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Method for preventing and controlling wheat bakanae disease by JS399-19 and tebuconazole

A technology of cyprostrobin and tebuconazole, which is applied to botany equipment and methods, chemicals for biological control, animal repellants, etc., can solve the problems of effect decline and loss, and achieve simple and Less consumption per unit area and good comprehensive benefits

Inactive Publication Date: 2007-01-24
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, with the transportation and natural spread of seeds, the distribution of drug-resistant pathogenic bacteria continues to expand, which has led to a significant decline in the effectiveness of benzimidazole fungicides in the control of wheat head blight in some major wheat producing areas in China, and even in some The region has completely lost its effectiveness in controlling the head blight epidemic hazard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] Example 1. In the Jiangpu farm test, the drug-resistant gibberellosis and the sensitive bacteria and their 1:1 mixed spray were inoculated before the drug use, and after 24 hours, the single doses of tebuconazole, flumecilidine, and imazalil were used respectively. According to the dose of 10-300 grams of active ingredients per hectare and 750 kg of water, spray once at the flowering stage of wheat, or spray for the second time at intervals of 15 days, the effect of preventing and treating wheat head blight is as follows: 10 g / ha The control effects of the three pesticides were 56.2%, 52.4%, and 40.4% respectively, and the effects of the second application were 60.1%, 54.6%, and 45.2%; the control effects of the 30 g / ha treatment once were 68.5%, 57.1%, 54.6%, and the effects of 2 treatments were 87.6%, 82.8%, 72.6% respectively; the effects of 100 g / ha treatment were 90.2%, 86.3%, 79.5%, and the effects of 2 treatments were 93.5% %, 88.4%, 80.5%; the effects of 300 g / h...

example 2

[0030] Example 2. Test simultaneously with example 1, carry out the field control test with the equal ratio compound agent containing tebuconazole, flumecilidine alcohol, imazalil binary or ternary, the results show that tebuconazole+flumecilidin per Hectare sprayed 10, 30, 100, 300 grams of active ingredients mixed with 750 kg of water once at the flowering stage, and the effects of controlling wheat head blight were 53.2%, 65.5%, 89.4%, and 92.1%, respectively. Tebuconazole + imazalil per hectare with 10, 30, 100, 300 grams of active ingredients mixed with 750 kg of water and sprayed once at the flowering stage, the effects of controlling wheat head blight were 50.4%, 55.5%, 80.4%, 89.1% %. Flumecilidine + imazalil with 10, 30, 100, 300 grams of active ingredients mixed with 750 kg of water per hectare and sprayed once at the flowering stage, the effects of controlling wheat head blight were 48.4%, 50.8%, 78.1%, respectively. 86.1%. Tebuconazole + pyrimidine + imazalil spr...

example 3

[0031] Example 3. Use 30, 60, and 120 grams of active ingredients of tebuconazole per hectare and mix 750 kilograms of active ingredients with water to spray at different times in the late growth period of wheat, which shows that the suitable time range for controlling scab is wider. The results are shown in Table 1 below.

[0032] 30 g / ha

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Abstract

The present invention is method of using the mixture of JS399-19 and tebuconazole in preventing and controlling bakanae disease of wheat, barley, etc. with resistance to benzimidazole germicides. The present invention features that JS399-19 and tebuconazole in the effective component weight ratio of 1-40 to 1 are compounded, and the compounded preparation is used in preventing and controlling bakanae disease of wheat, barley, etc. through seed treatment and field spraying.

Description

[0001] This application is an application date: January 31, 2005, application number: 200510038292.9, title: a divisional application for a treatment method for drug-resistant wheat head blight. 1. Technical field [0002] The invention discloses a treatment method for drug-resistant wheat head blight, which belongs to the new application of fungicide and the invention of application technology thereof. Use the active ingredients of existing fungicides to completely or partially replace benzimidazole fungicides to prevent and control wheat head blight, control and delay the resistance of head blight bacteria to benzimidazole fungicides, and prevent the prevalence of drug-resistant head blight. 2. Technical Background [0003] Scab is one of the most important diseases in wheat production. Fusarium graminearum (Fusarium graminearum) is its main pathogenic fungus, which spreads through seeds and diseased residues, and can cause bud rot, seedling rot and ear rot of barley, whea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/653A01P1/00A01N43/54
Inventor 周明国王建新李恒奎
Owner NANJING AGRICULTURAL UNIVERSITY
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