Artificial feed for armyworm, preparation method thereof, and feeding method

Abstract

The invention relates to an artificial feed for armyworm, a preparation method thereof, and a feeding method, and belongs to the technical field of insect feeding. The artificial feed for the armyworm is mainly prepared from the following components: soybean meal, yeast powder, casein, dry corn leaf meal, cholesterol, sucrose, ascorbic acid, sorbic acid, agal-agal, hydroxybenzoate methyl paraben, vitamin solution and distilled water. The feed has strong adaptivity and is a favorite food for the armyworm, so the armyworm has normal growth and development and the nutrition requirement of the armyworm of the whole generation and the followed generation can be met. The feed and the feeding method are used for feeding the armyworm, the problem that the successive generation feeding of the armyworm throughout the year cannot be carried out caused by season change, particularly insufficient natural feed in winter and early spring seasons is solved, and the massive, annual and successive generation feeding of standard worm sources is realized.

Description

technical field [0001] The invention relates to insect feed and feeding technology, in particular to an artificial feed for armyworms, a preparation method thereof and a feeding method using the feed. Background technique [0002] Armyworm Mythimna separata (Walker) belongs to Lepidoptera of Lepidoptera and Noctuidae of Noctuidae. It is an agricultural pest with a very wide range of hosts. When its larvae migrate in groups and cause damage, crops can be greatly reduced, or even harvested. Northeast my country, Corn planting areas in North China are often harmed by armyworm. At present, the research hotspots of the comprehensive control measures of this pest mainly focus on the research and development of new biological pesticides and the safety evaluation of genetically modified organisms. In the practical application of agricultural production, armyworms are often used as parasitic natural enemies of important agricultural pests, such as parasitic wasps and parasitic flies. ...

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Problems solved by technology

[0003] Since the 1970s, research on artificial diets for armyworms has been carried out at home and abroad, and Sato, Shorey and Hale, Hirai, etc. have reported relevant research results (SatoY. The artificial diet for massing of the tobacco cutworm, Prodenia litura Fabr, and the common armyworm.Leucania separata Walker.J.Appl.Ent.Zool.1965.9:99~106;Shorey HH and Hale RL.Massing-Rearing of the larvae of nine Noctuid species on a simple artificial medium.J.Econ.Ent.1965.58 : 522~524), domestic research is more on Bishi feed (Bi Fuchun. 1981. A new artificial feed for armyworm. Acta Entomology. 24(4): 379-383), Hou Jiang Xingfu, Zhu Limei, Jiang Surong, etc. People (Jiang Xingfu, Luo Lizhi, Hu Yi. 1998. Effects of artificial diet on growth, reproduction and flight of armyworm. Prospects for Plant Protection in the 21st Century. 474-476; Zhu Limei, Ni Jueping, Huang Chunxia, ​​Cao Xiaoyu, Hou Huamin , Cui Qin. 2001. Preliminary study on semi-artificial diets for armyworms. Plant Protection. 27(6): 27-28; Jiang Surong, Fu Fengling. 2006. Effects of several semi-artificial diets on armyworms. Journal of Sichuan Agricultural University .24(2): 232-234.) developed several new artificial feeds one after another. The above work has indeed solved the difficult problem of the standard source of armyworm in the research work to a certain extent, but it still cannot realize the experimental results. Cultivation of large batches, annuals, and subcultures of insects

The main problems that exist are: (1) its raising method is comparatively complicated, the pupation rate is low (only about 30% when a large number of generations are raised), and the weight of pupae is light (only about 230mg when a large number of generations are raised), it is difficult to be used widely

(2) The cost is high, and some raw materials are difficult to obtain

(3) The anti-corrosion effect is poor, and the feed needs to be replaced many times, which is time-consuming and laborious

Compared with the natural host corn leaves, the feed formula has no significant difference in key biological indicators such as pupation rate, eclosion rate, etc., but the survival rate of larvae using this feed is still low. From the perspective of formula, The advantage of this feed is that the ingredients are complex and diverse, and the nutrition is comprehensive and rich; but its disadvantages are that the ingredients are too complicated, some raw materials are difficult to obtain, the process of collection and preparation is too cumbersome, and the cost of feed is too high, so it is not suitable for large-scale, Long-term, subculture

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