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A mixture for inducing resistance to bacterial wilt in eucalyptus

A mixture and a technology for bacterial wilt disease, which is applied in the field of forest disease prevention and control for forest protection, can solve problems such as unreported prevention and control technology of eucalyptus bacterial wilt disease, and achieve the effect of improving resistance

Inactive Publication Date: 2017-09-29
SOUTH CHINA AGRI UNIV
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  • Abstract
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Problems solved by technology

For example, there is no report on the control technology of Eucalyptus bacterial wilt using a combination of biological inducers and chemical inducers

Method used

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  • A mixture for inducing resistance to bacterial wilt in eucalyptus

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Embodiment 1

[0009] Use potato juice medium to inoculate non-pathogenic Ralstonia solanacearum strain (AXY22), after fully cultivating, prepare to the required concentration, and fully mix with benzothiadiazole (BTH) at a volume ratio of 1:1 , add 0.05% Tween 20, spray eucalyptus seedlings, use 0.05% Tween 20 aqueous solution as a control, spray once every 7 days, after 3 times of induction, challenge inoculation of bacterial wilt, wait for 5d, 10d, 15d and 15d after inoculation Investigate the relative disease intensity of the control and treated seedlings on the 20th day, and calculate the induction effect of each treatment. The control effect of eucalyptus induced by inducers on bacterial wilt is shown in Table 1. The data in the table are the average value of three parallels, and the relative standard deviation is less than 10%.

[0010] Table 1

[0011]

[0012] Pot experiments showed that the induction effect reached 87% 5 days after challenge inoculation, and 42% remained after ...

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PUM

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Abstract

The invention relates to a method for inducing resistance to bacterial wilt of eucalyptus by using a mixture of benzothiadiazole (BTH) and non-pathogenic Ralstonia solanacearum strain (AXY22) at a volume ratio of 1:1. Spraying eucalyptus seedlings with this mixture inducer, supplemented with Tween as a penetrating agent, can significantly improve the resistance of eucalyptus to bacterial wilt, which is economical, simple and easy to implement, and is environmentally friendly and does not cause resistance to the disease And sustainable application, to achieve the purpose of disaster reduction.

Description

[0001] The present invention is completed under the support of the national science and technology plan project of the "Twelfth Five-Year Plan" in rural areas "Southern short-cycle industrial timber forest disease and insect pest control technology" (2012BAD19B0802); Guangdong Forestry Science and Technology Innovation Project (2010KJCX015-01). technical field [0002] The invention relates to an inducer for controlling eucalyptus bacterial wilt and belongs to the technical field of forest disease prevention and control in forest protection. Background technique [0003] Eucalyptus bacterial wilt is a systemic vascular disease caused by Ralstonia solanacearum (Smith) Yabuuchi et al. It has been reported in some countries in Brazil, Australia, Uganda, Congo and South Africa, China It was first found on young trees such as meranti (E.saliero Sm.) and giant eucalyptus (E.grandis Hillex Maid.) in Guangxi, and its main hosts are E. grandis×E.urophyIla, Eucalyptus eucalyptus (E.urop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N63/00A01P1/00A01N43/828
Inventor 李波王军孙思
Owner SOUTH CHINA AGRI UNIV
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