CN115843804A - Synergistic composition for preventing and treating citrus moss - Google Patents

Synergistic composition for preventing and treating citrus moss Download PDF

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CN115843804A
CN115843804A CN202211639979.8A CN202211639979A CN115843804A CN 115843804 A CN115843804 A CN 115843804A CN 202211639979 A CN202211639979 A CN 202211639979A CN 115843804 A CN115843804 A CN 115843804A
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ethylicin
preventing
citrus
synergistic composition
treating
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刘丽辉
劳水兵
刘要鑫
邓铁军
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Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
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Guangxi Zhuang Nationality Autonomous Region Academy of Agricultural Sciences
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Abstract

The invention belongs to the technical field of pesticides, and particularly relates to a synergistic composition for preventing and treating citrus moss. A synergistic composition for preventing and treating citrus moss is prepared from ethylicin, benzoate, sorbate or sodium rosinate. The synergistic composition for preventing and treating the citrus greening disease shows a synergistic effect when the ethylicin is compounded with the benzoate, the sorbate or the sodium rosinate, can improve the preventing and treating effect on the citrus greening disease, is beneficial to reducing the application dosage of pesticides and delaying the development of pathogen resistance.

Description

Synergistic composition for preventing and treating citrus moss
Technical Field
The invention belongs to the technical field of pesticides, and particularly relates to a synergistic composition for preventing and treating citrus moss.
Background
In citrus orchard, trunks, branches, leaves and fruits are often seen, even a layer of green clothes is covered on the ground, the green clothes is a green moss disease, and the pathogen is Acidocella (Apatococcus lobatus) of the genus Acidocella of the family Vibrionaceae of the phylum Chlorophyta. The moss is mainly damaged in the middle and lower parts of the tree crown, and the whole tree is damaged when the moss is serious, so that the photosynthesis of the tree body and the appearance and quality of fruits are seriously influenced. In production, the agents such as ambam, difenoconazole, benziothiazolinone, vegetable oil or mineral oil with ethylicin and sodium dichloroisocyanurate with thiophanate methyl are used for controlling the occurrence of the moss. However, with the long-term use of drugs, the resistance of pathogens is continuously developed, resulting in the reduction of control effect year by year. Therefore, the development of an efficient medicament for preventing and treating the citrus moss is necessary.
The pesticide prepared by combining the effective components of different pesticides is an effective and quick way for developing and developing novel pesticides and preventing and treating resistant diseases and insect pests in agriculture at present. The active ingredients of different pesticides, when mixed, generally exhibit three types of action: additive action, synergistic action and antagonistic action. The formula with good compound synergy can obviously improve the actual prevention and treatment effect and reduce the using amount of pesticides, thereby greatly delaying the generation speed of the drug resistance of the plant diseases and insect pests, and being an important means for comprehensively preventing and treating the diseases.
Patent document CN202010249092.2 discloses a method for preventing and treating citrus moss pathogens, and the specification thereof discloses a moss pathogen inhibitor, wherein the inhibitor comprises the following components in percentage by weight: 10 parts of 45 percent effective content sodium rosinate, 490 parts of water and 1 part of plant emulsifiable concentrate, but the plant emulsifiable concentrate is not particularly specified. Moreover, the synergistic effect of the sodium abietate and different plant missible oils can be unexpectedly achieved by combining the sodium abietate with the different plant missible oils. Patent document CN202210339254.0 discloses a bactericide containing prochloraz and ethylicin, a preparation method and application thereof, and particularly discloses that the prochloraz and the ethylicin can be compounded to prevent and treat citrus greening disease. Patent document CN202111601259.8 discloses a composition for preventing and treating citrus moss, and specifically discloses that berberine and sorbate after being compounded have a synergistic effect on preventing and treating the citrus moss.
The patent documents respectively disclose the application of ethylicin, sorbate and sodium rosinate in the prevention and treatment of citrus lichen diseases, but the compounding of ethylicin and sorbate or sodium rosinate is not disclosed.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a synergistic composition for preventing and treating citrus greening disease, which shows a synergistic effect when ethylicin is compounded with benzoate, sorbate or sodium rosinate, can improve the preventing and treating effect on the citrus greening disease, is beneficial to reducing the application dosage of pesticide and delaying the development of pathogen resistance.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention aims to provide a synergistic composition for preventing and treating citrus moss, which is prepared by compounding ethylicin and benzoate, sorbate or sodium rosinate.
Preferably, the mass ratio of the ethylicin to the benzoate is 1-5:20-1.
Preferably, the mass ratio of the ethylicin to the sorbate is 1-30:10-1.
Preferably, the mass ratio of the ethylicin to the sodium rosinate is 1-15:15-1.
The invention also provides a pesticide preparation for preventing and treating citrus moss, which comprises the synergistic composition and auxiliary components.
Preferably, the mass of the synergistic composition accounts for 1-65% of the total mass of the pesticide preparation.
Compared with the prior art, the invention has the following beneficial effects:
(1) The synergistic composition for preventing and treating the citrus greening disease shows a synergistic effect when the ethylicin is compounded with the benzoate, the sorbate or the sodium rosinate, can improve the preventing and treating effect on the citrus greening disease, is beneficial to reducing the application dosage of pesticides and delaying the development of pathogen resistance.
(2) In the synergistic composition for preventing and treating the citrus greening disease, the ethylicin is a botanical pesticide, so that the pollution is small; the benzoate and the sorbate are food preservative and antistaling agents and have low toxicity; the sodium rosinate is a medicament taking natural raw materials as main bodies, and is safe to people, livestock and plants. The ethylicin and benzoate, sorbate or sodium rosinate have good safety when being compounded, and meet the safety requirement of pesticide preparations.
Detailed Description
The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments.
Pesticide effect in field: chemical control effect
1. Test agent
95% ethylicin, 99.5% sodium benzoate, 99% sodium sorbate and 99% sodium rosinate are all commercially available.
The test medicament is prepared into single-dose mother liquor, then a plurality of groups of proportions are set, and each single-dose mother liquor and the mixture of proportions are diluted by 0.1 percent of Tween-80 until the mass concentration of the effective components is 40mg/L for standby.
2. The test method (refer to the pesticide field efficacy test rule (II) GB/T17980.98-2004: mango anthracnose prevention and control by bactericide).
In a Nanfeng mandarin orange orchard of Daliantown of Weian county, shanghai, guangxi Liuzhou city, citrus trees with consistent growth vigor and plant depression and common occurrence of citrus greening disease are selected, and the pathogen is algae of Phaeococcus of Chlorophyta after identification.
The experiment set up multiple treatments, 3 replicates each, with 2 fruit trees replicated each. And (3) spraying a test medicament on the whole plant of each treated citrus tree by adopting a spraying method in the occurrence period of the moss disease, uniformly spraying the front and back surfaces of the branches and the leaves of the citrus trees without dripping liquid medicine, and spraying equivalent clear water as a blank control.
The test was performed for a total of 3 disease surveys: the 1 st investigation is the investigation before the first pesticide application, and the common disease of plants in a cell is investigated; the 2 nd investigation is 7d investigation after the first drug application; the 3 rd survey is 14d after the first application. Each tree surveys 5 azimuths in the south, the west and the north, 10 leaves in each azimuth, records and surveys the total leaves and the number of leaves with diseases at all levels, and calculates the disease index and the prevention and treatment effect of each treatment.
3. Blade disease grading table
See table 1.
TABLE 1 leaf disease grading Table
Progression of disease Lesion area of leaf
0 The leaf has no scab
1 The area of the scab accounts for less than 10% of the area of the leaf
3 The area of the scab accounts for 11-25% of the area of the leaf
5 The area of the lesion spots accounts for 26 to 50 percent of the area of the leaves
7 The area of the lesion spots accounts for 51-75% of the area of the leaf
9 The area of the scab accounts for more than 75 percent of the area of the leaf
4. Formula for calculation
Figure BDA0004008484250000041
Figure BDA0004008484250000042
5. Test results
See tables 2-4.
TABLE 2 prevention and cure effect of compound of ethylicin and sodium benzoate on citrus green moss
Figure BDA0004008484250000043
Figure BDA0004008484250000051
As can be seen from the table 2, after the application of the pesticide for 7 days, the ethylicin, the sodium benzoate and the different proportion treatment of the ethylicin and the sodium benzoate gradually show certain control effect on the citrus greening disease, and the control effect after the application of the pesticide for 14 days is better than that after the application of the pesticide for 7 days. When the pesticide is applied for 14 days, the control effect of the compound treatment of the ethylicin and the sodium benzoate is between 71.02 and 84.81 percent; the control effect of the separate treatment of the ethylicin and the sodium benzoate is lower than 71.02 percent.
TABLE 3 prevention and cure effect of compound of ethylicin and sodium sorbate on citrus green moss
Figure BDA0004008484250000052
As can be seen from Table 3, after the application of the composition for 7 days, the ethylicin, the sodium sorbate and the different proportions of the ethylicin and the sodium sorbate gradually show certain control effects on the citrus greening diseases, and the control effect after the application of the composition for 14 days is better than that after the application of the composition for 7 days. When the pesticide is applied for 14 days, the control effect of the compound treatment of the ethylicin and the sodium sorbate is between 80.74 and 93.32 percent; and the control effect of the separate treatment of the ethylicin and the sodium sorbate is lower than 80.74 percent.
TABLE 4 prevention and treatment effect of compound of ethylicin and sodium rosinate on citrus lichen disease
Figure BDA0004008484250000061
As can be seen from Table 4, after the application of the composition for 7 days, the ethylicin, the sodium rosinate and the different proportion treatment of the ethylicin and the sodium rosinate gradually show certain control effect on the citrus greening disease, and the control effect after the application of the composition for 14 days is better than that after the application of the composition for 7 days. When the pesticide is applied for 14 days, the prevention effect of the compound treatment of the ethylicin and the sodium rosinate is between 71.74 and 91.15 percent; the control effect of the separate treatments of the ethylicin and the sodium rosinate is lower than 71.74 percent.
In conclusion, the ethylicin and the benzoate, the sorbate or the sodium rosinate have a synergistic effect when compounded, so that the control effect on the citrus moss can be improved, the application dosage of the pesticide can be reduced, and the development of pathogen resistance can be delayed.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (6)

1. A synergistic composition for preventing and treating citrus moss is characterized by being prepared by compounding ethylicin, benzoate, sorbate or sodium rosinate.
2. The synergistic composition for controlling citrus greening disease according to claim 1, wherein the mass ratio of ethylicin to benzoate is 1-5:20-1.
3. The synergistic composition for preventing and treating citrus greening disease according to claim 1, wherein the mass ratio of ethylicin to sorbate is 1-30:10-1.
4. The synergistic composition for controlling citrus greening disease according to claim 1, wherein the mass ratio of ethylicin to sodium rosinate is 1-15:15-1.
5. A pesticidal formulation for controlling citrus moss which comprises the synergistic composition of any one of claims 1 to 4 and auxiliary ingredients.
6. The pesticide formulation as claimed in claim 5, wherein the mass of the synergistic composition is 1-65% of the total mass of the pesticide formulation.
CN202211639979.8A 2022-12-20 2022-12-20 Synergistic composition for preventing and treating citrus moss Pending CN115843804A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116283428A (en) * 2023-03-30 2023-06-23 陕西省生物农业研究所 Organic fertilizer for preventing soil-borne diseases of kiwi fruits and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116283428A (en) * 2023-03-30 2023-06-23 陕西省生物农业研究所 Organic fertilizer for preventing soil-borne diseases of kiwi fruits and preparation method thereof

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