An indoor artificial breeding method of chilo suppressalis

By setting environmental parameters and differentiating feed in an artificial climate chamber, combined with a heterogeneous three-dimensional breeding device, the contradiction between feed moisture content and larval survival rate in indoor breeding of rice stem borers was resolved, achieving efficient indoor artificial breeding management of rice stem borers and improving survival rate and propagation efficiency.

CN122123348BActive Publication Date: 2026-07-03SANYA NATIONAL INSTITUTE OF SOUTHERN BREEDING CHINESE ACADEMY OF AGRICULTURAL SCIENCES +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SANYA NATIONAL INSTITUTE OF SOUTHERN BREEDING CHINESE ACADEMY OF AGRICULTURAL SCIENCES
Filing Date
2026-04-29
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing indoor artificial breeding of rice stem borers, the contradiction between feed moisture content and the survival rate of young larvae is difficult to reconcile, leading to suffocation or starvation of newly hatched larvae, resulting in a high mortality rate and making it difficult to establish a healthy population.

Method used

By setting constant temperature, humidity, and photocycle in an artificial climate chamber, constructing a vertical humidity gradient using a heterogeneous three-dimensional breeding device, and treating feed differently, the system combines hatching and colonization, management of young larvae, management of older larvae, management of pupation, and management of adults to ensure consistent development and health.

Benefits of technology

It significantly improved the survival rate and propagation efficiency of rice stem borer larvae, reduced the risk of disease, and achieved efficient indoor artificial breeding management.

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Abstract

This application discloses an indoor artificial rearing method for the rice stem borer, belonging to the field of insect rearing technology. This method addresses the problems of drowning in young larvae and frequent disease outbreaks in older larvae caused by homogeneous rearing across all generations. It constructs a constant-temperature environment and prepares granular dry feed for young larvae and slightly dehydrated flake feed for older larvae based on differences in larval mouthparts. A heterogeneous three-dimensional rearing device is used. In the young larvae stage, a slow-release substrate at the bottom maintains a vertical humidity gradient, and layered feeding prevents mechanical damage to the larvae. In the older larvae stage, substrate-free bare-bottom rearing and full-volume replacement feeding are employed. Timely removal of filamentous netting blocks the breeding environment for soft rot. Furthermore, the method combines pupation induction with corrugated paper induction and non-contact moisturizing, humidification during the adult dark period to delay gelatinous hardening, and overall substrate replacement during the light period to achieve damage-free egg mass harvesting. This application, through precise age-based management, significantly improves the survival rate and population propagation efficiency of the rice stem borer across all generations.
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