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Suspending agent capable of preventing and controlling pine wood nematode disease

A technology of pine wood nematode disease and suspending agent, applied in the direction of nematicides, insecticides, chemicals for biological control, etc., to achieve the effects of not easy to produce resistance, easy to use, and good insecticidal activity

Pending Publication Date: 2022-03-01
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, most of the commonly used pesticides for the control of pine wood nematodes are only effective against one of pine wood nematode or monochamus alternatus, and it is rare to find agents that are effective against both pine wood nematode and monochamus alternatus

Method used

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  • Suspending agent capable of preventing and controlling pine wood nematode disease
  • Suspending agent capable of preventing and controlling pine wood nematode disease
  • Suspending agent capable of preventing and controlling pine wood nematode disease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: Field prevention of "fluopyr imidacloprid"

[0033] Formula: 10% fluopyram, 45% imidacloprid, 8% wetting and dispersing agent, 4% adhesive, 0.2% defoamer, 3% antifreeze, 1% ethylene glycol monoundecyl ether, 28.8% water .

[0034] Auxiliary: The wetting and dispersing agent is sodium lignosulfonate, which can increase the wettability of the active ingredients in the solvent and achieve a good initial dispersion effect; the adhesive is xanthan gum, which can prevent the suspension from delamination At the same time, the application in the forest has better adsorption effect, so that the drug effect has a higher persistence; the antifoaming agent is silicone oil, which reduces the large amount of foam produced by the suspension during preparation, transportation and dilution, which affects the use of the agent; antifreeze The agent is ethylene glycol, which lowers the freezing point of the suspending agent solvent, so that the agent can be used normally under ...

Embodiment 2

[0044] Example 2: Control of Monochamus alternatus in the forest

[0045] Formula: 10% fluopyram, 45% imidacloprid, 8% wetting and dispersing agent, 4% adhesive, 0.2% defoamer, 3% antifreeze, 1% ethylene glycol monoundecyl ether, 28.8% water .

[0046] Auxiliary agent is with embodiment 1.

[0047] Preparation:

[0048] (1) Coarsely mix 10% fluopyram, 45% imidacloprid, 8% wetting and dispersing agent, 0.2% defoamer and 20% water to form a coarse mixture;

[0049] (2) Superfinely grind the rough mixture to a particle size of 3 μm to form an effective liquid;

[0050] (3) 4% adhesive, 3% antifreeze, 1% ethylene glycol monoundecyl ether and 8.8% water are miscible to form a regulating fluid;

[0051] (4) Fully mix the effective liquid and the regulating liquid to form the finished compound suspending agent "fluopyr imidacloprid".

[0052] experimental method:

[0053] In the forest land of pine wood nematode epidemic area, choose 60 mu of sample plots, hang 3 traps, 3 repet...

Embodiment 3

[0058] Example 3: Forestry control of "flupyr imidacloprid" pine wood nematode disease

[0059] formula:

[0060] 10% fluopyram, 45% imidacloprid, 8% wetting and dispersing agent, 4% adhesive, 0.2% defoamer, 3% antifreeze, 1% ethylene glycol monoundecyl ether, 28.8% water.

[0061] Auxiliary agent is with embodiment 1.

[0062] Preparation:

[0063] (1) Coarsely mix 10% fluopyram, 45% imidacloprid, 8% wetting and dispersing agent, 0.2% defoamer and 20% water to form a coarse mixture;

[0064] (2) Superfinely grind the coarse mixture to a particle size of 1 μm to form an effective liquid;

[0065] (3) 4% adhesive, 3% antifreeze, 1% Monochamus alternatus attractant and the remaining water are miscible to form a regulating solution;

[0066] (4) Fully mix the effective liquid and the regulating liquid to form the finished compound suspending agent "fluopyr imidacloprid".

[0067] experimental method:

[0068] From May 30th to 31st, in the woodland of the pine wood nematode ...

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PUM

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Abstract

The invention discloses a suspending agent capable of preventing and controlling pine wood nematode disease. The suspending agent comprises the following components in percentage by mass: 5-10% of fluopyram, 35-55% of imidacloprid, 8-30% of an auxiliary agent, 0.1-1% of ethylene glycol monoundecyl ether and 5-52% of water. The two effective components of fluopyram and imidacloprid are subjected to coarse crushing, mixing and ultrafine grinding with a wetting dispersing aid and part of a solvent, and then are fully mixed with other components to prepare the fluopyram and imidacloprid suspending agent. The insect population density of woodland monochamus alternatus can be greatly reduced through contact killing of imidacloprid, and meanwhile fluopyram has systemic property and can be conducted in pine trees to kill pine wood nematodes invading pine tree bodies. In addition, due to the addition of the auxiliary agent, the active ingredients of the dosage form are uniformly dispersed, the precipitation is avoided, the anti-freezing and defoaming effects are achieved, the transportation is facilitated, and the availability of the dosage form under the low-temperature condition is ensured, so that the effect of effectively preventing and controlling the pine wood nematode disease in different periods is achieved.

Description

technical field [0001] The invention belongs to the field of chemical prevention and control of forestry diseases and insect pests, and in particular relates to a suspending agent capable of preventing and controlling pine wood nematode disease. Background technique [0002] Pine wood nematode is a disease caused by pine wood nematode ( Bursaphelenchus xylophilus ) caused by pine wilt disease, pine trees will die in a short time after being infected with pine wood nematode, and they are highly contagious. Sexual epidemic. The spread of pine wood nematode disease, in addition to man-made long-distance transport of infected trees, mainly relies on the forest activities of the intermediate host Monochamus alternata to spread between plants. In recent years, local forestry law enforcement departments have increasingly strict quarantine and control on cross-regional transportation of pine wood, making the control of Monochamus alternatus and pine wood nematode the main battlefi...

Claims

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Application Information

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IPC IPC(8): A01N25/04A01N43/40A01N51/00A01N31/02A01P5/00A01P7/04A01P19/00
CPCA01N25/04A01N43/40A01N51/00A01N31/02
Inventor 吴松青张飞萍吴杰钦
Owner FUJIAN AGRI & FORESTRY UNIV
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