Purification screening device for laodelphax striatellus imagoes from fields

Abstract

The invention discloses a purification screening device for laodelphax striatellus imagoes from fields. The purification screening device for the laodelphax striatellus imagoes from the fields comprises a box body (1), wherein an inner cavity of the box body (1) is divided into a bottom layer (4), a middle layer (5) and a top layer (6) by a lower clamping plate (2) and an upper clamping plate (3), the position of a hole of the lower clamping plate (2) and a corresponding position of a hole of the upper clamping plate (3) are provided with a lower sample separation screen (8) and an upper sample separation screen (9) respectively, the lower sample separation screen (8) and the upper sample separation screen (9) are different in bore diameter, the lower side of the top wall of the top layer (6) and the lower side of the upper clamping plate (3) are respectively provided with an insect repelling lamp (10), the insect repelling lamps (10) correspond to the upper sample separation screen (9) and the lower sample separation screen (8) respectively, secondary insect repelling lamps (11) are further arranged on the side wall, far away from the lower sample separation screen (8) and the upper sample separation screen (9), of the box body (1), and a laodelphax striatellus outlet (12) and a miscellaneous insect outlet (13) are formed in the side wall of the middle layer (5) and the side wall of the top layer (6) respectively, and the side wall of the middle layer (5) and the side wall of the top layer (6) are adjacent to the secondary insect repelling lamps (11). The purification screening device for the laodelphax striatellus imagoes from the fields is simple in structure, and can efficiently separate the laodelphax striatellus imagoes which are uniform and strong in vital force.

Description

technical field [0001] The invention relates to the field of agricultural science and technology, in particular to a device for purifying and screening adults of the field-sourced brown planthopper with simple structure and high separation efficiency. Background technique [0002] The gray planthopper belongs to the family Plantagoidae of the order Homoptera. It is mainly distributed in East Asia, Southeast Asia, Africa, Europe and other vast areas in the world. It is also widely distributed in major rice areas in my country, especially in the middle and lower reaches of the Yangtze River and North China. . [0003] SBPH has a wide range of hosts, especially gramineous plants. In addition to rice, wheat, barley, sorghum, corn and other large-scale planted crops, it also includes daughter daughter, wild carrot, cricket grass, English white, kanmai, youcao, wormwood, bamboo leaf grass, paspalum, Bluegrass, plantain, barnyardgrass, three-edge grass, foxtail, yellow mustard, ri...

AI Technical Summary

Problems solved by technology

[0006] However, because a variety of insects grow in the field ecosystem, there will be a lot of impurities and miscellaneous insects mixed in the SBPH colony captured from the field, including natural enemies of SBPH, ladybugs, spiders and other insects; and the field The ages of the captured SBPH are not uniform, and the nymphs and adults of different instars are mixed; in addition, due to the damage to the SBPH by external forces during the capture, many of them will die

If it is applied directly, miscellaneous insects, dead insects of SBPH and irregular instars of SBPH will seriously affect the reliability of the experimental results

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