Multi-channel stored grain pest fumigant diffusion rate and pest killing efficiency evaluation device
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A technology for evaluating devices and diffusion rates, which is applied in the fields of instruments, computing, and electrical and digital data processing.
Active Publication Date: 2019-09-27
ZHEJIANG FORESTRY UNIVERSITY
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[0003] In the process of grain storage, pests will lurk in the grain of the granary. When fumigation is carried out, it is often impossible to kill the pests deep in the grain due to misjudgment of the diffusion efficiency of the fumigant in the grain, which affects the insecticidal effect. , especially for large granaries
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Embodiment 2
[0059] In this embodiment, the evaluation device of the embodiment is optimized in aspects such as connection and sealing, and the specific technical scheme is as follows:
[0060] The two ends of described paddy filling pipe 2 are provided with external thread, and filling pipe connecting port 6 places are provided with internal thread, and the bottleneck place of test insect bottle 3 is provided with internal thread, and the two ends of paddy filling pipe 2 cooperate by internal and external thread, Respectively connected to the fumigant filling port 4 and the insect test bottle 3 in a threaded seal and detachable connection;
[0061] The fumigant diffusion ball 1 is provided with a bearing bracket 11, and the bearing bracket 11 is fixedly connected with the inner wall of the fumigant diffusion ball 1. The fumigant evaporation container 5 is placed on the bearing bracket 11 and is located at the fumigant filling port. directly below 4;
[0062] The insect test bottle 3 is a...
Embodiment 3
[0068] In this embodiment, an evaluation test is carried out based on the evaluation devices in Embodiments 1 and 2, and evaluation data are obtained to realize the evaluation of fumigant diffusion rate and insecticidal efficiency.
[0069] The evaluation method of the multi-channel stored grain pest fumigant diffusion rate and insecticidal efficiency evaluation device includes the following specific contents:
[0070] (A) Determine the direction of the assessment work
[0071] (a1) Evaluation method: the fumigant is used to conduct the insecticidal test, so as to evaluate the fumigant diffusion rate and the fumigant insecticidal efficiency;
[0072] (a2) Insecticide test variable: determine the independent variable and dependent variable in the insecticide test; 1. Independent variables: ambient temperature, pest hiding depth, fumigant type, fumigant concentration, fumigant dosage, pest type, pest number and fumigation time; 2. Dependent variables: pest stress response, pest...
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Abstract
The invention provides a multi-channel stored grain pest fumigant diffusion rate and pest killing efficiency evaluation device. The device comprises a fumigant diffusion ball, a rice filling pipe and a test insect bottle, the fumigant is filled in the diffusion ball; the rice filling pipe is filled with rice; two ends are blocked by breathable sand cores; the lengths of the rice filling pipes are different. The device is simple in structure, design is reasonable, when an evaluation test is carried out, the rice filling pipe simulates the hiding depth of pests, a plurality of independent variables are adjusted, change data of dependent variables such as pest stress response, pest activity, pest death, pest survival and the like are recorded; therefore, a test data analysis model is established, the evaluation of the diffusion rate and the insecticidal efficiency of the fumigant is realized, an accurate basis is provided for the application of the fumigant in the aspects of grain harm removal and grain storage, potential safety hazards in a granary are reduced, and the catering safety of people is protected.
Description
technical field [0001] The invention relates to the technical field of grain pest removal equipment, in particular to a multi-channel stored grain pest fumigant diffusion rate and insecticidal efficiency evaluation device. Background technique [0002] Fumigant is a kind of pesticide that uses the steam generated during volatilization to poison harmful organisms. It enters the harmful organisms with gaseous molecules and plays a poisonous role. It is often used in the field of grain pest control and grain storage. [0003] In the process of grain storage, pests will lurk in the grain of the granary. When fumigation is carried out, it is often impossible to kill the pests deep in the grain due to misjudgment of the diffusion efficiency of the fumigant in the grain, which affects the insecticidal effect. , especially for large granaries. Therefore, an accurate test device is needed to accurately and efficiently test the diffusion efficiency and insecticidal efficiency of the ...
Claims
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Application Information
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