Biological control method for powdery mildew of strawberries

A strawberry powdery mildew and strawberry technology, applied in botany equipment and methods, biocides, chemicals for biological control, etc., can solve the problems of chemical residues, increase the difficulty of prevention and control, and endanger human health, etc., to achieve The effect of low price, reduced infection base, and simple production method

Inactive Publication Date: 2017-01-04
HUIAN KELIAN AGRI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the long-term and large-scale use of chemical agents has caused various harmful bacteria to develop drug resistance, which has increased the difficulty of prevention and control; at the same time, there are residues of chemical agents in strawberries, which endanger people's health and pollute the environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for biological control of strawberry powdery mildew. Agave leaf grinding solution with a mass fraction of 0.2%-0.5% is prepared and stored in a dark place at low temperature and sealed for future use; in the first stage, strawberry is treated from February to March in the Gregorian calendar. Garden soil and strawberry plants were sprayed with agave leaf grinding solution at least once; in the second stage, strawberry plants were sprayed with agave leaf grinding solution at least once during the strawberry flowering period; in the third stage, strawberry plants were sprayed with Spraying the agave leaf grinding solution at least once; in the fourth stage, spraying the agave leaf grinding solution on the strawberry plants at least once during the strawberry red fruit stage can effectively prevent and control strawberry powdery mildew.

Embodiment 2

[0025] Inhibition experiment of Agave grass stem, leaf and fruit grinding solution on the monotheca spp.

[0026] 1. Experimental materials:

[0027] (1) 0.4% agave leaf grinding liquid

[0028] (2) 0.4% agave stem grinding liquid

[0029] (3) 0.4% agave fruit grinding liquid

[0030] 2. Test method

[0031] Firstly activate the powdery mildew, and culture the monocystic fungus of chrysanthemum in a 20°C incubator for 48 hours to obtain the test bacteria for later use; then pour the experimental materials (1)-(3) into a 75mm-diameter container In the PDA medium, use a triangular glass rod to spread the grinding liquid evenly, and then use a hole punch with a diameter of 12mm to prepare an activated monocystic fungus cake, and inoculate it on the surface with the mycelium facing down. Experimental materials (1)-(3) were in the middle of the PDA medium of the grinding solution, and the humidity of the PDA medium was controlled at 80%-90%, and placed in a constant temperature...

Embodiment 3

[0036] 1. Experimental time: 2015;

[0037] 2. Experimental location: a strawberry garden in Changfeng County, Anhui Province;

[0038] 3. Experimental method:

[0039] Divide a piece of strawberry garden into 6 parts, choose three rows for each part;

[0040] The first part adopts the method described in embodiment 1 to process, adopting mass fraction to be 0.2% agave leaf grinding liquid, spraying once in each period;

[0041] The second part adopts the method described in embodiment 1 to process, adopting mass fraction to be 0.3% agave leaf grinding liquid, spraying once in each period;

[0042] The third part adopts the method described in embodiment 1 to process, adopting massfraction to be 0.4% agave leaf grinding liquid, spraying once in each period;

[0043] The fourth part adopts the method described in embodiment 1 to process, adopting mass fraction to be 0.5% agave leaf grinding liquid, spraying once in each period;

[0044] The fifth part is to use 50% carbenda...

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PUM

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Abstract

The invention provides a biological control method for powdery mildew of strawberries. The method comprises the steps that 0.2%-0.5% by mass ground ottelia alismoides leaf fluid is prepared and placed in the low-temperature shadow to be sealed and stored for use; for the first stage, in February and March of the Gregorian calendar, the ground ottelia alismoides leaf fluid is applied to soil of a strawberry garden and strawberry plants at least once; for the second stage, in the strawberry flowering phase, the ground ottelia alismoides leaf fluid is applied to the strawberry plants at least once; for the third stage, in the strawberry green fruit stage, the ground ottelia alismoides leaf fluid is applied to the strawberry plants at least once; for the fourth stage, in the strawberry red fruit stage, the ground ottelia alismoides leaf fluid is applied to the strawberry plants at least once, and then the powdery mildew of the strawberries can be effectively controlled. According to the biological control method for the powdery mildew of the strawberries, the purpose of controlling diseases can be achieved, and the making method is simple, low in cost, more natural and more environmentally friendly; ottelia alismoides has the effects of clearing heat, removing toxicity, expelling phlegm to arrest coughing, treating asthma and the like and is beneficial for body health of people, and environmental pollution is reduced.

Description

technical field [0001] The invention relates to the field of plant protection and biological control of plant diseases, in particular to a method for biological control of strawberry powdery mildew. Background technique [0002] Strawberry powdery mildew is caused by the infection of the fungus Ascomycota subphylum Sphaerothecaaphanis. It is one of the main diseases in the growth of strawberries. When it occurs seriously, the diseased leaf rate is over 45%. The diseased fruit rate is more than 50%, which has seriously affected the yield, quality and economic benefits of strawberries. . [0003] Harm symptoms: Strawberry powdery mildew mainly harms leaves, petioles, flowers, pedicels and fruits, and rarely occurs on stolons. When the leaves are infected, a thin layer of white mycelium grows on the back of the leaves at the early stage of the disease. As the disease progresses, the leaves curl up and become spoon-shaped, and produce dark spots of various sizes. Later, the sp...

Claims

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Application Information

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IPC IPC(8): A01N65/40A01P3/00A01G13/00
CPCA01G13/00A01N65/00A01N65/40
Inventor 王少平
Owner HUIAN KELIAN AGRI TECH CO LTD
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