7 results about "Bactrocera" patented technology

The application discloses CTL-S1 A gene and an application of miR-let-7 in regulation of reproductive development of drosophila bacterea CTL-S1 The gene is specifically highly expressed in ovaries of drosophila bacterea, and the expression of the gene is inhibited by RNA interference CTL-S1 The expression of the gene can reduce the hatching rate of offspring. Through analysis of an RNA immunoprecipitation double luciferase reporter system, it is found that miR-let-7 and CTL-S1 there is a target relationship. Overexpression of miR-let-7 can cause CTL-S1 the expression amount of the gene to be significantly reduced, and a phenotype similar to the expression of the gene being inhibited by RNA interference CTL-S1 CTL-S1 CTL-S1 CTL-S1 CTL-S1 CTL-S1 CTL-S1 CTL-S1 CTL-S1 CTL-S1 CTL-S is generated, and the hatching rate of offspring is reduced. The application provides a potential gene target for developing a genetic control strategy for destroying the reproduction of drosophila bacterea, provides a new idea for subsequent biological control of insects by using the sterile technique, and has a wide application prospect.

The utility model relates to the technical field of trapping and killing of bactrocera dorsalis, in particular to a bactrocera dorsalis trap. Comprising a base table, the base table is of a circular plate structure, an annular base is fixedly arranged at the top end of the base table, an inner annular groove and an outer annular groove are formed in the upper portion of the annular base, the annular base is fixedly connected with an inner-layer separation net and an outer-layer shell through the inner annular groove and the outer annular groove respectively, and a supporting base is fixedly arranged on one side of the annular base; two springs are fixedly connected to one side of the supporting seat, a movable plate is fixedly connected to one side of each spring and is of a transverse T-shaped platy structure, the tail end of each movable plate is fixedly connected with one side of the outer-layer shell in an inserted mode, and a cylindrical insect trapping bottle is arranged on the center side of the top end of the annular seat. The utility model aims to solve the technical problems that in the prior art, pesticides are directly sprayed on fruits or fruit trees to prevent and control citrus fruit flies, but pesticide residues are easily generated on the fruits due to multi-frequency spraying, and the ecological environment is threatened.

The invention relates to the technical field of prevention and control of bactrocera cucurbitae, in particular to high-temperature-resistant beauveria bassiana WZS-5 and application thereof to prevention and control of bactrocera cucurbitae, and the preservation number of the high-temperature-resistant beauveria bassiana WZS-5 is GDMCCNO: 66358. The optimal growth temperature of the strain is 28-30 DEG C, and the strain still keeps certain growth and reproduction capability at the high temperature of 35 DEG C. Biological assay results show that under the conditions that the temperature is 30 DEG C and the relative humidity is 70%, the prevention and treatment effect of the strain on beauveria bassiana is remarkably better than that of common beauveria bassiana, and the accumulative death rate of bactrocera cucurbitae adults under the concentration of 1 * 10 < 9 > spores / mL reaches 89%. Results show that the strain has excellent high-temperature adaptability and strong pathogenic activity, can efficiently control bactrocera cucurbitae populations in tropical and subtropical high-temperature environments, and provides new microbial resources and technical approaches for green prevention and control of fruit and vegetable pests.

The utility model provides a kind of convenient egg taking device of real fly, comprising: attractant containing cup and oviposition needle insertion cup, attractant containing cup and oviposition needle insertion cup are connected by thread, the oviposition needle insertion cup is installed in the upper of attractant containing cup, the oviposition needle insertion cup surface is evenly provided with needle hole with 0.1-1mm diameter. The device is simple in structure, reasonable in design, easy to assemble and use, can quickly and conveniently collect the egg particles of Bactrocera dorsalis and Bactrocera cucurbitae, and the size of oviposition hole limits the oviposition of fruit fly, avoids the phenomenon that different kinds of fly larvae will appear when collecting larvae in rotten melon and rotten fruit in field, and the application scenario is wide.

The invention relates to the field of pesticide preparations, and discloses a bactrocera cucurbitae and South Asia fruit fly repellent and application thereof.The repellent is a preparation with phenylacetaldehyde as an effective component, a phenylacetaldehyde solvent in the repellent is ultrapure water or dimethyl sulfoxide, and the content of phenylacetaldehyde in the repellent is 0.005-0.2% by weight. The phenylacetaldehyde repellent can significantly reduce the oviposition behaviors of the two fruit flies on host plants, so that fruits are effectively protected from being invaded by pests; in addition, the repellent disclosed by the invention can also play a role in preventing and controlling various fruit fly pests at the same time, and has important significance on comprehensive management of pests of various crops. Therefore, when the phenylacetaldehyde is used for repelling pests, the use amount of chemical pesticides can be reduced, the pollution to the ecological environment is reduced, the requirements of modern green agriculture and sustainable development are met, and the phenylacetaldehyde has a good application value in pest repelling, preventing and controlling of bactrocera cucurbitae or South Asia fruit flies.

The invention relates to the technical field of green prevention and control of agricultural pests, in particular to a female bactrocera cucurbitae attractant based on volatile matters of bitter gourd fruits and leaves and application of the female bactrocera cucurbitae attractant. The active components of the female bactrocera cucurbitae attractant come from volatile matters of fruits and leaves of bitter gourds, and comprise 4-terpilenol, verbenol, alpha-terpilenol, capraldehyde, beta-caryophyllene and perillaldehyde. The main components of the female bactrocera cucurbitae attractant are all derived from natural plant volatile matters, the attractant is environment-friendly, a foundation is laid for field monitoring of bactrocera cucurbitae, and a new thought is provided for green prevention and control of bactrocera cucurbitae.

The invention relates to the technical field of agricultural disaster monitoring, in particular to an early recognition method for bactrocera hippophae pests based on unmanned aerial vehicle multispectral imaging. The method comprises the following steps: carrying out flight data acquisition in a sea-buckthorn key phenological period through an unmanned aerial vehicle multispectral imaging system; carrying out preprocessing and radiation correction on the image data; extracting a hippophae rhamnoides canopy region and calculating spectral characteristics of the An improved deep convolutional neural network model is constructed and trained, the model integrates a multi-scale feature fusion structure and a channel attention mechanism, and a spatial pattern and internal association of spectral features can be deeply analyzed; and finally, the model is utilized to realize early recognition and positioning of the bactrocera hippophae pests. According to the invention, early weak spectral response changes caused by insect pests can be effectively captured, and the automation degree, timeliness and accuracy of identification operation are improved.