CN117223711A - Prevention and treatment medicament and method for citrus unshiu degeneration disease - Google Patents
Prevention and treatment medicament and method for citrus unshiu degeneration disease Download PDFInfo
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- 201000010099 disease Diseases 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000003814 drug Substances 0.000 title claims abstract description 22
- 241000555678 Citrus unshiu Species 0.000 title claims abstract description 13
- 230000007850 degeneration Effects 0.000 title abstract description 5
- 230000002265 prevention Effects 0.000 title description 9
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- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a medicament and a method for preventing and treating a citrus unshiu degeneration disease, wherein the medicament for preventing and treating the citrus unshiu degeneration disease comprises the following components: diethyl aminoethyl hexanoate, amino oligosaccharin, morpholine biguanide hydrochloride, dufulin and seaweed extract. According to the invention, through the combined action of the diethyl aminoethyl hexanoate, the amino-oligosaccharin, the moroxydine hydrochloride, the Dufulin and the seaweed extract, on one hand, viruses in the citrus reticulata are killed and inhibited, and on the other hand, the disease resistance of the overall system of crops is improved, so that the citrus reticulata tristimania can be effectively prevented and treated, and the yellowing tree is recovered to be normal.
Description
Technical Field
The invention relates to the technical field of pest control, in particular to a pesticide and a method for controlling a citrus unshiu recession disease.
Background
The citrus valaciclosis comprises a plurality of diseases such as a recession disease (CTV), a mosaic disease (CTLV), a mosaic disease (Huang Maibing) (CYVCV), a split skin disease (CEV), an atrophy disease (SDV) and the like, wherein the most common diseases are the recession disease and the mosaic disease, the total incidence rate of the two diseases is almost over 90 percent according to experimental statistics, and the recession disease can lead to yellowing and weakness and death of a tree body. The disease tree of the recession disease has fewer leaves, and the leaves are dark, light yellow, matt and very brittle, little or very short, light yellow, matt, and sometimes bloom in other climates. Sometimes, the disease branch tips are withered from top to bottom, or the disease leaves are suddenly withered, obviously dwarfed, and the disease branch tips are also abnormally brittle and very easy to break. The tree trunk bark is stripped, so that a plurality of concave points or concave strip grooves with different shapes and lengths appear on the xylem of the tree trunk bark, and the innermost catheter of the xylem is stripped continuously, so that brown lines with different lengths and sizes can be seen, normal nutrition transportation of the tree body is seriously hindered, and the tree vigor of the tree body is weakened and etiolated rapidly.
At present, the damage of the Vorticher virus disease, particularly the tristimania disease is not known, the yellowing phenomenon caused by the tristimania disease is attributed to the yellow dragon disease damage, and a plurality of orchards are damaged due to the miscrea, but the Vorticher virus disease and the tristimania disease are different. Citrus tristeza is a disease which can cause the healthy tree to have serious weakening and yellowing of tree vigor in a short time, and almost all citrus varieties can be endangered. As the recession disease has no effective prevention and treatment means, fruit farmers can only cut off the fruit, and great loss is caused.
Disclosure of Invention
The invention aims to solve the technical problem of providing a medicament and a method for preventing and treating a citrus tristimania. The invention reduces the influence of the recession disease on the citrus by means of killing and inhibiting the virus in the citrus and improving the disease resistance of the overall system of crops.
The technical scheme for solving the technical problems is as follows: the preparation for preventing and treating the citrus unshiu degeneration disease comprises the following components: diethyl aminoethyl hexanoate, amino oligosaccharin, morpholine biguanide hydrochloride, dufulin and seaweed extract.
The principle of the invention is explained:
the diethyl aminoethyl hexanoate can improve the activities of plant peroxidase and nitrate reductase, improve the content of chlorophyll, accelerate photosynthesis, promote the division and elongation of plant cells, promote the development of root systems, and regulate the balance of nutrients in the body.
The amino oligosaccharin has the function of killing bacteria, fungi and viruses. Not only has extremely strong prevention and elimination effects on fungi, bacteria and viruses, but also has cell activation effect, is beneficial to recovery of victim plants, enhances stress resistance of crops and promotes plant growth and development.
Mortierella spinosa is capable of inhibiting viral DNA and RNA polymerase, thereby inhibiting viral reproduction. The low concentration has obvious inhibiting effect on DNA virus and RNA virus and inhibiting effect on each stage of virus proliferation cycle.
The profenofos activates salicylic acid signal molecules to activate downstream plant defense factors, so that the disease resistance of the overall system of crops is improved, and finally viruses cannot proliferate. The plant virus-killing agent has a strong systemic effect, can be quickly transmitted to each part of a plant through the absorption of crop leaves, damages the virus shell, fixes the virus and can not continue to proliferate, and effectively prevents the further spread of diseases.
The seaweed essence integrates plant nutrient substances, bioactive substances and plant stress-resistant factors, and is an ideal full-function seaweed fertilizer. Besides alginic acid, it also contains nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, copper, zinc, molybdenum, boron and other elements necessary for plants; the plant growth substance (auxin, cytokinin, gibberellin and the like) which has obvious influence on the physiological process of the plant and can be directly absorbed and utilized by the plant is also contained in the plant; also contains vitamins, nucleotide, humic acid, plant stress-resistance factor, etc.
The invention improves the activity of plant peroxidase and nitrate reductase through diethyl aminoethyl hexanoate, improves the content of chlorophyll, accelerates photosynthetic speed, promotes the division and elongation of plant cells, promotes the development of root systems and regulates the balance of nutrients in the body; the amino oligosaccharin has the functions of killing bacteria, fungi and viruses, activating cells, recovering victims, enhancing stress resistance and promoting plant growth; mortierella spinosa inhibits viral DNA and RNA polymerase, thereby inhibiting viral reproduction; the profenofos activates downstream plant defense factors by activating plant salicylic acid signal molecules, so that the disease resistance of the overall system of crops is improved, and finally viruses cannot proliferate; the seaweed essence integrates plant nutrient substances, bioactive substances and plant stress-resistant factors, and under the combined action of the substances, viruses in the citrus reticulata can be killed and inhibited on the one hand, and the disease resistance of the overall system of crops can be improved on the other hand, so that the citrus reticulata can be effectively prevented and treated from degenerating diseases, and the yellowing tree can be recovered to be normal.
The beneficial effects of the invention are as follows: the preparation for preventing and treating the citrus tristeza can effectively prevent and treat the citrus tristeza, greatly lightens the yellowing phenomenon caused by the tristeza, can lead the yellowing tree to recover to be normal, can grow normally and lightens the influence of the tristeza on the citrus industry.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the composition comprises the following components in percentage by mass: 0.00001-10.0% of diethyl aminoethyl hexanoate, 0.00001-10.0% of amino-oligosaccharin, 0.00001-30% of morpholine biguanide hydrochloride, 0.00001-30% of Dufulin and 0.00001-30.0% of seaweed essence, and the balance of water.
The beneficial effects of adopting the further scheme are as follows: by controlling the concentration of each substance in the medicament, the coordination effect among the substances can be ensured, the acting effect of the medicament is improved, and the use times are proper.
Further, the composition comprises the following components in percentage by mass: 0.000033% of diethyl aminoethyl hexanoate, 0.000033% of amino-oligosaccharin and 0.0003% of moroxydine hydrochloride 、 0.0003% of Dufulin, 0.000067% of seaweed extract and the balance of water.
Further, the composition comprises the following components in percentage by mass: diethyl aminoethyl hexanoate 0.0033%, amino-oligosaccharin 0.0033%, mortierella spinosa hydrochloride 0.03% 、 0.03% of Dufulin, 0.00067% of seaweed extract and the balance of water.
The beneficial effects of adopting the further scheme are as follows: the above parameters can optimize the effect of the medicament and reduce the number of times of use.
The invention provides a method for preventing and treating the citrus tristeza for realizing the second purpose.
The technical scheme for solving the technical problems is as follows: a method for controlling a citrus unshiu tristeza, the method comprising:
before the occurrence of the recession disease, the full tree spraying is carried out by adopting the preventing and treating agent for the citrus recession disease, and each tree spraying contains 1.5-2.0L of the preventing and treating agent liquid medicine.
The beneficial effects of adopting above-mentioned scheme are: because the moroxydine hydrochloride and the profenofos in the control medicament are medicaments for inhibiting viruses and activating plant defense factors, the control medicament must be prevented in advance during control, and yellowing caused by the recession disease can be greatly reduced by spraying the control medicament, so that the occurrence rate of the recession disease is reduced, and citrus can grow normally.
Further, the spraying time is 3 middle, 4 late, 7 late and 8 middle respectively.
The beneficial effects of adopting the further scheme are as follows: the recession disease can occur all year round, especially the occurrence of 4-5 months and 9-10 months is most serious, and experiments prove that the pesticide is applied in the middle of 3 months, the last of 4 months, the last of 7 months and the middle of 8 months, and the prevention and treatment effect is better.
Further, the number of spraying is at least 4 times per year.
The beneficial effects of adopting the further scheme are as follows: the yellowing phenomenon caused by the recession disease can be greatly reduced by spraying four times a year.
Further, the method further comprises:
and (3) respectively spraying roots by using an organic fertilizer containing potassium fulvate for 4 months and 7 months, and fertilizing and draining.
The beneficial effects of adopting the further scheme are as follows: the 4 months and the 7 months are peak periods of the growth of the root of the annual citrus, and the potassium fulvate has strong rooting stimulation effect, so that a large number of new roots can be extracted from the root after spraying, the tree vigor can be quickly recovered, and the disease resistance of crops is improved. Drainage can prevent ponding and waterlogging from damaging roots, and a good control effect is ensured.
Further, the root leaching by adopting the organic fertilizer containing the potassium fulvate comprises the following steps:
diluting the organic fertilizer containing potassium fulvate 300-500 times, and then leaching the roots;
the organic matter content of the organic fertilizer containing the potassium fulvate is at least 45 percent, N, P 2 O 5 And K 2 The total O content is at least 5%.
The beneficial effects of adopting the further scheme are as follows: by controlling the content of the nutrient substances of the organic fertilizer, the new root extraction of the root is better promoted.
Further, the water application amount is 25-50 kg per plant 。
It should be noted that: 25kg of water can be applied on the next day after rain, and 50kg of water can be applied when drought is not rainy.
The beneficial effects of adopting the further scheme are as follows: the potassium fulvate water solution can permeate into a capillary root layer of 15-20 cm underground by controlling the water application amount, so that the roots are fully absorbed.
Further, the root shower times are at least 2 times per year.
The beneficial effects of adopting the further scheme are as follows: through at least two times of root spraying, the root extraction of new roots can be better promoted.
Drawings
Fig. 1 is a diagram of a citrus unshiu plant treated by treatment 4 of the method for controlling citrus unshiu tristimania provided by the embodiment of the present invention;
fig. 2 is a diagram of the whole-plant symptoms of the citrus unshiu plant tristimania disease before being treated by the control method of the citrus unshiu tristimania disease provided by the embodiment of the invention;
fig. 3 is a leaf symptom chart of a citrus plant recession disease before treatment by the control method of the citrus recession disease provided by the embodiment of the invention;
fig. 4 is a diagram showing trunk symptoms of a citrus plant recession disease before treatment by the control method of the citrus recession disease according to the embodiment of the present invention.
Detailed Description
The principles and features of the present invention are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the invention. The specific techniques or conditions are not identified in the examples and are described in the literature in this field or are carried out in accordance with the product specifications. The reagents or apparatus used were conventional products commercially available through regular channels, with no manufacturer noted.
Examples
Test treatment:
drug and experimental concentration: treatment 1:5% diethyl aminoethyl hexanoate AS1500 times;
treatment 2:5% diethyl aminoethyl hexanoate AS 1500-fold, 5% amino oligosaccharin AS 1500-fold;
treatment 3: :5% diethyl aminoethyl hexanoate AS1500 times, 5% amino oligosaccharin AS1500 times, 30% Dufulin moroxydine SC 500 times;
treatment 4:5% diethyl aminoethyl hexanoate AS1500 times, 5% amino oligosaccharin AS1500 times, 30% Dufulin moroxydine SC 500 times, and seaweed extract 1500 times;
treatment 5: no medicine is contained, all water is used as a blank control;
description: 30% of Dufulin is composed of 15% of Dufulin and 15% of Moroxydine hydrochloride.
Test time: month 17 of 2022, month 20 of 2022, month 15 of 2022, month 8 of 2022, and day 25 of 2022.
Test object: the citrus planting field (the citrus fruit stock commonly has a stone citrus which is located in Guangxi Gui Lin Shiyang Shi county and Gao Tiancun years old and has a stone citrus, and citrus tristeza disease in an orchard is commonly generated) is divided into 5 treatment areas (the morbidity of each area is 35% -67% different) which are respectively and correspondingly treated for 1-5, and the area of each treatment area is about 0.1 mu;
root spraying treatment: organic fertilizer containing potassium fulvate (organic matter content in the organic fertilizer is 45%, N, P) 2 O 5 And K 2 Total O content 5%) was diluted 400-fold with treatment times of 2022, 4 months, 16 days, 2022, 7 months, 23 days.
The treatment method comprises the following steps:
spraying the whole tree once by using the medicaments treated by 1 to 5 on the 3 rd month 17 th year 2022, the 4 th month 20 th year 2022, the 7 th month 15 th year 2022 and the 8 th month 25 th year 2022, wherein the amount of the sprayed liquid medicine is 1.8L for each plant;
the organic fertilizer containing the potassium fulvate is diluted 400 times and root-drenched once, 35 kg/plant of water is applied, and drainage is carried out at the same time, at the day of 4 months in 2022 and the day of 7 months in 2022.
Inspection time: each treatment was randomly collected samples prior to dosing (fig. 2-4), four applications and two root drenches (fig. 1), and each treatment was randomly sampled back to the laboratory for detection at day 12, 2022.
Inspection instrument: the relative average chlorophyll content of citrus tree leaves at each treatment zone was measured using a chlorophyll meter (konika SPAD-502) using TR-PCDR assay technique and the results are shown in table 1. Wherein, the control effect is calculated according to the following formula:
control effect (%) = [1- (post-treatment area drug positive rate x control area pre-drug positive rate)/(pre-treatment area drug positive rate x control area post-drug positive rate) ]x100.
TABLE 1 control effect
From table 1, it can be seen that the prevention and treatment effect of only using diethyl aminoethyl hexanoate on the citrus tristeza disease is only 26.3%, the prevention and treatment effect is improved to 36.3% after adding amino oligosaccharin, the prevention and treatment effect after adding Dufulin and Mortierella spinosa hydrochloride reaches 60.2%, the prevention and treatment effect after adding seaweed essence reaches 64.8%, and chlorophyll of the leaves is obviously increased, and the green is basically recovered.
In conclusion, the preparation for preventing and treating the citrus tristeza disease can effectively prevent and treat the citrus tristeza disease, greatly lighten the yellowing phenomenon caused by the tristeza disease, enable the yellowing tree to recover to be normal, enable the normal growth and lighten the influence of the tristeza disease on the citrus industry.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (9)
1. A control agent for a citrus unshiu disease, characterized by comprising the following components: diethyl aminoethyl hexanoate, amino oligosaccharin, morpholine biguanide hydrochloride, dufulin and seaweed extract.
2. The agent for preventing and treating a citrus tristeza according to claim 1, comprising the following components in percentage by mass: 0.00001 to 10.0 percent of diethyl aminoethyl hexanoate, 0.00001 to 10.0 percent of amino-oligosaccharin, 0.00001 to 30 percent of morpholine biguanide hydrochloride, 0.00001 to 30 percent of Dufulin, 0.00001 to 30 percent of seaweed extract and the balance of water.
3. A method for controlling a citrus unshiu disease, the method comprising:
before the occurrence of the recession disease, the full tree spraying is carried out by adopting the control agent for the citrus recession disease according to any one of claims 1 to 3, and each tree spraying contains 1.5 to 2.0L of the control agent liquid medicine.
4. The method for preventing and treating citrus tristeza according to claim 3, wherein the spraying time is 3 middle, 4 late, 7 late and 8 middle respectively.
5. A method for controlling a citrus tristeza according to claim 3, characterized in that the number of spraying is at least 4/year.
6. The method for controlling a citrus tristeza according to claim 3, characterized in that the method further comprises:
and (3) respectively spraying roots by using an organic fertilizer containing potassium fulvate for 4 months and 7 months, and fertilizing and draining.
7. The method for preventing and treating a citrus tristeza disease according to claim 6, wherein the root leaching with the organic fertilizer containing potassium fulvate comprises:
diluting the organic fertilizer containing potassium fulvate 300-500 times, and then leaching the roots;
the said agent contains yellow rotThe organic matter content of the organic fertilizer of the potassium acid is at least 45 percent, N, P 2 O 5 And K 2 The total O content is at least 5%.
8. The method for controlling a citrus tristeza according to claim 6, wherein the water application amount is 25-50 kg per plant.
9. The method for controlling a citrus tristeza according to claim 6, wherein the root shower frequency is at least 2 times per year.
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