A kind of cutworm feed and raising method thereof

Abstract

The invention discloses an agrotis ypsilon feed. The agrotis ypsilon feed is specific in formula, and comprises larva feeds and imago culturing solutions, wherein the larva feeds are suitable for growth requirement of the agrotis ypsilon in a larva period; and the imago culturing solutions are suitable for growth requirement of the agrotis ypsilon in an imago period. The invention also discloses a breeding method of the agrotis ypsilon, which comprises the steps of spawning the agrotis ypsilon under an environment that the temperature is 25-27 DEG C and the humidity is 55-70 percent; incubating under a dark condition; putting agrotis ypsilon larva into an insect breeding plate containing the larva feeds to breed for 3-5 days; transferring to a flat-bottom test tube containing the larva feeds; breeding the agrotis ypsilon larva at the temperature of 28-39 DEG C and the humidity of 55-70 percent under the dark condition until the agrotis ypsilon larva is pupated; then breeding under the dark condition until a pupa turns into black; transferring into a culture container with a degreasing cotton and culturing until reaching an imago period; and finally, covering a layer of gauze on the top of an insect culturing cage to spawn at the temperature of 28-30 DEG C and the humidity of 55-70 percent under the dark condition. The breeding method is simple, sanitary and high in efficiency, and the obtained agrotis ypsilon is high in stability and consistency.

Description

technical field [0001] The invention belongs to the field of insect breeding, and relates to a small cutworm feed and a feeding method for the small cutworm. Background technique [0002] Small cutworm belongs to Lepidoptera Noctuidae, also known as soil silkworm, ground silkworm, black soil silkworm, black ground silkworm, ground shears, root cutting insects, etc. It is the most widely distributed and most harmful species of cutworms. , can eat cotton, melons, beans, cereals, hemp, sugar beet, tobacco and other crops. Cutworms mainly damage crop seedlings by cutting off young stems and feeding on inner leaves and young stems. They can also bite seed buds, harm fruit ears, and eat tubers, etc. Older larvae have a high rate of cutting seedlings and eat a lot of food. In recent years, the damage caused by cutworms has often caused crops to lack seedlings and break ridges, seriously affecting their yields. Therefore, it is particularly important to do a good job in the preve...

AI Technical Summary

Problems solved by technology

The feeding of cutworms is closely related to the formula and preparation of artificial feed, the feeding environment and the standardization of operations. Any problem in any link will lead to abnormal growth of cutworms: in the breeding process, green vegetable leaves are generally used for single feeding. It is necessary to wrap the petiole or the cutting edge of the leaf with moist absorbent cotton to ensure the freshness of the leaf, and after the cutworm is 3 years old, its food intake increases, and it is necessary to replace the leaves every day and clean up the feces. The workload is heavy. Use When green vegetable leaves are cultured for multiple generations, the small cutworms themselves will suffer from malnutrition and degeneration; in the breeding environment, the temperature and light of conventional insects are generally adopted (26±1°C, light / dark: 14h / 10h), The characteristics of the cutworm as a subterranean pest were not considered, and the existence of the light environment severely restricted the normal growth and development of the cutworm, and severe cases would cause its death

The above non-standard and unscientific factors all lead to a series of problems such as low larval survival rate, long larval duration, low pupation and eclosion rate, low adult egg production, and degeneration after subculture, which severely restrict The relevant scientific research progress of the small cutworm

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