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Biogenic pesticide for efficiently preventing and controlling main diseases of Camellia oleifera and application thereof

A bio-derived pesticide, camellia oleifera technology, applied in the application, biocide, chemicals for biological control, etc., can solve the problems of unfavorable sustainable development of camellia oleifera industry, endangering human health, affecting the quality of camellia oil, etc. Promote the growth of Camellia oleifera, reduce the possibility of resistance, and have good control effects

Inactive Publication Date: 2011-02-09
HAINAN KEDA FORESTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the prevention and treatment of anthracnose and soft rot of Camellia oleifera is mainly controlled by planting resistant varieties and chemical control, but excessive use of chemical fungicides will endanger human health, destroy the ecological environment, and easily cause pathogenic bacteria to develop drug resistance, affecting tea. Oil quality is not conducive to the sustainable development of the entire Camellia oleifera industry

Method used

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  • Biogenic pesticide for efficiently preventing and controlling main diseases of Camellia oleifera and application thereof
  • Biogenic pesticide for efficiently preventing and controlling main diseases of Camellia oleifera and application thereof
  • Biogenic pesticide for efficiently preventing and controlling main diseases of Camellia oleifera and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Screening of plant extracts for effective control of major diseases of camellia oleifera

[0019] Using mycelia growth rate method: respectively draw 1ml of the plant extract solution with a concentration of 20mg / ml described in Table 1, and pour it into a sterilized Petri dish containing 9ml of PDA, and use 1ml of sterile water for the control, and wait for the culture medium After solidification, use a puncher with a diameter of 0.8 cm to make a fungus dish, use an inoculation needle to inoculate the fungus dish to the center of the culture medium, with the mycelium facing down, one piece for each dish, repeat 3 times for each treatment, and culture in a 28 incubator , and the colony diameter was measured by the cross method after 4 days of culture. Inhibition rates were calculated as the average of three replicates. The results are shown in Table 1

[0020] Table 1 Inhibitory effect of different plant extracts on major diseases of camellia oleifera

[0021]

[...

Embodiment 2

[0024] Effects of Biogenic Pesticides with Different Volume Ratio on the Growth of Camellia oleifera

[0025] Select 2-year-old Camellia oleifera seedlings with the same growth, and measure the height of each seedling, spray different proportions of biological source pesticides on the seedlings, and use sterile water as a control, spray 20 seedlings for each treatment, and spray again after 7 days. Measure the height of the seedlings one month later. The influence of biogenic pesticides on the growth of camellia oleifera was measured, and the results are shown in Table 2. Biogenic pesticides with different volume ratios can all promote the growth of camellia oleifera to a certain extent.

[0026] Table 2 Effects of different volume ratios of biogenic pesticides on the growth of Camellia oleifera

[0027]

[0028] Note: A 1 It is a compound solution of 5% clove extract + 5% skullcap extract + 5% orange peel extract + 5% tea saponin plant extract.

[0029] A 2 It is a com...

Embodiment 3

[0035] Induced and resistive effects of biogenic pesticides with different volume ratios on camellia oleifera

[0036] After mixing the biogenic pesticides according to the volume ratio in Table 3, spray the liquid medicine on the 2-year-old Camellia oleifera seedlings until water drips from the leaves, and then spray the liquid medicine again after 2 days. The yellow-green young leaves that had been sprayed with the liquid medicine were collected and inoculated, and distilled water was used as a control. Each treatment had 15 replicates. Observation results. It can be seen from Table 3 that the mixed biogenic pesticides with different volume ratios can induce the resistance of camellia oleifera to the main diseases of camellia oleifera.

[0037] Lesion reduction rate = lesion area of ​​control treatment - lesion area of ​​induction treatment / lesion area of ​​control treatment × 100%

[0038] Table 3 Induction and resistance effects of different proportions of biogenic pes...

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Abstract

The invention discloses a biogenic pesticide for efficiently preventing and controlling main diseases of camellia oleifera (anthracnose, soft rot and leaf blight of the camellia oleifera), namely a pesticidal aqueous solution agent compounded by an clove extract, a skullcap extract, an orange peel extract, tea saponin and bacterial filtrate after bacillus subtilis Y13 is fermented, also disclosesa preparation method and application thereof, and belongs to the technical field of plant protection. The biogenic compounded medicine can effectively inhibit the development of the anthracnose, softrot and leaf blight of the camellia oleifera, improve the resistance of the camellia oleifera to the anthracnose, soft rot and leaf blight and efficiently prevent and control the main diseases of thecamellia oleifera, has high environmental safety and has good development and application prospect.

Description

technical field [0001] The invention belongs to the field of plant protection, and in particular relates to a biological source pesticide for preventing and treating anthracnose, soft rot and leaf blight of camellia oleifera and its application. Background technique [0002] Camellia oleifera (Camellia oleifera) is a unique edible oil tree species in my country and one of the four largest woody oil tree species in the world. It has a history of utilization and cultivation for more than 2,000 years. It has wide adaptability and strong stress resistance, and is suitable for planting in vast red soil hilly areas. It mainly grows in the south, mainly in Hunan, Jiangxi, and Guangxi. Among them, Hunan Province is the largest camellia oleifera producing area and the largest camellia oil consumption area in China. Camellia oleifera is full of treasures and has high economic value. The unsaturated fatty acid content of camellia oil is as high as 90%, which is much higher than that ...

Claims

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Application Information

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IPC IPC(8): A01N65/22A01P3/00A01N43/16A01N65/28A01N65/36A01N63/02
Inventor 刘君昂周国英周建宏李琳宋光桃李河何苑皞
Owner HAINAN KEDA FORESTRY CO LTD
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