CN114097501A - Biological control method for garden plant diseases and insect pests in cold temperate zone - Google Patents
Biological control method for garden plant diseases and insect pests in cold temperate zone Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/02—Stationary means for catching or killing insects with devices or substances, e.g. food, pheronones attracting the insects
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M1/00—Stationary means for catching or killing insects
- A01M1/14—Catching by adhesive surfaces
- A01M1/145—Attracting and catching insects using combined illumination or colours and adhesive surfaces
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/20—Bacteria; Substances produced thereby or obtained therefrom
- A01N63/22—Bacillus
- A01N63/23—B. thuringiensis
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/12—Asteraceae or Compositae [Aster or Sunflower family], e.g. daisy, pyrethrum, artichoke, lettuce, sunflower, wormwood or tarragon
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/24—Lauraceae [Laurel family], e.g. laurel, avocado, sassafras, cinnamon or camphor
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/34—Rosaceae [Rose family], e.g. strawberry, hawthorn, plum, cherry, peach, apricot or almond
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/40—Liliopsida [monocotyledons]
- A01N65/48—Zingiberaceae [Ginger family], e.g. ginger or galangal
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M2200/00—Kind of animal
- A01M2200/01—Insects
- A01M2200/012—Flying insects
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Abstract
The invention discloses a biological control method for garden plant diseases and insect pests in cold temperate regions, and belongs to the technical field of agriculture. The biological pest and disease control method comprises the following steps: irrigating biological agents in the tree sprouting period; pest control: pest control is carried out by combining physical pest control and biological pest control; disease control: disease control is carried out by using a biological disease control means; the biological agent comprises the following components: bacillus thuringiensis, stevia extract, and Salicornia europaea extract. The invention adopts biological agents to irrigate roots, combines means of physical pest control, biological disease control and the like, effectively reduces the incidence of plant diseases and insect pests, eliminates the potential threat of the diseases and insect pests to garden industry, and ensures the sustainable development of the garden industry.
Description
Technical Field
The invention relates to the technical field of agriculture, in particular to a biological control method for garden plant diseases and insect pests in cold temperate regions.
Background
The cold-warm zone refers to the area with accumulated temperature less than 1600 ℃. The coniferous forest in the cold and warm zone is composed of cold-resistant evergreen or deciduous coniferous tree species, and is a forest type with wide distribution area and rich resources. Mainly comprises plants of the genera picea, fir, larch and some hardy pines and cypress. The coniferous forest can adapt to cold, humid or dry climatic conditions, and the coniferous forest in cold and warm zones can be generally divided into two types: one is a cold temperate zone deciduous coniferous forest, and the other is a cold temperate zone evergreen coniferous forest, and the coniferous forest has the functions of forest ecological service, and forest products with various and rich forest species. The natural ecological barrier can resist cold airflow in Siberian and Mongolian plateaus and wind and sand flow and is an important local economic source.
However, for a long time, due to excessive cutting, disorderly cutting and excessive cutting in forest areas, untimely forest updating, large proportion of defective forests and frequent damages or succession of natural forests. The ecological balance is destroyed, and the composition of insects and microflora is changed, which causes great occurrence of certain forest diseases and insect pests; the area of the artificial forest is continuously increased, the selection of forestation places is improper, the forestation quality is low, the tending is lagged, and withered trees, weak trees, various injured and dead joints and cracks provide various invasion ways for diseases and pests; the fallen trees, the dead branches and fallen leaves and the weeds in the forest provide breeding places for pests; the artificial forest has single tree species, simple stand structure, rare vegetation, rich food sources and easy retransmission of insect pests, so that outbreak and disaster formation are caused, and the growth and the lumber of the trees are seriously influenced.
The main methods for preventing and treating garden diseases and insect pests in the prior art are as follows: the pesticide is directly sprayed on the forest, and pests are killed through the toxicity of the pesticide, so that the prevention and the treatment of the diseases and the insect pests of the forest are realized. However, the use of a large amount of chemical pesticides can cause pollution to air, soil and water, poison beneficial organisms and be not beneficial to environmental protection and ecological balance. Therefore, an ecological and environment-friendly method for controlling plant diseases and insect pests is urgently needed.
Disclosure of Invention
The invention aims to provide a biological control method for garden plant diseases and insect pests in cold temperate regions, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: a biological control method for garden plant diseases and insect pests in cold temperate regions comprises the following steps:
(1) irrigating biological agents in the tree sprouting period;
(2) pest control: pest control is carried out by combining physical pest control and biological pest control;
(3) disease control: disease control is carried out by using a biological disease control means;
the biological agent comprises the following components: bacillus thuringiensis, stevia extract, and Salicornia europaea extract.
Further, the preparation of the stevia extract specifically comprises: pulverizing stevia rebaudiana Bertoni leaf, sieving with 100 mesh sieve, adding 10 times of water and 1/5 times of cellulase, heating in 50 deg.C water bath for 2 hr, filtering, extracting the residue with the same method for 1 time, and mixing filtrates to obtain stevia rebaudiana Bertoni extract.
Further, the preparation of the salicornia europaea extract specifically comprises the following steps: crushing salicornia europaea, sieving with a 200-mesh sieve to obtain salicornia europaea powder, and mixing the salicornia europaea powder with petroleum ether in a mass ratio of 1: 50, extracting for 24 hours, collecting extract, filtering, and evaporating to dryness on a rotary evaporator under reduced pressure to obtain black extract, namely the salicornia extract.
Further, the mass ratio of the bacillus thuringiensis to the stevia rebaudiana extractive solution to the salicornia europaea extractive in the biological agent is 1-5: 10-20: 1 to 5.
Furthermore, the biological agent is diluted by 1000-2000 times by water and then is applied, and 10-40 kg of the biological agent is applied to each plant.
Further, the physical control of pests specifically includes: the hanging color plate traps and kills pests, and the hanging trapper containing attractant traps and kills pests.
Furthermore, the hanging color plate specifically comprises: every 100m21 yellow or blue pest sticking plate is hung, the hanging height of the pest sticking plate is 2-3 m, and the length and the width of the pest sticking plate are both 30 cm.
Furthermore, the hanging density of the trapper is 3-5 per mu.
Further, the attractant comprises one or more of ginger essential oil, litsea cubeba essential oil, Chinese rose essential oil and camphor tree essential oil.
Further, the biological control of pests specifically comprises: releasing parasitic wasps and attracting beneficial birds.
Further, the release amount of the parasitic wasps is 1 to 3 ten thousand heads per mu.
Further, the attracting beneficial birds specifically include: before bird breeding activities begin, hanging bird nests, and hanging 1-2 bird nests per mu.
Further, the biological control means for diseases specifically includes: spraying ferrous sulfate solution at the early stage of disease occurrence, and spraying plant extract at the peak period of disease occurrence.
Further, the ferrous sulfate solution accounts for 1-3% by mass.
Further, the plant extract comprises the following raw materials in parts by mass: 20-30 parts of cocklebur, 10-20 parts of Chinese brake herb, 10-18 parts of pomegranate bark, 10-20 parts of Japanese thistle herb, 10-15 parts of szechwan chinaberry bark, 5-10 parts of common cnidium fruit, 5-10 parts of veratrum nigrum, 3-5 parts of lithospermum, 3-5 parts of trifoliate evodia and 2-3 parts of eupatorium fortunei.
Further, the preparation of the plant extract specifically comprises: crushing the raw materials to 100-200 meshes, adding 95% ethanol by volume fraction, leaching for 24-48 h, filtering to obtain an extracting solution, and concentrating the extracting solution under reduced pressure to obtain the plant extract.
Further, the mass ratio of the raw materials to the ethanol is 1: 100 to 300.
Furthermore, the plant extract is diluted by 500-1000 times and then sprayed.
Further, the garden plants include spruce, fir, birch, larch.
Further, the insect pests include insect pests caused by bark beetles, pine moth, coleoptera, aphids.
Still further, the diseases include rust disease, dieback disease, defoliation disease, cancer.
The invention discloses the following technical effects:
the invention adopts biological agents to irrigate roots, combines means of physical pest control, biological disease control and the like, effectively reduces the incidence of plant diseases and insect pests, eliminates the potential threat of the diseases and insect pests to garden industry, and ensures the sustainable development of the garden industry.
The stevia rebaudiana extractive solution contains a large amount of stevioside, the salicornia europaea extractive contains plant salt, flavone, amino acid, vitamins and trace elements, and after the stevia rebaudiana extractive solution and the salicornia europaea extractive are mixed with bacillus thuringiensis, insect pests in soil can be effectively inhibited, and the capability of resisting the insect pests of plants is improved.
The ginger essential oil, the litsea cubeba essential oil, the Chinese rose essential oil and the camphor tree essential oil have good attraction effect on various flying pests, and attract the pests to enter the trapper so as to trap and kill the pests.
The plant extract contains taraxacil, lupulone, xanthatin, sesquiterpene, phytosterol, toosendanin, fructus cnidii, veratrine, shikonin, alkanna, alpha-pinene, furfural and other substances, can enter the interior of a plant after being sprayed, can effectively kill pathogenic bacteria, can prevent and treat pests parasitized on the plant, and has remarkable prevention and treatment effects on plant diseases and insect pests.
Detailed Description
Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.
It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Further, for numerical ranges in this disclosure, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present invention. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.
It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.
As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.
The "parts" in the present invention are in parts by weight unless otherwise specified.
Selecting larch with the age of 10 years as a test object, and adopting a cultivation mode that the row spacing of the larch is 6 multiplied by 4m, the test area is 200 mu, and a land block with relatively heavy pest and disease damage occurs 1 year before the test; the experiment starts in 3 months of each year, wherein 100 mu is used as a test land and divided into 5 areas, each area is 20 mu, the 1 st area corresponds to the embodiment 1, the 2 nd area corresponds to the comparative example 1, the 3 rd area corresponds to the comparative example 2, the 4 th area corresponds to the comparative example 3, the 5 th area corresponds to the comparative example 4, and the rest 100 mu is used as an isolation area for conventional field management.
Example 1
A biological control method for garden plant diseases and insect pests in cold temperate regions comprises the following steps:
(1) and (3) coating the tree trunk with white color at the beginning of 3 months, trimming the tree body, removing dry branches and fallen leaves, and taking the tree out of the orchard for landfill or incineration.
(2) In the sprouting period of the tree from late 3 months to late 4 months, digging an annular ditch 30cm wide and 15cm deep under the crown and 30cm away from the trunk, diluting the biological bactericide by 1000 times to obtain a biological bactericide liquid medicine, uniformly pouring the liquid medicine into the annular ditch, wherein the liquid medicine is 15 kg/plant, and covering with hills after the liquid medicine is infiltrated.
The preparation method of the biological agent comprises the following steps: the mass ratio of the bacillus thuringiensis to the stevia rebaudiana extractive solution to the salicornia europaea extractive solution is 1: 10: 1 to obtain the biological agent after being mixed evenly.
The preparation method of the stevia rebaudiana extractive solution comprises the following steps: pulverizing stevia rebaudiana Bertoni leaf, sieving with 100 mesh sieve, adding 10 times of water and 1/5 times of cellulase, heating in 50 deg.C water bath for 2 hr, filtering, extracting the residue with the same method for 1 time, and mixing filtrates to obtain stevia rebaudiana Bertoni extract.
The preparation method of the salicornia europaea extract comprises the following steps: crushing salicornia europaea, sieving with a 200-mesh sieve to obtain salicornia europaea powder, and mixing the salicornia europaea powder with petroleum ether in a mass ratio of 1: 50, extracting for 24 hours, collecting extract, filtering, and evaporating to dryness on a rotary evaporator under reduced pressure to obtain black extract, namely the salicornia extract.
(3) And (3) carrying out physical pest control from late 4 months to early 10 months:
A. every 100m2Hang 1 yellow mythimna separata board, the height of hanging of mythimna separata board is 2 ~ 3m, and the length and width of mythimna separata board is 30 cm.
B. Hanging 3-5 traps containing attractant per mu; the attractant is prepared from the following components in percentage by mass of 1: 1: 1: 1 mixture of ginger essential oil, litsea cubeba essential oil, Chinese rose essential oil and camphor tree essential oil.
(4) Biological pest control:
A. at the beginning of 3 months, before the bird breeding activity begins, bird nests are hung, 1 bird nest is hung per mu, and the size of a nest box is 22 multiplied by 12 cm.
B. In the last ten days of 5 months to the last 6 months, parasitic wasps are released when the number of pests such as pine caterpillars is 10-20 per plant, and the release amount is 1 ten thousand per mu.
C. And (3) spraying 1000 times of diluted biological fungicide in the step (2) from the first 6 th to the last 6 th of the month when the pest occurrence amount is large.
(5) Biological control of diseases:
A. and spraying a ferrous sulfate solution with the mass fraction of 2% at the early stage of disease occurrence in the early 6 months.
B. And spraying plant extract solution diluted by 500 times in the peak period of disease attack from 7 to 8 months.
The preparation method of the plant extract comprises the following steps: 20 parts of xanthium sibiricum, 10 parts of pteris multifida, 10 parts of pomegranate rind, 10 parts of Japanese thistle herb, 10 parts of szechwan chinaberry bark, 5 parts of common cnidium fruit, 5 parts of veratrum nigrum, 3 parts of lithospermum, 3 parts of trifoliate bitter and 2 parts of eupatorium stone are uniformly mixed and crushed to 100 meshes to obtain mixed powder, and the mass ratio of the mixed powder to 95% ethanol by volume is 1: 100, leaching for 24-48 h, filtering to obtain an extracting solution, and concentrating the extracting solution under reduced pressure to obtain the plant extract.
Comparative example 1
The difference from example 1 is that the biological agents in step (2) and step (4) contain only Bacillus thuringiensis.
Comparative example 2
The difference from example 1 is that the preparation method of the biological agent in step (2) and step (4): extracting the bacillus thuringiensis and the stevia rebaudiana in a mass ratio of 1: 10 to obtain the biological agent after being mixed evenly.
The preparation method of the stevia rebaudiana extractive solution comprises the following steps: pulverizing stevia rebaudiana (Bertoni) Hemsl, sieving with 100 mesh sieve, adding 10 times of water and 1/5 times of cellulase, heating in 50 deg.C water bath for 2 hr, filtering, extracting the residue with the same method for 1 time, and mixing the filtrates to obtain crude extract.
Comparative example 3
The method is the same as example 1, except that the plant extract in the step (5) does not contain xanthium sibiricum, pteris multifida and pomegranate rind.
Comparative example 4
The chemical control method comprises the following steps:
(1) and (3) coating the tree trunk with white color at the beginning of 3 months, trimming the tree body, removing dry branches and fallen leaves, and taking the tree out of the orchard for landfill or incineration.
(2) And in the first 6 th to the last 6 th months, spraying 500 times of diluent of 80% dichlorvos missible oil and 800 times of diluent of 40% omethoate missible oil when the pest occurrence amount is large.
(3) And 7 to 8 months, spraying and diluting 15 percent of powdery rust cleaner 150 times of diluent and 75 percent of chlorothalonil 200 times of diluent in the disease outbreak peak period.
Effect example 1
The control effect of the plant diseases and insect pests was investigated and calculated at the beginning of 9 months, and the results are shown in table 1.
TABLE 1
As can be seen from table 1, pine moth, rust, blight, cancer and tumor can be effectively controlled by the method of example 1 of the present invention, and the control method of the present invention has an equivalent effect to the conventional control method of comparative example 4.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. A biological pest and disease control method for garden plants in cold temperate regions is characterized by comprising the following steps:
(1) irrigating biological agents in the tree sprouting period;
(2) pest control: pest control is carried out by combining physical pest control and biological pest control;
(3) disease control: disease control is carried out by using a biological disease control means;
the biological agent comprises the following components: bacillus thuringiensis, stevia extract, and Salicornia europaea extract.
2. The biological control method according to claim 1, wherein the mass ratio of the bacillus thuringiensis to the stevia rebaudiana extractive solution to the salicornia europaea extractive solution in the biological agent is 1-5: 10-20: 1-5.
3. The biological control method according to claim 1, characterized in that the physical control of pests specifically comprises: the hanging color plate traps and kills pests, and the hanging trapper containing attractant traps and kills pests.
4. The biological control method of claim 3, wherein the attractant comprises one or more of ginger essential oil, litsea cubeba essential oil, rose essential oil, camphor tree essential oil.
5. The biological control method according to claim 1, characterized in that the biological control of pests specifically comprises: releasing parasitic wasps, attracting beneficial birds and spraying biological inoculants.
6. The biocontrol method of claim 5, wherein the parasitic wasps are released in an amount of 1 to 3 million heads per acre.
7. The biological control method according to claim 5, characterized in that said recruiting a beneficial bird comprises in particular: before bird breeding activities begin, hanging bird nests, and hanging 1-2 bird nests per mu.
8. The biocontrol method of claim 1, characterized in that said means for biocontrol of diseases specifically comprise: spraying ferrous sulfate solution at the early stage of disease occurrence, and spraying plant extract at the peak period of disease occurrence.
9. The biological control method according to claim 8, characterized in that the percentage by mass of the ferrous sulfate solution is 1% to 3%.
10. The biological control method according to claim 8, wherein the plant extract comprises the following raw materials in parts by mass: 20-30 parts of cocklebur, 10-20 parts of Chinese brake herb, 10-18 parts of pomegranate bark, 10-20 parts of Japanese thistle herb, 10-15 parts of szechwan chinaberry bark, 5-10 parts of common cnidium fruit, 5-10 parts of veratrum nigrum, 3-5 parts of lithospermum, 3-5 parts of trifoliate evodia and 2-3 parts of eupatorium fortunei.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105076087A (en) * | 2015-09-30 | 2015-11-25 | 柳州市园林科学研究所 | Environment-friendly preventing and controlling method of diseases and pests of garden plants |
| CN113207910A (en) * | 2021-05-17 | 2021-08-06 | 新疆林科院经济林研究所 | Method for preventing and treating walnut virus diseases |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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