Rice plant hopper field investigation and collection device

Abstract

The invention provides a rice plant hopper field investigation and collection device. The technical scheme provided by the invention is that the rice plant hopper field investigation and collection device is characterized in that the device comprises a cylindrical cover body, the inner chamber of the cover body is communicated with an air extraction pipe, and one end of the cover body is provided with an opening to allow rice plant straws to pass. According to the technical scheme provided by the invention, firstly the entire rice plant is wrapped in the chamber by using the cover body to enable the cover body to be in a closed state, then a negative-pressure device communicated with the air extraction pipe is turned on, the negative-pressure device produces very strong sucking force, air in the cover body is discharged at high speed under the effect of the sucking force, instantaneous vacuum is produced in the cover body, rice plant hoppers on the rice plant in the cover body are sucked into the air extraction pipe along with the air under the effect of differential pressure, the negative-pressure device stops running after the rice plant hoppers are fully sucked, and technicians perform data statistics to the extracted rice plant hoppers. The investigation and collection device has the advantages that the labor intensity of observers is reduced and the working efficiency and the accuracy of observed data are obviously improved.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a field investigation and collection device for rice planthoppers. Background technique [0002] Rice planthopper is the most important pest of rice in my country. In particular, the brown planthopper has the widest occurrence area and the most serious damage. It is one of the important obstacles to rice production. The occurrence of rice planthopper is characterized by suddenness, concealment and explosiveness. The premise of its effective prevention and control is accurate forecasting. The premise of accurate forecast is field investigation. The traditional field investigation method of rice planthoppers generally adopts the plate clapping method all over the country: the investigator bends down, gently inserts the porcelain plate into the base of the rice bush with one hand, and quickly pats the rice plant with the other hand 3 times, insect repellent was placed on the plate, and ...

AI Technical Summary

Problems solved by technology

This method requires investigators to bend down and beat the rice bushes manually, which is labor-intensive. At the same time, the sharp rice leaves in the middle and late stages of rice growth often hurt the hands and faces of unprotected investigators; It’s not high, the manual beating has a lot of human factors, and the force of the investigators is often uneven; on the other hand, during the process of quickly lifting the porcelain plate from the base, some worms will jump and fly away, especially the key data for forecasting- Adults; and during rice growth, especially in the early stage of rice growth, rice planthoppers are usually mixed with three lice: SBPH, white-backed planthopper, and brown planthopper. Young nymphs, old nymphs, and adults are mixed and alternated to achieve correct identification The three kinds of rice planthoppers, especially the young nymphs, have high technical requirements and generally need to use a magnifying glass. However, holding the plate with one hand and holding the magnifying glass with the other hand seriously affects the work efficiency in the hot summer season.

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