CN108669024A - Citrus psylla control equipment and method - Google Patents

Abstract

The invention relates to equipment and methods for preventing and controlling citrus psyllids. The equipment includes an egg-laying mechanism and a light trapping mechanism. The egg-laying mechanism includes a carrier, and the carrier includes a root. A carrier blade is connected to one side of the root. The length of the carrier is L. 0<L<10mm. The other side of the root is connected with a bearing installation part. The light trapping mechanism is provided with a purple light lamp, and the wavelength range of the purple light produced by the purple light lamp is 390nm-405nm. The method includes several of the citrus psyllid control devices described above. The present invention is designed on the basis of a large number of experiments and the conclusion that the citrus psyllid tends to lay eggs on shoots larger than 0 and less than 10mm and that the sensitive spectrum of the citrus psyllid is 390nm-405nm purple light. The carrier with a length greater than 0 and less than 10mm, which is used to replace citrus buds for citrus psyllids to lay eggs, combined with 390nm-405nm purple light to trap and kill citrus psyllids, can have a very good effect on preventing citrus psyllids.

Description

Equipment and methods for citrus psyllid control

technical field

The invention relates to the technical field of plant protection, in particular to a citrus psyllid control device and method.

Background technique

The citrus psyllid is one of the important pests in citrus production, and it is the carrier of citrus huanglongbing in Asia and America. Citrus huanglongbing is the primary problem in citrus planting industry, which has caused serious economic losses to fruit farmers and seriously hindered the development of citrus industry. Citrus huanglongbing is mainly transmitted in the field by adults of citrus psyllids. The control methods of citrus psyllid include: chemical method, biological method and physical method.

The chemical method is: spraying chemical pesticides, but spraying chemical pesticides will pollute the field soil and water resources, and will also cause pests to become resistant to pesticides.

The biological method is: releasing parasitoids, but the parasitoids need to be specially reared and released in the field.

The physical method is to use the phototaxis of insects to trap and kill insects through insect lamps, but because the sensitive spectral range of citrus psyllids is not known at present, the effect of trapping and killing by lights is relatively poor.

Therefore, the existing chemical methods, biological methods and physical methods cannot achieve a good effect of controlling citrus psyllids.

Contents of the invention

The technical problem to be solved by the present invention is to provide a citrus psyllid control device and method with good control effect.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A citrus psyllid control device, comprising:

The egg-laying mechanism includes a carrier, the carrier includes a root, and a bearing blade is connected to one side of the root, and the length of the carrier is L, 0<L<10mm; on the other side of the root Connected with a bearing installation part;

The light trapping mechanism is provided with a purple light lamp, and the wavelength range of purple light generated by the purple light lamp is 390nm-405nm.

Preferably, the wavelength range of the purple light generated by the purple light lamp is 395nm-400nm.

Preferably, there are multiple bearing blades, and the inner ends of the multiple bearing blades are all connected to the root.

Preferably, the edge of the bearing blade is a curve, and the surface of the bearing blade is a curved surface.

Preferably, there are gaps between the plurality of carrying blades and the outer ends are gathered together.

Preferably, the bearing installation part includes two load-bearing clamping pieces arranged oppositely, which can be opened under the action of tension and relatively close after the tension is removed.

Preferably, a main pole is further included, and one end of the main pole is provided with a pole installation part.

Preferably, the pole installation part includes two oppositely arranged pole clamping pieces that can be opened under the action of tension and relatively close after the tension is removed.

The advantage of the citrus psyllid prevention and control equipment of the present invention is: the prior art does not disclose and does not know what kind of relationship exists between the citrus psyllid's oviposition and the citrus tender shoots, and what kind of developmental state the citrus psyllid prefers. The sensitive spectral range of the citrus psyllid is not disclosed in the existing technology, and the citrus psyllid control equipment of the present invention is based on a large number of experiments and it is concluded that the citrus psyllid tends to lay eggs on shoots greater than 0 and less than 10mm And it is designed on the basis that the sensitivity spectrum of citrus psyllid is 390nm-405nm purple light. The length of the carrier body of the present invention is greater than 0 and less than 10mm, and its structure is similar to citrus psyllids, so after installing several carriers in the citrus grove, it can replace citrus buds and become the spawning ground of citrus psyllids, thereby reducing citrus psyllids Laying eggs on citrus trees, combined with 390nm-405nm purple light to trap and kill citrus psyllids, can have a very good effect on the control of citrus psyllids.

A method for preventing and controlling citrus psyllids, comprising a plurality of above-mentioned citrus psyllid control devices, and distributing a plurality of ovipositing mechanisms and a plurality of light trapping mechanisms in a citrus grove.

Preferably, the citrus psyllids on the citrus psyllid control equipment are cleaned regularly, and after cleaning, several egg-laying mechanisms and several light trapping mechanisms are redistributed in the citrus grove.

The advantage of the citrus psyllid control method of the present invention is that the prior art does not disclose and does not know what kind of relationship exists between the citrus psyllid's oviposition and the citrus psyllid and what kind of developmental state the citrus psyllid prefers. The sensitive spectral range of the citrus psyllid is not disclosed in the prior art, and the citrus psyllid control method of the present invention is based on a large number of experiments and results that the citrus psyllid tends to lay eggs on shoots greater than 0 and less than 10mm And it is designed on the basis that the sensitivity spectrum of citrus psyllid is 390nm-405nm purple light. The length of the carrier body of the present invention is greater than 0 and less than 10mm, and its structure is similar to citrus psyllids, so after installing several carriers in the citrus grove, it can replace citrus buds and become the spawning ground of citrus psyllids, thereby reducing citrus psyllids Laying eggs on citrus trees, combined with 390nm-405nm purple light to trap and kill citrus psyllids, can have a very good effect on the control of citrus psyllids.

Description of drawings

Fig. 1 is a structural schematic diagram of an oviposition mechanism of a citrus psyllid control device according to an embodiment of the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The experimental process for studying the relationship between citrus psyllid eggs and citrus buds is as follows:

Field investigation: From August 2016 to January 2018, four sites in Zijin (23°60′N, 115°12′E) and Huaiji (23°90′N, 112°11′E) in Guangdong Orchards were monitored for citrus psyllids. Using the five-point survey and sampling method, the orchard is divided into five areas, and two trees with similar age and growth are selected in each area. 3 branches with buds (the length of the branches is about 25cm). The cut citrus branches were marked, placed under a stereo microscope to observe, and the number, length and number of citrus psyllid eggs on each citrus branch were counted.

Oviposition preference of citrus psyllids on the buds of Shatangju in different developmental states:

Prune the three-year-old, similar-growing Shatangju saplings in the greenhouse to make them sprout new shoots. Place 3 Shatangju saplings in the net cage (the length, width and height are 40cm×40cm×60cm), and unexpanded (length 0-5mm) and half-expanded (length 5-10mm) are evenly distributed on these plants. , fully expanded (length > 10mm) young shoots and new leaves, the number of each kind of new shoots and new leaves shall not be less than 20. Collect citrus psyllid females whose abdomen is orange and are in the oviposition period (the citrus psyllid females in the oviposition period are confirmed by the macro lens of the mobile phone). Put the collected citrus psyllid females in the spawning period into the net cage, put 10 heads in a single net cage, collect all the buds and new leaves of tangerine tangerine after 24 hours, observe and record the citrus psyllid under the stereoscope Spawning situation. The experiment was repeated 3 times.

See Table 1 for the number of single-bud seedlings and the single-bud seeding rate of four orchards in Zijin and Huaiji, Guangdong.

Table 1 Oviposition of citrus psyllids on field citrus shoots and young leaves

The survey found that in the four orchards, no eggs of citrus psyllids were found on the new leaves, and the number and rate of eggs were 0. Citrus psyllid females lay eggs on citrus shoots, the shoots larger than 0 and smaller than 5mm have the highest oviposition rate, followed by the shoots larger than 5mm and smaller than 10mm. In the 4 orchards, the egg implantation rate of unexpanded buds larger than 1mm and less than 5mm was higher than 40%, and the egg implantation rate of Huaiji No. 2 orchard was as high as 72.97%. It shows that in the field, when there are shoots and new leaves at the same time, citrus psyllids will lay eggs on citrus shoots, especially tend to lay eggs on shoots larger than 0 and smaller than 10mm.

Table 2 Oviposition of citrus psyllid females on the shoots and new leaves of Shatangju

When the new leaves and sugar tangerine shoots were fed at the same time for the citrus psyllid females to lay eggs, the citrus psyllid females did not lay eggs on the new leaves. There was no significant difference in the amount of eggs deposited by citrus psyllids on shoots greater than 0 and less than 5.00mm and greater than 5.01 and less than 10.00mm, but they were all higher than those on shoots and new leaves of 10.00mm. It shows that the citrus psyllid tends to lay eggs in the shoots of Shatangju which are larger than 0 and smaller than 10mm.

Experimental conclusion: citrus psyllid females tend to lay eggs on citrus shoots that are wrapped and not fully unfolded, and most of them lay eggs on shoots with a length greater than 0 and less than 10 mm.

The experimental procedure for studying the sensitive spectral range of citrus psyllids is as follows:

According to the behavior characteristics of citrus psyllid, a phototaxis behavior response device of citrus psyllid was designed and manufactured. The experimental device is divided into four parts, which are light source room, phototaxis room and insect releasing room. The device is composed of 4 large cartons and a small carton. The carton is made of 3mm kraft cardboard, which is pasted and fixed with UFO glue. There are 5 sides of the light source room made of kraft cardboard, and one side is left untreated to avoid affecting the light source. As a result, the phototaxis chamber also has 5 sides as cardboard, and one side is sealed with a light-transmitting film to collect citrus psyllids. The light source chamber is located at both ends, and there is a small hole cone above the centerline of the outermost surface for placing the light source. The light source room is connected to the phototaxis room, and a groove with a length, width and height of 20cm, 10cm, and 10cm is dug in the center above the splicing connection of the two phototaxis rooms as the insect release room. The two ends of the insect release room are left empty and connected to the light source. relatively. There is a cover plate on it. During the test, the entire test device is covered with black cloth to shield the influence of external light sources. Put purple light (395-400nm) and green light (520-530nm) LED lamps with power of 0.06W in the light source box, place the prepared citrus psyllids in the habitat, then turn on the light source, and stimulate them for 10 hours. Finally, record the number of tested insects at both ends of the phototaxis chamber, and calculate the phototaxis rate. 60 heads were treated each time, repeated 3 times.

Experimental conclusion: citrus psyllids have obvious positive tendency to purple light with a wavelength of 390nm-405nm, especially purple light with a wavelength of 395nm-400nm.

The prior art does not disclose and does not know what relationship exists between the citrus psyllid's oviposition and the citrus buds, and which developmental state the citrus psyllid prefers. The prior art does not disclose and does not know the citrus psyllid's Sensitive spectral range, the citrus psyllid control equipment of the present invention is after a large number of experiments and draws that citrus psyllid tends to lay eggs on shoots greater than 0 and less than 10mm and draws that the sensitive spectrum of citrus psyllid is 390nm- Designed on the basis of 405nm violet light. On the basis of the above experiments, the citrus psyllid control equipment and method of the present invention will be described in detail below in conjunction with accompanying drawing 1 .

A kind of citrus psyllid control equipment

Example 1

The present embodiment citrus psyllid control equipment includes an oviposition mechanism and a light trapping mechanism. The oviposition mechanism includes a carrier 10, and the carrier 10 includes a root 14, and a bearing blade 12 is connected to one side of the root 14. The length of the carrier 10 is L, 0<L<10mm. The other side of the root portion 14 is connected with a load mounting portion 20 . The light trapping mechanism is provided with a purple light lamp, and the wavelength range of the purple light generated by the purple light lamp is 390nm-405nm.

Preferably, the wavelength range of the purple light generated by the purple light lamp is 395nm-400nm.

Preferably, there are multiple bearing blades 12 , and the inner ends of the multiple bearing blades 12 are all connected to the root 14 . Preferably, the edge of the bearing blade 12 is a curve, and the surface of the bearing blade 12 is a curved surface. Preferably, there are gaps between the plurality of carrier blades 12 and the outer ends converge on each other. The structure of the bearing blade 12 is similar to that of citrus buds, which helps to increase the probability of citrus psyllids laying eggs on the bearing blade 12 .

Preferably, the bearing mounting part 20 includes two bearing clamping pieces 22 arranged oppositely, which can be opened under the action of a tension force and relatively close to each other after the tension force is removed. The carrier clips 22 allow the carrier 10 to be removably mounted on a citrus tree. Preferably, a load-bearing elastic pad 30 is provided on the opposite surfaces of the two load-bearing clamping pieces 22, and the function of the load-bearing elastic pad 30 is to prevent the load-bearing clamping pieces 22 from pinching the branches of the citrus tree.

After some carriers 10 are installed on the citrus trees, the carriers 10 can replace the citrus buds and become the spawning grounds of the citrus psyllids. Body 10 is removed from the citrus tree.

The advantage of the citrus psyllid control equipment of the present invention is: the length of the carrier of the present invention is greater than 0 and less than 10mm, and its structure is similar to that of citrus buds, so that after several carriers are installed in the citrus grove, it can replace the citrus buds to become citrus The spawning grounds of psyllids, thereby reducing citrus psyllids to lay eggs on citrus trees, combined with 390nm-405nm purple light to trap and kill citrus psyllids, can play a very good role in preventing and controlling citrus psyllids.

Example 2

The present embodiment citrus psyllid control equipment includes an oviposition mechanism and a light trapping mechanism. The oviposition mechanism includes a carrier 10, and the carrier 10 includes a root 14, and a bearing blade 12 is connected to one side of the root 14. The length of the carrier 10 is L, 0<L<10mm. The other side of the root portion 14 is connected with a load mounting portion 20 . The light trapping mechanism is provided with a purple light lamp, and the wavelength range of the purple light generated by the purple light lamp is 390nm-405nm.

Preferably, the wavelength range of the purple light generated by the purple light lamp is 395nm-400nm.

Preferably, there are multiple bearing blades 12 , and the inner ends of the multiple bearing blades 12 are all connected to the root 14 . Preferably, the edge of the bearing blade 12 is a curve, and the surface of the bearing blade 12 is a curved surface. Preferably, there are gaps between the plurality of carrier blades 12 and the outer ends converge on each other. The structure of the bearing blade 12 is similar to that of citrus buds, which helps to increase the probability of citrus psyllids laying eggs on the bearing blade 12 .

Preferably, the bearing mounting part 20 includes two bearing clamping pieces 22 arranged oppositely, which can be opened under the action of a tension force and relatively close to each other after the tension force is removed. Preferably, a load-bearing elastic pad 30 is provided on opposite surfaces of the two load-bearing clamping pieces 22 . The bearing elastic pad 30 is used to increase the friction between the bearing clamping piece 22 and the main pole 40 and the branch pole 50 to improve the reliability of the connection.

Preferably, the citrus psyllid control device of this embodiment further includes a main pole 40 , and one end of the main pole 40 is provided with a pole installation part 60 . Preferably, the main pole 40 is provided with a branch pole 50 . Preferably, the pole installation part 60 includes two opposite pole clamping pieces 62 that can be opened under the action of tension and relatively close after the tension is removed. Preferably, a pole elastic pad 70 is provided on the opposite surface of the pole clamping piece 62 . The effect of the pole elastic pad 70 is to prevent the pole clamping sheet 62 from pinching the branches of the citrus tree.

First some carriers 10 are installed on the main pole 40 and the branch pole 50, then the main pole 40 is installed on the citrus tree, the carrier 10 can replace the citrus buds and become the spawning ground of the citrus psyllid, the carrier 10 After a certain amount of citrus psyllid eggs have accumulated on the carrier blades 12 of the citrus tree, the main strut 40 can be removed from the citrus tree.

The advantage of the citrus psyllid control equipment of the present invention is: the length of the carrier of the present invention is greater than 0 and less than 10mm, and its structure is similar to that of citrus buds, so that after several carriers are installed in the citrus grove, it can replace the citrus buds to become citrus The spawning grounds of psyllids, thereby reducing citrus psyllids to lay eggs on citrus trees, combined with 390nm-405nm purple light to trap and kill citrus psyllids, can play a very good role in preventing and controlling citrus psyllids.

A method for preventing and controlling citrus psyllids, comprising several citrus psyllids control equipment of the above-mentioned embodiment 1 or embodiment 2, and distributing several egg-laying mechanisms and several light trapping mechanisms in the citrus grove. Preferably, the citrus psyllids on the citrus psyllid control equipment are cleaned regularly, and after cleaning, several egg-laying mechanisms and several light trapping mechanisms are redistributed in the citrus grove.

The advantage of the citrus psyllid control method of the present invention is that the length of the carrier of the present invention is greater than 0 and less than 10mm, and its structure is similar to that of citrus buds, so that after several carriers are installed in a citrus grove, they can replace the citrus buds and become citrus psyllids. The spawning grounds of psyllids, thereby reducing citrus psyllids to lay eggs on citrus trees, combined with 390nm-405nm purple light to trap and kill citrus psyllids, can play a very good role in preventing and controlling citrus psyllids.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. A citrus psyllid control device, characterized in that it comprises: The egg-laying mechanism comprises a carrier (10), and the carrier (10) includes a root (14), and a bearing blade (12) is connected to one side of the root (14), and the carrier (10) The length is L, 0<L<10mm; the other side of the root (14) is connected with a load-bearing installation part (20); The light trapping mechanism is provided with a purple light lamp, and the wavelength range of purple light generated by the purple light lamp is 390nm-405nm. 2. The citrus psyllid control equipment according to claim 1, characterized in that the wavelength range of the purple light produced by the purple light lamp is 395nm-400nm. 3. citrus psyllid control equipment according to claim 1, is characterized in that, the quantity of described bearing blade (12) has multiple, and the inner end of a plurality of bearing blades (12) is all connected on the root (14) . 4. The citrus psyllid control device according to claim 3, characterized in that, the edge of the bearing blade (12) is a curve, and the surface of the bearing blade (12) is a curved surface. 5. The citrus psyllid control device according to claim 4, characterized in that there are gaps between the plurality of bearing blades (12) and the outer ends are gathered together. 6. The citrus psyllid control device according to claim 1, characterized in that, the load-bearing installation part (20) includes two oppositely arranged, which can be opened under the action of tension and relatively close after the tension is removed. Carrying clamping piece (22). 7. The citrus psyllid control equipment according to claim 1, characterized in that it further comprises a main pole (40), and one end of the main pole (40) is provided with a pole installation part (60). 8. The citrus psyllid control equipment according to claim 7, characterized in that, the pole installation part (60) comprises two oppositely arranged, can be opened under the action of tension and relatively close to each other after the tension is removed. pole clamp (62). 9. A citrus psyllid control method, characterized in that it comprises several citrus psyllid control equipment as claimed in any one of claims 1-8, and several egg-laying mechanisms and several light trapping mechanisms are distributed in the citrus grove. 10. The citrus psyllid control method according to claim 9, characterized in that the citrus psyllids on the citrus psyllid control equipment are cleaned regularly, and after cleaning, some spawning mechanisms and some light trapping mechanisms are redistributed in the citrus groves middle.