Natural enemy insect acute toxicity test exposure device

Abstract

The invention discloses a natural enemy insect acute toxicity test exposure device, which comprises a device body and a plurality of partition plates arranged in the device body, wherein openings areformed in the top part and one side of the device body, the plurality of partition plates are arranged in the device body at intervals in the vertical direction, a partition region is formed between every two adjacent partition plates, and a tray is arranged in an arbitrary partition region in a matched mode; a plurality of upright posts are arranged in each tray, every two adjacent upright postsform a group, a fixed region is formed on the inner side of one group of upright posts, and a sample bottle is placed in each fixed region; and a light source assembly is arranged on the outer side ofthe device body and comprises a shell body, a back plate and a plurality of lamp beads connected to one side of the back plate in a matched mode, and the brightness of the lamp beads can be adjusted.

Description

technical field [0001] The present invention relates to the acute toxicity test in the ecological toxicity of chemical pesticide registration to non-target organisms, in particular to an exposure device for the acute toxicity test of natural enemy insects. Background technique [0002] The acute toxicity of chemical pesticides to natural enemy insects is measured by the half-lethal dose. Since the half-lethal dose is the most sensitive point on the dose-response curve, and it is easy to measure, accurate and repeatable, it can be used as a pesticide for the environmental safety of natural enemy insects. Evaluated trial endpoints. Through the acute toxicity test on natural enemy insects, and the mortality rate as the evaluation index, the risk to non-target natural enemy insects after pesticide exposure is determined. . [0003] The existing natural enemy insect toxicity test cannot adjust the distance between the light sources by adjusting the distance between the sliders,...

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Problems solved by technology

[0003] The existing natural enemy insect toxicity test cannot adjust the distance between the light sources by adjusting the distance between the sliders, and the width of the light source cannot be adjusted, so the toxicity test effect is poor. In addition, the existing toxicity test exposure device is not equipped with a column for fixing the sample bottle, and the sample bottle cannot be removed through the column. The sample bottle is fixed, and there is no concave surface on the bottom of the tray, so the fixing effect is poor. The "Guidelines for the Acute Toxicity Test of the Natural Enemy Ladybug of Chemical Pesticides" only briefly describes the method, operation process and principle of the toxicity test

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