943 results about "Trapping" patented technology

The invention relates to a gas trapping system, method and device, computer equipment, a readable storage medium and a program product, and relates to the field of gas trapping. Comprising first gas trapping equipment, second gas trapping equipment and control equipment, the first gas trapping equipment is used for trapping impurity components; the impurity components refer to components influencing the degradation of the absorbent; the second gas trapping equipment is connected with the first gas trapping equipment and is used for trapping target gas; the control equipment is respectively connected with the first gas trapping equipment and the second gas trapping equipment, and is used for controlling the first gas trapping equipment to use a first absorbent to trap impurity components in the input gas source under the condition that the impurity components exist in the input gas source, so as to obtain a pretreated gas source; and controlling the second gas trapping equipment to use the second absorbent to trap the target gas in the pretreatment gas source. By adopting the method, the gas trapping cost can be reduced.

The invention discloses a pepper field prodenia litura adult trapping and killing device and method. The pepper field prodenia litura adult trapping and killing device comprises an AI adult prediction system, an insect trapping device, a high-voltage power grid killing device, an insect corpse collecting device and an energy supply device. The AI adult prediction system is in communication connection with the insect trapping device and is used for monitoring prodenia litura adults in real time and sending a starting signal to the insect trapping device; the insect trapping device carries a prodenia litura sex attractant and is used for releasing the prodenia litura sex attractant to trap adults of prodenia litura after receiving the opening signal; the high-voltage power grid killing device is used for killing adults through cooperation of contact electric shock and air electric shock; the insect corpse collecting device is arranged below the high-voltage power grid killing device and is used for collecting killed insect corpses; the energy supply device is electrically connected with the AI adult prediction system, the insect trapping device and the high-voltage power grid killing device and supplies power to all electric components. Non-chemical, accurate, environment-friendly and efficient trapping and killing of the prodenia litura adults in the pepper field and stable and long-acting operation of the device are realized.

A mosquito trapping machine comprises a carbon dioxide reaction device and a trapping device. The carbon dioxide reaction device comprises a reaction shell, a reaction barrel, an electrolytic reaction piece and an electric control assembly. The capturing device comprises a capturing shell, a capturing box and a capturing fan. An air inlet in the capture shell faces a port of the reaction barrel, the capture shell is fixed to the reaction shell through a connecting piece, a capture space is formed between the capture shell and the reaction shell, and airflow generated by the capture fan sucks carbon dioxide gas emitted from the port of the reaction barrel into the capture box and then enters the capture shell through the ventilation net. And the air is further radially blown out through the air outlet. According to the embodiment of the utility model, carbon dioxide gas is introduced into the capture shell, 360-degree all-dimensional diffusion is realized by utilizing the air outlets formed in the periphery of the outer wall of the capture shell, and the carbon dioxide gas forms a uniform gas diffusion area around equipment by utilizing the suction of the fan and combining the guide of the air outlets; effective suction and capture of mosquitoes within a certain range with the equipment as the center are guaranteed.

The present application relates to the field of plant pest control, and provides a plant pest control device. The plant pest control device comprises a liquid storage mechanism, a trapping mechanism and a dredging mechanism, wherein the trapping mechanism is connected with the liquid storage mechanism, and the dredging mechanism is fixedly connected above the liquid storage mechanism. When the device is used continuously, the mosquito corpses in the filter cartridge need to be recovered, the rotating drum is rotated, the sealing plate is slid in the clamping groove to the sliding groove, the mounting sleeve and the filter cartridge are disassembled, the residual mosquito corpses in the filter cartridge are pushed out, the overall disassembly steps are simple, only the mosquito corpses in the filter cartridge need to be squeezed out, the device can be used again, the squeezed mosquito corpses can be used as fertilizer, the difficulty of device maintenance is reduced, the protection of the external sealing shell can maximize the reduction of the damage of the internal equipment of the device, and the safety of the device during use is ensured.

The utility model discloses an octopus trapping and recycling device, which belongs to the technical field of octopus trapping and comprises a trapping device and a recycling device, the trapping device comprises a plurality of trapping tanks, a trapping rope and fish-shaped octopus hooks, the trapping tanks are arranged on the trapping rope, the trapping tanks are made of transparent materials, and the recycling device is made of transparent materials. The fish-shaped octopus hook is dragged at the bottom end of the interior of the trapping tank, a plurality of water leakage openings are formed in the bottom of the trapping tank, the recycling device is installed on a boat side of a fishing boat, and the trapping rope recycles the trapping tank through the recycling device and takes out octopus from the trapping tank. Octopus is attracted into the trapping tank through the fish-shaped Octopus hook, and the soft hook on the fish-shaped Octopus hook prevents the Octopus from escaping from the trapping tank; during recovery, the trapping rope is pulled, the trapping rope enables the main pipe to rotate on the supporting shaft, and pulling is easier; the tank opening of the trapping tank is clamped between the two round rods, and the octopus is dug out in time; the octopus trapping and recycling device improves the efficiency of trapping and recycling octopus.

The application discloses an agricultural pest trapping and killing device, and relates to the technical field of pest trapping and killing, which comprises a fixed bottom plate, a pest trapping lamp for trapping and killing pests is arranged on the top of the fixed bottom plate, an electric net is arranged outside the pest trapping lamp, a shielding assembly for protecting the whole device is arranged on the top of the electric net, a driving assembly for driving the electric net to shake is arranged on the bottom of the pest trapping lamp, and a cleaning assembly for removing pest corpses is arranged outside the electric net. The application is provided with a driving part matched with a cleaning part, a plurality of petal rings around the driving part rotate around a motion shaft axis, the petal ring is a convex structure, the electric net on one side of the connecting seat will vibrate up and down, mosquitoes and flies in the driving part fall from the electric net, the double-output motor is a servo motor, the motion ring is driven to move up together with the inner ring of the sweeping brush under the elastic driving of the top telescopic spring, the surface of the electric net can be swept at the same time in the process of shaking off pests, the application has better cleaning effect, and the light of the pest trapping lamp cannot be blocked by pest corpses.

The utility model relates to an artificial fish reef stichopus japonicus proliferation catching technology, in particular to a stichopus japonicus trapping device for an artificial fish reef area. The device adopts a net cage structure, a net cage frame is made of corrosion-resistant metal profiles or PE profiles, soft nylon nettings are fixed on the net cage frame to form the bottom of the net cage and the periphery of the cage body, and movable doors which are movably connected and can be opened and closed are arranged on the periphery of the cage body of the net cage, so that the stichopus japonicus in an artificial fish reef area can enter the cage body. According to the arrangement form and scale of an artificial fish reef area, fixed-point pile arrangement and throwing of the stichopus japonicus catching device are carried out, the stichopus japonicus catching device can be independently used and can be arranged in rows for use, arrangement is convenient, use is flexible, and the stichopus japonicus catching device is suitable for being used in various different artificial fish reef construction sea areas.

The invention discloses a soybean pod borer predicting and forecasting method based on machine learning, and relates to the technical field of insect situation prediction.The soybean pod borer predicting and forecasting method comprises the steps that trapping counting and state information are collected, the total trapping amount of the day is summarized, and an observation credibility index is calculated through S-shaped attenuation punishment; determining a key occurrence window for annual phase alignment of total trapping amount historical data, and calculating a phenological continuous index of a future prediction window based on a sowing date and day-by-day air temperature; establishing a mechanism constraint machine learning model based on a feedforward full-connection neural network, and outputting a continuous time trapping intensity predicted value and change trend information; carrying out numerical integration on the predicted value to obtain a future insect situation cumulant, and calculating an insect situation risk amount by combining the environmental suitability and the phenological suitability; and generating a maintenance instruction according to the observation credibility index, and outputting an early warning and patrol frequency adjustment instruction in a graded manner according to the insect condition risk quantity. According to the method, quantitative suppression of low-quality trapping data, constraint stabilization of a trapping intensity prediction mechanism and comparable and reviewable risk early warning are realized.

The utility model discloses a trapping device for preventing insects from laying eggs, which comprises a wool felt (1) compressed into a corrugated shape, a group of bristles (2) sewed at two ends of the wool felt (1) respectively, a support rod (3) and a plastic film (4). The egg laying trapping device induces codling moths to lay eggs in the device, concentratedly destroys eggs and trapped adults, has the advantages of being simple in structure and capable of being recycled, can reduce use of chemical pesticides, guarantees food safety and quality, and reduces prevention and control cost while controlling the number of pests.

The utility model relates to the technical field of dam termite prevention and control in water conservancy and hydropower engineering, in particular to a termite prevention and control dam structure which comprises a dam and a multifunctional termite prevention and control device. The multifunctional termite control device system is arranged in a dam with termite damage and comprises an osmotic pressure monitoring pipe, a termite trapping and killing device, a grouting device, an osmotic pressure monitoring device and a cover plate. The construction period and the operation period of the dam are both convenient; on the premise that dam osmotic pressure monitoring is not affected, a cover plate is arranged at the top of the termite prevention and control device, and replacement and long-term use of trapping and killing bags, bait guiding wood and an intelligent monitoring device which are embedded inside are facilitated; in the aspect of grouting control, long-term repeated grouting control can be realized without independent punching; the termites can be trapped, killed and monitored by burying trapping and killing bags, bait guiding wood and an intelligent monitoring device, and meanwhile, grouting measures can be implemented on the premise of low cost when necessary; construction is easy and convenient, the cost is low, and comprehensive control and thorough treatment of the termites are achieved.

The invention provides a CO2 trapping system and method based on a compression-absorption heat pump. The CO2 trapping system comprises a CO2 trapping unit, a CO2 compression and liquefaction unit and a compression-absorption heat pump unit, the CO2 trapping unit at least comprises an absorption tower and a desorption tower, and the absorption tower is connected to the desorption tower through a CO2 rich liquid pipeline via the compression-absorption heat pump unit; the CO2 compression and liquefaction unit is connected with the compression-absorption heat pump unit through a liquefied CO2 pipeline; the compression-absorption heat pump unit is used for extracting low-grade heat energy of liquefied CO2 generated by the CO2 compression and liquefaction unit and converting the low-grade heat energy into high-grade heat energy to heat CO2 rich liquor in the CO2 capture unit. According to the CO2 capturing system provided by the invention, the compression-absorption heat pump unit is utilized to realize efficient utilization of heat of the whole system for capturing CO2 from combustion flue gas to form a liquefied product, so that the heat grade and the heat pump performance coefficient are improved, the energy consumption of the CO2 capturing system is greatly reduced, and energy-saving CO2 capturing is realized.

The utility model discloses a foldable mesh cage type ampullaria gigas trapping device, and relates to the technical field of biological control. Comprising a folding net cage main body, a snail collecting cage arranged on the folding net cage main body and communicated with the interior of the folding net cage main body, a food calling bag arranged in the folding net cage main body in the length direction, a food calling agent contained in the food calling bag, a plurality of snail inlets formed in the folding net cage main body and guide assemblies arranged on the outer sides of the snail inlets. One end of the folding mesh cage body away from the conch collecting cage is closed; each pomacea canaliculata collecting cage is provided with a funnel-shaped inlet for collecting pomacea canaliculata and a closed net bag, and a phagostimulant is placed in the closed net bag; the portable folding chair is reasonable in design, has a foldable design, and is convenient to carry and store. The net cage structure effectively traps the ampullaria gigas and prevents the ampullaria gigas from escaping, and meanwhile a phagostimulant can be placed to attract the ampullaria gigas to enter the net cage. The device is suitable for rice fields and other aquatic environments, is easy to install and can be repeatedly used, and pollution to the environment is greatly reduced.

The utility model provides a forestry pest trapping device, and particularly relates to the technical field of pest trapping, the forestry pest trapping device comprises a shell, the top of the shell is fixedly connected with a hook, the outer side of the hook is fixedly connected with a solar panel, according to the forestry pest trapping device, the outer side of a collecting box is wrapped with a pest sticking plate, and the pest sticking plate is limited through a first limiting frame and a second limiting frame; the pest sticking plate can collect attracted pests, an insecticide is put into the collecting disc, when the pests enter the collecting box, the pests can be guided through the guide sleeve, the effect of preventing the pests from flying out can be achieved, the pests fall into the collecting disc, the pests can be killed through the insecticide, and during installation and replacement, the pin rod is pulled, and the pest sticking plate can be conveniently replaced. The spring is compressed through the convex ring, the collecting disc is slidably inserted into the mounting groove through the mounting block, then the pin rod is loosened, the spring rebounds, and the pin rod is inserted into the second pin hole, so that the collecting disc is mounted, and subsequent cleaning is facilitated.

The invention belongs to the technical field of solenopsis invicta prevention and control, and particularly relates to solenopsis invicta food bait as well as a preparation method and application thereof. The invention provides red imported fire ant food bait. The red imported fire ant food bait is prepared from energy main materials and auxiliary materials, the energy main material consists of the following components in percentage by weight: 50-70% of insect protein powder, 5-20% of corn flour, 9-11% of peanut oil, 9-11% of fish meal and 9-11% of cane sugar. The invention also provides an attractant matched with the red imported fire ant food bait. According to the invention, the efficiency of finding bait by the red imported fire ants can be improved, meanwhile, the recruitment behaviors of the worker ants are further increased, more worker ants are lured, and the comprehensive trapping effect is good.

The device comprises a cage body, a cage door, a pressing rod and a bait hanging hook, the cage door is arranged on a cage opening of the cage body, the pressing rod is arranged on the cage door, the tail end of the pressing rod is connected with the bait hanging hook arranged at the rear end of the cage body when the pressing rod is in a horizontal state, and the bait hanging hook is arranged at the rear end of the cage body. The mouse cage further comprises a rapid blood collecting device and a reset flapping device, the rapid blood collecting device is fixedly arranged on the side face of the rear end of the cage body, and the reset flapping device used for flapping and pressing a mouse on the rapid blood collecting device is arranged in the cage body. And the reset flapping device is arranged in the cage body and is positioned on the same side as the rapid blood collection device. The invention has the innovation points that the rapid blood collection device and the reset flapping device are additionally arranged on the existing mouse trapping cage, and a mouse can be driven and flapped onto the rapid blood collection device after being trapped, so that the mouse is subjected to blood collection, and whether the mouse is infected with Yersinia pestis or not is detected.

The utility model discloses an automatic liquid supplementing type sweet and sour liquid trap which comprises a main barrel body, an auxiliary barrel body connected to the bottom of the main barrel body, a threaded cover connected to the lower end of the main barrel body, a first plastic pipe and a second plastic pipe connected to the threaded cover, a load-bearing handle arranged at the top end of the main barrel body, and a liquid supplementing device connected to the load-bearing handle. The weighing handle is connected with a fixing hook, a protruding rain baffle is arranged at the tail end of the main barrel body, a spiral buckle used for fixing the auxiliary barrel body is arranged at the tail end of the main barrel body, trapping holes are formed in the upper portion of the side wall of the auxiliary barrel body, sweet and sour liquid in a trapping disc of the auxiliary barrel body is automatically supplemented through atmospheric pressure balance, frequent manual liquid supplementing is not needed, and the long-term trapping and preventing effect is achieved; the volatilization volume is reduced, the dosage of sweet and sour liquid is small, and the cost of attractants is saved; the main barrel body has shading and rain shielding functions, so that the situation that the trapping effect is lost due to disproportionality caused by dilution of rainwater and quick volatilization of effective components of sweet and sour liquid is effectively avoided.

Smart Pest Trapping Apparatus for crop Protection and insect management

The utility model belongs to the technical field of agriculture and forestry insect and mosquito trapping, and particularly relates to an intelligent agriculture and forestry insect and mosquito trapping device which comprises a trapper shell, a trapping mechanism is arranged in the trapper shell, and a deinsectization mechanism is arranged in the trapper shell. The trapping mechanism comprises a trapping bin, a trapping tank, trapping liquid, a placing plate and air holes, the trapping bin is communicated with the two sides and the top of the trap shell, the outer diameter of the trapping bin is larger than the inner diameter of the trapping bin, the trapping bin is conical, the trapping tank is arranged at the bottom of the inner wall of the trap shell, the trapping liquid is arranged in the trapping tank, and the placing plate is arranged on the trapping tank. The placing plate is installed in the trap shell and located on the top of the trapping tank, and the air holes are formed in the top of the placing plate. The utility model provides an intelligent agriculture and forestry insect and mosquito trapping device which can trap and kill mosquitoes, has small influence on the environment, reduces pesticide residues, avoids pollution of soil and water sources, and is beneficial to protection of the ecological environment.

The application provides a trapping device for tetrachloroisophthalonitrile synthesis gas, a use method and application thereof. The trapping device comprises a trapping device body and a top head arranged above the trapping device body. The trapping device body comprises at least two groups of trapping assemblies which are arranged at intervals and are independent of each other along the length direction of the trapping device body. Each group of trapping assemblies comprises at least one trapping shell which is arranged side by side along the width direction of the trapping device body. A longitudinal baffle is arranged inside the trapping shell. The baffle is parallel to the width direction of the trapping device body. The baffle divides the inside of the trapping shell into a bottom-communicating approach trapping chamber and a return trapping chamber. A jacket is arranged outside the trapping device body. The trapping shells are arranged in a matrix form in the jacket. Cooling medium is introduced into the jacket. The top head is used for connecting the top portions of two adjacent groups of trapping assemblies. A longitudinal partition plate is arranged in the top head and is opposite to the position of the baffle. An air inlet and an air outlet are arranged on the two sides of the short side of the top head.

The utility model discloses an agricultural pest control insect trapping device, and belongs to the technical field of pest control. An agricultural pest control insect trapping device comprises an insect trapping structure, the insect trapping structure comprises a mounting ring, protective nets are fixedly installed at the two ends of the mounting ring, an insect trapping lamp is fixedly connected to the protective net located at the lower end, a plurality of connecting rods are fixedly connected to the bottom face of the mounting ring, a collecting barrel is fixedly connected to the lower ends of the connecting rods, and a filter net abuts against the bottom face of the collecting barrel in a matched mode. A fan is fixedly installed in the installation ring, and the filter screen is of a circular truncated cone structure. Through the design of the pest trapping structure, pests can be lured to gather around the pest trapping lamp through the pest trapping lamp at night, then the fan sends the pests to the filter screen through the anti-overflow block, the pests are continuously air-dried at the moment, and the anti-overflow block can prevent the pests from flying upwards or being blown upwards, so that the pest trapping effect is improved. Therefore, pests can be killed continuously, energy consumption is low, and the pest killing effect can be kept all the time.

The utility model discloses a physical trapping device for crop insect pests. The physical trapping device comprises a cavity, an insect trapping module, insect sticking paper and a winding and unwinding mechanism, wherein the insect trapping module, the insect sticking paper and the winding and unwinding mechanism are arranged in the cavity. A plurality of holes are distributed in the side wall of the cavity at equal intervals, and the sizes of the holes enable pests to enter the cavity from the outside of the cavity; the pest trapping module is arranged in the cavity to attract pests located outside the cavity to move towards the interior of the cavity; the insect sticking paper is arranged in the cavity and wraps the insect trapping module, an adhesive layer of the insect sticking paper faces the cavity to form an insect catching area, and insect trapping information of the insect trapping module can penetrate through the insect sticking paper to be diffused to the outside of the insect sticking paper; the winding and unwinding mechanism is arranged in the cavity and can wind the insect sticking paper stuck with the pests in the insect catching area and unwind the sticky insect sticking paper to cover the insect catching area, and the insect sticking paper is automatically replaced regularly through the winding and unwinding mechanism.

DOSAGE COMPRISING A CARBON DIOXIDE PRECURSOR GEL, KIT, TRAPPING DEVICE AND METHOD OF USE The invention relates to a dose (2, 3, 4) comprising a composition encapsulated in a water-soluble shell, said dose being characterized in that said composition is formed of a CO2 precursor gel, comprising: - between 27% and 38% by mass of water relative to the total mass of said CO2 precursor gel, - between 60% and 70% by mass of sucrose relative to the total mass of said CO2 precursor gel, - between 2% and 4% by mass of animal gelatin relative to the total mass of said CO2 precursor gel. The invention also relates to a pest trapping device comprising at least one such dose and a method of using such a pest trapping device. Figure for the abstract: Figure 1

The utility model relates to the technical field of forestry pest trapping devices, and discloses an easily-detachable forestry pest trapping box which comprises a first transparent shell, a second transparent shell is arranged on the inner bottom wall of the first transparent shell, and a box cover tightly attached to the top of the second transparent shell is arranged on the top of the first transparent shell. A deinsectization assembly is arranged at the bottom of the box cover, and conical inlet pipes with one ends communicating with the inner wall of the second transparent shell are arranged on the left side wall and the right side wall of the first transparent shell correspondingly. According to the forestry pest trapping box easy to disassemble, by arranging the lock catch assembly, when the box cover needs to be disassembled, a worker can pull two lock catches towards the two sides, so that the lock catches are separated from lock catch bases, and at the moment, the box cover can be disassembled from the first transparent shell; and the box cover can be disassembled without rotating the box cover, so that the disassembly is relatively convenient, the practicability of the device is improved, and the device is convenient to use by a worker.

The utility model relates to the technical field of pest control, in particular to an experiment box for pest control, which comprises a box body, the top end of the box body is fixedly connected with a top frame, an air suction unit is arranged in the center of the interior of the top frame, an agent ring cover is sleeved on the outer surface of the air suction unit, and a trapping inner cover is arranged in the center of the interior of the box body. The bottom end of the box body is fixedly connected with a connecting bottom frame, and a collecting net bag is arranged at the bottom end of the connecting bottom frame. Through the arrangement of the box body, the top frame, the air suction unit, the medicament ring cover, the trapping inner cover, the trapping ring lamp, the electric shock grating groove, the flow uniformizing frame, the diffusion cone groove, the ventilation grating and the sealing valve, the device can conduct trapping operation of the experiment box for pest control in a larger range. A worker firstly injects a smell diffusion medicament used for trapping into the medicament ring cover from the sealing valve, and then the medicament ring cover is wholly arranged on the outer surface of the air suction unit in a sleeving mode.

The present application relates to the technical field of insecticide, especially to an automatic insect trapping and killing device, comprising a support frame, a liquid storage tank, a piston pipe, a liquid delivery pipe, a piston rod, a liquid outlet pressure rod, a liquid outlet torsional spring, an insecticide cylinder, an insect trapping opening and a liquid outlet ejector rod; the liquid storage tank and the piston pipe are fixedly connected to the support frame, the liquid delivery pipe is connected between the piston pipe and the liquid storage tank, the piston rod is slidably connected in the piston pipe, the liquid outlet pressure rod is rotatably connected to the support frame and slidably connected with the piston rod, the liquid outlet torsional spring is connected between the liquid outlet pressure rod and the support frame, the insecticide cylinder is arranged below the support frame, the insect trapping opening is arranged on the insecticide cylinder, and the liquid outlet ejector rod is fixedly connected to the insecticide cylinder; after the insecticide is stored in the liquid storage tank in advance, the electric push rod drives the insecticide cylinder to move upward at a constant time, so that the liquid outlet ejector rod can deliver the quantitative insecticide in the piston pipe to the insecticide cylinder.

The utility model belongs to the technical field of pest control, and particularly relates to an insect trapping board which comprises a base and a board body, insect sticking glue is arranged on the board body, an installation protrusion is arranged on the base, a limiting protruding edge and a limiting wall are arranged on the installation protrusion at intervals, and an installation groove is formed between the limiting protruding edge and the limiting wall. A fixing hole used for installing a lure is formed in the installation protrusion, a first installation hole matched with the installation groove is formed in the plate body, the limiting protruding edge and the limiting wall can limit relative movement of the first installation hole on the installation protrusion, and the plate body is prevented from being accidentally disengaged from the base. And the first mounting hole can cross the limiting convex edge and is separated from the mounting bulge under the action of external force. The utility model aims to provide the insect trapping plate which is simple in structure and convenient to produce and assemble.

The invention relates to the technical field of crop disease and pest control, and discloses a trapping and killing device for crop disease and pest control. The trapping and killing device comprises a supporting base column, the outer side of the supporting base column is fixedly connected with a trapping and killing shell through a connecting rod, and the inner side of the trapping and killing shell is evenly and fixedly connected with multiple rows of conical shells in the circumferential direction; an opening in the end, located on the inner side of the trapping and killing shell, of the conical shell is smaller than an opening in the other end, facing the outer side of the trapping and killing shell, of the conical shell, a monitoring device is fixedly connected to the outer side of the trapping and killing shell, and a power shell is rotationally connected to the inner top wall of the trapping and killing shell through a driving assembly; the bottom end of the power shell is fixedly connected with a blocking plate used for blocking an opening in the inner side of the conical shell, and an inducing rod is detachably installed on the top wall of the inner side of the trapping and killing shell. The trapping and killing device for crop disease and pest control has the advantages that the defects that an existing device depends on single taxis and has no differential effect are overcome, pests and beneficial insects can be accurately distinguished, and the false touch rate of the beneficial insects is reduced.