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Application of magnolol and honokiol as insecticide synergist

A magnolol and insecticide technology, which is applied to the application field of magnolol and honokiol as insecticide synergists, and can solve the problem of affecting the metabolic balance of insects, the mechanism of insecticidal synergy is unclear, etc. question

Active Publication Date: 2021-09-07
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mechanism of the synergistic effect of the two compounds on insecticidal pests is not clear, it may function as a detoxification enzyme inhibitor, or affect the metabolic balance in insects

Method used

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  • Application of magnolol and honokiol as insecticide synergist
  • Application of magnolol and honokiol as insecticide synergist
  • Application of magnolol and honokiol as insecticide synergist

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The synergistic effect of magnolol and honokiol on dinotefuran, nitenpyram and trifluoropyrim

[0037] 1. Drugs to be tested:

[0038] 20% dinotefuran soluble granules (Japan Mitsui Chemicals ARGO Co., Ltd.), 30% nitenpyram water dispersible granules (Shaanxi Huarong Kaiwei Biological Co., Ltd.), 10% trifluoropyrim suspension concentrate (U.S. DuPont company), ≥98% magnolol and ≥98% honokiol (HPLC grade, Shanghai Aladdin Biochemical Technology Co., Ltd.).

[0039] 2. Insect sources for testing:

[0040] The field population NL-FY2020 of the tested brown planthopper was collected from a rice field in Fuyang District, Hangzhou City, Zhejiang Province in October 2020. The tested insects were reared on insect-free TN1 rice seedlings at the peak tillering stage, the temperature conditions were 27±1°C, the relative humidity was 75%±5%, and the photoperiod was 16L:8D.

[0041] 3. Determination method:

[0042] The method of determination of insecticide toxicity was carried...

Embodiment 2

[0057] Synergistic effect of magnolol and honokiol on chlorantraniliprole

[0058] 1. Drugs to be tested:

[0059] 200g / L Chlorantraniliprole Suspending Concentrate (FMC, USA); ≥98% magnolol and ≥98% honokiol (HPLC grade, Shanghai Aladdin Biochemical Technology Co., Ltd.).

[0060] 2. Insect sources for testing:

[0061] The field population CS-FY2020 of Chilo suppressalis tested was collected in April 2020 from the paddy field in Fuyang District, Hangzhou City, Zhejiang Province. The sensitive strain CS-SUS is an indoor population that has not been exposed to any chemical pesticides for more than ten years. The tested insects were all raised with artificial feed, the temperature conditions were 28±1°C, the relative humidity was 70-80%, and the photoperiod was 16L:8D.

[0062] 3. Determination method:

[0063] Insecticide toxicity determination method adopts rice stem dipping method to carry out: sow rice with seedling pots (diameter 10cm, height 8cm) in the greenhouse, 60 ...

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Abstract

The invention discloses application of magnolol and honokiol as a pesticide synergist, which belongs to the technical field of agricultural production. The molecular formula of magnolol and honokiol is C18H18O2, the molecular weight is 266.32, and when the magnolol and honokiol are mixed with the insecticide at the concentration of 100 mg / L or are subjected to pre-drip treatment at the concentration of 5 mug / head, the toxicity of the insecticide on pest drug-resistant population can be remarkably improved, the control effect of the insecticide is greatly improved, the use amount of the insecticide is reduced, and the magnolol and honokiol have important value in treatment of drug-resistant pests. Meanwhile, new application of the plant extracts magnolol and honokiol in the agricultural field is also created.

Description

technical field [0001] The invention relates to the technical field of agricultural production, in particular to the application of magnolol and honokiol as insecticide synergists. Background technique [0002] Chemical pesticides have always occupied a dominant position in pest control, but long-term high-dose and high-frequency use has led to a series of problems such as pest resistance, pesticide residues, and environmental pollution, which seriously threatens the safe production of agricultural products. [0003] In view of the increasingly serious problem of insecticide resistance, rotation, scientific mixing of chemical pesticides, and addition of synergists are usually adopted in production to prevent or delay the development of insecticide resistance. Among them, the use of synergists is the best way to reduce pesticides and increase efficiency the effective means. Insecticide synergists are mostly inhibitors of detoxifying enzymes in pests (such as multifunctional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N31/08A01N43/56A01N51/00A01N43/40A01N43/90A01P7/00A01P7/04
CPCA01N31/08A01N43/56A01N51/00A01N43/40A01N43/90
Inventor 魏琪傅强万品俊何佳春赖凤香王渭霞
Owner CHINA NAT RICE RES INST
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