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Method for group breeding of Frankliniella occidentalis and application thereof

A technology of western flower thrips and colony, which is applied to the field of breeding of western flower thrips pests, can solve the problems of great difference between western flower thrips and no reference significance of western flower thrips, and achieves reduction of manpower input and less labor demand. , cost saving effect

Inactive Publication Date: 2021-06-11
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these insects are very different taxonomically from Western flower thrips, and their research results have no direct reference to Western flower thrips

Method used

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  • Method for group breeding of Frankliniella occidentalis and application thereof
  • Method for group breeding of Frankliniella occidentalis and application thereof
  • Method for group breeding of Frankliniella occidentalis and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0068] Embodiment 1: single head or group rearing Thrips occidentalis

[0069] 1. Source of tested insects

[0070] Western flower thrips (Frankliniella occidentalis) was collected from a pepper (Capsicumannuum) field in Changping District, Beijing in 2018. The experimental population was established in the State Key Laboratory of Plant Diseases and Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences. The pepper plants were used as host plants and ovipositing substrates for continuous multi-generation breeding.

[0071] 2. Feeding method

[0072] The experiment was carried out in the glass greenhouse of the Institute of Plant Protection, Chinese Academy of Agricultural Sciences, with a temperature range of 22-24 °C and a humidity of 30-40%. Prepare about 100 pairs of thrips western flower adults and place them in a glass cylinder with a bottom diameter of 10 cm and a height of 30 cm, seal the upper and lower sides with 200 mesh gauze, put 2 pepper...

Embodiment 2

[0085] The influence of embodiment 2 different feeding methods on the growth and reproduction of Western flower thrips

[0086] Table 1 shows the average developmental duration of each instar, the average oviposition of a single female, the pre-oviposition period, the total pre-oviposition period, and the life span of male and female adults for single-head IR and group-feeding GR.

[0087]Among them, there were significant differences in female adult stage (P<0.05), and extremely significant differences in nymph stage, pupal stage, female pre-oviposition period, total pre-oviposition period, and female life span (P<0.001). Compared with GR, the nymph stage (5.57vs4.84) ​​of IR was 0.73d longer on average, the pupal stage (4.30vs2.78d) was 1.52d longer on average, and the female pre-oviposition period (0.95vs0.00d) was 0.95d longer on average. (14.91vs11.63d) was 2.28d on average, the female lifespan (34.17vs29.43d) was 4.74d on average, and the adult female (20.22vs17.80d) was...

Embodiment 3

[0092] The influence of embodiment 3 different feeding methods on the offspring population parameters of Thrips occidentalis

[0093] The intrinsic growth rate γ and the weekly growth rate λ of single-head feeding and group feeding were significantly different (P0 The values ​​were not significantly different (see Table 2). Intrinsic growth rate of IR (γ, 0.16±0.01vs0.18±0.005d -1 ), weekly growth rate (λ, 1.17±0.01vs1.20±0.01d -1 ), the total reproductive rate (GRR, 31.38±3.77vs42.46±1.94) was lower than that of GR, and the average generation time (T, 19.69±0.46vs17.93±0.21d) was higher than that of GR.

[0094] The above results indicated that the population of Thrips occidentalis raised in groups grew faster than that raised individually, and the average time required to complete one generation was shorter.

[0095] Table 2 The population parameters of single rearing and group rearing of Thrips occidentalis

[0096]

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Abstract

The invention provides a breeding method of frankliniella occidentalis pests, in particular to a method for group breeding frankliniella occidentalis and application thereof to research of frankliniella occidentalis life tables. According to the method, single-head breeding and group breeding of the frankliniella occidentalis are compared, the life tables are established according to the two feeding modes, data of the life tables are compared, population parameters of the group breeding and the single-head breeding are different, a population growth trend simulated according to the data of the life tables of the group breeding is closer to population growth and decline in a natural state, a more reliable method is provided for the research and exploration of the life tables of the frankliniella occidentalis, and a more detailed theoretical basis is provided for the prediction and forecast of frankliniella occidentalis population.

Description

technical field [0001] The invention belongs to a breeding method of western flower thrips pests, in particular to a method for raising western flower thrips groups and its application in studying the life table of western flower thrips. Background technique [0002] Western flower thrips Frankliniella occidentalis (Pergande) is an important pest that harms vegetables, flowers and commercial crops worldwide. It originated from the Rocky Mountains in the western United States. It was first discovered in Yunnan Province, China in 2000 and spread rapidly. It has caused huge economic losses. [0003] The insect life table is an important means to study the survival number, death number and death causes of insect populations at each developmental stage under certain ecological conditions. So far, studies on the life table of Thrips occidentalis have adopted single-head rearing, including host, temperature, insecticide or pathogen, reproductive mode, population, and the influence...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033
CPCA01K67/033
Inventor 王海鸿李欣华刘胜雷仲仁吴圣勇高玉林
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI