33 results about "Wettable powder" patented technology

The invention discloses an application of trichoderma griseaginii TR2122 in prevention and treatment of beet root rot, a strain of the trichoderma griseaginii TR2122 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.21025, and the strain has strong antagonism and hyperparasitism effects on fusarium oxysporum causing the beet root rot. Meanwhile, the invention further provides a microbial preparation containing the live spores of the strain, the spore content is not lower than 2 * 10 < 8 > CFU / g, and the microbial preparation is preferably wettable powder containing a parent drug, a dispersing agent, a wetting agent and filler. In addition, the invention further discloses a preparation method of the preparation, and the preparation method comprises the steps of fermentation culture, concentration drying and mixing preparation. The strain and the preparation have stable and lasting control effect on beet root rot, are superior to or equivalent to conventional chemical agents, are safe and environment-friendly, and provide an effective solution for beet green control.

The present application provides a kind of wettable powder and its preparation method and application, belong to forest disease biological control technical field.The wettable powder of the present application is made of the following mass fraction components: Bacillus subtilis WB1 fermentation liquor 90-110 parts, filler 42-48 parts, auxiliary 28-32 parts.The wettable powder of Bacillus subtilis WB1 prepared by the present application has high viable count, good suspensibility, dispersibility and wettability, can be stored, transported and sprayed in large area in forest at room temperature for a long time, has broad-spectrum antibacterial property, and has good control effect on walnut bacterial black spot.The preparation method of the wettable powder of the present application is simple, low in cost, and suitable for large-scale popularization and application.

The utility model relates to a microbial biopesticide wettable powder preparation device, which belongs to the technical field of pesticide wettable powder preparation, and comprises a bottom shell and a feed delivery pipe, an outer cylinder is fixed at the top of the bottom shell, a cylinder piece is arranged on the inner side of the outer cylinder, an electric valve is fixed at the bottom of the bottom shell, a discharge pipe is fixed at the bottom of the electric valve, and the discharge pipe is connected with the feed delivery pipe. A springing mechanism is arranged on the inner cavity wall of the outer cylinder, a swinging mechanism is arranged on the inner cavity wall of the outer cylinder, a rotating rod is fixed on the swinging mechanism, and stirring blades are fixed on the outer side of the rotating rod. According to the microbial biopesticide wettable powder preparation device, energy is supplied through a springing motor, a filter plate is driven to springing, so that raw materials with a poor crushing effect are intercepted, circumferential rotation of a driven gear is realized through arrangement of a swing mechanism, and uniform mixing of the raw materials by stirring blades is realized through cooperation with arrangement of a rotating motor; overall use is convenient, and the mixing effect is good.

The utility model provides a kind of hierarchical impeller for agricultural chemical wettable powder, it is related to hierarchical impeller technical field, to solve the problem that existing hierarchical impeller when using, using straight blade or forward-inclined blade, turbulent flow is generated when airflow passes, leading to coarse particle is mixed into finished product by turbulent flow entrainment, airflow passage distortion, produces the problem of tail vortex disturbance flow, including top sheet;Top sheet outside is provided with flow guide ring;Top sheet is provided with blade;Blade is set on flow guide ring;Blade bottom is provided with bottom sheet;Bottom sheet bottom is provided with fairing.The backward-inclined blade can produce more gentle airflow field and more uniform centrifugal field, improve classification accuracy, reduce the entrainment of coarse particles, the setting forty-eight groups of blades can improve classification efficiency and classification accuracy, ensure enough classification area length, increase flow guide ring, fairing at impeller outlet, improve airflow distribution, reduce inlet turbulent flow and outlet backflow, make airflow more uniform, stably pass through classification zone, improve classification accuracy.

DEPCT68 What is described here is a dry formulation of agricultural chemical compounds, such as granules that are dispersible in water. (WG) or wettable powder (WP), for active ingredients with a relatively low melting temperature, such as: Bifenthrin dry formulations provide a high loading of the active ingredient and good dispersion ability. Excellent, and excellent storage stability;

The invention discloses a biopesticide composition for preventing and treating sesame bacterial wilt and a preparation, and belongs to the technical field of plant protection. The biopesticide composition for preventing and treating sesame bacterial wilt comprises the following raw materials in parts by mass: 30-40 parts of 50% carbendazim wettable powder, 2-3 parts of spinach / chamomile mixed extract, 2.5-3.5 parts of citrus peel extract and 1.5-2 parts of compound microorganisms. The biopesticide composition for preventing and treating sesame bacterial wilt has a good bacteriostatic effect on pathogenic bacteria, can effectively inhibit infection of the pathogenic bacteria on plants, can reduce the dosage of chemical agents, can reduce the risk that the pathogenic bacteria generate drug resistance, can effectively prevent and relieve the disease condition of sesame, and has a good application prospect. The influence of bacterial wilt on the economic crop yield is reduced.

The utility model provides a wettable powder anti-blocking vibration screening conveying assembly, and relates to the technical field of wettable powder conveying, the wettable powder anti-blocking vibration screening conveying assembly comprises a conveying frame, a conveying belt is arranged on the inner side of the conveying frame and used for conveying wettable powder, and a material guiding assembly extending to the position above the conveying frame is arranged on the outer side of the conveying frame and used for conveying the wettable powder. The material receiving and guiding device is used for receiving and guiding wettable powder; a screening mechanism penetrating to the right side of the material guiding assembly is arranged on the inner side of the material guiding assembly. The anti-caking vibrating screening conveying assembly for the wettable powder is used for screening the wettable powder and can not only efficiently loosen caked materials and promote fine powder screening, but also avoid generation of new cakes due to rigid collision, and meanwhile secondary treatment is conducted on large-particle materials left after screening to ensure that the particle sizes of the materials are uniform; by means of the technical scheme, accurate feeding back of crushed materials is achieved, blocking or splashing is prevented, a continuous circulating screening process is formed, the anti-caking treatment efficiency is greatly improved, material waste is reduced, and continuity and reliability in the production process are remarkably improved.

The invention discloses diuron wettable powder and a preparation method thereof, and belongs to the technical field of pesticide preparations, and the diuron wettable powder is prepared from the following raw materials in parts by weight: 50-60 parts of diuron, 10-15 parts of a composite carrier, 4-6 parts of a dispersing agent, 3-5 parts of a wetting agent and the balance of modified calcium carbonate, the composite carrier is TEMPO oxidized nano cellulose cross-linked sodium alginate. In addition, a benzoic acid grafted chitosan anchoring reinforcing agent is also added, and the loading capacity and suspension stability of diuron can be further improved through the pi-pi conjugation effect of the benzoic acid grafted chitosan anchoring reinforcing agent and diuron and hydrogen bond combination of the benzoic acid grafted chitosan anchoring reinforcing agent and the carrier. The diuron wettable powder solves the problems that the solubility of diuron in water is extremely low, and a preparation has low suspension rate and is easy to flocculate and precipitate, while the diuron wettable powder prepared by the invention not only can obviously improve the dispersity and suspension stability of raw medicine particles in water, but also can effectively prevent the phenomena of flocculation, caking and precipitation in the storage and use processes, and has a good application prospect. Therefore, the pesticide application uniformity and the full exertion of the pesticide effect are ensured.

The invention relates to thiophanate-methyl wettable powder and a preparation method thereof, and belongs to the technical field of pesticides. The wettable powder is composed of 60-70 parts of thiophanate-methyl microcapsule active compound, 15-20 parts of modified kaolin, 4-6 parts of compound wetting dispersant and 5-9 parts of white carbon black. The thiophanate-methyl microcapsule active compound is prepared by coating an active compound and an Arabic gum-maltodextrin-cation modified starch ternary composite wall material, modified kaolin is modified by KH550 and polyethylene glycol 400, and the compound wetting dispersant is compounded by sodium dodecyl benzene sulfonate and polyoxyethylene ether acrylate with the ethylene oxide number of 10-12 (0.8-1.2): 1. The problems that an existing product is poor in wettability, prone to caking and uneven in dispersion are solved, the preparation technology is matched with conventional equipment, and industrial continuous production can be achieved.

The invention provides application of beauveria bassiana HFBb18 in preparation of a green peach aphid biological control entomopathogenic fungus agent, and belongs to the technical field of agricultural biology. The inventor acquires and identifies three new strains of beauveria bassiana from the field, then selects three strains of beauveria bassiana preserved in a laboratory, and finds that the newly found HFBb18 strain has high toxicity to green peach aphids through indoor toxicity determination. On the basis, the influence of infection of the HFBb18 strain on the activities of detoxifying enzyme and protecting enzyme of green peach aphid is determined. Furthermore, the wettable powder taking the HFBb18 strain conidia as a main active ingredient is prepared, the potting pesticide effect test control effect of the wettable powder on green peach aphids is defined, and a foundation is laid for development and application of a novel fungal aphid killing agent.

The utility model discloses hoisting equipment for processing pesticide wettable powder with radian, which comprises a track and an electric hoist movably connected to the track, a wire is connected to a connector of the electric hoist, the wire is connected with a winding mechanism used for winding the wire, the winding mechanism comprises a winding shell, a motor and a winding shaft, and the winding shaft is connected with the motor. The motor is used for driving the winding shaft to rotate, the winding shaft is rotationally connected into the winding shell, the wire is wound around the winding shaft, the winding shell is connected with a connecting mechanism, and the connecting mechanism is connected with the top of a plant. The motor drives the winding shaft to rotate, winding and releasing operation can be conveniently conducted on a wire, the wire between the winding shell and the electric hoist is made to be in a linear state, winding hidden danger of the wire is avoided, use is safe and reliable, pulling force exerted by the wire on the winding shell can drive the winding shell to rotate, and the winding effect is good. And the wire can be wound and released smoothly, and the practicability is high.

The invention provides a herbicide compound for preventing and removing weeds in a radix angelicae pubescentis field. The herbicide compound comprises 40% of prometryn wettable powder (mass), 30% of benazolin suspending agent (volume) and a vegetable oil synergist (volume). The ratio of the components is (8-14): (4-12): 9. The compound is safe to the radix angelicae pubescentis and has an excellent control effect on annual broadleaf weeds and annual grassy weeds (the total control effect reaches 95% or above), stem and leaf spraying in the seedling stage has soil closed weeding activity, weeds in the whole growth period of the radix angelicae pubescentis can be controlled through one-time pesticide application, secondary pesticide application or manual weeding is avoided, the production cost is greatly reduced (1, 100-2, 300 yuan / mu), and cost saving and synergism are remarkable. The added plant oil synergist can improve the control effect, reduce the dosage of prometryn and benazolin so as to effectively reduce the environmental risk, improve the safety to succeeding crops, and effectively delay the generation and development of the drug resistance of weeds.

This invention relates to a high-suspension-rate thiophanate-methyl wettable powder and its preparation method, belonging to the field of pesticide formulation technology. The wettable powder is composed of the following raw materials in parts by weight: 65-70 parts thiophanate-methyl, 3-6 parts carboxymethylated lignin complex, 0.5-2 parts wetting agent, 10-20 parts amino-modified kaolin, and 2-6 parts silica. The preparation method includes: mixing the carboxymethylated lignin complex, wetting agent, amino-modified kaolin, and silica to obtain a premix; adding thiophanate-methyl after air jet milling; and mixing again to obtain the final product. The wettable powder of this invention exhibits good wetting time and suspension rate, and excellent thermal storage stability.

This invention provides a wettable powder of imidacloprid, the raw materials for which include: imidacloprid, a wetting and dispersing agent, a filler, and other additives, wherein the imidacloprid content is 15-25 wt%. The wetting and dispersing agent includes anionic, nonionic, and inorganic dispersants. The filler includes one or more of silica powder, quartz powder, clay, calcium oxalate, mica powder, carbon black, calcium sulfate, and alumina. This invention provides a wettable powder with excellent suspension and wettability.

The invention discloses high-suspension carbendazim wettable powder and a preparation method thereof, and belongs to the technical field of pesticide wettable powder. Comprising the following components in parts by weight: 40-60 parts of carbendazim, 25-45 parts of kaolin, 0.1-3 parts of a wetting agent, 1-5 parts of a dispersing agent and 0.5-3 parts of a ternary compound stabilizer. Wherein the carbendazim is subjected to low-temperature plasma surface modification treatment, and the ternary compound stabilizer is a compound of xanthan gum, sodium alginate and silicon dioxide aerogel. The preparation method comprises the following steps: mixing the components in sequence, carrying out superfine grinding, and sieving. The hydrophilicity of the carbendazim is improved through plasma surface modification, the wettability and suspension stability of the powder in water are remarkably improved through the synergistic effect of the ternary compound stabilizer, and the carbendazim powder has the advantages of being high in suspension rate, short in wetting time, simple in preparation process and the like and is suitable for industrial production and application.

The invention belongs to the technical field of pesticide production, and provides a preparation method of high-wettability thiophanate-methyl wettable powder, which comprises the following steps: step 1, adding acrylic acid into a sodium hydroxide solution in an ice-water bath, stirring to react, adding bentonite, an initiator and a cross-linking agent, continuously stirring to react, and filtering to obtain a filtrate; heating to 80-85 DEG C in a nitrogen atmosphere, stirring and reacting for 3.0-3.5 hours, and drying in vacuum to obtain the modified bentonite. Step 2, mixing the thiophanate-methyl active compound, the modified bentonite, the filler, the surfactant and the wetting agent in proportion for the first time to obtain a mixture; and step 3, crushing the mixture, performing cyclone separation, performing secondary mixing, and packaging and warehousing after uniform mixing. According to the thiophanate-methyl wettable powder, the wetting time is shorter than 55 seconds, the suspension rate is higher than 97.5%, the use efficiency of thiophanate-methyl is remarkably improved, the thiophanate-methyl wettable powder is economical, and pollution to the environment is reduced.

The utility model discloses grinding equipment for processing carbendazim wettable powder, which comprises a grinding box and a feeding cylinder, a cover plate is arranged on the grinding box, a collecting hopper is arranged below the grinding box, the lower part of the feeding cylinder is communicated with the grinding box through a material pipe, fixed grinding discs are symmetrically and fixedly mounted in the grinding box, and the fixed grinding discs are fixedly mounted in the grinding box. And a movable grinding disc is arranged below the fixed grinding disc, the movable grinding disc and the grinding box shell are connected through a telescopic piece, a rotating rod is rotationally installed in the feeding barrel, and a spiral guide plate is installed on the outer wall of the end, stretching into the material pipe, of the rotating rod. Raw materials spirally move downwards along with the spiral guide plate, the feeding amount of the raw materials into the grinding box can be effectively controlled, and the spiral guide plate can be used for sealing and blocking the material pipe to a certain extent when grinding is carried out in the grinding box, so that flying dust overflow formed in the grinding process is reduced, and meanwhile the grinding efficiency is improved. And in the whole grinding process, the manual participation degree is effectively reduced, and the health and safety of workers are protected conveniently.

The utility model relates to wettable powder crushing device field discloses a wettable powder crushing department fixed connection with the feed pipe of grading screen, the outside fixed connection of shell has the feed pipe, the inside of feed pipe is provided with drive assembly, the left end fixed connection of drive assembly has rotary column no.

This invention provides a wettable powder of DSE (dichloropyrophylloides) spores, its preparation method, and its application, belonging to the field of microbial preparation technology. It comprises chlamydospores from at least one dark-colored septate endophytic fungus, a carrier, and excipients, wherein the chlamydospore content is greater than 2.35 × 10⁻⁶. 8 CFU / g. This invention improves the properties of wettable powder by rationally optimizing the dosage of DSE chlamydospores and excipients, achieving a chlamydospore content of 2.35 × 10⁻⁶ CFU / g in the finished product. 8 With a concentration of CFU / g, a wetting time of 24.25s, and a suspension rate of 73.8%, all indicators meet national standards. It can be stored at room temperature for over 12 months, extending its shelf life by more than 6 months compared to conventional conidiophore agents. This powder significantly increases the expression of five defense enzymes—PAL, PPO, POD, CAT, and SOD—in tomato and rice plants, thereby activating the plant's defense system. It effectively controls bacterial wilt in tomatoes and black-streaked dwarf disease in southern rice, improving the growth of tomatoes infected with bacterial wilt and rice infected with black-streaked dwarf disease. It is suitable for promotion and use as a novel biological pesticide product.

This invention discloses a segmented cutting propagation method, belonging to the field of garden plant propagation technology. The segmented cutting propagation method includes the following steps: cutting preparation, root primordia-promoting treatment, and root-promoting treatment. The root primordia-promoting treatment involves quickly dipping the lower part of the cutting into a root primordia-promoting solution, placing the cutting on a partition of a root primordia-promoting device, and spraying the cutting on the partition for 9-11 minutes every 2 hours until root primordia are generated, thus obtaining cuttings treated with root primordia-promoting solution. The root primordia-promoting solution is an aqueous solution of IBA, NAA, and 70% hymexazol wettable powder. Applying this segmented cutting propagation method to summer softwood cutting propagation can shorten rooting time and reduce rot rate.

This invention provides a method for controlling the olive psyllid, belonging to the field of olive cultivation technology. The method includes the following steps: S1: Applying organic fertilizer, superphosphate compound fertilizer, urea, and ammonium bicarbonate to the soil to promote the growth of new shoots and leaves; S2: Collecting adult psyllids, eggs, larvae, or pupae of natural enemies of the psyllid manually and releasing them to fully utilize natural control; simultaneously, spraying with highly effective and low-toxicity pesticides that have low toxicity to natural enemies; S3: Checking for pests each time new shoots emerge and spraying with pesticides, namely acetamiprid wettable powder, milbemycin, and spirotetramat; S4: Winter orchard cleanup. This invention, by spraying acetamiprid wettable powder, milbemycin, and spirotetramat during the control of the olive psyllid, achieves a synergistic effect, synergistically improving the control efficacy of the olive psyllid.

The present application belongs to the technical field of agricultural pest control equipment, and relates to a green agricultural pest control pesticide spraying device, which comprises a box body, a first stirring mechanism, at least one first tank body, a second stirring mechanism, a second tank body, a piston, a spray head, a plurality of output holes and a horizontal reciprocating movement mechanism. The pesticide is first mixed with a small amount of water to form a relatively uniform mixture, ensuring that the wettable powder and other pesticides are fully dispersed in the water. The horizontal reciprocating movement mechanism drives the piston to move, the pressure in the second tank body changes, the mixture is pressurized and injected into the box body, the mixture enters the rotating liquid at a certain speed from multiple different angles, the mixture can form local vortexes at different positions in the rotating liquid, the formation of turbulence is promoted, the diffusion capacity of the pesticide is enhanced, the interface between the pesticide and water is broken, and the cohesion between the wettable powder particles is reduced, thereby reducing the cohesion phenomenon of the wettable powder.

The invention relates to green muscardine fungus wettable powder as well as a preparation method and application thereof, and belongs to the technical field of biopesticide preparation. The invention provides metarhizium anisopliae wettable powder. The metarhizium anisopliae wettable powder is prepared from components in parts by mass as follows: metarhizium anisopliae spore powder, a compound ultraviolet protective agent, a dispersing agent, a wetting agent and filler, the compound ultraviolet protective agent comprises xanthan gum, dextrin and BP-4 in a mass ratio of (1-2): (1-2): (1-2). The composite ultraviolet protective agent is constructed by screening and compounding ultraviolet protective agents with different action mechanisms, a synergistic'physical-chemical-biological 'triple protection network is formed, the tolerance of spores to ultraviolet radiation is remarkably enhanced, the germination rate of the spores subjected to ultraviolet radiation is increased to 70.2% from 24.9%, and the germination rate of the spores subjected to ultraviolet radiation is increased to 70.2% from 24.9% through compounding of the filler, the wetting agent and the dispersing agent. The wetting time and the suspension rate of the product are superior to the national quality standard.

The invention discloses an anti-dissipation filling device for paclobutrazol wettable powder, and belongs to the technical field of pesticide preparation production equipment. The filling device comprises a filling tank, a stirring mechanism, a spiral conveying mechanism and an anti-escape filling head arranged at a discharging pipe opening. The anti-escape filling head is connected with the outer through rotating sleeve through a rotating communicating sleeve set, and an air hole runner communicating with the suction air pump and the air blowing pump is arranged in the outer through rotating sleeve. And an inner anti-escape air passage and an outer anti-escape air passage are formed between the anti-escape filling head and the outer anti-escape cover. The working modes of the device can be switched by rotating the rotary communicating sleeve group: in the filling mode, the suction air pump is started, and dust escaping during filling is efficiently sucked and recycled through the double anti-escape air passages; and in the cleaning mode, the air pump is started, air flow blows the discharging pipe opening and the interior of the anti-escape filling head at the same time, and self-cleaning and anti-blocking are achieved. The problems of dust pollution and pipeline blockage in powder filling are effectively solved, and the powder filling device has the advantages of being good in anti-dissipation effect, capable of being cleaned online, compact in structure and convenient to operate.

The invention discloses a process for efficiently producing diuron wettable powder, and belongs to the technical field of herbicides, the process comprises the following steps: mixing 80 parts by weight of diuron technical, 4-5 parts by weight of an auxiliary agent, 10-12 parts by weight of a filler and 4-5 parts by weight of a dispersant, and carrying out jet milling to obtain a mixed material; adding the residual filler into the mixed material, and fully mixing to obtain diuron wettable powder; the auxiliary agent is prepared by cross-linking chitosan oligosaccharide and polyethylene glycol. According to the process, the suspension rate of the diuron wettable powder is increased by adding the auxiliaries, and the storage stability of the diuron wettable powder is improved. The additive not only improves the stability and dispersity of the preparation, but also can be gradually degraded in the environment to release a nitrogen source, and provides additional nutrition supply for crops with high nitrogen demand.

The invention discloses high-purity diuron wettable powder and a preparation method thereof, and belongs to the technical field of pesticide wettable powder.The high-purity diuron wettable powder is prepared from, by mass, 60-65 parts of diuron technical, 20-25 parts of carriers and 10-20 parts of auxiliaries; wherein the carrier comprises sulfhydrylated carboxymethyl chitosan modified white carbon black and kaolin in a mass ratio of 1: (0.4-0.6). Sulfhydrylated carboxymethyl chitosan modified white carbon black and kaolin are selected as a wettable powder carrier together, so that a multi-stage adsorption network can be formed, and the adsorption capacity, the mechanical strength and the structural stability are improved. Wherein white carbon black is modified by sulfhydrylated carboxymethyl chitosan, so that the adsorption capacity of a carrier to impurity molecules can be remarkably enhanced, and when the impurity molecules are firmly adsorbed by the modified white carbon black, the interference of the impurity molecules on the herbicidal activity can be blocked, and the activity of an original drug is guaranteed, so that the diuron wettable powder with high purity and high stability is obtained.

This invention discloses a nanocomposite biocontrol bacteria wettable powder for preventing and controlling asparagus root rot and its preparation method, belonging to the field of agricultural biotechnology. The powder comprises, by mass percentage: 35%–45% carrier, 6%–10% wetting agent, 3%–5% dispersant, 1.5%–2.5% protectant, 0.01%–5% nanomaterials, and the remainder being Bacillus amyloliquefaciens. This invention uses orthogonal experiments to precisely screen the optimal ratio of carrier, wetting agent, and other adjuvants with nanomaterials, and combines it with a vacuum freeze-drying preparation process. While ensuring the formulation has excellent wetting, dispersing, and other physicochemical properties, it maximizes the preservation of the biological activity of Bacillus amyloliquefaciens, solving the industry problem of easy loss of activity in biocontrol bacteria formulations during preparation and storage. Moreover, it is more environmentally friendly than chemical fungicides, reducing damage to the soil and the asparagus planting environment.

The invention relates to stable and efficient carbendazim wettable powder and a preparation process thereof, and belongs to the technical field of pesticide preparations. The carbendazim wettable powder comprises the following components in percentage by mass: 45-50% of carbendazim, 0.5-2% of a composite modified wetting agent, 4-8% of a sulfonated polycarboxylate dispersant, 10-20% of chemically grafted modified kaolin and the balance of filler. The compound modified wetting agent is formed by compounding amino modified sodium dodecyl benzene sulfonate and carboxyl modified fatty alcohol-polyoxyethylene ether, and the chemically grafted modified kaolin is chemically grafted and modified by a silane coupling agent. Through a crushing and surface coating integrated process, the product wetting time is short, the suspension rate is high, the heat storage stability is excellent, and crop diseases caused by fungi can be effectively prevented and treated.

The application discloses a segmented cutting seedling raising method and belongs to the technical field of garden plant breeding. The segmented cutting seedling raising method comprises the following steps: cutting preparation, root primordium promoting treatment and rooting promoting treatment. In the root primordium promoting treatment, the lower part of the cutting is dipped into a root primordium promoting solution at a high speed, the cutting is placed on a partition plate of a root primordium promoting device, the cutting on the partition plate is sprayed, spraying is continuously performed for 9-11 minutes every 2 hours until root primordia are generated, and a cutting after root primordium promoting treatment is obtained. The root primordium promoting solution is an aqueous solution of IBA, NAA and 70% prochloraz wettable powder. The segmented cutting seedling raising method can be applied to summer tender branch cutting propagation, and can shorten the rooting time and reduce the rot rate.

The invention provides DSE chlamydospore wettable powder as well as a preparation method and application thereof, and belongs to the technical field of microbial preparations, the DSE chlamydospore wettable powder comprises chlamydospore from at least one dark partitioned endophytic fungus, a carrier and auxiliary materials, and the content of the chlamydospore is greater than 2.35 * 10 < 8 > CFU / g. The product property of the wettable powder is improved by reasonably optimizing the dosage of the DSE chlamydospore and the auxiliary materials, the chlamydospore content in the finished product can reach 2.35 * 10 < 8 > CFU / g, the wetting time is 24.25 s, the suspension rate is 73.8%, and all indexes meet the national standard; the product can be stored for more than 12 months at normal temperature, and the shelf life is prolonged by more than 6 months compared with that of a conventional conidium microbial agent. The powder can remarkably improve expression of five defensive enzymes, namely PAL, PPO, POD, CAT and SOD, in tomato and rice plants, so that a defensive system of the plants is activated, tomato bacterial wilt and southern rice black-streaked dwarf can be effectively prevented and treated, the growth vigor of the tomato infected with the bacterial wilt and the growth vigor of the rice plants infected with the southern rice black-streaked dwarf are improved, and the powder is suitable for being used as a novel biopesticide product to be popularized and used.