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A reagent for attracting flower thrips

A technology of flower thrips and reagents, applied in the field of plant protection, can solve the problems of no biological activity, no synergistic effect, and unknown effect of lavender acetate, and achieve the effect of high sensitivity and excellent attracting effect

Active Publication Date: 2018-04-27
浙江绿神天敌生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Hamilton et al. believe that the component (R)-lavandulyl acetate (R)-lavandulyl acetate) found in Western flower thrips has no biological activity and cannot have a separate attractant effect on Western flower thrips
[0005] In addition, the above-mentioned British experts believed in their paper that (R)-lavandulyl acetate ((R)-lavandulyl acetate) and marmoset (S)-2-methylbutanoate (neryl(S)-2-methylbutanoate) No synergistic effects were shown in field trials provided by: (1) (R)-lavandulyl acetate ((R)-lavandulyl acetate) with marmosetyl (S)-2-methylbutyrate The ester (neryl(S)-2-methylbutanoate) was used in a 1:1 ratio using the number of captured western flower thrips and marmoset meat base (S)-2-methylbutanoate (neryl(S)-2-methylbutanoate) alone The captured quantity is basically the same, there is no difference; (2) He determined (R)-lavandulyl acetate ((R)-lavandulyl acetate) and marmosetyl (S)-2-methylbutyrate (neryl (S)-2-methylbutanoate) The ratio range of the two is 1:0.8-1:5. He believes that there is a range of the ratio of the two in nature, and there is no such situation that a specific ratio is the best; (3) he The role of (R)-lavandulyl acetate is believed to be unknown
[0006] In conclusion, the available technology shows that (R)-lavandulyl acetate does not increase the concentration of marmoset (S)-2-methylbutanoate. Effective, no need to mix

Method used

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  • A reagent for attracting flower thrips
  • A reagent for attracting flower thrips
  • A reagent for attracting flower thrips

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: The selection and optimum ratio of two compounds by Physophthora taiwanensis.

[0050] On the basis of a series of indoor thrips component analysis, behavior observation, bioassay and artificial synthesis of related components, the team of the present invention has clarified the main components, proportions and contents of the aggregation pheromone of domestic thrips populations, which has the ability to attract The concentration range and ratio range of the activity, as well as the quality analysis of the artificially synthesized aggregated pheromone, were verified by field experiments on this basis.

[0051] 1. Materials and methods

[0052] 1.1 Experimental thrips rearing

[0053] Thrips taiwanensis was collected from eggplant fields in a greenhouse on the outskirts of Hangzhou, and raised in an artificial climate box (temperature 23±1°C, relative humidity 75%±5%, photoperiod 14L:10D) using green beans Phaseolus vulgaris L. In order to prevent the degene...

Embodiment 2

[0083] Example 2: Optimal ratio of Thrips occidentalis to two compounds.

[0084] Referring to the method of Example 1, except that the experimental object is Thrips occidentalis and different concentration ratios, other methods and materials are the same. According to the method of implementing Example 1, we based on the ratio range (1:3.50-1:11.95) of (R)-lavandulysacetate and neryl(S)-2-methylbutanoate in the domestic western flower thrips population, as well as referring to foreign literature two The ratio of the tester, set the test ratio of 1:0.5, 1:1, 1:2, 1:4, 1:8, 1:10 and 1:12. The research results show that (R)-lavandulys acetate also has a very significant synergistic effect on neryl(S)-2-methylbutanoate, which can significantly improve the attracting activity to male and female adults of Thrips taiwanensis. (R)-lavandulys acetate and neryl(S)-2-methylbutanoate at ratios of 1:0.5, 1:1, 1:2, 1:4, 1:8, 1:10, 1:12 compared with control , the total amount of attracti...

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Abstract

The present invention provides a reagent for attracting flower thrips, wherein the reagent comprises: (R)-lavender acetate, and marmosetyl (S)-2-methylbutyrate or marmosetyl (S) The analogue of ‑2‑methylbutyrate; wherein, the mass ratio between the (R)‑lavender acetate and marmoset base (S)‑2‑methylbutyrate is the same as that of the corresponding natural population The proportions of (R)‑lavender acetate and marmosetyl (S)‑2‑methylbutyrate in Phytophthora genus are the same or similar; in this way, the best attracting effect can be obtained.

Description

technical field [0001] The invention belongs to the field of plant protection, and in particular relates to an attractant formula containing an aggregation pheromone component of Taiwan flower thrips and its combined field application technology with a color plate. Background technique [0002] Thrips belong to Thysanoptera: Thripidae, and are a worldwide distribution of polyphagous agricultural pests. There are currently about 6,000 species of thrips known in the world (Ananthakrishnan, 1979; Mound, 1983). There are 124 genera and 336 species of thrips recorded in my country (Zhang Weiqiu and Tong Xiaoli, 1993). Thrips use file-sucking mouthparts to pierce and suck the stems, leaves, flowers, fruits and other organs of the host plant, which can easily cause the leaves to become smaller, shrink, or even yellow and dry, which directly leads to serious serious problems such as reduced production of agricultural products and reduced commodity value. Economic losses. According...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N37/02A01P19/00
Inventor 吕要斌章金明郦卫弟张蓬军张治军林文彩黄芳贝亚维
Owner 浙江绿神天敌生物技术有限公司
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