Bactericide composition containing tebuconazole and fludioxonil and used for controlling brown rot of hylocereus undatus as well as application of bactericide composition

A fungicide composition and brown rot technology, applied in the direction of fungicides, chemicals for biological control, applications, etc., can solve problems such as unfavorable development of dragon fruit planting, increased pesticide consumption, and increased application concentration , to achieve the effects of reducing the risk of pathogenic bacteria resistance, long-lasting effect, and reducing the dosage of pesticides

Inactive Publication Date: 2020-01-14
PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In production, farmers often mix multiple pesticides and blindly increase the concentration of pesticides, which increases the amount of pesticides and aggravates environmental pollution, which is not conducive to the development of dragon fruit planting.

Method used

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  • Bactericide composition containing tebuconazole and fludioxonil and used for controlling brown rot of hylocereus undatus as well as application of bactericide composition
  • Bactericide composition containing tebuconazole and fludioxonil and used for controlling brown rot of hylocereus undatus as well as application of bactericide composition
  • Bactericide composition containing tebuconazole and fludioxonil and used for controlling brown rot of hylocereus undatus as well as application of bactericide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 Indoor Toxicity Determination of Tebuconazole and Fludioxonil Compounding to Dragon Fruit Brown Rot Bacteria

[0044] 1. Experimental materials

[0045] 95% Tebuconazole original drug, commercially available; 99% Fludioxonil original drug, commercially available.

[0046] Dragon fruit brown rot fungus (Neoscytalidium dimidiatum), isolated from Huilong Village, Feng'an Town, Zijin County, Heyuan City, Guangdong Province, is preserved in the Institute of Plant Protection, Guangdong Academy of Agricultural Sciences.

[0047] 2. Experimental method

[0048] The toxicity of the test agents to the test strains was determined by the mycelium growth rate method. The two single doses of the test drug were mixed according to the mass ratio of 10:0 (single dose control), 9:1, 8:2, 7:3, 6:4, 5:5, 4:6, 3:7, 2:8 , 1:9, and 0:10 (single-dose control) ratios were mixed, respectively dissolved in acetone to prepare 1.00×10 4 mg / L concentration of the mother liquor, and the...

Embodiment 2

[0063] Example 2 45% tebuconazole·fludioxonil suspension concentrate (tebuconazole: fludioxonil=8:2)

[0064] Made according to the conventional process, the following ingredients are prepared according to the therapeutic fraction: tebuconazole 36%, fludioxonil 9%, polycarboxylate (dispersant) 5%, isooctyl alcohol (defoamer) 0.3%, silicon Magnesium aluminum acid (suspending agent) 1.2%, xanthan gum (thickener) 0.14%, ethylene glycol (antifreeze) 1%, block polyether (wetting agent) 2%, Kathon (preservative) 0.5%, add deionized water to 100%.

Embodiment 3

[0065] Example 3 30% tebuconazole·fludioxonil water emulsion (tebuconazole:fludioxonil=9:1)

[0066] Made according to the conventional process, the following ingredients are prepared according to the therapeutic fraction: tebuconazole 27%, fludioxonil 3%, agricultural milk BY-120 5%, polycarboxylate (dispersant) 4%, isooctyl alcohol ( Antifoaming agent) 1%, xanthan gum (thickener) 1%, ethylene glycol (antifreezing agent) 1%, block polyether (wetting agent) 5%, deionized water added to 100%.

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Abstract

The invention discloses a bactericide composition containing tebuconazole and fludioxonil and used for controlling brown rot of hylocereus undatus as well as application of the bactericide composition. The bactericide composition for resisting the brown rot of hylocereus undatus contains the tebuconazole and fludioxonil in the mass ratio being (1:9)-(9:1). The two agents including tebuconazole andfludioxonil are compounded and can effectively relieve drug resistance of germs. Indoor toxicity determination and field efficacy test research show that the combination application of the tebuconazole and fludioxonil has good control effects on the brown rot of hylocereus undatus, and the bactericide composition is safe to crops, has a synergistic effect, can reduce pesticide dose and delay production of drug resistance.

Description

technical field [0001] The invention relates to the technical field of plant protection, in particular to a fungicide composition containing tebuconazole and fludioxonil for preventing and treating dragon fruit brown rot and application thereof. Background technique [0002] Dragon fruit (Hylocereus undatus) is a perennial climbing succulent plant belonging to the cactus family. It is native to Central America such as Brazil and Mexico. In the early 1990s, after the successful introduction and trial planting in Taiwan, my country, it was introduced to the mainland. At present, dragon fruit has been planted in large areas in Guangxi, Guangdong, Hainan, Fujian, Guizhou, Yunnan and other places in my country. Dragon fruit has become one of the important economic crops for farmers to get rid of poverty and become rich. [0003] Dragon fruit brown rot, also known as canker, caused by Neoscytalidium dimidiatum infection, is a devastating fungal disease that seriously threatens th...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N43/36A01P3/00
CPCA01N43/36A01N43/653
Inventor 蓝国兵何自福佘小漫于琳汤亚飞李正刚邓铭光
Owner PLANT PROTECTION RES INST OF GUANGDONG ACADEMY OF AGRI SCI
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