Composition for preventing and treating sclerotinia and black rot of cauliflower and its use method

Abstract

The present invention discloses a composition for preventing and treating sclerotinia rot and black rot of cauliflower and a method for using the composition. The composition comprises the following components: 65-85 parts of a clematis extract, 50-70 parts of a lemongrass extract, 1-3 parts of organosilicon, 800-1200 parts of xanthan gum, and 800-1200 parts of water. The clematis extract, the lemongrass extract, the organosilicon, and the xanthan gum are added to water and stirred evenly to obtain a medicament. On a sunny day, a portion of a flower branch is cut from top to bottom with a sharp knife at an incision angle of 10 to 20 degrees. The obtained medicament is evenly applied to the incision with a brush. The medicament can significantly reduce the incidence of sclerotinia rot and black rot of the cauliflower after the flower branch is cut.

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 major constraints on the development of the cauliflower industry and seed production. In areas suitable for cauliflower seed production and propagation, plant disease rates have increased significantly in recent years due to continuous cropping. These diseases, such as sclerotinia rot and black rot, persist for a long time, with incidence rates reaching 60% to 80% in severe years. This directly impacts cauliflower yield and quality, as well as the yield and quality of seed for seedlings, posing a significant threat to cauliflower production and seed conservation.

[0003] In cauliflower seed propagation, bulb cutting, with branches left untouched, is commonly used to regulate flowering and promote bolting. However, the wounds created by this process facilitate infection with major cauliflower diseases, including sclerotinia sclerotinia and black rot. In severe cases, the plant will not bolt or flower, with the entire plant dying. In milder cases, the branches and pods will shrivel, severely impacting seed yields. 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 rot and black rot of cauliflower seed propagation and a use method thereof.

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

[0006] A first aspect of the present invention provides a composition for preventing and controlling sclerotinia and black rot of cauliflower seed propagation, comprising the following components: 65-85 parts of clematis 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 Herba Lycopodii extract, 65 parts of Lemongrass extract, 2 parts of organic silicon, 1000 parts of xanthan gum and 1000 parts of water.

[0008] A second aspect of the present invention provides a composition for preventing and controlling sclerotinia and black rot of cauliflower seed propagation, comprising the following components: 65-85 parts of clematis 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] Furthermore, 70 parts of Herba Lycopodii 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] A third aspect of the present invention provides a method for using the above composition, comprising the following steps:

[0011] S1, adding a plant-derived extract, silicone, and xanthan gum to water and stirring uniformly to obtain a medicament; the plant-derived extract is hyssop extract, lemongrass extract, or hyssop extract, lemongrass extract, and eucalyptus globulus leaf extract;

[0012] S2, on a sunny day, use a sharp knife to cut the cauliflower florets 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 solution, the present invention can at least achieve the following beneficial effects: when the composition of the present invention is used to treat cauliflower incisions, the incidence of sclerotinia rot and black rot is greatly reduced compared with the general wound treatment after cutting the flower branches (commonly used spraying 500 times of mancozeb solution or spreading lime and sulfur powder mixture), and the prevention effect of sclerotinia rot and black rot can be significantly improved. DETAILED DESCRIPTION

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

[0016] In the present invention, the Herba Lycopodii 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 was 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 active ingredient content 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] Example 1

[0023] A composition for preventing and treating sclerotinia rot and black rot of cauliflower seed propagation comprises the following components: 78 parts of clematis 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 to 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 at an angle of 10 to 20 degrees;

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

[0027] Example 2

[0028] A composition for preventing and treating sclerotinia rot and black rot of cauliflower seed propagation comprises the following components: 65 parts of clematis 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 to 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 at an angle of 10 to 20 degrees;

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

[0032] Example 3

[0033] A composition for preventing and treating sclerotinia rot and black rot of cauliflower seed propagation comprises the following components: 85 parts of clematis 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 to 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 at an angle of 10 to 20 degrees;

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

[0037] Example 4

[0038] 75 parts of Herba Lycopersicon esculenta 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 a plant-derived extract, silicone, and xanthan gum to water and stirring uniformly to obtain a medicament; the plant-derived extract is hyssop extract, lemongrass extract, or hyssop extract, lemongrass extract, and eucalyptus globulus leaf extract;

[0041] S2, on a sunny day, use a sharp knife to cut the cauliflower florets 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] Example 5

[0044] 65 parts of Herba Lycopersicon esculenta 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 a plant-derived extract, silicone, and xanthan gum to water and stirring uniformly to obtain a medicament; the plant-derived extract is hyssop extract, lemongrass extract, or hyssop extract, lemongrass extract, and eucalyptus globulus leaf extract;

[0047] S2, on a sunny day, use a sharp knife to cut the cauliflower florets 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] Example 6

[0050] A composition for preventing and treating sclerotinia and black rot of cauliflower seed propagation comprises the following components: 85 parts of clematis 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 Herba Lysimachiae extract is replaced with the Lemongrass extract;

[0053] The method for using the composition is as follows: S1, adding the herbaceous lily extract, silicone and xanthan gum to 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 at an 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 to 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 at an 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 clematis extract.

[0063] The method for using the composition is as follows: S1, adding silicone and xanthan gum to 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 at an 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 Herba Lycopodii extract is replaced with Eucalyptus globulus extract; Example 5

[0068] Comparative Example 5 is different from Example 4 in that the lemongrass extract is replaced with eucalyptus globulus extract;

[0069] Cauliflower seed plants were planted in a field. The cauliflowers in the same field were divided into two sections: one section for each of Examples 1 to 6 and one for each of Comparative Examples 1 to 5. The sections were each sprayed with a 500-fold dilution of 80% Mancozeb, another section sprayed with a mixture of lime and sulfur powder, and a blank control section that received no treatment. Each section had 1,000 cauliflower plants. The treatments were identical except for the spraying / treatments applied after the flower branches were removed. The spraying / treatments were all repeated once. The incidence of sclerotinia rot and black rot was recorded 20 and 40 days after treatment, as shown in Table 1 below.

[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 is more effective in preventing and controlling sclerotinia and black rot of cauliflower than the traditional method of spraying 500 times diluted 80% mancozeb and brushing with lime and sulfur powder mixture.

[0074] Finally, it should be noted that the above preferred embodiments are intended only 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 may be made thereto in form and detail without departing from the scope of the present invention as defined by the claims. Use a brush to evenly apply the agent obtained in step S1 to the incision.

Claims

1. A composition for preventing and treating sclerotinia rot and black rot of cauliflower, characterized in that: The invention is composed of the following components in parts by weight: 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; the hyssop extract is a water extract, and the lemongrass extract is a water extract.

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

3. The method for using the composition according to claim 1 or 2, wherein: The following steps are involved: S1, adding hyssop extract, lemongrass extract, silicone and xanthan gum to water, and stirring evenly to obtain a medicine; S2, on a sunny day, use a sharp knife to cut the cauliflower florets 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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