132 results about "Trichogramma" patented technology

The artificial trichogramma breeding and producing method includes the following steps: 1) producing parasitic egg via selecting and storing Chinese oak silkworm cocoon, heating cocoon, collecting moth, paunching to collect egg, washing egg, sterilizing and drying egg in the air; 2) trichogramma breeding; 3) inoculating trichogramma; 4) laying egg and eliminating adult trichogramma; 5) growing and culturing; 6) selecting product; 7) making trichogramma card; 8) maintaining trichogramma card; and trichogramma card warming to release. The present invention is one optimal trichogramma selecting and breeding technology for producing great amount of high quality trichogramma for biological agricultural pest preventing and controlling.

A trichogramma dispenser comprises a rack and is characterized in that an upper connecting plate and a lower connecting plate are arranged on the rack; an intermediate rotating shaft is arranged on the upper connecting plate and the lower connecting plate and is connected with an upper wheel disc and a lower wheel disc; a circle of longitudinally arranged emitting bins are fixed on the peripheries of the upper wheel disc and the lower wheel disc; a laterally open emitting port is formed in the bottom end of each emitting bin; the intermediate rotating shaft is connected with a rotating motor through transmission gear pairs; shifting pieces are arranged at the emitting ports and are connected onto a rotating shaft of an emitting motor; artificial honeycombs are accommodated in the emitting bins, and a connecting wire is arranged between every two artificial honeycombs. The trichogramma dispenser is loaded on a plant-protection UAV (unmanned aerial vehicle), rapid and accurate dispensing can be realized, the dispensing success rate can be remarkably increased, and the control effect can be remarkably improved.

The present invention discloses a method for breeding Pymeotes scolyti on a large scale and its application method for biologically controlling injurious insects. Said invention selects and uses trichogramma pupa, sulphur pupa, cathay poplar cerambycidae larva and Semanotus bifasciatus (Motschulsky) lana as substitute host and adopts the culture dish and dactylethrae to breed Pymeotes scolyti.

A technology for reproducing trichogramma with gelechiid ova in industrial mode incldues light-shielding vertical raising, automatical collection of mothes, removing dust and impurities and continuous reproduction.

The invention provides a method for breeding trichogramma japonicun ashmead by means of beet armyworm ovums. The method is relatively high in production efficiency and short in breeding period, and is beneficial to scale production of trichogramma japonicun ashmead. The method comprises following steps of 1) producing beet armyworm ova; and 2) breeding trichogramma japonicun ashmead by means of the beet armyworm ova. The trichogramma japonicun ashmea bred artificially are used for controlling agricultural pests which mainly comprise rice-stem borer, yellow rice borer and rice leaf roller. Compared with the prior art, the trichogramma japonicun ashmead artifical breeding production method is advantaged in that beet armyworm can be obtained easily, and can be bred simply; and the method is relatively high in production efficiency and short in breeding period, and is convenient for large-scale breeding, and is beneficial to scale production of trichogramma japonicun ashmead.

The invention discloses a banker plant system for preventing and curing rice leaf folders and rice stem borers. The banker plant system comprises three portions, namely, (1) a vector plant, (2) replacement hosts and (3) a parasitic wasps. The vector plant is vetiver grass belongs to the grass family; the vetiver grass is a luring plant of borers (pink rice borers and the rice stem borers); the replacement hosts are the pink rice borers and the rice stem borers laying eggs in the vetiver grass; the pink rice borers and the rice stem borers are continuously lured to the vetiver grass to lay eggs in a rice growing season to provide hosts for the parasitic wasps; the parasitic wasps are egg parasitic wasps such as rice borer trichogramma and yellow borer trichogramma; the vetiver grass is planted at rice field edges or ridges; 10 to 50 bundles of vetiver grass is planted in every mu of rice field in a dispersion or gathering mode and the bundle distance is from 2m to 3m. The banker plant system for preventing and curing the rice leaf folders and the rice stem borers continuously breeds the parasitic wasps for the rice leaf folders and the rice stem borers (the pink rice borers and the rice stem borers), effectively improves the biological preventing and curing effect, reduces 2 to 3 times of chemical pesticide utilization in one season, is long in acting time, simple and easy to operate and strong in practicability.

The invention discloses an ecological planting and breeding technology of frogs and rice. The production process of the ecological planting and breeding technology of the frogs and the rice is divided into a rice seedling bed managing stage and a land for growing field crops managing stage. No chemical fertilizers and no chemical pesticides are used in the overall process of the rice production technology. The chemical pesticides of rice yields are mainly organic fertilizers such as rape seed cakes. Astragalus smicus is planted as green manure in preceding-crop stage. Insect pests and weeds of the rice fields are prevented by agricultural control, biological prevention and physical control such as breeding the frogs in rice field, releasing trichogramma, placing insecticidal lamps in fields. Biological pesticides of sophocarpidine, azadirachtin and the like are utilized to kill pets for the fields which have serious insect pest damage. Nitrogen fixation blue-green algae can be bred in the fields to control weeds of the fields. Ridge film mulching is used for controlling weeds of the ridges. The ecological planting and breeding technology of the frogs and the rice protects environment, fertilizes soil and produces rice, wherein the rice is rich in nutrition and good in quality. The ecological planting and breeding technology of the frogs and the rice can still guarantee dependable crop of the rice under the condition that no chemical fertilizers and no chemical pesticides are not used in the overall process.

The invention discloses a light environment control method for breeding trichogramma dendrolimi with oak silkworm eggs; the oak silkworm eggs on which the trichogramma dendrolimi are parasitical are adopted as parental eggs, and the fresh oak silkworm eggs on which nothing is parasitical are adopted as progeny eggs; the oak silkworm eggs are controlled to be under a purple light illumination condition; after a parasitic link is over, the parental eggs and the trichogramma dendrolimi are removed; the progeny eggs are placed under a red light illumination condition; after the growth and the eclosion of the trichogramma dendrolimi in the progeny eggs, the trichogramma dendrolimi can continue to serve as bees to repeat the process, so that the population is reproduced generation by generation, and finally a required number of trichogramma groups are finally obtained; and a biological-control finished product is processed. Due to the adoption of the light environment control method for breeding trichogramma dendrolimi with oak silkworm eggs, the parasitic rate of the trichogramma dendrolimi can be improved by 2.25 percent to 11.25 percent, the eclosion rate can be improved by 2.99 percent to 11.04 percent, and the number of identical bees and the legacy bee rate have no significant difference. In multi-generation breeding, the number values are further increased because the population is reproduced generation by generation.

The invention discloses a device for efficiently separating beneficial and harmful insects. The device comprises an insect collecting box, a device base and an internal box, wherein the top of the insect collecting box is provided with a funnel-shaped insect inlet, the wall of the insect collecting box is encircled by a netlike object, and the wall of the internal box is also encircled by a netlike object; the internal box is fixed on the device base in the center of the insect collecting box; and the bottom of the insect collecting box is connected with the upper part of the device base, and a plurality of natural enemy escape holes are formed at the connected position. According to the device, the aims of killing pests and separating beneficial insects are fulfilled by the way that the pests are eaten by natural enemies of the pests, so that the survival rate of the beneficial insects is greatly improved; and eggs laid by lepidoptera insects provide hosts for the propagation of trichogramma, so that the cost of indoor bee propagation is reduced to a great degree. The natural enemy number of the pests in fields is remarkably increased, so that the number of the pests in the fields is effectively controlled, and the use of chemical agents is reduced and even eliminated; and the device is an indispensable professional insect attracting facility for the development of ecological agriculture.

The invention discloses a method for releasing trichogramma bees into a paddy field. The method comprises the steps of low-amount reproduction release, dynamic pest control release and later-period efficiency retention release. According to the method, the field reproduction amount of the trichogramma bees is increased, the vitality of trichogramma bee bodies is improved, the problems of low field reproduction amount of the trichogramma bees, explosive pest damage and poor vitality of the trichogramma bee bodies and the like are solved, the base number of stem borers in the paddy field is reduced, and the dependence on chemical agents is reduced. Therefore, the method is an indispensable green environment-friendly prevention and control method in production of organic paddy rice.

The invention discloses an artificial medium of trichogramma. The artificial medium comprises the following ingredients in mass fraction: 19-40% of insect pupae hemolymph, 17-38% of egg yolk, 10-33% of milk, 4-19% of a Nissl salt solution, 0.8-8% of trehalose, 2-15% of a ganoderan solution with a mass fraction of 5% and 2-15% of a chitosan oligosaccharide solution with a mass fraction of 3.6%. By adopting the artificial medium of trichogramma, the breeding effect of trichogramma is obviously better than that of a traditional artificial medium through the trehalose, the ganoderan solution and the chitosan oligosaccharide solution via effective composition, and the content of insects can be reduced, so that the breeding cost of trichogramma is reduced. Through the artificial medium of trichogramma, trichogramma can be bred by subculturing, no degradation phenomenon exists, and the breeding effect is stable. By adopting the artificial medium of trichogramma, various kinds of trichogramma such as trichogramma dendrolimi, trichogramma confusum, Asian corn borer trichogramma, European corn borer trichogramma and geographical populations thereof can be bred, and good effects are realized.

A method for preventing and eliminating corn borer by using trichogramma releasing box includes such steps as proportionally mixing two kinds of tussah ova containing the parasitic trichogramma and with different developing time, quantitatively packing in boxes, and orderly arranging them in corn field.

The invention discloses a method for preventing and controlling damage of stem borers and relates to the technical field of biological prevention and control of the damage of the stem borers. The method for preventing and controlling damage of the stem borers comprises the following step: releasing a mixture of trichogramma eggs and beauveria spore powder to a target prevention and control area soas to prevent and control target stem borers, wherein the target stem borers are european corn borers or rice stem borers; the mixture released to the target prevention and control area every time per hectare contains 12000-15000 trichogramma eggs and 0.18-0.2g of beauveria spore powder. The method disclosed by the invention has the beneficial effects that by control for the proportion of the trichogramma eggs and the beauveria spore powder, the damage of the stem borers can be effectively controlled, and the use times and the use amount of pesticide and beauveria can be reduced, so that notonly is the labor intensity of farmers reduced, but also the prevention and control cost is reduced, the effects of increasing the yield and the income of the farmers and improving the quality of agricultural products are realized, and the ecological, social and economic benefits are good.

The invention discloses a method suitable for controlling pests by releasing parasitic wasps in a paddy field. A counter-weight is injected into a bearing space of a releasing device, and ova used for breeding the parasitic wasps are put into a host ovum space; then a cover is buckled onto each cup to form a whole body; the release devices containing the parasitic wasps are uniformly thrown into the paddy field and float on the water surface automatically, the parasitic wasps climb out from outgoing holes actively after eclosion of the ova of the parasitic wasps and search pest host ova; when the parasitic wasps are released in the field, operators can throw the release devices with certain weights into the paddy field on ridges of the paddy field instead of going into the paddy field, under the action of gravity, the bottom of each release device falls into the water first, and under the action of buoyancy force of the outer edge of each cup, each release device can not sink underwater, each upper space holding trichogramma can float on the water surface, even a little amount of water enters from the outgoing holes, and the water flows into a lower space containing sand through a funnel-shaped clapboard in each release device; the method can be used for preventing a predatism natural enemy from eating the host ova, can prevent rain and water accumulation, and realizing the mechanized production. The release devices are all made from a corn starch biodegradable material which can be degraded within about six months under natural conditions, and can not pollute the environment.

The invention discloses a method for producing organic fragrant rice by utilizing rice-turtle culture. The method comprises the following concrete steps: (1) selecting a rice field; (2) reforming the rice field; (3) selecting a rice variety; (4) raising rice seedlings; (5) leveling the rice field, and transplanting the rice seedlings; (6) releasing turtles: releasing 300-500 turtles per mu, wherein the male and female proportion is 2:1; (7) feeding the turtles: feeding with feed according to 8-10 percent of the weight of the turtles in 7-10 days after the rice seedlings are transplanted; feeding with the feed according to 4.5-6 percent of the weight of the turtles after the rice seedlings turn green; (8) performing water management on a turtle pool and the rice field; (9) controlling pests and weeds: removing the weeds and the pests by taking the rice-turtle culture mode as the core by arranging a frequency oscillation moth trapping lamp and releasing trichogramma; (10) fertilizing the rice field. According to the method, the yield of the organic fragrant rice can reach 350kg / mu; the quality of the turtles is improved; the economic benefit is high; industrialization is facilitated.

An integrated method for ecologically preventing and eliminating ballworm features the integration of the winter irrigation for eliminating its overwintering pupae, planting corn zone as attraction zone after the cotton is sown, applying sexual attractant in large area for capturing them, use of trichogramma as the natural enemy of ballworm, and applying low-poison efficient agricultural chemical.

The invention discloses an ecological rice-planting frog-breeding method through combination of planting and breeding. The method comprises the following steps: (1) management at a stage of a rice seedling bed; (2) management at a stage of a field; and (3) stocking management of tiger frogs in the rice field. According to the ecological rice-planting frog-breeding method through combination of planting and breeding, no chemical fertilizer and chemical pesticide are applied in the whole process. Adopted fertilizer in the rice field is mainly rapeseed cakes and other organic fertilizer, Astragalus sinicus which is planted in a previous crop is adopted as green manure, and control of pests, diseases and weeds in the rice field is mainly achieved through agricultural control, biological control and physical control, such as frog breeding in the rice field, Trichogramma introducing in the field and insecticidal lamp placing in the field; matrine, azadirachtin and other bio-pesticide are applied to field blocks with serious pests, field weeds are controlled through artificial weeding assisted by nitrogen-fixing cyanobacteria which is bred in the field, and weeds at ridges are controlledthrough film mulching at the ridges. Through the ecological rice-planting frog-breeding method through combination of planting and breeding, environmental protection and field fertilization are achieved, and the produced rice has abundant nutrients and good quality.

The embodiment of the invention discloses a putting system for putting trichogramma honeycombs, and belongs to the technical field of honeycomb putting. According to the technical scheme, the puttingsystem comprises a drone, a putting device is arranged below the drone and comprises a honeycomb storage chamber, the honeycomb storage chamber is fixed below the drone, and a blanking hole is formedin the bottom of the honeycomb storage chamber; a conveying device for conveying honeycombs is arranged below the honeycomb storage chamber, a feeding channel is arranged in one side of the conveyingdevice, an accelerating conveying device for driving the honeycombs to quick move into the feeding channel is arranged between the feeding channel and the conveying device, and an impacting and separating device enabling the honeycombs to be scattered is arranged in the feeding channel. In this way, the problem that an existing method of putting biological honeycombs manually is low in efficiencyand influences the pest prevention and control effect accordingly can be solved.

The invention discloses an unmanned aerial vehicle used for releasing trichogramma for biological control, and belongs to the technical field of unmanned aerial vehicles. The unmanned aerial vehicle is a quad-rotor unmanned aerial vehicle, a GPS navigator, a GPS position indicator, a distance measuring sensor and an air pressure sensor are respectively mounted at the four corners of a center plateof the unmanned aerial vehicle, a releasing device assembly is fixedly connected under the unmanned aerial vehicle, an inner container and an outer container of the releasing device are nested, fixedly connected and sealed by a rubber ring, a baffle plate is arranged between the two containers and movably connected with the two containers, through holes are formed in the two containers and the baffle plate, and an arc-shaped groove is formed in the baffle plate, so that a hollow sphere, with holes, containing trichogrammas is conveniently released. A motor base is fixedly connected with the bottom of the outer container, an output shaft of a motor penetrates through a central hole II of the outer container and is fixedly connected with a central hole I of the baffle plate, and the pressure sensor is fixedly connected with a blind hole of the container II. The unmanned aerial vehicle used for releasing the trichogrammas for the biological control can be used for preventing and controlling rice stem borers in agricultural production, the rice yield can be remarkably improved, labor intensity of workers can be lightened, the size of the releasing device is reduced, the cost of the device is low, and the working efficiency is high.

The invention relates to a device for breeding Trichogramma, which comprises a Trichogramma breeding box, Trichogramma breeding frames and egg carrying boards. The Trichogramma breeding frames are arranged in the Trichogramma breeding box; the egg carrying boards are arranged on the Trichogramma breeding frames; the Trichogramma breeding box comprises a bottom plate, a top plate and side walls; the side walls and the bottom plate are lightproof; one side of the top plate is provided with a light-transmitting board and the other side of the top plate is provided with a lightproof board; guide rails are arranged in the Trichogramma breeding box; and the Trichogramma breeding frames translates below the top plate from the side of the light-transmitting board to the side of the lightproof board by the guide rails. The invention also relates to a method for breeding Trichogramma by the breeding device. The device and the method have the advantages of simple structure, simpleness for operation, high breeding efficiency and improvement on the breeding conditions and belong to the field of insect breeding.

The invention relates to a method for preventing and controlling diseases and pests of sugarcane by combining borer hormonal chip trap devices and trichogramma. The method comprises the following steps of 1, preparation of the trap devices: adding a detergent and clean water into a specialized water basin, uniformly mixing, and fixing a borer hormonal chip on the part 1-2cm away from the water surface by an iron wire; 2, placing of the trap devices: carrying the prepared trap devices to a sugarcane planting base, and placing the trap devices on the flatter sugarcane planting base; 3, preparation of trichogramma keeping devices: using sugarcane sheaths, bamboo shells or larger tree leaves as trichogramma bags, putting trichogramma cards with trichogramma eggs into the trichogramma bags, and binding by ropes; and 4, releasing of the trichogramma keeping devices: putting the prepared trichogramma keeping devices at the back sides of the sugarcane leaves, and enabling openings of the trichogramma keeping devices to face downwards. The method has the advantages that a static preventing and controlling method is adopted, the operation is simple, the novelty and the environment-friendly effects are realized, and the preventing effect is obvious; and compared with the traditional pesticide applying method, a large amount of labors and materials can be saved.

The invention discloses an automatic living-body subpackage-bag-type trichogramma releasing device and a preparation method thereof. The automatic living-body subpackage-bag-type trichogramma releasing device comprises a machine body. The machine body comprises a bracket mechanism and a cabinet mechanism. One side of the bracket mechanism is provided with a plurality of transmission shafts. The transmission shafts are wound by packaging paper. The packaging paper is locked in a forming machine through a hole puncher by the transmission shafts. The hole puncher is communicated with an external air pump. The other side of the bracket mechanism is provided with a discharging device, and the discharging device is communicated with a disc screening machine. The disc screening machine is communicated with a funnel device, and a joining port of the funnel device is extended to the side face of the forming machine and a packaging bag of which the bottom is sealed. The forming machine is stretched into a heat sealing machine. The lower end of the heat sealing machine is provided with an automatic cutting machine. The automatic cutting machine is connected with a chute. The heat sealing machine, the transmission shafts, the hole puncher and the disc screening machine are controlled by a circuit and program control device. According to the provided automatic living-body subpackage-bag-type trichogramma releasing device and the preparation method thereof, the operation is convenient, and the industrial large-scale efficient production is easy.

The invention discloses a spawning and spawn collecting device for moth, and the spawning and spawn collecting device for the moth is composed by a moth cage device and a spawn collecting device. According to the spawning and spawn collecting device for the moth, a moth adult can be put in the moth cage to spawn, when the moth adult completes spawning in the moth cage, the moth cage device is put on the spawn collecting device manually, and the automatic moth spawn collection work is achieved through the spawn collecting machine. The spawning and spawn collecting device for the moth has the advantages that the operating environment for workers is improved greatly, the moth spawn collecting efficiency is improved, the production technical difficulties of trichogramma large-scale expanding propagation are solved, and good basic condition is provided for popularizing biocontrol technology of sugarcane plant. The difficulties that manual moth spawn collecting efficiency is low and the environment is bad are solved, the spawning and spawn collecting device for the moth has the advantages that the manual labor intensity is low, the pollution caused by dust to the environment is small, and the production efficiency is improved; the spawning and spawn collecting device for the moth is suitable for the large-scale production of the trichogramma.

The invention discloses a trichogramma ball releasing device based on an unmanned aerial vehicle. The trichogramma ball releasing device based on the unmanned aerial vehicle comprises the unmanned aerial vehicle and a releasing device; a ball shifting device comprises a cylindrical ball shifting shell; the upper part of the ball shifting shell is open; the opening communicates with a material outlet; a shaft hole and a ball inlet hole are correspondingly formed in the center and eccentric position of a bottom plate of the ball shifting shell; a shifting rod is arranged in the ball shifting shell; a circular hole and a ball outlet hole are correspondingly formed in the center and the eccentric position of a top plate of a ball releasing shell; a movable ball arranging disc is arranged in the ball releasing shell; a semicircular arc shifting opening is formed in the external peripheral edge of the movable ball arranging disc; a ball releasing opening is formed in the eccentric position at the bottom of the ball releasing shell; the ball inlet hole and the ball outlet hole communicate with each other through a caching pipe; a U-shaped shaft coupling is correspondingly fixed on a shifting rod rotating shaft and a movable ball arranging disc rotating shaft so that the shifting rod rotating shaft and the movable ball arranging disc rotating shaft are enabled to synchronously rotate;a steering engine and a control mechanism are connected to form an unmanned aerial vehicle and steering engine control system; and therefore, the workload of operation personnel is reduced, the operation time is shortened, the releasing is accurate, and the releasing speed is high.

The invention discloses an experimental method for using trichogramma to prevent and control sunflower stem borers and an implementation scheme of the experimental method. The experimental method includes dynamic analysis experiments of adult population of the sunflower stem borers, screening of trichogramma species and good strains, screening of advantageous trichogramma dendrolimi good strains and control effect comparison experiments on preventing and controlling the sunflower stem borers in a beekeeping period. The implementation scheme acquired through the experimental method includes variety selection of trichogramma, making of bee cards, and determining of the number of beekeeping, beekeeping quantity, beekeeping time, beekeeping method and beekeeping environment requirements. The experimental method and the implementation scheme thereof have the advantages that the designed technical scheme reaches the domestic advanced level, and considerable economic benefit and obvious ecological benefit are obtained.

The invention discloses a method of interplaning Chinese herbal medicine in a fruit garden. The method comprises the steps that in the first year, radix isatidis is planted between the rows of fruit trees; during the second year to the third year, honeysuckle is planted between the rows of the fruit trees; in the fourth year, bupleurum is planted between the rows of the fruit trees; mentha haplocalyx, ocimum basilicum and marigold are further evenly and fully planted on idle land between the fruit trees and the Chinese herbal medicine according to the planting ratio of 4: 2: 1; artificial propagating trichogramma is put in the fruit garden, the distributed points of the trichogramma putting are required to be uniform, and it is guaranteed that the trichogramma spreads throughout the whole fruit garden. According to the method, through reasonably choosing the Chinese herbal medicine varieties and planting time, both the fruit trees and the Chinese herbal medicine can grow well, and the economic efficiency is greatly improved.

The invention provides a control method of sugarcane borers. The control method includes (1) intercropping, intercropping sugarcane, garlic and soybean in a field, planting two rows of soybeans between the first row and the second row of sugarcane, planting a row of garlic between the second row and the third row of sugarcane and so on, wherein the planting row distance of sugarcane is 90-95 cm, the plant distance of the sugarcane is 40-45 cm, the plant row distance of the soybean is 25-30 cm, the plant distance of the soybean is 15-20 cm, and the plant distance of the garlic is 15-20 cm; (2) setting preformed traps, one trap in every 80-90 square meters; (3) freeing trichogramma, placing one preformed bee freer every 2 to 4 square meters, and installing bee cards in the bee freers, wherein the bee cards comprise twenty trichogramma eggs. Without pesticide, pollution to the soil and the water is avoided, the sugarcane has no pesticide residues and control effect of borers is remarkable.

The invention relates to a trichogramma releasing device. The device is of a hollow structure with a triangular cross section; a line-tying hole (1) is formed at the top of a triangle; an upward recessing groove (3) is arranged at the base side of the triangle along the length direction; and a trichogramma releasing opening (2) is arranged at the raised top surface of the groove. The trichogramma releasing device does not influence the normal trichogramma emerging and releasing, has good ventilation, water tightness and overshadowing effects and is convenient to use and economic and environment-friendly.

The invention discloses a method for biological control over mangrove plants primary pest Aegiceras Chaetognatha tortricidae small leaf rollers. According to the method, trichogramma chilonises are selected as bees, corcyra cephalonica eggs are adopted for carrying out trichogramma breeding in a bee breeding box, then in the middle of April of every year, the mangrove plants primary pest Aegiceras Chaetognatha tortricidae leaf rollers is controlled in the mode that two hundred thousands or more trichogramma chilonises are released per hectare every time, and thirty or more release points are arranged. The trichogramma chilonises which are the natural enemy of the woodland Chaetognatha tortricidae small leaf rollers are used for control over the mangrove plants pest Aegiceras Chaetognatha tortricidae small leaf rollers, the method is natural, free of pollution, convenient to operate and efficient and protects environment, and meanwhile the trichogramma chilonises are bred in quantity. The method for the biological control over mangrove plants primary pest Aegiceras Chaetognatha tortricidae small leaf rollers is easy to operate, environmentally friendly, free of pollution and capable of continuously controlling damage to mangrove plants aegiceras corniculatums by the Chaetognatha tortricidae small leaf rollers, and has good social benefits.

The invention relates to a trichogramma collecting device. The collecting device comprises a bracket, a tray, a cover body, a filter net and an optical sensing device, wherein the tray is connected with the bracket and used for supporting trichogramma and intermediate host eggs; the cover body is arranged above the tray, and a gap is formed between the cover body and the tray; the filter net surrounds the outer sides of the cover body and tray and seals the gap, storage space is formed in the cover boy, the tray and the filter net, the bore diameter of the filter net makes tiny trichogramma able to enter the storage space, the storage space is internally provided with a light source, and the light source is configured to be able to give out light so as to attract trichogramma; the opticalsensing device is configured to turn on the light source when night illumination intensity is sensed and turn off the light source when day illumination intensity is sensed.