364 results about "Pine wood" patented technology

The invention discloses a pine wood nematode disease intelligent identification method and system based on an unmanned aerial vehicle technology, and the method comprises the steps: S1, collecting an image of a tree region through employing an unmanned aerial vehicle to carry a multispectral camera, removing the image noise through employing a bilateral filtering algorithm, and obtaining a denoised image; s2, extracting color features, texture features and vegetation index features from the denoised image; s3, manually marking the de-noised image, and marking a tree area infected with the pine wood nematode disease; s4, integrating the denoised image, the color features, the texture features, the vegetation index features and the segmentation mask, and constructing and training a pine wood nematode disease segmentation model based on U-Net; and S5, identifying a pine wood nematode disease infection area by using the trained pine wood nematode disease segmentation model. The invention can provide an efficient and accurate pine wood nematode disease intelligent identification method, and the limitation of a traditional monitoring means is overcome by using a modern unmanned aerial vehicle technology and a deep learning algorithm.

The invention discloses a pine wood nematode disease tree grading detection method based on unmanned aerial vehicle remote sensing and an improved PWD-YOLOv10n algorithm, and relates to the technical field of forestry harmful diseased tree detection, and the method comprises the steps: (1) diseased tree remote sensing image collection; (2) constructing a data set; (3) network model improvement; (4) selecting evaluation indexes; (5) result evaluation: in the step (3), by designing a PWD-YOLOv10 model with high precision and low leak detection, introducing a CAA attention mechanism module into a backbone network of the YOLOv10n model so as to enhance the feature extraction capability; c2fEMSCP modules are introduced into a backbone part and a neck part respectively, the recognition precision of the model is further improved, the omission ratio is effectively reduced, and rapid and accurate grading detection on the pine wood nematode disease tree in a complex environment is realized by training the high-performance PWD-YOLOv10n model.

The invention discloses a pine wood nematode disease intelligent identification management and control method and system based on artificial intelligence, and relates to the technical field of forest management and control, and the system discloses a pine forest region division management and control module, a pine wood nematode disease identification module, a pine wood nematode disease treatment analysis module, and a region management and control sorting module. A pine forest region division control module and a pine wood nematode disease identification module are arranged, reasonable region control is performed on a pine forest region, pine wood nematode diseases in the pine forest region are accurately identified through deep analysis of multi-dimensional disease features, and a pine wood nematode disease treatment analysis module and a region control sorting module are arranged. The pine forest simulation management and control model of the pine wood nematode disease recognition area is constructed, the actual situation of the pine wood nematode disease recognition area in the subsequent management and control process is accurately analyzed, and the current disease situation, the subsequent disease control situation and the disease influence situation of the pine wood nematode disease recognition area are quantitatively analyzed.

The invention discloses a pest control management system and method for forest tree breeding, and relates to the technical field of forest tree breeding and seedling raising, and the method comprises the following steps: collecting environment data and soil rhizosphere data by collecting multi-mode images of leaves and trunks of a pinus massoniana young forest and videos that pinus massoniana caterpillars gnaw leaves and cluster diffusion; constructing a disease and insect pest recognition model by using a convolutional neural network, performing definite diagnosis on pine wood nematode disease, pine caterpillars and monochamus alternatus hope, and quantifying the disease and insect pest occurrence area and population density of each sub-region; calculating a pine wood nematode disease control demand index, comparing the pine wood nematode disease control demand index with a threshold value, and triggering a corresponding control strategy; the diffusion coefficient of the pine caterpillars is calculated and compared with a risk threshold value, and a prevention and control scheme is formulated; calculating the propagation coefficient of the monochamus alternatus hope, judging the propagation risk and giving a prevention and control strategy; according to the invention, intelligent pest identification, risk quantification and control strategy closed-loop control are realized, treatment and scientific prevention and control are facilitated, and the pest control efficiency of the pinus massoniana young forest and the forest stand health level are improved.

The invention discloses a strain of arthrosporium spp. And application thereof in prevention and treatment of pine wood line disease. The invention relates to Arthrobotrys heuanensis 18GD1705A, which is preserved in China General Microbiological Culture Collection Center (CGMCC) on November 15, 2021, the address of the Arthrobotrys heuanensis is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, the postal code is 100101, and the preservation number is CGMCC No.23851. The Arthrobotrys heuanensis 18GD1705A has the advantages that the Arthrobotrys heuanensis 18GD1705A can be used for preparing a microbial inoculant; according to the method disclosed by the invention, the river-source arthrosporium is inoculated into pine seedling bodies, and the nematodes are caught by utilizing a three-dimensional viscous bacterium net formed by special hypha metamorphosis and can also be killed by forming a structure similar to a contraction ring through singular contraction. Meanwhile, before the pine wood nematodes colonize the pine trees, the river source arthrosporium inoculant is inoculated into the pine trees, so that the tree vigor of the pine seedlings can be effectively enhanced, and a better prevention effect is achieved.

The invention relates to application of a nitrostyrolene compound in preventing, controlling or resisting plant pathogenic nematodes and a preparation of the nitrostyrolene compound, and relates to the field of pesticides. The nitrostyrene compound is selected from the group consisting of beta-nitrostyrene, trans-nitrostyrene, trans-4-fluoro-beta-nitrostyrene, trans-4-bromo-beta-nitrostyrene, 4-methoxy-beta-nitrostyrene, trans-4-(2-nitrovinyl) cyanobenzene, 1-(3-fluorophenyl)-2-nitroethylene, (E)-1-fluoro-2-(2-nitrovinyl) and one or more of benzene. The nitrostyrene compound shows excellent insecticidal activity on plant root-knot nematodes and pine wood nematodes, has the advantages of simple structure, easiness in synthesis, good control effect and the like, and has a good application prospect in the aspect of controlling root-knot nematode diseases and pine wood nematode diseases. The compound can be applied to development of novel pesticide preparations for killing root-knot nematodes and pine wood nematodes.

The invention belongs to the technical field of MOFs-biomass composite carbon matrix preparation, and particularly relates to a preparation method and application of a high-performance solid hydrogen storage material, and the high-performance solid hydrogen storage material is a ZIF-8-pine sawdust composite carbon matrix; the preparation method of the high-performance solid hydrogen storage material comprises the following steps: S1, carrying out acid pickling treatment on biomass, washing the biomass with deionized water until the biomass is neutral, and drying the biomass for later use; s2, performing carbonization treatment on the biomass obtained in the step S1 in an inert protective atmosphere to obtain a carbon precursor; and S3, grinding and mixing the carbon precursor obtained in the step S2 and a chemical activator, putting the mixture into a self-made reactor, sealing after all air in the reactor is exhausted, and carrying out an activation reaction. The MOFs and pine sawdust composite carbon substrate with a high specific surface area is prepared by adopting a method which is simple in process, green, environment-friendly, economical and efficient, and the MOFs and pine sawdust composite carbon substrate has a three-dimensional interconnected pore structure, is adjustable in specific surface area and has relatively high hydrogen storage capacity.

The invention relates to the field of agricultural protection preparations, in particular to preparation of gold nanoclusters and application of the gold nanoclusters to prevention and treatment of plant parasitic nematodes. The invention provides a preparation method of a gold nanocluster, which comprises the following steps: preparing by using HAuCl4 and L-His to obtain an L-type histidine modified gold nanocluster; the preparation method comprises the steps that a HAuCl4 aqueous solution and an L-His aqueous solution are evenly mixed and then incubated, an obtained reaction solution containing L-His-AuNCs is centrifuged and then subjected to aftertreatment such as ultrafiltration, and the gold nanocluster is obtained. The gold nanocluster can be used for preventing and treating pine wood nematodes.

The present disclosure provides a method for identifying a pine wood nematode-infected discolored wood in a mixed coniferous and broadleaf forest, including inputting a pine forest image of the mixed coniferous and broadleaf forest to be identified into a trained identification model for the pine wood nematode-infected discolored wood to identify the pine wood nematode-infected discolored wood in the mixed coniferous and broadleaf forest, wherein the trained identification model is improved based on a you Only Look Once version 5 small (YOLOv5s) model by connecting a feature-filtering module after a Neck; constructing a feature-enhancing module to replace a C3 module in a Backbone; constructing a convolution-transformer module based on multi-head self-attention (MSHA) to connect after a last layer of residual units in the Backbone; constructing, by Group Shuffle Convolution (GSConv), a multi-scale feature fusion layer to replace an ordinary convolution in the Neck.

The invention relates to the technical field of image data processing, and discloses a pine wood nematode disease epidemic wood monitoring method and system based on a remote sensing satellite and a storage medium. The model is trained by using the tile sample data containing the labels with different lesion degrees, so that the diseased wood with different lesion degrees can be identified, the efficiency is high, the selection of different feature combinations and the design of different monitoring methods for different lesion wood scenes are avoided, the obtained pine wood nematode disease change degree is more accurate, and the accuracy of the pine wood nematode disease change degree is improved. And clearer guidance is provided for subsequent epidemic wood removal and treatment work. And fusion of a remote sensing information extraction and monitoring technology means and a deep learning technology means is realized, image enhancement processing means such as radiation enhancement, resolution enhancement and the like are utilized, the saliency of the range graphic information of the pine wood nematode disease is expanded, and meanwhile, an all-around pseudo-pattern spot removal method is utilized, so that the method is more efficient and efficient. And the monitoring accuracy of the diseased wood is greatly improved.

The invention discloses arthrobotrys guangdongensis and application of the arthrobotrys guangdongensis in prevention and treatment of pine wood nematode diseases. The invention relates to Arthrobotrys guangdonensis 20GD2519A, which is preserved in China General Microbiological Culture Collection Center (CGMCC) on November 15, 2021, the address of the Arthrobotrys guangdonensis is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing, the postal code is 100101, and the preservation number is CGMCC No.23849. The Arthrobotrys guangdonensis 20GD2519A has the advantages that the Arthrobotrys guangdonensis 20GD2519A can be used for preparing a microbial inoculum; the invention directly aims at pathogenic nematodes, inhibits and kills nematodes, and reduces nematode density. The strain has strong sporulation ability, can maintain good hereditary stability, and still has high fatality rate to pine wood nematodes after continuous subculture. The survival rate of pine trees inoculated with the arthrobotrys guangdongensis suspension in advance can reach 72%.

The invention discloses a pesticide compound composition of abamectin and dsRNA (double-stranded ribonucleic acid) and application of the pesticide compound composition in prevention and control of nematodes. According to the invention, dsRNA is respectively designed and synthesized for five Mcm genes of bursaphelenchus xylophilus, and nucleotide sequences of positive-sense strands of the dsRNA are respectively shown as SEQ ID No.1-SEQ ID No.5; the synthesized dsRNA and abamectin of different components are compounded to obtain the pesticide compound composition, the pesticide compound composition shows a remarkable synergistic effect in the aspect of preventing and treating pine wood nematode diseases, and the nematode killing effect of combined use of the dsRNA and the abamectin is superior to that of single use of any agent; the pesticide compound composition has the potential to become a novel trunk injection for preventing the pine wood nematode disease.

The invention provides application of a pseudomonas chlororaphis strain Rhs-P27 in prevention and treatment of pine wood nematode diseases, and relates to the technical field of agricultural environmental microorganisms. In particular to a Pseudomonas chlororaphis strain Rhs-P27 separated from rhizosphere soil of Chinese pines and application of the Pseudomonas chlororaphis strain Rhs-P27 in prevention and treatment of pine wood nematode diseases. The strain is preserved in the China Center for Type Culture Collection in Wuhan University on December 18, 2024, and the preservation number is CCTCC (China Center for Type Culture Collection) 20242846. The in-vitro poisoning activity of the strain Rhs-P27 on pine wood nematodes can reach 100% within 24 hours; a fermentation filtrate and a zymophyte suspension of the strain Rhs-P27 have a remarkable inhibition effect on the propagation of the pine wood nematodes; the prevention effect of a zymophyte suspension of the strain Rhs-P27 on the pine wood nematode disease of biennial pinus tabulaeformis potted seedlings can reach 45%, and the density of pine wood nematode in pine trees can be remarkably reduced; the pseudomonas chlororaphis strain Rhs-P27 disclosed by the invention has a good application prospect in the field of pollution-free prevention and treatment of pine wood nematode diseases.

The invention relates to a preparation method and application of carbon nanosphere modified biomass monolithic composite porous carbon, and belongs to the field of energy and chemical industry, and the preparation method comprises the following steps: S1, cutting pine into pine chips, drying, and carbonizing at high temperature to obtain a carbonized product; s2, dipping the carbonized product in a hydrochloric acid solution, then washing the carbonized product to be neutral, dehydrating the carbonized product, and polishing the dehydrated carbonized product; s3, putting the composite porous carbon into a glucose solution, carrying out vacuum-assisted impregnation, transferring into a hydrothermal reaction kettle, carrying out hydrothermal carbonization, drying, and carrying out constant-temperature chemical conversion; and S4, placing the composite porous carbon in a potassium bicarbonate solution for vacuum impregnation, drying and dehydrating, placing in a tubular furnace for constant-temperature chemical conversion to obtain a converted and carbonized product, impregnating in hydrochloric acid, washing, and drying. The specific surface area of the integral composite porous carbon is effectively increased, the electrode / electrolyte interface contact characteristic is remarkably optimized, and the pore channel space utilization rate and the energy storage performance are synchronously improved.

The utility model relates to the technical field of laser cutting, in particular to a pine board laser cutting smoke dust adsorption device which comprises a cutting platform, a smoke suction assembly and a smoke guide cover, a moving mechanism is arranged on the cutting platform, and a laser cutting device is arranged on the moving mechanism. The smoke suction assembly is arranged on the moving mechanism, synchronously moves along with the moving mechanism and is used for adsorbing smoke dust generated during laser cutting, the smoke suction assembly comprises an adsorption mechanism and a smoke suction nozzle connected with the output end of the adsorption mechanism, and the smoke guide cover is arranged on the periphery of the laser cutting equipment. Smoke dust generated during laser cutting is guided upwards through the smoke guide cover and then adsorbed upwards, a specific flowing path is provided for the smoke dust, the adsorption effect is optimized, the smoke suction assembly is prevented from getting close to laser cutting equipment, and the smoke suction assembly is prevented from getting close to the laser cutting equipment. The influence of negative pressure generated when the smoke suction assembly sucks smoke on airflow near the cutting head is reduced.

The invention discloses a target object image region segmentation method and device based on image recognition. The method comprises the following steps: acquiring an acquired pine forest aerial image; based on the collected image, obtaining a processing image mixed with at least two regions through cutting; training a first target recognition model by taking the processed image as a training sample; constructing an initial second target recognition model based on the trained first feature extraction module and an untrained second region detection module, and training by taking the collected image as a training sample to obtain a second target recognition model; and performing pine wood nematode disease region boundary segmentation based on the image region of the initial position of the pine wood nematode disease region identified by the second target identification model and the neighborhood region image to obtain the pine wood nematode disease region boundary. According to the invention, the identification accuracy of the pine wood nematode disease tree area is improved, and the phenomenon of misidentification or missed identification of the pine wood nematode disease tree area is reduced.

The invention relates to the technical field of organic chemistry, in particular to application of pyrazine compounds in the aspect of killing nematodes. The pyrazine compound has good nematicidal activity on pine wood nematodes, root-knot nematodes and aphelenchoides besseyi, and part of the pyrazine compound also has good activity on root knot nematode diseases caused by the root-knot nematodes, so that the pyrazine compound has good application prospects in the aspect of root knot nematode disease resistance.

The invention relates to the technical field of pest prevention and control, in particular to a method for treating pine wood nematode infected wood through poria cocos. The method comprises the following steps: cutting down current-year epidemic wood, and treating tree heads, tree trunks and boughs to complete peeling and tendon retaining treatment; uniformly cutting the trunk and the boughs into standard cut-logs; the method comprises the following steps: selecting fresh poria cocos sclerotium skin tissues as strains, and cutting according to an area greater than 50% of a cross section; pit pits are dug in the sunny slope; laying small branches on the bottom layer, placing the cut-logs in the pits, fixing the cut-logs with non-woven fabrics after inoculation, covering the upper layer with thin branches and leaves, and covering with soil; the two-stage biological process of mycelium planting, propagation expanding and pine wood nematode and medium insect killing is sequentially completed through a soil heat and moisture preservation environment; the propagation path of pine wood nematodes is blocked through the natural isolation effect of soil, deadwood obtained after poria cocos is subjected to biological verification and then smashed on site to return to forests or be made into fuel particles, and harmless and resource recycling of epidemic wood is achieved. According to the method, the problems of pine wood nematode propagation and epidemic wood treatment are synchronously solved.

The present application relates to the technical field of nematicides for pine wood nematode disease, and specifically discloses a highly efficient compound nematicide for pine wood nematode disease and a preparation method thereof. The components of the compound nematicide include nematicides and adjuvants, the adjuvants include synergists, surfactants, solvents and rejuvenation agents, the nematicide is a mixture of emamectin benzoate and rudol, the synergist is piperonyl butoxide, the solvent includes DMF and chloride solution, and the rejuvenation agent includes amino oligosaccharide aqueous solution; in the compound nematicide, the mass fraction of rudol is 10-20%, the mass fraction of emamectin benzoate is 0.5-3.5%, and the mass fraction of the rejuvenation agent is 2-8%. The compound nematicide of the present application can also have a significant killing effect on nematodes that have developed emamectin benzoate resistance, and the selection of rejuvenation agents reduces the nematode's gnawing on pine trees, promotes the repair of internal damage to pine trees, and fully realizes the treatment of pine trees infected with pine wood nematode disease.

The invention belongs to the technical field of forest tree disease control, and particularly discloses an efficient pine nematode disease resistant inducer based on salicylic acid and dicyclohexylamine as well as a preparation method and application thereof, and the efficient pine nematode disease resistant inducer mainly comprises salicylic acid, cyclohexanediamine, a synergist (such as organic silicon) and an environment-friendly solvent (such as ethanol or diethyl ether). Wherein salicylic acid and dicyclohexylamine are used as core active ingredients, and the resistance of pine trees to pine wood nematode diseases is remarkably improved by stimulating the immune defense system of the pine trees. The inducer has the advantages of being environmentally friendly, moderate in cost, free of residues and pollution and the like, is suitable for multiple fields such as forest control and seedling treatment, can effectively reduce the occurrence rate and loss of the pine wood nematode disease, and promotes sustainable development of forestry. Through a specific preparation process, all the components are uniformly mixed to prepare a solution which is easy to apply, so that efficient protection on pine trees is realized.

The invention relates to a pine-based hard carbon material as well as a preparation method and application thereof. The preparation method of the pine-based hard carbon material comprises the following steps: carrying out carbonization treatment on pine, then carrying out acid pickling, and finally carrying out segmented high-temperature treatment to obtain the pine-based hard carbon material. The pine-based hard carbon material is used for preparing the negative electrode of the sodium-ion battery, so that the sodium-ion battery has high specific capacity and good rate capability.

The utility model relates to the related technical field of pine wood, in particular to a pine wood nematode disease monitoring and sampling tool box which comprises a tool box body, an upper cover is rotationally connected to the upper surface of the tool box body, a protection mechanism is arranged on the surface of one side of the tool box body, and a carrying mechanism is arranged on the upper surface of the upper cover. Through arrangement of a limiting groove, a first spring, a first connecting column, a first protective plate and a second protective plate, during use, when tools in the tool box need to be protected, the first protective plate and the second protective plate are arranged firstly, and when the tool box collides with foreign matter, the first protective plate and the second protective plate are arranged; impact force can be transmitted to a first spring through a first protective plate or a second protective plate and a first connecting column, and then the impact force can be rebounded back through the first spring, so that the situation that foreign matter directly collides with the tool box, and consequently tools in the tool box are damaged is prevented; and the first connecting column can be stored in the limiting process of the first spring.

The utility model relates to the technical field of forestry pest prevention and control, in particular to a pesticide injection device for preventing and controlling pine wood nematode disease, which comprises a main body, a first rotating groove and a second rotating groove are arranged at the top of the main body, and a first miniature water pump shell is rotatably connected in the second rotating groove. A second fixing block is fixedly connected to the end, away from the first micro water pump shell, of the main body, the first micro water pump shell, the main body and the second fixing block are connected through a second hose, and a second micro water pump shell is rotationally connected into the first rotating groove; a first fixing block is fixedly connected to the end, away from the second micro water pump shell, of the main body, and the second micro water pump shell, the main body and the first fixing block are connected through a first hose. Through the design, the overall practicability of the medicine injection device for preventing and treating the pine wood nematode disease can be improved.

The invention discloses a bacillus tequilensis strain HN-1 and application thereof, and belongs to the technical field of biological control of plant parasitic nematodes. The strain HN-1 is identified as bacillus tequilensis, the preservation date is July 28, 2025, the strain HN-1 is preserved in the China Center for Type Culture Collection (CCTCC), the preservation number is CCTCC NO: M 20251718, and the preservation number is CCTCC NO: M 20251718. The invention discovers that the bacillus tequilensis strain HN-1 has good insecticidal activity on meloidogyne incognita and pine wood nematode for the first time; the fermentation liquor and fermentation metabolites of the strain HN-1 can be used as a liquid fungicide, or the fermentation liquor is used for preparing a solid fungicide, and the fungicide can be used for preventing and treating meloidogyne incognita and pine wood nematodes in fields.

The invention relates to the technical field of preparation of ecological boards, in particular to a peculiar smell removing and virus resisting ecological board modified by using an isatis root active substance. Comprising the following components in parts by weight: 1 to 5 parts by weight of a modified molecular nest structure material, 95 to 100 parts by weight of pine wood, 6 to 12 parts by weight of an isocyanate adhesive, 10 to 15 parts by weight of melamine resin and the balance of decorative paper, the modified molecular nest structure material is obtained by performing surface modification on a mesoporous nano-silica material through maleic anhydride, impregnating an active component of radix isatidis and performing surface modification by using polylysine, and the active component of radix isatidis is attached into pores, so that the adhesive force of the active component of radix isatidis is enhanced, the active component is protected from being influenced by an external environment, and the service life of the material is prolonged. And meanwhile, the modified molecular nest structure material acts on the veneering melamine paper, so that the antibacterial property of the veneer material is improved, and the ecological board achieves the functions of mildew prevention, peculiar smell removal and virus resistance.

Belongs to the technical field of pine wood nematode disease prevention and control, and particularly relates to a preparation method and application of a pyrazole-chitosan oligosaccharide derivative. Chloroacetyl chloride serves as an acylating agent, chitosan oligosaccharide is acetylated, and chloroacetyl chitosan oligosaccharide is generated; then, a pyrazole molecule with nematicidal activity is connected to the Cl site of the chloracetyl chitosan oligosaccharide through ammonolysis reaction, and the novel pyrazole-chitosan oligosaccharide derivative is obtained. The derivative has relatively high contact activity on pine wood nematodes, and LC50 of 24 hours and LC50 of 48 hours are 4.814 mM and 4.061 mM respectively; the chitosan oligosaccharide can remarkably inhibit multiple physiological indexes such as movement, feeding and service life of the pine wood nematodes, and is good in stability, low in molecular weight of the chitosan oligosaccharide, good in water solubility, green and environment-friendly, and the plant toxicity is remarkably reduced. The derivative has a good application prospect in the aspect of controlling the pine wood nematode disease and can be applied to prevention and control of the pine wood nematode disease.

The invention provides an abnormal color-changing pine monitoring method and system, and particularly relates to the technical field of monitoring and evaluation.The method comprises the steps that firstly, an unmanned aerial vehicle remote sensing image of a target forest area is obtained, and a preprocessing data set containing abnormal color-changing pine and withered pine labels is generated through clipping, framing and labeling processing; the data set is input into a target detection model for training, the model comprises a feature extraction layer based on a lightweight convolutional network, an attention mechanism layer integrating a channel and a space attention sub-layer, and a feature fusion layer adopting a bidirectional weighted feature pyramid structure, and finally a pine tree state recognition model is obtained. Based on pine tree coordinate data output by the model, multi-factor weight collaborative analysis is carried out in combination with multi-source environmental factors, a pine wood nematode disease diffusion risk probability graph is generated, and monitoring and early warning information is output according to the pine wood nematode disease diffusion risk probability graph. And efficient and accurate pine tree disease monitoring is realized.

The invention discloses a compound composition of fluopyram and dsRNA (double-stranded ribonucleic acid) and application of the compound composition in prevention and control of nematodes. The method comprises the following steps: soaking pine wood nematodes by adopting a fluopyram medicament with LC20 concentration, collecting samples at different time points respectively, and carrying out transcriptome analysis. The pesticide compound composition for effectively poisoning and killing the pine wood nematodes is obtained by comparing gene expression differences at different time points, screening out remarkably up-regulated detoxification genes BxCYP, BxCES and BxUDP, designing and synthesizing double-stranded RNA (ds BxCYP, ds BxCES and ds BxUDP) according to the detoxification genes, and compounding the double-stranded RNA with fluopyram. The pesticide compound composition has a remarkable synergistic prevention and control effect on pine wood nematodes, is expected to become a novel and efficient pine wood nematode prevention and control agent, and provides a new strategy and theoretical basis for prevention and control of pine wood nematode diseases.

The invention relates to an unmanned aerial vehicle pine wood nematode disease detection method based on multi-modal features. The method comprises the following steps: constructing an image-text multi-modal data set to provide prior semantic knowledge; using vegetation index threshold mask filtering (VTMF) to enhance spectral difference and suppress noise; frequency domain denoising and feature retention are carried out by using a W-KAN module fusing wavelet transform and KAN attention; modeling a long-distance spatial dependency relationship through a four-domain diffusion diagram convolution residual attention module (Q-DGCRAB); an epidemic situation semantic enhancement detection module (ESADM) is introduced to realize text-visual feature fusion; the training process is dynamically optimized by adopting a forest guardian collaborative optimization algorithm (FGA-CE); according to the method, the problem of low pine wood nematode disease detection precision caused by complex background, repeated texture, significant noise and insufficient semantic information in a high-altitude unmanned aerial vehicle image is solved, the pine wood nematode disease detection precision and robustness in a complex forest stand environment are significantly improved, and the pine wood nematode disease can be accurately monitored in early stage in real time.

The invention discloses a durable bio-based asphalt waterproof coiled material and a preparation method thereof, and relates to the field of waterproof coiled materials. The composite material is formed by coating a base cloth with modified bio-based asphalt, the modified bio-based asphalt is lignin-modified bio-based asphalt, the bio-based asphalt is filled with oil-immersed wood fibers, and the oil-immersed wood fibers are formed by impregnating pine fibers and nano naphthenic oil. The nano naphthenic oil is prepared by mixing nano zinc oxide and naphthenic oil; through triple synergy of lignin modification, wood fiber reinforced oil locking and nano zinc oxide slow-release corrosion prevention, the purpose that the environment-friendly property and the high-performance index of the bio-based material are achieved at the same time is achieved.