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Pine needle extract preparation for controlling aphids

A pine needle extract and aphid technology, which is applied in the directions of insecticides, animal repellents, plant growth regulators, etc., can solve the problems of pine needle extract preparations or turpentine preparations without aphids, and achieves low production cost and high technology. simple effect

Inactive Publication Date: 2011-05-18
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is no pine needle extract preparation or rosin preparation specially used to control aphids

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A, get 1000g of pine needles washed and dried in the shade, crushed to 60 mesh, to get pine needles;

[0015] B. Get the pine needle powder of A, add acetone to immersion, let it stand for leaching for 3 hours, and filter through 100 mesh to obtain the filtrate;

[0016] C, get the filtrate distillation of B and reclaim acetone, get the paste pine needle extract;

[0017] D. Take the paste-like pine needle extract of C, add 0.1mol / L sodium hydroxide solution at a volume ratio of 1:2, and prepare a stock solution of pine needle extract preparation for preventing and controlling aphids.

[0018] An application method of a pine needle extract preparation for preventing and controlling aphids: take the stock solution of the above-mentioned pine needle extract preparation for preventing and controlling aphids, dilute it 500 times with water, and spray it on the surface of plants affected by aphids, and the 24-hour control effect is 85%.

Embodiment 2

[0020] A, get 1000g of washed fresh pine needles, chop and refine, wash the pulp with acetone and pass 60 meshes to get pine needle pulp;

[0021] B, get the pine needle pulp of A and let it stand, extract for 3 hours, and obtain the filtrate through 100 mesh filtration;

[0022] C, get the filtrate distillation of B and reclaim acetone, get the paste pine needle extract;

[0023] D. Take the paste-like pine needle extract of C, add 0.1mol / L sodium hydroxide solution at a volume ratio of 1:2, and prepare a stock solution of pine needle extract preparation for preventing and controlling aphids.

[0024] An application method of a pine needle extract preparation for preventing and controlling aphids: take the stock solution of the above-mentioned pine needle extract preparation for preventing and controlling aphids, dilute it 300 times with water, and spray it on the surface of plants affected by aphids, and the 24-hour control effect is 85%.

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PUM

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Abstract

The invention relates to a pine needle extract preparation for controlling aphids and an application method thereof. A preparation method of the pine needle extract preparation comprises the steps of: A, smashing pine needles dried in shadow and screening through a 60-mesh sieve, or grinding fresh pine needles into thick liquid and screening the thick liquid through a 60-mesh sieve; B, lixiviating the pine needle powder or pine needle thick liquid in the step A with acetone for 3 hours; C, filtering extractives obtained in the step B through a 100-mesh sieve to obtain filtrate, and distillingthe filtrate for recovering the acetone to obtain a cream pine needle extract; and D, adding the cream pine needle extract into a 0.1mol / L sodium hydroxide solution according to a volume ratio of 1:2to prepare a basic solution of the pine needle extract preparation for controlling the aphids; and when in use, diluting the basic solution with 300-500 times of water, and spraying the diluted solution to the surfaces of plants damaged by the aphids. The preparation method is simple and safe and has low production cost, and the pine needle extract preparation has a controlling effect of 85% and belongs to new-generation plant-sourced nuisanceless bio-pesticides.

Description

technical field [0001] The patent of the invention relates to a pine needle extract preparation for preventing and controlling aphids, which belongs to the field of botanical pesticide processing. Background technique [0002] Rosin mixture is a dark brown liquid made of rosin and caustic soda or soda ash. The main component is rosin soap, which has a strong contact effect on pests. Because of its strong adhesion and permeability, it can erode the body wall of pests; it has a strong corrosive effect on the wax paper layer of scale insects. It is used to control a variety of scale insects, whiteflies, spider mites, etc. Instructions. Spray evenly with 20-25 times liquid. The ratio of raw materials, rosin: caustic soda: water is 1: 0.6-0.8: 5-6. Add water to the pot, add alkali, heat to boil, and dissolve the alkali. Slowly and evenly sprinkle the rosin ground into fine powder, cook together, stir while cooking, and pay attention to supplement with hot water to maintain t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/06A01P7/04
Inventor 邹双全张绍升郑光耀蔡娜何晞
Owner FUJIAN AGRI & FORESTRY UNIV