhibits the respiration of pathogenic fungi by inhibiting succinate dehydrogenase in a tricarboxylic acid cycle during the mitochondrial respiration of the pathogenic fungi, so that the energy metabolism is blocked, the growth of the pathogenic fungi is inhibited, and the pathogenic fungi die. Has the advantages of high efficiency, broad spectrum, low toxicity and the like, and can prevent and treat various diseases including gray mold, brown spot, leaf spot, sclerotinia rot and gibberellic disease. Like other bactericides, the fluxapyroxad has a single action site, and pathogenic bacteria are easy to generate drug resistance if a large amount of single dosage is applied for a long time. The fluxapyroxad is compounded with other medicaments with different action mechanisms and no cross resistance, and has important significance for protecting the medicaments and delaying the drug resistance of pathogenic bacteria.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a medicament composition for preventing and treating macadimia nut gray mold, so as to overcome the defects that the cost for preventing and treating the macadimia nut gray mold is high, pesticide residues of macadimia nuts are high due to large-dose application of pesticides, and pathogenic bacteria are easy to generate drug resistance due to long-term large-dose single-dose application of epoxiconazole hydroxylamine.

In order to achieve the purpose, the invention provides a medicament composition for preventing and treating macadimia nut gray mold, which is prepared by compounding the active ingredients of fluxapyroxad with orysastrobin, pyraoxystrobin or mandipropamid.

Preferably, the mass ratio of the fluxapyroxad to the orysastrobin is 1-40: 40-1.

Preferably, the mass ratio of the fluxapyroxad to the pyraoxystrobin is 1-15: 60-1.

Preferably, the mass ratio of the fluxapyroxad to the mandipropamid is 1-25: 100-1.

Compared with the prior art, the invention has the following beneficial effects:

(1) the pharmaceutical composition for preventing and treating the gray mold of the macadimia nuts consists of the active ingredients with different action mechanisms, can effectively slow down the drug resistance of the gray mold of the macadimia nuts, and reduces the drug resistance risk caused by the single use of the epoxiconazole hydroxylamine.

(2) The pesticide composition for preventing and treating the gray mold of the macadimia nuts has obvious synergy when binary compounding is carried out, has good prevention and treatment effect on the gray mold of the macadimia nuts, can reduce the pesticide application dose and the pesticide application frequency, reduces the prevention and treatment cost, lightens the pressure of pesticides on the environment, and reduces pesticide residues.

Detailed Description

The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments.