Callosobruchus maculates standard sample and preparation method thereof

Abstract

The invention relates to the plant quarantine field. As for the Callosobruchus maculates standard sample, the determined Callosobruchus maculates polypide is embedded in the resin, each resin has a Callosobruchus maculates. In the Callosobruchus maculates standard sample, the Callosobruchus maculates is embedded in the resin, the resin raw material is liquid, has good flowability, and can sufficiently flood on the surface of the sample, the sample cannot be dissolved into water after being dried and cured as a film. The resin has extremely high transparency so as to conveniently observe fine structures in the standard sample. Furthermore, the resin has the good inflaming retarding, anti-aging, non-toxic, anti-oxidizing, heat-resisting and insulating performances; the Callosobruchus maculates specimen is embedded in the resin so as to delay the valid period of the standard sample and reduce the standard sample cost. The result difference caused by different references used in different laboratories can be eliminated; and meanwhile, the traceability of the authentication result can be guaranteed so as to guarantee that the accuracy and reliability of the Callosobruchus maculates appearance authentication result play a significant part.

Description

technical field [0001] The invention relates to the field of plant quarantine, in particular to a standard sample of Elephus chinensis, and also relates to a preparation method thereof. Background technique [0002] Four-striped bean elephant ( Bruchus maculatus (Fabricius)) is an important pest in the list of quarantine pests in my country. It was first discovered in the United States and has now spread to most countries and regions in the world. Four-striped bean elephants can reproduce and cause damage in fields and warehouses. It mainly causes serious harm to stored edible beans. Adults lay eggs on bean pods or bean grains, most of the larvae enter directly near the hilum, molt 7-12 days after entering the bean grains, thoracic feet degenerate, eat a lot of food, and cause serious damage, the boreholes on each kidney bean can reach 12 or more. The bean weevil larvae harm all kinds of bean grains in the field and in the warehouse, and the bean grains are bored into e...

AI Technical Summary

Problems solved by technology

The bean weevil larvae harm all kinds of beans in the field and in the warehouse, and turn the beans into empty shells, which cannot be eaten or used for planting, greatly reducing the value of the commodity

However, at present, standard samples are only widely used in metallurgy, non-ferrous metals, chemistry, food additives, etc., the research carried out is relatively in-depth, and the technology has matured, but it is still blank in the field of plant quarantine, and there is no research on insects and insects. In the study of standard samples, many laboratories still use traditional methods in the identification of insect morphology, comparing pictures or specimens preserved in the laboratory for identification, and these specimens come from different sources, and specimens preserved in different laboratories sometimes have morphological differences. Large variances, even wrong specimens

In this way, due to the differences in reference substances, there are great differences and incomparability in the identification results between different laboratories, and the identification results cannot be traced.