Application of fludioxonil and compound thereof in preventing and treating diseases of sweet potato during storage

A fungicide composition, the technology of fludioxonil, applied in the field of pesticides, can solve the problems of increased drug resistance of pathogenic bacteria, low drug efficacy, poor control effect, etc., to achieve reduced usage and frequency of use, high drug efficacy, and effective control methods simple effect

Active Publication Date: 2016-05-11
INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems of low drug efficacy, enhanced drug resistance of pathogenic bacteria, and poor control effect in the current application of carbendazim and thiophanate-methyl to prevent and treat sweet potato diseases during storage, the purpose of the present invention is to provide fludioxonil for preventing and controlling sweet potato diseases during storage. Use on

Method used

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  • Application of fludioxonil and compound thereof in preventing and treating diseases of sweet potato during storage
  • Application of fludioxonil and compound thereof in preventing and treating diseases of sweet potato during storage
  • Application of fludioxonil and compound thereof in preventing and treating diseases of sweet potato during storage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1 The synergistic test of fludioxonil and prochloraz fungicide composition on sweet potato rot canker bacteria and sweet potato black spot bacteria

[0045] (1), the original drug for testing: 97% fludioxonil (Shaanxi Meibang Pesticide Co., Ltd., the same below), 98% prochloraz (Shenyang Kechuang Chemical Co., Ltd., the same below), 92% difenoconazole (Swiss Syngenta Crop Protection Co., Ltd., the same below).

[0046] (2), pathogenic bacteria: sweet potato rot canker pathogenic bacteria: Fusarium solani X14011 (F.solani), isolated from diseased potatoes in Xiong County, Hebei Province; ), isolated from diseased potato stored in Yi County, Hebei Province.

[0047] (3), test treatment: see Table 1 and Table 2 for the preparation ratio of fludioxonil and prochloraz.

[0048] (4), test method:

[0049] The mycelial growth rate method was used. Under sterile conditions, dissolve the original drug of the test agent with acetone, then dilute it with 0.1% Tween 80 ...

Embodiment 2

[0059] Example 2 The synergistic test of fludioxonil and difenoconazole fungicide composition on sweet potato rot canker fungus and sweet potato black spot fungus

[0060] (1), former drug for testing: with embodiment 1

[0061] (2) Pathogens: sweet potato rot canker pathogens: Fusarium solani X14011 strain (F.solani); sweet potato black spot pathogens: C. elongata YX1410 strains (C.fimbriata).

[0062] (3), test treatment: see Table 3 and Table 4 for the preparation ratio of fludioxonil and difenoconazole.

[0063] (4), test method:

[0064] The mycelial growth rate method was used. Under sterile conditions, dissolve the original drug of the test agent with acetone, then dilute it with 0.1% Tween 80 to form a series of medicinal solutions, add it to a petri dish with a diameter of 7 cm, and make a PDA plate containing the drug. Adding medicament and only adding solvent was used as blank control. Take the bacterium cakes with a diameter of 0.5 cm at the edge of the colony ...

Embodiment 3

[0070] Embodiment 3 The preparation of the suspension concentrate of the insecticide composition containing fludioxonil of the present invention

[0071] (1) former drug for testing: with embodiment 1.

[0072] (2) Preparation method:

[0073] (1) dispersant nonylphenol polyoxyethylene ether 25g and sodium dodecylbenzenesulfonate 25g, wetting agent naphthalenesulfonic acid formaldehyde condensate sodium salt 10g, thickener xanthan gum 6g, antifreeze agent B 50g of diol, 5g of antifoaming agent silicone oil and a small amount of solvent methyl oleate were added to the reaction kettle and mixed evenly;

[0074] (2) Add the former medicine of fludioxonil and prochloraz or difenoconazole respectively to the mixture obtained in step (1) again (the composition of the active ingredient and its ratio are shown in Table 5), add the remainder of methyl oleate, To a total weight of 1000g, ball milling and passing through a 325 mesh sieve, the suspension concentrate of the fungicide com...

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Abstract

The invention discloses usage of fludioxonil and antiseptic compound thereof in preventing and treating diseases of sweet potato during storage, wherein the diseases includes sweet-potato rot and ulcer disease, sweet-potato soft-rot disease, sweet-potato melasma disease, sweet-potato tar-spot disease and the like. The antiseptic compound comprises the following active ingredients: fludioxonil and active component B, wherein mass ratio of the fludioxonil to the active component B is (1-10): (10-1); and the active component B is prochloraz or difenoconazole. The fludioxonil and the antiseptic compound containing the fludioxonil can be prepared into pesticides of regular dosage forms. The fludioxonil and the compound thereof disclosed by the invention are high in drug efficacies to diseases of sweet potato during storage and good in disease preventing and treating effects; moreover, the fludioxonil and the compound thereof have wide bactericidal spectrums, so that the fludioxonil and the compound thereof are good in preventing and treating effects to the sweet-potato rot and ulcer disease, sweet-potato soft-rot disease, sweet-potato melasma disease and sweet-potato tar-spot disease. Furthermore, the fludioxonil, the prochloraz or the difenoconazole have the characteristics of high efficacy and low toxicity, so that the compound has good safety. The fludioxonil and the antiseptic compound thereof have the advantages of low cost, simple method and so on.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to the use of fludioxonil for preventing and treating sweet potato diseases during storage; and the use of a fungicide composition containing fludioxonil for preventing and controlling sweet potato diseases during storage. Background technique [0002] Sweet potato storage period diseases include sweet potato rot canker (pathogenic bacteria are: Fusarium solani (or claiming Fusarium solani rot), Fusarium solani) (R.-Y.Wang et al. PlantDisease.2014,98 (1): 160), Sweet potato black spot (pathogen: Ceratocystis fimbriata), sweet potato soft rot (pathogen: rhizopus stolonifer) (Xie Yiping et al. Jiangxi Agricultural Journal, 2009,21(8):121-122) , sweet potato black mole disease (pathogenic bacteria are: Alternaria diosminum, Monilochaetes infuscans), etc., the incidence of these diseases is about 5% in the initial stage of storage, and it is serious in the potato cellar in the late...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154A01N43/36A01N47/38A01N43/653A01P3/00
CPCA01N43/36A01N43/653A01N47/38A23B7/154A01N2300/00
Inventor 王容燕高波李秀花马娟陈书龙
Owner INST OF PLANT PROTECTION HEBEI ACAD OF AGRI & FORESTRY SCI
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