Composition for preventing and treating sclerotiniose and black rot of seed reproduction broccoli and use method of composition

Abstract

The invention discloses a composition for preventing and treating sclerotiniose and black rot of seed reproduction broccoli and a use method of the composition. The composition is prepared from the following components: 65 to 85 parts of thesium chinense extract, 50 to 70 parts of lemon grass extract, 1 to 3 parts of organic silicon, 800 to 1200 parts of xanthan gum and 800 to 1200 parts of water. The preparation method comprises the following steps: adding thesium chinense extract, lemon grass extract, organic silicon and xanthan gum into water, and uniformly stirring to obtain a medicament; on sunny days, a sharp knife is used for cutting off part of flowering branches from the upper inclined face to the lower inclined face, and the angle of a notch is 10-20 degrees; the obtained medicament is uniformly smeared on the cut by using a brush, so that the incidence rate of sclerotiniose and black rot of the cauliflower after flowering branch cutting can be obviously reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of plant protection, and in particular relates to a composition for preventing and treating sclerotinia disease and black rot of cauliflower for breeding and production, and a use method thereof. Background Art

[0002] Cauliflower diseases such as sclerotinia rot and black rot have become the main limiting factors for the development of the cauliflower industry and seed production. In the production areas suitable for cauliflower seed production, due to continuous cropping for many years in recent years, the incidence of plants in the main production areas has become increasingly high. The main diseases such as sclerotinia rot and black rot have a long period of damage, and the incidence rate in severe years is as high as 60% to 80%, which directly affects the yield and quality of cauliflower and the yield and quality of seeds in seed fields, posing a great threat to the production and seed preservation of cauliflower.

[0003] In cauliflower seed production and propagation, in order to achieve plant flowering period regulation or promote bolting, the treatment of cutting the bulb and leaving the branches is generally adopted. The wounds formed after cutting the bulb and leaving the branches are conducive to the infection and occurrence of the main fungal diseases of cauliflower, sclerotinia and bacterial diseases, black rot. When the disease is serious, the seriously diseased plants will not bolt and bloom, and the whole plant will die; when the disease is mild, the branches and pods of the diseased plants will shrivel, seriously affecting the seed collection. Summary of the invention

[0004] In order to overcome the problems existing in the prior art, the present invention provides a composition for preventing and treating sclerotinia disease and black rot of cauliflower for breeding and a use method thereof.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions:

[0006] The first aspect of the present invention provides a composition for preventing and treating sclerotinia and black rot of cauliflower, comprising the following components: 65-85 parts of cleome extract, 50-70 parts of lemongrass extract, 1-3 parts of organosilicon, 800-1200 parts of xanthan gum and 800-1200 parts of water.

[0007] Furthermore, the following components are included: 78 parts of cleome extract, 65 parts of lemongrass extract, 2 parts of organic silicon, 1000 parts of xanthan gum and 1000 parts of water.

[0008] The second aspect of the present invention provides a composition for preventing and controlling sclerotinia and black rot of cauliflower, comprising the following components: 65-85 parts of cleome extract, 50-70 parts of lemongrass extract, 30-45 parts of eucalyptus globulus leaf extract, 1-3 parts of organosilicon, 800-1200 parts of xanthan gum and 800-1200 parts of water.

[0009] Further, 70 parts of Herba Lysimachiae extract, 55 parts of Lemongrass extract, 37 parts of Eucalyptus globulus leaf extract, 1 part of organic silicon, 900 parts of xanthan gum and 1000 parts of water.

[0010] The third aspect of the present invention provides a method for using the above composition, comprising the following steps:

[0011] S1, adding plant-derived extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine; the plant-derived extract is hyacinthus annuus extract, lemongrass extract or hyacinthus annuus extract, lemongrass extract and eucalyptus globulus leaf extract;

[0012] S2, on a sunny day, use a sharp knife to cut the cauliflower stalks from top to bottom at an angle of 10 to 20 degrees;

[0013] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0014] Through the above technical scheme, the present invention can at least achieve the following beneficial effects: using the composition of the present invention to treat cauliflower incisions, compared with the general wound treatment after cutting the flower branches (commonly spraying 500 times of mancozeb solution or spreading lime-sulfur powder mixture), the incidence of sclerotinia rot and black rot is greatly reduced, and the prevention effect of sclerotinia rot and black rot can be effectively improved. DETAILED DESCRIPTION

[0015] Unless otherwise specified, the materials and reagents used in the present invention are commercially available.

[0016] In the present invention, the Herba Lysimachiae extract was purchased from Lanzhou Waterless Biotechnology Co., Ltd. and was a water extract with a specification of 20:1;

[0017] In the present invention, lemongrass extract was purchased from Shanyang Lianfeng Biotechnology Co., Ltd. and was a water extract with a specification of 20:1;

[0018] In the present invention, the eucalyptus globulus leaf extract was purchased from Shaanxi Junhe Biotechnology Co., Ltd. and was a water extract with a specification of 20:1;

[0019] In the present invention, the organosilicon is purchased from Shijiazhuang Golden Land Agricultural Science and Technology Development Co., Ltd., and its active ingredients are: ethoxy-modified polytrisiloxane;

[0020] In the present invention, xanthan gum was purchased from Xi'an Musen Bioengineering Co., Ltd., and the effective ingredient was greater than 99%;

[0021] In the present invention, the preparation method of the lime-sulfur powder mixture is as follows: 8 parts of quicklime, 1 part of sulfur powder, 0.5 part of salt and 30 parts of water.

[0022] Embodiment 1

[0023] A composition for preventing and treating sclerotinia and black rot of cauliflower seed production and propagation comprises the following components: 78 parts of cleome extract, 65 parts of lemongrass extract, 2 parts of organosilicon, 1000 parts of xanthan gum and 1000 parts of water.

[0024] The method for using the composition is as follows: S1, adding hyssop extract, lemongrass extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine;

[0025] S2, on a sunny day, use a sharp knife to cut off part of the flower branch from top to bottom, with an incision angle of 10 to 20 degrees;

[0026] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0027] Embodiment 2

[0028] A composition for preventing and treating sclerotinia and black rot of cauliflower seed propagation comprises the following components: 65 parts of cleome extract, 50 parts of lemongrass extract, 1 part of organosilicon, 800 parts of xanthan gum and 800 parts of water.

[0029] The method for using the composition is as follows: S1, adding hyssop extract, lemongrass extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine;

[0030] S2, on a sunny day, use a sharp knife to cut off part of the flower branch from top to bottom, with an incision angle of 10 to 20 degrees;

[0031] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0032] Embodiment 3

[0033] A composition for preventing and treating sclerotinia and black rot of cauliflower seed production and propagation comprises the following components: 85 parts of cleome extract, 70 parts of lemongrass extract, 3 parts of organosilicon, 1200 parts of xanthan gum and 1200 parts of water.

[0034] The method for using the composition is as follows: S1, adding hyssop extract, lemongrass extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine;

[0035] S2, on a sunny day, use a sharp knife to cut off part of the flower branch from top to bottom, with an incision angle of 10 to 20 degrees;

[0036] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0037] Embodiment 4

[0038] 75 parts of hyssop extract, 55 parts of lemongrass extract, 37 parts of eucalyptus globulus leaf extract, 1 part of organic silicon, 900 parts of xanthan gum and 1000 parts of water.

[0039] The method of using the composition is:

[0040] S1, adding plant-derived extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine; the plant-derived extract is hyacinthus annuus extract, lemongrass extract or hyacinthus annuus extract, lemongrass extract and eucalyptus globulus leaf extract;

[0041] S2, on a sunny day, use a sharp knife to cut the cauliflower stalks from top to bottom at an angle of 10 to 20 degrees;

[0042] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0043] Embodiment 5

[0044] 65 parts of hyssop extract, 50 parts of lemongrass extract, 30 parts of eucalyptus globulus leaf extract, 1 part of organic silicon, 800 parts of xanthan gum and 800 parts of water.

[0045] The method of using the composition is:

[0046] S1, adding plant-derived extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine; the plant-derived extract is hyacinthus annuus extract, lemongrass extract or hyacinthus annuus extract, lemongrass extract and eucalyptus globulus leaf extract;

[0047] S2, on a sunny day, use a sharp knife to cut the cauliflower stalks from top to bottom at an angle of 10 to 20 degrees;

[0048] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0049] Embodiment 6

[0050] A composition for preventing and treating sclerotinia and black rot of cauliflower for breeding, comprising the following components: 85 parts of cleome extract, 70 parts of lemongrass extract, 45 parts of eucalyptus globulus leaf extract, 3 parts of organosilicon, 1200 parts of xanthan gum and 1200 parts of water.

[0051] Comparative Example 1

[0052] The difference between Comparative Example 1 and Example 1 is that the extract of Herba Lysimachiae is replaced with lemongrass extract;

[0053] The method for using the composition is as follows: S1, adding the herbaceous lily extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine;

[0054] S2, on a sunny day, use a sharp knife to cut off part of the flower branch from top to bottom, with an incision angle of 10 to 20 degrees;

[0055] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0056] Comparative Example 2

[0057] The difference between Comparative Example 2 and Example 1 is that the lemongrass extract is replaced with the herbaceous lily extract;

[0058] The method for using the composition is as follows: S1, adding the herbaceous lily extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine;

[0059] S2, on a sunny day, use a sharp knife to cut off part of the flower branch from top to bottom, with an incision angle of 10 to 20 degrees;

[0060] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0061] Comparative Example 3

[0062] The difference between Comparative Example 3 and Example 1 is that Comparative Example 3 does not contain lemongrass extract and cleome extract.

[0063] The method for using the composition is as follows: S1, adding silicone and xanthan gum into water, stirring evenly, to obtain a medicine;

[0064] S2, on a sunny day, use a sharp knife to cut off part of the flower branch from top to bottom, with an incision angle of 10 to 20 degrees;

[0065] S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

[0066] Comparative Example 4

[0067] The difference between Comparative Example 4 and Example 4 is that the extract of Herba Lysimachiae is replaced with the extract of Eucalyptus globulus.

[0068] The difference between Comparative Example 5 and Example 4 is that the lemongrass extract is replaced with eucalyptus globulus extract; Field experiment

[0069] Cauliflower for seed production was planted in a field. The cauliflower in the same field was divided into two zones, one for each of Examples 1 to 6 and Comparative Examples 1 to 5. A zone was set up for spraying 80% Zineb 500 times solution, a zone for brushing lime sulfur powder mixture, and a blank control without any treatment. There were 1000 cauliflowers in each zone. Except for the different agents brushed / sprayed after cutting the flower branches, the rest of the management was the same. The number of times of spraying / brushing the agent was once. The incidence of sclerotinia and black rot was counted on the 20th and 40th days after the treatment, as shown in the following Table 1.

[0070] Table 1 Disease status of cauliflower under each treatment

[0071]

[0072]

[0073] As can be seen from the above, the use of the composition of the present invention to treat the cut surface of cauliflower after the flower branches are cut has a more significant effect on preventing and controlling cauliflower sclerotinia and black rot than the traditional method of spraying 500 times of 80% mancozeb solution and brushing lime sulfur powder mixture.

[0074] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail through the above preferred embodiments, it should be understood by those skilled in the art that various changes can be made to the present invention in form and detail without departing from the scope defined by the claims of the present invention. Use a brush to evenly apply the agent obtained in step S1 on the incision.

Claims

1. A composition for preventing and treating sclerotinia and black rot of cauliflower, characterized in that: The invention comprises the following components: 65-85 parts of hyssop extract, 50-70 parts of lemongrass extract, 1-3 parts of organic silicon, 800-1200 parts of xanthan gum and 800-1200 parts of water.

2. The composition for preventing and treating sclerotinia and black rot of cauliflower according to claim 1, characterized in that: The invention comprises the following components: 78 parts of hyssop extract, 65 parts of lemongrass extract, 2 parts of organic silicon, 1000 parts of xanthan gum and 1000 parts of water.

3. A composition for preventing and treating sclerotinia and black rot of cauliflower, characterized in that: The invention comprises the following components: 65-85 parts of hyssop extract, 50-70 parts of lemongrass extract, 30-45 parts of eucalyptus globulus leaf extract, 1-3 parts of organic silicon, 800-1200 parts of xanthan gum and 800-1200 parts of water.

4. The composition for preventing and treating sclerotinia and black rot of cauliflower according to claim 1, characterized in that: 75 parts of hyssop extract, 55 parts of lemongrass extract, 37 parts of eucalyptus globulus leaf extract, 1 part of organic silicon, 900 parts of xanthan gum and 1000 parts of water.

5. A method for using the composition according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, adding plant-derived extract, silicone and xanthan gum into water, stirring evenly to obtain a medicine; the plant-derived extract is hyacinthus annuus extract, lemongrass extract or hyacinthus annuus extract, lemongrass extract and eucalyptus globulus leaf extract; S2, on a sunny day, use a sharp knife to cut the cauliflower stalks from top to bottom at an angle of 10 to 20 degrees; S3, use a brush to evenly apply the agent obtained in step S1 on the incision.

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