CN-118805749-B - Indoor breeding method of ladybug

Abstract

The invention discloses an indoor breeding method of ladybug, belonging to the field of biological control. The invention adopts beet armyworm to partially replace the bemisia tabaci fed by the ladybug in different insect states so as to reduce the consumption of the fed bemisia tabaci. Because the asparagus caterpillar is very mature at present by adopting an artificial feed feeding technology, the asparagus caterpillar eggs can be stably and efficiently obtained. Therefore, the invention adopts beet armyworm ovum to replace the natural bait Bemisia tabaci of the Lawsonia tabaci in the indoor propagation process of the Lawsonia tabaci, can simplify the indoor propagation process of the Lawsonia tabaci, reduces propagation cost, and has better application prospect.

Inventors

• ZHANG TIANSHU
• YUAN YONGDA
• GU HAOTIAN
• TENG HAIYUAN
• CHANG XIAOLI
• WANG DONGSHENG

Assignees

• 上海市农业科学院
• 上海科立特农科（集团）有限公司

Dates

Publication Date

20260505

Application Date

20240904

Claims (5)

1. 1. An indoor breeding method of a ladybug with a sword angle is characterized in that beet armyworms are adopted to partially replace bemisia tabaci fed by the ladybug with different insect states, so that the consumption of the fed bemisia tabaci is reduced; The alternative method is that the larva stage of the ladybug is fed with the asparagus caterpillar eggs until pupation, the adult eclosion is fed with the bemisia tabaci eggs and nymphs on days 1-14, and then the asparagus caterpillar eggs are fed from day 15.
2. 2. Indoor breeding method for ladybug with knife angle according to claim 1, wherein the different insect states correspond to feeding spodoptera exigua or bemisia tabaci once a day.
3. 3. The method for indoor reproduction of ladybug, according to claim 1, wherein the different insect states correspond to feeding spodoptera exigua or bemisia tabaci once a day in an amount of 40-50 spodoptera exigua egg masses or host leaves with 1800-2000 nymphs and eggs of bemisia tabaci.
4. 4. Indoor breeding method for ladybug, according to claim 1, characterized in that the ladybug is raised in insect-raising cages, in each of which 40-50 of the ladybug is placed.
5. 5. The indoor breeding method of ladybug according to claim 1, wherein the conditions for breeding the ladybug are 26±1 ℃ temperature, 14h light/10 h darkness photoperiod and 70±5% humidity.

Description

Indoor breeding method of ladybug Technical Field The invention relates to the field of biological control, in particular to an indoor breeding method of ladybug. Background The ladybug (Serangiumjaponicum Chapin) belongs to coleoptera and ladybug, is a common natural enemy insect in agriculture. The ladybug has the characteristics of large food catching capacity, short generation period, long adult life, high fertility and the like, and becomes one of the dominant natural enemies of the agricultural important pests such as Bemisia tabaci (Gennnadius) and the like. At present, indoor breeding of the ladybug is mainly carried out by breeding natural baits of the ladybug, such as bemisia tabaci and the like. As the propagation of the bemisia tabaci does not realize artificial feed cultivation yet, the host plants need to be planted for propagation, and the propagation process of the ladybug with the horned beetles is complicated and the artificial propagation cost is high. Therefore, the indoor breeding efficiency of the ladybug is not high, and the large-scale breeding of the ladybug and the popularization and application of the ladybug are further affected. Disclosure of Invention The invention aims to provide an indoor breeding method for ladybug, which solves the problems in the prior art, and by adopting asparagus caterpillar to replace natural bait fed in different insect states, namely bemisia tabaci, the using amount of the natural bait bemisia tabaci in the breeding process of the ladybug is reduced, the indoor breeding process of the ladybug is shortened, and the breeding cost of the ladybug is reduced. In order to achieve the above object, the present invention provides the following solutions: The invention provides an indoor breeding method of a ladybug, which adopts beet armyworms to partially replace the bemisia tabaci fed by different insect states of the ladybug, so as to reduce the consumption of the fed bemisia tabaci. Preferably, the alternative method is feeding asparagus caterpillar eggs in the larval stage of the ladybug until pupation, feeding bemisia tabaci eggs and nymphs on days 1-14 after emergence of the adults, and then starting feeding asparagus caterpillar eggs on day 15. Preferably, the different insect states correspond to feeding asparagus caterpillar or bemisia tabaci once a day. Preferably, the different insect states correspond to feeding the asparagus caterpillar or the bemisia tabaci once a day by 40-50 asparagus caterpillar egg masses or host leaves with 1800-2000 head bemisia tabaci nymphs and eggs. Preferably, the ladybug is bred in insect breeding cages, and 40-50 ladybug heads are placed in each insect breeding cage. Preferably, the temperature of the ladybug raising is 26+/-1 ℃, the photoperiod is 14h light/10 h darkness, and the humidity is 70+/-5%. The invention discloses the following technical effects: compared with the existing breeding technology of the ladybug, the indoor breeding method of the ladybug with the horned beetles has the advantages that the beet noctuid eggs fed by artificial feed are adopted and are used as the replacement baits for partially replacing the white flies, the application of the white flies in indoor breeding of the ladybug with the horned beetles can be greatly reduced, the breeding process of the ladybug with the horned beetles is simplified, the breeding cost is saved, in addition, experiments show that the white flies are replaced by different insect parts, the larva calendar period and the pupa period are not obviously changed compared with the traditional whole-course feeding white flies, and the method is favorable for realizing the purpose of large-scale and low-cost indoor breeding of the ladybug with the horned beetles, and has good application prospect. Detailed Description Various exemplary embodiments of the invention will now be described in detail, which should not be considered as limiting the invention, but rather as more detailed descriptions of certain aspects, features and embodiments of the invention. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In addition, for numerical ranges in this disclosure, it is understood that each intermediate value between the upper and lower limits of the ranges is also specifically disclosed. Every smaller range between any stated value or stated range, and any other stated value or intermediate value within the stated range, is also encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included or excluded in the range. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although only preferred methods and materials are described herein, any methods and materials similar o