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Composition and feed for feeding coccinella septempunctata, and preparation method of composition

A technology of ladybird seven star and a composition, applied in the field of a composition for feeding ladybird seven star and the field of preparation thereof, can solve the problems of being difficult to maintain enough to control the harm of aphids, high economic cost, limited utilization mode, and the like

Pending Publication Date: 2021-09-10
INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Aphids are important pests on a variety of crops. Due to the wide variety of aphids, strong diffusion ability, short development period, and fast reproduction, they can be directly sucked and spread plant viruses, causing plant nutrition to deteriorate or even die, seriously affecting crops. yield and quality
[0003] The seven-spot ladybug is the dominant natural enemy insect that preys on aphids in the family Coleoptera. However, due to the influence of field climate conditions and agricultural operations, it is difficult to maintain a level sufficient to control the damage of aphids, and its utilization is limited.
Feeding methods using aphids require a large number of breeding aphids, which is costly and time consuming
When artificial feed is fed, it will have a certain impact on the weight, pupation rate, eclosion rate, etc. of seven-spot ladybug, especially the low fecundity has become a bottleneck restricting the development of seven-spot ladybug artificial feed

Method used

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  • Composition and feed for feeding coccinella septempunctata, and preparation method of composition
  • Composition and feed for feeding coccinella septempunctata, and preparation method of composition
  • Composition and feed for feeding coccinella septempunctata, and preparation method of composition

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Effect test

preparation example Construction

[0036] The preparation method of above-mentioned composition comprises the following steps:

[0037] (1) the aphid treatment is mixed with sucrose, potassium sorbate and purified water to obtain the first solution;

[0038] (2) β-carotene is mixed with purified water to obtain a second solution;

[0039] (3) Mix the first solution, the second solution and the juvenile hormone, add an appropriate amount of pure water to constant volume, and obtain the composition, (the juvenile hormone is a low-concentration and high-efficiency hormone substance, and is insoluble in water. Add after organic solvent (75% alcohol) is dissolved into the solution of higher concentration, because the overall content of juvenile hormone is extremely low, the solvent used can not affect the breeding of ladybug). The mixture is initially made into a paste, and the obtained mixture is filled into a semi-ellipsoid container with a diameter of 0.5-2.0 cm and a height of 0.2-0.5 cm, sealed with a parafilm...

Embodiment 1

[0043] In order to clarify the optimum concentration of β-carotene, the following experiments were designed:

[0044] Based on the basic formula (750g of aphid treatment + 150g of sucrose + 100ml of purified water + 2g of potassium sorbate) as the main body, a total of 5 treatment groups were designed: A, B, C, D and E, A was the basic formula plus 0.5g of β-carotene, B Add 1.0g of β-carotene to the basic formula, add 1.5g of β-carotene to the basic formula of C, add 2.0g of β-carotene to the basic formula of D, and add 2.5g of β-carotene to the basic formula of E. Control experiments of pure feed and pure aphid feeding were carried out at the same time. The test time was 30 days, and the feeding situation, egg laying and hatching situation of each group of ladybugs were observed, and the optimal concentration of β-carotene was screened out.

[0045]The indoor environment is set at a temperature of 25±1°C, a humidity of 75%, and a light of 16h / d. Use a petri dish as a breedi...

Embodiment 2

[0057] In order to clarify the optimum concentration of juvenile hormone, the following experiments were designed:

[0058] Existing studies have shown that: low-concentration juvenile hormone has the characteristics of promoting the development of insect ovaries, but high-concentration juvenile hormone can inhibit the normal growth and development of insects. It can improve the egg-laying efficiency of ladybugs.

[0059] The test took the basic formula (750g of aphid treatment + 150g of sucrose + 100ml of purified water + 2g of potassium sorbate) as the main body, and designed 5 treatment groups: A, B, C, D, E, A was the basic formula plus juvenile hormone 1μL, B Add 5 μL of juvenile hormone to the basic formula, 10 μL of juvenile hormone to the basic formula of C, 20 μL of juvenile hormone to the basic formula of D, and 50 μL of juvenile hormone to the basic formula of E. At the same time, the control experiment of pure feed and pure aphid feeding was carried out . The tes...

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Abstract

The invention provides a composition and feed for feeding coccinella septempunctata, and a preparation method of the composition. The composition comprises the following components in parts by weight: 500-1000 parts of aphid treatment substances, 1-4 parts of [beta] carotene, 0.000001-0.00001 part of juvenile hormone and the like. The feed composition provided by the invention comprises the aphid treatment substance, the juvenile hormone and the [beta] carotene, wherein the aphid treatment substance has relatively comprehensive basic nutrients, the juvenile hormone has the characteristic of promoting ovarian development of adults, and the [beta] carotene has the characteristics of improving the survival rate of insects and protecting follicles and uterine cells. The egg laying amount and the hatching rate of the coccinella septempunctata fed by the composition have no significant difference from the egg laying amount and the hatching rate of the coccinella septempunctata fed by conventional bean aphids, and the feed is favorable to be stored and is conveniently used. The whole demand quantity of aphids can be reduced by about 20%, the space is saved by 50% or above, and the labor demand is reduced by 30% or above.

Description

technical field [0001] The invention belongs to the technical field of feed, and in particular relates to a composition for feeding ladybugs, a preparation method thereof and feed. Background technique [0002] Aphids are important pests on a variety of crops. Due to the wide variety of aphids, strong diffusion ability, short development period, and fast reproduction, they can be directly sucked and spread plant viruses, causing plant nutrition to deteriorate or even die, seriously affecting crops. yield and quality [0003] Seven-spot ladybug is the dominant natural enemy insect that preys on aphids in the family Coleoptera. However, due to the influence of field climate conditions and agricultural operations, it is difficult to maintain a level sufficient to control the damage of aphids, and its utilization is limited. In recent years, greenhouse vegetables and protected horticultural crops have developed rapidly in my country. The closed environment and suitable temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/90A23K10/20A23K20/105A23K20/163A23K20/184A01K67/033
CPCA23K50/90A23K10/20A23K20/105A23K20/163A23K20/184A01K67/033
Inventor 蒲德强刘虹伶伍兴隆肖科军刘超
Owner INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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