Group raising method of feeding spodoptera frugiperda larvae with young corn spears

Abstract

The invention discloses a group raising method of feeding spodoptera frugiperda larvae with young corn spears. The group raising method mainly comprises the steps of paving silver sand at the bottom of a raising box, with different tissue parts of the young corn spears, such as bracteal leaves of the young corn spears, young corn spear cores and young corn spear stigmas as food stuffs, laying thefood stuffs on the surface of a sand layer in a spacing manner to form a multilayer stacking structure for raising the spodoptera frugiperda larvae, screening and separating pupae from sand soil, andcollecting ova of adult insects for completing growth generations of the spodoptera frugiperda. The group raising method is simple in operation flow and safe and reliable, the characteristic that different constituent parts of the young corn spears are used as the food stuffs is fully utilized, surface stacking is constructed in the narrow raising box, a wide stacking structure is formed, the situation that the spodoptera frugiperda larvae are in mutual contact to generate fighting actions can be effectively avoided, aged larvae pupate in the sand through the function that appropriate humidityformed by drying internal environment of the raising box with the sand and piling and burying facilitates pupating of the spodoptera frugiperda, pupae are convenient to intensively collect at the later stage, the group raising method is formed, and manual work is saved.

Description

technical field [0001] The invention belongs to the field of agricultural and forestry biotechnology, and relates to a method for artificially rearing Spodoptera frugiperda, in particular to a method for feeding Spodoptera frugiperda larvae with corn shoots for group feeding. Background technique [0002] Maize is a grass crop, an annual herb, is a food resource for human survival, and is also an important cereal crop in my country. Its total output ranks second only to rice. In recent years, corn has developed into an important food, feed and industrial raw material crop in China. The development scale of corn production has become an important factor that determines the situation of food supply and demand in my country and determines the development of animal husbandry and corn processing industry, and is an important part of national food security. Spodopterafrugiperda, commonly known as Fall armyworm (Fall armyworm), belongs to the genus Lepidoptera, Spodoptera, native ...

AI Technical Summary

Problems solved by technology

[0004] With the continuous deepening of scientific research on fall armyworm and the development of control technology, a large number of insect sources with uniform development and uniform physiology are needed, which are limited by seasons and the growth cycle of host plants, especially when the larvae of fall armyworm are at a higher density. , the larvae often kill each other, or the larvae bite the pupa, and the method of feeding a single larva is time-consuming and laborious, and also wastes the remaining food. Therefore, there is an urgent need for an optimized feeding method and process for group feeding of Spodoptera frugiperda Larvae provide a large number of physiologically uniform insect sources for future scientific research on the biology, ecology, and physiology of Spodoptera frugiperda and the expansion of natural enemy parasitoids