CN113040095A - Method for separating and purifying stiff aphids of aphidiidae - Google Patents

Method for separating and purifying stiff aphids of aphidiidae Download PDF

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Publication number
CN113040095A
CN113040095A CN201911371497.7A CN201911371497A CN113040095A CN 113040095 A CN113040095 A CN 113040095A CN 201911371497 A CN201911371497 A CN 201911371497A CN 113040095 A CN113040095 A CN 113040095A
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aphids
carrier
stiff
aphid
aphidiidae
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CN113040095B (en
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杨进波
张庭发
易小光
杨航
李小东
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Yunnan Gree Biotechnology Co ltd
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
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Abstract

The invention discloses a method for separating and purifying stiff aphids of aphidiidae, which comprises the following steps: (1) preparing a stiff aphid seedling to be separated; (2) preparing a carrier 1; (3) first separation and purification; (4) collecting the purified stiff aphids; (5) continuing to cultivate the carrier 1 material; (6) preparing a carrier 2; (7) separating and purifying for the second time; (8) collecting high-purity stiff aphids; (9) the carrier 2 material was kept on stock. The invention combines the biological characteristics of aphidiidae and aphids, utilizes the transfer of parasitic aphids and aphids due to plant wilting, the residual stiff aphids on the original carrier can be collected and packaged, and the transferred aphids can be continuously raised. The method improves the utilization of materials in the production link, reduces the contents of impurities and empty shells on the stiff aphid product, improves the stiff aphid rate, has small damage to the stiff aphids, is convenient for the transportation and the scattering of the stiff aphids, and is beneficial to the large-scale production, application and commercialization of aphidiidae.

Description

Method for separating and purifying stiff aphids of aphidiidae
Technical Field
The invention relates to the technical field of biological control, in particular to a method for separating and purifying stiff aphids of aphidiidae.
Background
Aphids, commonly known as putties or mealworms, belonging to the order hemiptera, can harm wheat, corn, tobacco, cotton, cabbage, radish, soybean, rape, cabbage, peach, apple, etc., not only ingest leaf sap, but also spread viral diseases, and form sooty mold in large quantities, causing quality degradation. Currently, about 4700 more species are known in the world, and about 1100 species are distributed in china.
The species of aphidiidae is parasitic wasp in vivo of aphid, is a kind of important natural enemy insect, and has been applied to the prevention and treatment of some important aphids. China is the most abundant country of aphidiidae resources, and the main types are: aphidius gifuensis, aphidiidae persicaria persiciforme, aphidiidae paucicostata, sorghum aphidiidae, cotton aphidiidae of sugarcane, wheat aphidiidae, and bird's nest.
At present, in China, the forms of releasing aphidiidae are various, and there are forms of releasing stiff aphid seedlings, such as 201810265683.1 a method for loose releasing aphidiidae and 201821353262.6 a detachable device for releasing the stiff aphid seedlings of the aphidiidae; there are also some forms of throwing stiff aphid leaf collecting cards, such as 201720857192.7 a stiff aphid leaf collecting card of aphidiidae, 201720520478.6 a stiff aphid releasing device of aphidiidae; there are also the modes of feeding stiff aphids, such as 201821274390.1 a hanging type box for storing and releasing stiff aphids.
Stiff aphid seedling only needs simple packing can put in, and the preparation needs the manual work to be collected to stiff aphid blade card, and stiff aphid then needs collect stiff aphid. The method for collecting the stiff aphids mainly comprises manual collection, such as 201720265014.5 tools for simply collecting the stiff aphids of the aphidiidae and 201520602403.3 devices for collecting and releasing the stiff aphids of the aphidiidae; electrically stripping, such as 201520737370.3-a stiff aphid collector of aphidiidae, 201720681749.6-a device for quickly separating stiff aphids and non-stiff aphid state aphids on leaves, 201721061034.7-a hand-held electrically-driven stiff aphid collector; automatic treatment, such as 201811266964.5-a stiff aphid stripping off device, 201811266970.0-a stiff aphid automated processing system, 201520329078.8-a stiff aphid automatic acquisition device, 201811266963.0-a pipelined stiff aphid separation and washing device, 201521040933.X a stiff aphid automatic screening machine, 201810898800.8-a stiff aphid automatic picking machine.
Besides the stiff aphids, the stiff aphids also have the aphids which are not parasitized, dead aphids and the like, and fresh plants are used as carriers, so that the water content is high, the storage and transportation are not tolerant, the commercialization degree is low, and meanwhile, the carrier plants are prevented from spreading diseases to the crops in the scattered area when the stiff aphids are thrown. The stiff aphid leaf collecting card needs to be made manually, is large in manual demand and limited in output, and is not beneficial to commercialized popularization. The stiff aphids are easy to package, convenient to store and transport and beneficial to commercialization popularization.
The stiff aphids are in the pupal stage of the aphidiidae, are living bodies in the dormant stage, are oval, have small size, the radius is more than 0.9-1mm, most of the stiff aphids are attached to the back of the leaf and the position close to the leaf stalk of a carrier plant, and the stiff aphid cocoon wall is easily damaged when the stiff aphids are collected and selected manually or automatically, so that the emergence of the stiff aphids is influenced. Although the prior art has the links of separation and impurity removal, the part of the damaged stiff aphids is not treated, so that the product purity is not high, the control effect is influenced, and the utilization rate of the stiff aphids is low.
In view of the above problems, there is a need for a method for separating and purifying stiff aphids, which can improve the utilization rate of the stiff aphids without damaging the stiff aphids.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for separating and purifying stiff aphids of aphidiidae, which comprises the following steps:
(1) preparing the stiff aphid seedlings to be separated: the used stiff aphid seedlings carry a large amount of obvious parasitic aphids, the apparent parasitic rate is more than or equal to 35 percent, and the stiff aphid rate is 8 to 10 percent.
(2) Preparation of the vector 1: the carrier 1 is 5-6 true leaves, fresh, strong and disease-free tender plant.
(3) First separation and purification: firstly, cutting off the stiff aphid seedlings to be separated, placing the stiff aphid seedlings on a carrier 1, and fully spreading the carrier.
(4) Collecting purified runt aphids: in order to ensure the uniformity of collected stiff aphids, the cut stiff aphid seedlings are collected after 24 hours and stored according to the application;
furthermore, after more than 95% of parasitic aphids and aphids are transferred to the carrier 1, cut stiff aphid seedlings can be collected and stored according to the application.
(5) And (3) continuing culturing the carrier 1 material: and (3) managing a large amount of parasitic aphids and a small amount of aphids remained on the carrier 1 according to the breeding bees, and keeping ventilation by shading management at 9: 00-17: 00 every day except in rainy days.
(6) Preparation of the vector 2: the carrier 2 is more than 4 true leaves, and is a fresh, healthy and disease-free plant.
(7) And (3) second separation and purification: when the residual materials of the carrier 1 are cultivated until the apparent parasitic rate is more than or equal to 50 percent and the stiff aphid rate reaches 60 to 80 percent, the carrier 1 is cut off and placed on the carrier 2 until the carrier is fully paved.
(8) Collecting high-purity stiff aphids: after 24 hours, the cut carrier 1 is collected;
further, about 95% of the stiff aphids remained on the carrier 1, and the stiff aphids can be collected before no more than 1% of the stiff aphids are eclosion, and the stiff aphids are left on the carrier 2 for no more than 24 hours at most.
(9) And (3) continuously feeding the carrier 2 materials: the carrier 2 is provided with aphids and a small amount of parasitic aphids, and can be continuously cultivated or bred into adult aphid braconid bees.
One of the innovation points of the invention is that the stiff aphid leaves with high purity and a clear host plant carrier can be obtained by the treatment of the invention, and the separated aphids can be continuously fed, so that the materials are fully utilized, and the purpose of making the best use of things is achieved without waste.
The second innovation point of the invention is that all the operations do not directly contact the stiff aphids, so that the stiff aphids are damaged to zero, and the influence of the reduction of the emergence rate of the stiff aphids caused by the damage of the cocoon walls of the stiff aphids is avoided.
The carrier 1 can be replaced and adjusted into non-homologous plants according to the crops in the scattered area, so that the pathogen transmission of homologous plants is avoided, and the carrier plants with the stiff aphids can be directly hung on the crops during putting. The carrier plant disease is always a difficult problem which troubles the throwing of the stiff aphid seedlings, and the problem can not be caused by adopting the method.
The invention has the fourth innovation point that the parasitic aphids belong to passive transfer, and can transfer past individuals which are all strong in body, so that the screening is carried out from the source, and the quality of the stiff aphids is improved.
The invention is characterized in that the operation is simple, the stiff aphid seedling is cut off and put on the carrier.
The key technology for obtaining the large-amount high-purity stiff aphids of the aphidiidae is as follows:
1. the breeding technology for the dead aphids has the relatively consistent forming period of the parasitic aphids on the dead aphid seedlings, and when the forming period of the parasitic aphids on the dead aphid seedlings is relatively consistent, the formation of the parasitic aphids to the dead aphids is consistent. Because the parasitic time of the aphidiidae to the aphids lasts for 3-5 days in the large-scale feeding of the aphidiidae, the time for forming a large number of obvious parasitic aphids and stiff aphids in the later period is different, and the most key is to master the feeding technology for forming the relatively consistent parasitic aphids.
2. The second separation and purification is that a large amount of regular stiff aphids are left on the materials after the second separation and purification in the key period of the invention, so the parasitic rate must be more than or equal to 35 percent during the first separation and purification, the stiff aphid rate is 8-10 percent, the proportion is too low, the uniformity of the stiff aphids after the second separation and purification is influenced during the transfer, the proportion is too high, and a small part of stiff aphids eclosion occurs during the second separation and purification.
3. The matching time of the carrier 1 and the stiff aphid seedlings to be transferred needs to be accurate through repeated tests, the carrier 1 with 5-6 true leaves is an optimal material, the number of the true leaves is too small, the carrier can bear the stiff aphids, the number of the true leaves is too large, the carrier leaves are seriously shielded from each other, and the parasitic aphid transfer is not facilitated.
The method has the advantages of simple operation, low cost, high intensification degree, high emergence rate of the obtained stiff aphid product, convenience for large-scale application, industrial production and easiness in popularization.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following examples.
Example 1
A method for separating and purifying stiff aphids of aphidiidae, which comprises the following steps:
(1) preparing the stiff aphid seedlings to be separated: taking a flue-cured tobacco variety msk326 as a breeding carrier, breeding by adopting a seedling breeding method, and sowing the seeds at a density of 576 plants per square meter; when the feeding carrier grows to 3 leaves and 1 heart, selecting a single-plant aphid seedling with the single-plant aphid quantity more than 120 and the actual parasitic rate of 40-60% as a seed aphid, inoculating the single-plant aphid seedling by adopting a releasing and inoculating method according to the aphid inoculating quantity of 3 heads/plant, and enhancing ventilation and light transmission management after inoculating the single-plant aphid seedling; shading management is started 12 days after the aphid source is accessed, except for rainy days, 9: 00-17: 00 every day; 24 days after the aphid source is inoculated, 37.2 heads/plant of aphids, 193 heads/plant of parasitic aphids, 22.8 heads/plant of stiff aphids and 9.01 percent of stiff aphid rate (see table 1) can be obtained, and separation and purification of the stiff aphids of the aphidiidae can be carried out at the moment.
Figure 600121DEST_PATH_IMAGE001
(2) Preparation of the vector 1: and (2) taking flue-cured tobacco variety msk326 as a carrier 1 and planting density of 576 plants per square meter 10 days after sowing in the step 1, managing according to a floating seedling raising technical specification, culturing to 5-6 true leaves, and preparing for separating and purifying the stiff aphids of the aphidiidae.
(3) First separation and purification: firstly, shearing off the base parts of the stiff aphid seedlings which are flush with the stems, closely arranging and fixing the base parts on a nylon rope 1, enabling the orientation of leaves to be consistent, and then placing the base parts on a carrier 1 to ensure that the stiff aphid seedlings are fully paved on the carrier 1; by adopting the method, the carrier on the nylon rope is turned once every 20 minutes during operation, the side with the insect bodies is required to be upward during turning, and most of aphids and parasitic aphids can be transferred after 2 to 3 hours.
(4) Collecting purified runt aphids: and (5) after 24 hours, collecting the feeding carrier on the nylon rope 1, and storing for later use according to the application. At this time, the rate of stiff aphids on the separated and purified stiff aphid seedlings was 81.05% (see table 2), and the rate of stiff aphids on the carrier 1 was 0.00% (see table 3).
Figure 354450DEST_PATH_IMAGE002
Figure 779877DEST_PATH_IMAGE003
(5) And (3) continuing culturing the carrier 1 material: shading management is carried out at 9: 00-17: 00 every day for 3 days continuously, ventilation and normal growth are kept, and the insect situation trends in the period are shown in table 4.
Figure 240946DEST_PATH_IMAGE004
(6) Preparation of the vector 2: and (2) taking flue-cured tobacco variety msk326 as a carrier 2 and planting density of 576 plants per square meter 13 days after sowing in the step 1, managing according to a floating seedling raising technical specification, and culturing to 4-5 true leaves for secondary separation and purification of stiff aphids of aphidiidae.
(7) And (3) second separation and purification: after 3 days of first separation and purification, the situation (shown in table 4) on the carrier 1 is 39.8 heads/plant of aphids, 18.4 heads/plant of parasitic aphids and 145.6 heads/plant of stiff aphids, the rate of the stiff aphids is 72.22%, the carrier 1 is firstly cut off after being aligned with the base of the stem, the base is tightly arranged and fixed on the nylon rope 2, the orientation of the leaves is consistent, and then the carrier 2 is placed on the carrier 2 to be fully paved with the carrier 2; by adopting the method, the carrier on the nylon rope is turned once every 20 minutes during operation, the side with the insect bodies is required to be upward during turning, and most of aphids and parasitic aphids can be transferred after 2 to 3 hours.
(8) Collecting high-purity stiff aphids: the nylon rope 2 was removed after 24 hours, the aphid rate of the carrier 1 fixed on the nylon rope 2 was 96.79% (see table 5), and the carrier was packaged commercially for aphid control.
Figure 857741DEST_PATH_IMAGE005
(9) And (3) continuously feeding the carrier 2 materials: on the carrier 2 (see table 6), 16.8 aphids are planted per plant, 1.1 aphids are parasitic aphids per plant, and the aphids are high-quality aphid seed bee vegetarian wood and are continuously raised for production of stiff aphid seedlings.
Figure 37049DEST_PATH_IMAGE006
Example 2
And (7) second separation and purification: cutting off the leaf of the carrier 1, spreading the carrier 2 with the insect side facing upwards until the carrier is full.
And (8) collecting the high-purity stiff aphids: collecting the carrier 1 leaves after 24 hours, and carrying out commercial packaging for controlling aphids;
the rest is the same as example 1.
Example 3
The flue-cured tobacco variety is msk326, 6 true leaves are cultivated in a pot to be used as a carrier 2, and the rest is the same as the example 2.
Example 4
Step (6) preparation of the carrier 2: 17 days after sowing in the step 1, radish is used as a carrier 2, the planting density is 576 strains per square meter, cultivation is carried out according to the floating seedling technical regulation, and when 5 true leaves are cultivated, the method is used for separating and purifying the stiff aphids of the aphidiidae for the second time;
the rest is the same as example 1.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. A method for separating and purifying stiff aphids of aphidiidae, which is characterized by comprising the following steps:
(1) preparing the stiff aphid seedlings to be separated: the used stiff aphid seedlings carry a large amount of obvious parasitic aphids, the apparent parasitic rate is more than or equal to 35 percent, and the stiff aphid rate is 8 to 10 percent;
(2) preparation of the vector 1: the carrier 1 is 5-6 true leaves, fresh, strong and disease-free tender plants;
(3) first separation and purification: firstly, cutting off the stiff aphid seedlings to be separated, placing the cut stiff aphid seedlings on a carrier 1, and fully spreading the carrier;
(4) collecting purified runt aphids: after 24 hours, collecting the cut stiff aphid seedlings, and storing according to the application;
(5) and (3) continuing culturing the carrier 1 material: managing a large amount of parasitic aphids and a small amount of aphids remained on the carrier 1 according to bee breeding, shading management is carried out every day at 9: 00-17: 00 except for rainy days, and ventilation is kept;
(6) preparation of the vector 2: the carrier 2 is a clear, healthy and disease-free plant with more than 4 true leaves;
(7) and (3) second separation and purification: when the residual materials of the carrier 1 are cultivated until the apparent parasitic rate is more than or equal to 50 percent and the stiff aphid rate reaches 60 to 80 percent, shearing the carrier 1, placing the carrier on the carrier 2 and paving the carrier until the carrier is full;
(8) collecting high-purity stiff aphids: after 24 hours, the cut carrier 1 is collected;
(9) and (3) continuously feeding the carrier 2 materials: the carrier 2 is provided with aphids and a small amount of parasitic aphids, and can be continuously cultivated or bred into adult aphid braconid bees.
2. The method for separating and purifying the stiff aphids of the aphid cocoons according to claim 1, wherein the cut stiff aphids are collected after more than 95% of the parasitic aphids and the aphids are transferred in the step (4), and the cut stiff aphids are placed on the carrier 1 for no more than 24 hours at most.
3. The method for separating and purifying stiff aphids of aphidiidae according to claim 1, wherein about 95% of the stiff aphids remaining on the carrier 1 in step (8) are collected from the cut carrier 1 before no more than 1% of the stiff aphids are eclosion, and the cut seedlings are placed on the carrier 2 for no more than 24 hours at most.
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