6 results about "Parasitism" patented technology

This invention discloses a precise and efficient breeding method for *Cyprinus dorsiflorus* based on habitat reconstruction. The breeding pond is divided into a parent mussel rearing area and a glochidia larva metamorphosis development area by a barrier wall consisting of an upper, switchable isolation net and a lower, fixed partition. The glochidia larva metamorphosis development area is constructed with a 20-mesh movable net forming two layers. After laying the substrate, mature parent mussels and host fish are introduced. The temperature is controlled at 22.0–24.0℃, and fertilization is promoted with a water flow of 0.08–0.15 m / s, while glochidia larvae are cultivated with a water flow of 0.06–0.10 m / s. Once the glochidia larvae in the brood pouch mature, the isolation net is opened, and the water flow is adjusted to 0.02–0.05 m / s to promote parasitism. Every 6–8 days, the parasitized and molted parent mussels and host fish are circulated and exchanged. After the molted mussels molt, they are threaded through the net and placed into the lower substrate for in-situ cultivation. This method achieves in-situ integration of fertilization, parasitism, and cultivation, significantly improving the parasitism rate and the survival rate of juvenile mussels. It is suitable for the preservation, propagation, and large-scale seedling cultivation of *Cyprinus cuspidatum*.

The present application provides a strain of Trichoderma asperellum TAZ19, a biocontrol agent and application thereof, wherein the Trichoderma asperellum TAZ19 is preserved in China Center for Type Culture Collection on October 25, 2024, and the preservation number is CCTCC M 20242341. The active ingredient of the biocontrol agent comprises the above-mentioned Trichoderma asperellum TAZ19 strain, and the Trichoderma asperellum TAZ19 strain is one or more of conidium, mycelium, fermentation filtrate or active extract thereof. The Trichoderma asperellum TAZ19 has excellent antagonistic effect on multiple plant disease pathogens such as Diaporthe phaseolorum, multiple Fusarium oxysporum, Valsa mali, and Botryosphaeria dothidea, has broad-spectrum antibacterial property, fast growth, high antibacterial activity, strong parasitism, and good salt and alkali tolerance, and has a growth-promoting effect on plants. The Trichoderma asperellum TAZ19 can be widely applied to the prevention and treatment of multiple plant diseases such as pine branch and stem rot, wheat stem base rot, tomato wilt, and has a wide application prospect.

This invention relates to formula I [Case 1] The present invention relates to the compound TIFF2026516766000021.tif30170 (wherein the formula, the variables have the meanings defined herein), compositions comprising the same, combinations of active compounds comprising the same, and their use for protecting growing plants and animals from attack or parasitism by invertebrate pests, as well as seeds comprising such compounds.

This invention relates to the field of genetic engineering technology, specifically to sunflowers. HaMAPK6‑1 Application of genes in improving sunflower resistance to broomrape parasites. This invention obtains complete genome sequences from sunflower transcriptome data. HaMAPK6‑1 Gene sequence, and HaMAPK6‑1 The gene was transferred into the native plant, sunflower, using transient conversion technology, and overexpressed. HaMAPK6‑1 In sunflower plants containing the gene, an experiment was conducted on transgenic plants with orobanche parasitism, and it was found that overexpression of the gene was observed. HaMAPK6‑1 The genetically modified sunflower showed significantly enhanced resistance to broomrape parasites compared to wild-type sunflowers, a finding of great value for molecular breeding and application of sunflowers.

The utility model discloses a kind of parasitic wasp parasitic efficiency monitors, it is related to pest control technical field, its scheme includes: parasitic wasp rearing device and observation device: the parasitic wasp rearing device is used to rear parasitic wasp, first opening with openable and closable is provided on the side wall of the parasitic wasp rearing device, the first opening is used for parasitic wasp to pass through;The observation device is set to the periphery of the parasitic wasp rearing device, the observation device surface is provided with gauze for parasitic wasp to pass through, host larva is placed in the observation device, first monitor is provided at the top of the observation device.Such setting, the parasitic process of the device can be monitored to parasitic wasp, and its parasitic efficiency is counted, overall convenient to use, the data obtained is accurate, solve the time-consuming and labor-consuming, data error big problem of traditional manual observation and statistics, can provide effective data support for subsequent parasitic wasp warehouse release operation.

This invention proposes a screening method for biocontrol Trichoderma strains based on the dual criteria of oomycete parasitism and lethality. Belonging to the field of agricultural biotechnology, this invention addresses the technical problem that existing screening techniques often rely solely on the growth inhibition rate of confrontation cultures, making it difficult to distinguish between the antibacterial and lethal effects of biocontrol bacteria. This invention establishes a progressive screening system. The method uses highly pathogenic oomycetes, namely *Phytophthora capsici* (… Phytophthora capsici ) and ultimate pyrophyllium ( Globisporangium ultimum Using oomycetes as the target, and based on the determination of growth inhibition rate through confrontation culture, this invention creatively introduces a step of "pathogen re-isolation and detection of activity based on oomycete selective culture medium" combined with microscopic observation of hyperparasitism. This method effectively eliminates false-positive strains, significantly improves the accuracy of biocontrol strain screening and field efficacy, and is suitable for large-scale exploration of biocontrol resources.