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Prodenia litura fabricius larva group breeding method

A technology for Spodoptera litura and larvae is applied in the field of group feeding of Spodoptera litura, which can solve the problems of cannibalism, low efficiency of insect raising, complicated technology, etc., so as to avoid premature decline of insects, avoid weak vitality and low feeding cost. Effect

Inactive Publication Date: 2018-05-29
INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the damage of Spodoptera litura to crops, it is necessary to carry out detailed research on its biological characteristics, ecology and drug resistance. In order to carry out the above research, it is necessary to carry out long-term annual artificial breeding of Spodoptera litura indoors , in order to obtain consistent standardization of insect age, high-quality experimental insects, and also the needs of the industrial production of virus biopesticides based on large-scale insect breeding, but the older larvae of Spodoptera litura have the habit of cannibalism, The traditional breeding method is to raise single head when the third instar larvae are raised. The artificial feeding technology is complicated, the cost is high and the output is low. It is necessary to change the feed and the breeding equipment every day, which greatly increases the workload and the number of breeding equipment and breeding sites. The efficiency of worms is low, and it is difficult to meet the requirements of feeding industrialization

Method used

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  • Prodenia litura fabricius larva group breeding method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Formulated feed

[0020] The feed formula is: 82.18% of water, 8.5% of soybean powder, 3.5% of yeast powder, 5.0% of wheat flour, 0.20% of sorbic acid, 0.35% of vitamin C, 0.20% of ethylparaben, and 0.070% of cholesterol.

[0021] (2) Feeding method:

[0022] With a diameter of 9.8cm, a sterilized plastic box with a height of 4.1cm, after Spodoptera litura was raised to the third instar, the larvae that were too small were picked out, and the larvae that grew evenly were kept, and 25 larvae were raised in every box. Put 6 small holes in the plastic box with thin iron nails, first cover it with roll paper, then cover the plastic box cover, put it in 30°C, 70-80 relative humidity and light time L:D=16:8 hours for feeding Raise under condition, treat that the larva is transferred to the rearing box that the sandy loam soil of 12% soil water content is housed when the larva is close to pupation. Management of pupae: Put the mature larvae into a rectangular plastic box...

Embodiment 2

[0024] (1) Preparation of artificial feed

[0025] The formula of the artificial feed is: 83.835% of water, 8.0% of soybean powder, 3.0% of yeast powder, 4.5% of wheat flour, 0.15% of sorbic acid, 0.30% of vitamin C, 0.15% of ethylparaben, and 0.065% of cholesterol.

[0026] (2) Feeding method:

[0027] With a diameter of 9.8 cm and a height of 4.1 cm in a sterilized plastic box, Spodoptera litura was raised to the third instar, and the larvae that were too small were picked out, and the larvae that grew evenly were kept, and 20 larvae were raised in each box. Put 6 small holes in the plastic box with thin iron nails, first cover it with roll paper, then cover the plastic box cover, put it in 30°C, 70-80 relative humidity and light time L:D=16:8 hours for feeding Raise under condition, treat that the larva is transferred to the rearing box that the sandy loam soil of 12% soil water content is housed when the larva is close to pupation. Management of pupae: Put the mature lar...

Embodiment 3

[0029] (1) Preparation of artificial feed

[0030] The formula of artificial feed is: water 82.951%, soybean powder 8.2%, yeast powder 3.3%, wheat flour 4.8%, sorbic acid 0.17%, vitamin C 0.33%, ethylparaben 0.18%, cholesterol 0.069%.

[0031] (2) Feeding method:

[0032]With a diameter of 9.8 cm and a height of 4.1 cm in a sterilized plastic box, the Spodoptera litura was raised to the third instar, and the larvae that were too small were picked out, and the larvae that grew evenly were kept, and 15 larvae were raised in each box. Put 6 small holes in the plastic box with thin iron nails, first cover it with roll paper, then cover the plastic box cover, put it in 30°C, 70-80 relative humidity and light time L:D=16:8 hours for feeding Raise under condition, treat that the larva is transferred to the rearing box that the sandy loam soil of 12% soil water content is housed when the larva is close to pupation. Management of pupae: Put the mature larvae into a rectangular plasti...

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Abstract

The invention discloses a prodenia litura fabricius larva group breeding method, and provides an artificial breeding method according to the problems in current artificial breeding process of prodenialitura fabricius larva. The method is suitable for growth and development of the prodenia litura fabricius larva and solves the problems of easily declination of insects, weak vigor and breeding of dog-eat-dog lepidoptera insects such as prodenia litura fabricius and the like. The method includes the steps: (1) larva breeding; (2) pupa management; (3) adults to eggs; (4) egg management. The method is simple and convenient to operate, low in breeding cost, good in breeding effect and suitable for large-scale breeding, and the prodenia litura fabricius is bred in a group manner at a larval stage.

Description

technical field [0001] The invention belongs to the technical field of insect feeding, and relates to a group feeding method of Spodoptera litura. Background technique [0002] Spodoptera litura belongs to Lepidoptera Noctuidae and is a kind of omnivorous and gluttonous leaf-eating pest. It often breaks out intermittently. It can eat more than 290 kinds of plants in 99 families, such as vegetables and tobacco. It is a worldwide pest and occurs all over the country. Among the crops cultivated in the field, it mainly damages cotton, corn, tobacco, sweet potatoes, peanuts and other crops. . One larva feeds on leaves, and also damages flowers, trees and twigs. The older larvae eat a lot, and when the population density is high, they can eat up all the leaves in the field, causing devastating damage and loss of harvest. In order to reduce the damage of Spodoptera litura to crops, it is necessary to carry out detailed research on its biological characteristics, ecology and drug ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033A23K50/90A23K10/30A23K10/18A23K20/105A23K20/174A23K20/111A23K20/168
CPCA01K67/033A23K10/18A23K10/30A23K20/105A23K20/111A23K20/168A23K20/174A23K50/90
Inventor 刘旭刘昌华陈庆东陈松刘虹玲李超刘月悦汪馨怡雷应华向娟罗翔陈倩颖
Owner INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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