61results about How to "Improve insect repellent effect" patented technology

The invention discloses insect-expelling traditional Chinese medicine extract trace element vitamin sustained-release pills for ruminants, and belongs to the technical field of cultivation, the insect-expelling traditional Chinese medicine extract trace element vitamin sustained-release pills comprise insect-expelling pills for releasing insect-expelling traditional Chinese medicines, counterweight pills, a digestion corrosion resistant shell for preventing the sustained-release pills from being quickly dissolved and released, and the insect-expelling pills are embedded in the inner wall of the digestion corrosion resistant shell. The counter weight pill is embedded in the inner wall of one end of the digestion corrosion resisting shell, and the parasite expelling pill comprises the following raw materials: parasite expelling traditional Chinese medicine extract, trace elements, vitamins and extrusion forming materials. The parasite-expelling traditional Chinese medicine extract is prepared by mixing one or more of szechwan chinaberry fruit, azedarach, Chinese torreya, smoked plum, quispualis indica, radix stemonae, betel nut, stone-like omphalia, rhizoma dryopteris crassirhizomae, wild carrot fruit, radix euphorbiae lantu and pumpkin seed according to any proportion. The purpose of expelling parasites for cattle and sheep for 6-9 months can be achieved by feeding the cattle and sheep with sustained-release pills, meanwhile, the requirements of microelements and vitamins are met, the problem of drug resistance is avoided, drug residues are avoided, and the method is labor-saving, safe and environment-friendly.

The utility model discloses an insect-proof type light all-bamboo composite board which comprises a board body, the board body is composed of a face board, an insect-proof board and a base board, and the insect-proof board is arranged between the face board and the base board. The first connecting block is fixed to the left end of the plate body, a fixing strip is arranged on the lower end face of the first connecting block, a second connecting block is fixed to the right end of the plate body, and a limiting groove is formed in the upper end face of the second connecting block. According to the insect-proof type light all-bamboo composite board, the insect-proof board can be closer to the ground where a floor is laid, then the insect-proof effect is improved, the integrity and strength of the composite board are not affected, and the effect of prolonging the service life of the composite board is achieved.

The invention provides a forestry pest control management system and method, and belongs to the technical field of forestry pest control management, and the method comprises the steps: building a pest distribution diagram of a target forestry region through management block division and pest information of the target forestry region, and determining a distribution network of insect repelling points in each management block; determining a plurality of variable insect repelling points according to the recovery rate and the natural recovery rate of each management block in the insect repelling process, and determining a dynamic layout strategy of the insect repelling points in each management block according to all the variable insect repelling points; and through all the distribution networks and all the dynamic layout strategies, predicting an insect repelling controllable range of each management block of the target forestry region, and performing risk assessment on the pest and disease damage of the current target forestry region according to all the insect repelling controllable ranges. According to the scheme, the influence of non-uniform pest and disease distribution in the forestry area on pest and disease control of a forestry area monitoring department can be weakened, so that the control effect of the forestry area monitoring department is improved.

The utility model relates to the technical field of bee breeding, in particular to a bee breeding box capable of preventing insect pests, which comprises a beehive body and an insect prevention water tank which are arranged at intervals from top to bottom, the installation frames are arranged on the two sides of the interior of the insect prevention water tank, the four electric shock supporting mechanisms are arranged on the upper sides of the installation frames and distributed in a rectangular array, the insect prevention base is connected with the upper ends of the four electric shock supporting mechanisms, and the insect prevention base is connected with the lower side of the beehive body; in the breeding box, if insect corpses in the insect prevention water tank are accumulated and are not cleared, or pests break through the physical water surface barrier and climb upwards, the electrified protection barrier can quickly kill the pests and prevent the pests from entering the beehive body, and the insect prevention efficiency is improved.

The present invention belongs to the technical field of flower planting, and provides a flower layered planting device with an insect-proof structure and a method for using the same. The planting device comprises a frame-type structure bracket, a partition is fixedly installed in the bracket, and a plurality of groups of spaced-apart bottom plates are fixedly installed on the bottom surface of the bracket and the partition, so as to solve the technical problem in the prior art that a large number of flowers are exposed at the same time when flowers are operated, resulting in partially exposed flowers being eaten by pests. The present invention protects different flowers through a plurality of groups of first protective mesh covers and second protective mesh covers. When other operations such as fertilizing and branch folding are required for a certain flower subsequently, the second protective mesh cover is rotated by a power component to release the closure of the first protective mesh cover. The present invention can be widely used in crop protection planting operation scenarios.

The present application discloses an oil painting canvas and a preparation method thereof, belonging to the technical field of oil painting canvas. An oil painting canvas comprises a base fabric layer, a primer layer, a middle coat layer, a top coat layer and an ink absorbing layer arranged in sequence; the base fabric layer is pure cotton or polyester-cotton; the top coat layer contains natural Chinese medicines such as arecoline hydrobromide, borneol and camphor with bactericidal, antiviral and insect repellent properties, which ensure the beauty of the oil painting canvas while giving it mildew-proof, antibacterial and insect repellent functions, which is conducive to long-term storage and meets people's diverse needs.

The invention belongs to the technical field of plywood preparation, and discloses plywood with an insect prevention effect and a preparation method of the plywood. The preparation method of the plywood comprises the following steps that after a log veneer is subjected to steaming treatment, a pretreated veneer is obtained; the obtained pretreated veneer is placed in an insect-resist agent solution to be soaked and then dried, and a veneer is obtained; gluing the single surface of the obtained single board, and gluing the glued single board to obtain a wood board blank; and the obtained wood plate blank is subjected to hot pressing and then coated with a flame retardant, and the plywood is obtained. According to the manufacturing method of the plywood, the used auxiliaries do not contain substances harmful to the human body and the environment, and the manufactured plywood has excellent insect prevention performance, flame retardant performance and gluing performance.

The landscaping insect prevention device comprises a bottom supporting frame, the projection of the bottom supporting frame in the overlook direction is in a three-fork star shape, and a secondary telescopic rod is fixedly arranged at one corner of the bottom supporting frame; an L-shaped auxiliary support is fixedly arranged on the top of the second-stage telescopic rod. An insect prevention lamp body is fixedly arranged on the upper portion of the L-shaped auxiliary support, and insect prevention work can be started by operating an external control terminal to send a starting signal to the controller. And the insect-proof lamp body is very effective to clean and maintain. And the brush is fixedly connected with the external rotating part of the pivotal bearing and can stably rotate around the insect prevention lamp body, so that sundries, dust, pest bodies and the like on the outer wall are cleaned in time. By means of the design, normal light emitting and the continuous pest attracting effect of the pest prevention lamp body are guaranteed, and the good pest prevention performance of the device is kept all the time.

The utility model relates to an agricultural seedling pest prevention structure which comprises a mounting plate, a stand column is fixedly mounted at the top of the mounting plate, a top plate is fixedly mounted at the top of the stand column, a positioning mechanism is arranged on the top plate, an ultraviolet lamp is arranged on the positioning mechanism, a transverse plate is fixedly mounted outside the stand column, and the transverse plate is fixedly mounted on the top of the stand column. An insect expelling mechanism is arranged on the transverse plate and comprises a box body, the box body is fixedly connected to the top of the transverse plate, a fan is fixedly installed on the inner top wall of the box body, a box body is placed on the inner bottom wall of the box body, a box door is embedded in the front face of the box body, and through holes are formed in the box body and the box door; insect sticking plates are arranged on the outer portion of the box body and the box door. According to the insect pest prevention structure for agricultural seedling raising, the ultraviolet lamp is installed on the top plate through the positioning mechanism, the insect trapping liquid is placed in the insect repelling mechanism, the insect repelling mechanism and the ultraviolet lamp are used in cooperation, two insect repelling modes are adopted, and the insect repelling effect is improved.

The invention relates to the technical field of crop insect prevention, in particular to an insect prevention device for crop planting. The invention provides an insect prevention device for crop planting. The insect prevention device is convenient to operate and better in insect prevention effect. The insect prevention device comprises a first support, symmetrically-distributed side nets are fixedly connected to the first support, symmetrically-distributed insect prevention nets are fixedly connected to the first support, a second support is fixedly connected to the top of the first support, and symmetrically-distributed sliding frames are slidably connected to the first support. The insect-proof net can be quickly unfolded and folded through mutual cooperation of the sliding frame, the screw rod, the sliding piece and the like, when local area operation is needed, the insect-proof net in the area can be folded only by pulling out the plug pin in the area, great convenience is provided for workers, and meanwhile the work efficiency is greatly improved. And the side edges of all the insect-proof nets can be pressed tightly through the sliding frames, the pull ropes and the sealing pieces, pests are prevented from entering from gaps between the insect-proof nets and the first supports, and the insect-proof effect of the device is improved.

This invention belongs to the field of plant-derived pesticide technology, specifically relating to a method for preparing a juglone microemulsion and its insecticidal activity. The juglone microemulsion comprises juglone, an oil phase, an emulsifier, a co-emulsifier, and water, with the following mass percentage composition: juglone: ​​2.5–10%, oil phase: 5–25%, emulsifier: 5–15%, co-emulsifier: 5–35%, and the balance being water. The mass ratio of the emulsifier to the co-emulsifier is 1:0.5–1:3. The juglone microemulsion of this invention uses plant-derived juglone as the main active ingredient. The prepared juglone microemulsion is an O / W type microemulsion, a clear, stable brown liquid, which can be diluted and directly sprayed onto the leaves of crops to kill and repel insects.

This utility model provides a multifunctional citrus-specific fruit bag, relating to the field of citrus planting technology. It includes a first bag body and a second bag body disposed within the first bag body. The inner side of the first bag body is provided with a mesh bag, and the first bag body has ventilation holes. The bottom of the second bag body has a breathable cotton layer, and the second bag body has breathable micropores. This utility model can improve air permeability while also providing good insect-repellent effects.

The utility model relates to the technical field of garden insect repelling lamps, in particular to a garden insect repelling lamp based on wind-solar complementation, an auxiliary device comprises a first motor, a first fan is fixedly mounted at the output end of the first motor, a rotating shaft is rotatably connected to the surface of one side, away from the first motor, of a U-shaped support, and a second fan is fixedly mounted at one end port of the rotating shaft; a fan blade wheel is fixedly installed at a port of the end, away from the second fan, of the rotating shaft, a U-shaped plate is fixedly installed on the surface of the top of the U-shaped support, a rotating rod is rotationally connected between the inner walls of the two ends of the U-shaped plate, a supporting plate is fixedly installed on the surface of the outer wall of the rotating rod, a photovoltaic panel is fixedly installed on the surface of the supporting plate, and the photovoltaic panel is electrically connected with the first motor. The garden insect-repelling lamp solves the problems that an existing garden insect-repelling lamp adopts an insect-repelling cloth strip to repel insects, the insect-repelling performance of the insect-repelling cloth strip is easy to degrade due to long-time exposure to the wind and the sun, and the insect-repelling cloth strip needs to be replaced discontinuously, so that the use is inconvenient.

The utility model relates to the field of insect repelling facilities, and discloses an insect repelling device for rice planting, which comprises a flat plate, vertical columns are fixed on two sides of the top wall of the flat plate, supporting blocks are fixedly sleeved on outer rings of the columns, vertical sleeves are movably sleeved on outer rings of the columns positioned on the upper sides of the supporting blocks, and springs are fixedly connected with the top ends of the supporting blocks and the bottom ends of the vertical sleeves. A connecting plate is fixed to the side ends, close to each other, of the two vertical sleeves, a vibration motor is fixed to the middle of the top wall of the connecting plate, a power box is fixed to the middle of the bottom wall of the connecting plate, a cylindrical power grid body is electrically installed at the bottom end of the power box, and a collecting box without a top wall is detachably installed on the top wall of the flat plate. According to the electric net, insect bodies remaining on the electric net can be automatically cleaned, the insect killing effect of the electric net can be improved, the situation that a large number of insect bodies block light can be avoided, the number of attracted insects can be increased, the insect repelling effect is good, and the insect bodies can be conveniently collected and eliminated.

The utility model belongs to the field of doors and windows, particularly relates to a door and window screen window with an anti-mosquito function, and provides the following scheme aiming at the problems that after an existing screen window is installed, a gap exists between the screen window and a window frame, mosquitoes easily enter a room, and meanwhile the screen window is large in resistance, not smooth enough in the moving process and prone to being blocked in the moving process. The sliding window comprises a second window frame and a first window frame, the second window frame is arranged on one side of the first window frame, second rectangular grooves are formed in the inner wall of the bottom of the first window frame and the inner wall of the top of the first window frame, glass windows are slidably connected into the second rectangular grooves, and second rectangular grooves are formed in the inner wall of the bottom of the second window frame. Normal movement of the device can be guaranteed through the multiple moving wheels, resistance is reduced, a vertical plate can enter a clamping groove, an arc-shaped plate abuts against one side of a strip-shaped edge groove, it is guaranteed that mosquitoes cannot enter a gap between the mounting frame and the second window frame, and then the insect prevention performance of the device can be greatly improved.

The invention provides a moxibustion auxiliary product and a production process thereof. The moxibustion auxiliary product comprises traditional Chinese medicine components and wormwood powder, and the traditional Chinese medicine components comprise elm powder, bletilla striata powder, medicine powder components, yellow wine and water. The moxa-moxibustion auxiliary product has a high insect prevention effect by utilizing the medicinal powder component, the adhesion between the materials is improved through mold pressurization preparation, the moxa-moxibustion auxiliary product is shaped through drying in the shade and low-temperature drying, the strength of the moxa-moxibustion auxiliary product is improved, and the moxa-moxibustion auxiliary product has a good insect prevention effect. Different materials can be fully utilized to improve the quality of the moxibustion auxiliary product due to the setting of the elm powder, the strength, hardness and adhesion of the moxibustion auxiliary product can be improved due to the addition of the adhesive, so that the moxibustion auxiliary product stably forms a whole, the anti-falling and anti-breaking effects are realized, and the prepared moxibustion auxiliary product has the advantages of simple structure, convenience in operation and the like. Due to the fact that the medicine powder component and the elm powder are added, insects can be effectively prevented, resources can be saved, and the dual effects of moxibustion heating and transdermal moxibustion are achieved.

The application discloses a plant source insect repellent liquid and application thereof, and belongs to the field of plant source insect repellent liquid. The plant source insect repellent liquid comprises the following components in mass percentage: citral 5-9%, sweet orange essential oil 15-25%, emulsifier 10-15%, and the rest is water. The plant source insect repellent liquid has high efficiency and broad spectrum, can have good killing effect on multiple pests such as green worms, borers, fruit flies, aphids, lice, red spiders, shell larvae, thrips and tea green leafhoppers, and can simultaneously prevent and control multiple pests by one-time spraying. When used, the plant source insect repellent liquid only needs to be diluted with water and then sprayed, is simple to operate, and is suitable for large-area popularization and application.

The wickerwork clothes placing cabinet with the insect prevention structure comprises a cabinet body, the front end of the cabinet body is rotationally connected with a cabinet door through a hinge, a hollow pipe is installed on the surface of the inner side of the front end of the cabinet body, an air blowing pipe is embedded in the surface of the hollow pipe, a machine box is installed on the top of the cabinet body, an air pump is installed in the machine box, and the air pump is connected with the cabinet door. A pipe penetrating hole is formed in the top surface of the cabinet body, and an air duct pipe penetrates through the interior of the pipe penetrating hole; through the designed hollow pipe, the blowpipe, the case and the air pump, the hollow pipe provided with the blowpipe is installed on one side of the front end in the cabinet body, the air pump generates airflow, sends the airflow into the hollow pipe, and then blows the airflow out through the blowpipe, so that the airflow forms an air wall, the inside and the outside of the cabinet body are isolated, and the service life of the cabinet body is prolonged. And mosquitoes are effectively prevented from entering the cabinet body when the cabinet body is opened, so that the cabinet has an insect prevention effect.

The utility model discloses an electrical engineering automation power distribution device in the technical field of electrical engineering, comprising a power distribution box, two sides of which are provided with through holes; supporting bearings are arranged on the two sides of the power distribution box correspondingly, connecting cylinders are rotationally connected to the supporting bearings on the two sides correspondingly, and the connecting cylinders communicate with the through holes. First heat dissipation holes are uniformly formed in the outer rings of the connecting cylinders, and second heat dissipation holes are uniformly formed in the sides, away from each other, of the connecting cylinders on the two sides; heat dissipation of the distribution box is not affected through the first heat dissipation holes, the second heat dissipation holes and the through holes, and the driving assembly drives the connecting cylinders on the two sides to rotate, so that the first heat dissipation holes and the second heat dissipation holes rotate along with the connecting cylinders, the difficulty that insects stay on the connecting cylinders is improved, the insects are difficult to enter the first heat dissipation holes and the second heat dissipation holes, and the insect prevention effect is achieved.

The utility model relates to a warehousing equipment technical field especially, relate to a constant temperature warehouse of anti -insect. The utility model provides a kind of can make insect repellent high-efficiency dispersion on shelf, avoid appearing insect repellent dead angle, and can effectively trap flying insects and reptiles, and the constant temperature warehouse of anti -insect of good anti -insect effect. A kind of constant temperature warehouse of anti -insect, including constant temperature warehouse, shelf and connecting frame etc., multiple shelves are placed in constant temperature warehouse, and connecting frame is connected on the left part upper side of shelf. The utility model can adjust the height of trapping frame by fan and the smell of insect repellent emission is blown to shelf, simultaneously by screw rod, switch the trapping mode of flying insects and reptiles, reach can make insect repellent high-efficiency dispersion on shelf, avoid appearing insect repellent dead angle, and can effectively trap flying insects and reptiles, and the effect of good anti -insect effect.

The utility model discloses a screen window with anti -insect function, including two longitudinal frames and two horizontal frames, two horizontal frames set up between two longitudinal frames and, two longitudinal frames opposite both sides all are seted up slide rail, and the clamping of two longitudinal frames has the winding box, is provided with the gauze screen in the winding box, and the one end of gauze screen is installed the pull plate, and the both ends of pull plate are connected with two slide rails slidingly, and the clamping of winding box one end has the baffle, is provided with the liquid storage box in the winding box, and the liquid storage box is provided with the cleaning block, and the cleaning block is in abutment with gauze screen. The utility model discloses through the spring compression of triangular boss inside, makes triangular boss reach the other side of window frame boss, and rotates the knob and drives the threaded rod rotation, and makes the sliding plate slide in the horizontal frame bottom recess, and tightens the knob and makes triangular boss and horizontal frame clamping in window frame and makes it fixed.

This utility model discloses a parasite control device for ostrich farming, belonging to the field of ostrich farming technology. The device includes a drone body and a parasite control mechanism. The parasite control mechanism includes a clamping mechanism installed at the bottom of the drone body. The clamping mechanism includes a base plate, and a shell is provided on the top of the base plate. Limiting claws are driven on both sides of the shell, and a drug spraying component is clamped between the two limiting claws. The drug spraying component includes a spray box, and a nozzle is connected to the bottom of the spray box. The nozzle is positioned corresponding to the ostrich. The drone body drives the drug spraying component to perform aerial operations, which can quickly cover a large farming area, significantly improving parasite control efficiency and saving labor costs. Compared with traditional manual spraying, the operating efficiency can be increased by 3-5 times.

The utility model discloses a household intelligent television cabinet which comprises a cabinet shell, a cabinet door is hinged to the front face of the cabinet shell, the back face of the cabinet door extends into the cabinet shell, an insect expelling mechanism is included, the insect expelling mechanism comprises a supporting frame fixedly connected to the interior of the cabinet shell, and air holes are formed in the two sides of the supporting frame. The bottom of the interior of the cabinet shell is fixedly connected with an electromagnet located in the supporting frame, the top of the electromagnet is movably connected with a storage frame, the top of the storage frame penetrates through the supporting frame and extends out of the cabinet shell, and a mounting groove is formed in the bottom of the storage frame. Through the arrangement of the supporting frame, the air holes, the storage frame, the solid insect repellant and the net plate, gas generated by volatilization of the solid insect repellant is used for repelling insects in the cabinet shell, meanwhile, the storage frame is pushed out of the supporting frame through the electromagnet and the magnet block, workers can supplement the solid insect repellant in the storage frame conveniently, and the work efficiency is improved. And the insect repelling effect of the television cabinet is improved.

The present invention discloses a sofa fabric with an insect-proof function, comprising a fabric body, wherein the fabric body comprises a functional layer, and the functional layer comprises a base layer, and a first insect-proof layer is arranged on the top of the base layer, and the first insect-proof layer comprises a graphene fiber layer and a chitosan fiber layer. The present invention is provided with a functional layer, wherein the first insect-proof layer comprises a double insect-proof effect on the top of the base layer (specifically: the chitosan fiber layer serves as the first insect-proof effect, and the graphene fiber layer serves as the second insect-proof effect after the chitosan fiber layer is damaged), and the second insect-proof layer comprises a double insect-proof effect on the bottom of the base layer (specifically: the bamboo charcoal fiber layer serves as the first insect-proof effect, and the seaweed fiber layer serves as the second insect-proof effect after the bamboo charcoal fiber layer is damaged). Through the cooperation of the above structures, the overall insect-proof effect of the sofa fabric is effectively improved, thereby extending its service life.

The invention belongs to the technical field of feed science and feed additives, and relates to a compound additive for laying hen feed and a preparation method of the compound additive. The compound additive for the laying hen feed is prepared from the following components in percentage by weight: 2 to 10 percent of DHA (docosahexaenoic acid), 2 to 6 percent of hexahydroxy flavone, 2 to 6 percent of herba epimedii total flavonoids, 5 to 15 percent of vegetable jute, 5 to 15 percent of vernonia esculenta, 2 to 10 percent of selenium-containing antioxidant enzyme, 2 to 10 percent of beta-carotene degrading bacteria, 2 to 10 percent of marine oligosaccharide probiotics, 5 to 15 percent of dried danbei powder, 3 to 10 percent of jerusalem artichoke polysaccharide, 3 to 15 percent of functional amino acid and 2 to 10 percent of polyphenol derivatives. The compound additive for the laying hen feed, disclosed by the invention, is added into a basic feed of laying hens, so that the effects of DNA, flavonoids, vegetable jute, vernonia esculenta, the freeze-dried powder of danbei, selenium-containing antioxidant enzyme, probiotics and the like can be fully exerted, the immunity of the laying hens is enhanced, the egg yield is increased, the egg laying interval of the aged laying hens is shortened, the economic value of the aged laying hens is improved, and the laying hens have good economic benefits. The higher-level development of the laying hen breeding industry is promoted.

The invention discloses a solid wood bookshelf with the shelf height capable of being rapidly adjusted, and relates to the technical field of furniture design and manufacturing, the solid wood bookshelf comprises a bookshelf body, a spraying mechanism is arranged at the top of the bookshelf body, a pressurizing mechanism is arranged at the top of the bookshelf body, a drying mechanism is arranged on the side wall of the bookshelf body, and insect prevention liquid in a container is pressurized; the spraying force of the liquid can be increased, so that the insect prevention liquid can be better sprayed to a target site, the coverage area and uniformity of the sprayed liquid are improved, the insect prevention liquid is sprayed to the surface of the solid wood bookshelf, a layer of protective film can be formed on the wood surface, insect attack invasion is prevented, chemical components in the insect prevention liquid can effectively inhibit or kill insect attack, and the insect prevention effect is good. And drying is conducted after insect prevention liquid is sprayed, drying can help the insect prevention liquid permeate into the surfaces and textures of the wood better, and the insect prevention effect is improved.

The invention provides an insecticide for fagaceae plant seeds as well as a preparation method and application thereof, and relates to the technical field of seed insecticides. The insecticide disclosed by the invention is prepared by mixing, crushing and granulating raw materials, wherein the raw materials comprise 70-85 wt.% of effective components and 15-30 wt.% of auxiliaries. The neonicotinoid insecticide is used as a main ingredient, vinblastine is used as a synergist, the insecticidal and insect prevention effects of the insecticide are effectively improved, the dosage of the insecticide is reduced, and the risk that fagaceae plant seeds are damaged by worms is effectively reduced and prevented. The insecticide for the fagaceae plant seeds is efficient, low in toxicity, environmentally friendly and easy to prepare, and has remarkable technical advantages and good application prospects.

The invention relates to the technical field of tea planting, in particular to an efficient and safe tea garden fertilization method capable of stabilizing yield, improving quality and inhibiting pests. The invention provides an annual fertilization scheme for tea trees. The annual fertilization scheme comprises a germination accelerating fertilizer, a spring fertilizer, a summer fertilizer, an autumn fertilizer and a base fertilizer. The fertilizer provided by the invention is reasonable in nutrient element matching, can meet the nutritional requirements of tea trees in different time periods, so that the yield and quality of the tea trees are improved, and the fertilizer has the effect of preventing and treating diseases and insect pests.

The invention relates to the technical field of polypeptide enzymatic hydrolysate, in particular to polypeptide enzymatic hydrolysate for crops and a preparation method thereof.The polypeptide enzymatic hydrolysate for the crops is prepared from, by weight, 30-40 parts of mixed enzymatic hydrolysate and 0.5-3 parts of stabilizer; the mixed enzymatic hydrolysate is soybean meal and diplopod mixed enzymatic hydrolysate, the mass ratio of the soybean meal to the diplopod is (5-15): 1, the soybean meal and the diplopod are used as raw materials of the polypeptide enzymatic hydrolysate provided by the invention, the diplopod has a good parasite expelling effect, and the diplopod polypeptide component subjected to enzymolysis has high permeability, so that the diplopod polypeptide component can be used for preparing the polypeptide enzymatic hydrolysate. The polypeptide can directly penetrate through plant cell walls to be rapidly absorbed by plants, and after being absorbed by the plants, the polypeptide enables the plants to have a certain insect pest resistance effect.