CN105284919A - Method for preparing insecticide with harlequin glorybower leaf and twig - Google Patents

Abstract

The invention provides a method for preparing an insecticide with harlequin glorybower leaf and twig. The method comprises the following steps: A: preparing a harlequin glorybower leaf and twig alcohol extract, firstly drying and grinding harlequin glorybower leaf and twig until the fineness is 50 meshes, taking 1 part of harlequin glorybower leaf and twig powder, carrying out reflux on the harlequin glorybower leaf and twig powder in a water bath for 1.5 hours by using 35 parts of 90% industrial alcohol, recycling the alcohol filtrate after filtration and carrying out reflux on the residues for 10 hours by using 15 parts of 80% industrial alcohol; B: then recycling the filtrate after filtration, placing the filtrate at 4 DEG C for 11 hours to be concentrated, adding water according to the weight ratio of 1 to 2, freezing at minus 30 DEG C and freeze-drying, thus obtaining harlequin glorybower leaf and twig extract concentrated powder; mixing the harlequin glorybower leaf and twig extract concentrated powder with modified starch and adding liquorice root powder, wherein the ratio of a Chinese azalea flower extracting solution to the modified starch to the liquorice root powder is 7 to 3 to 3; C: weighing 45% of concentrated powder according to weight percent; and taking 15% of tomatine, 10% of allethrin, 15% of clove oil and 15% of gossypol, thus preparing the insecticide. The method has the advantages and effects that the materials are easy to draw; and the product is nontoxic and odorless, does not have side effects, is easy to decompose, does not have any residual toxicity and does not pollute soil, water sources or surroundings.

Description

A kind of clerodendron trichotomum prepares insecticides preparation process

Technical field:

The present invention relates to a kind of making of biopesticide, particularly relate to a kind of nuisance-free clerodendron trichotomum insecticides preparation process.

Background technology:

In the Nature is evolved, a lot of plants against insects produces the defence of various repellence, as the nicotine of tobacco plant generation, the caryophyllus oil (being a kind of poisonous allyl isocyanate compound) of crucifer generation, can serious harm be produced to insect tissue, have larger toxicity to most insects; Cyanogen glucosides can be produced and cyanogenic glycoside can be made to discharge the enzyme of cyanide in the leaf of bird foot shape trefoil, there is very large toxicity; The weeding chrysanthemum ester that weeding chrysanthemum produces, be widely used as free of contamination agricultural fungicides, these poisonous materials can produce direct lethal effect to taking food insect.Tetracyclic triterpenoid often containing a large amount of bitter taste in the stem of cucurbitaceous plant, leaf, i.e. cucurbitacin, most insects all can not with it for food.In plant of Solanaceae, containing dragon alkali in the last of the ten Heavenly stems, nicotine and atropina etc., to the toxic effect of some insect and suppression growth effect.The scientist in California, USA university Irving branch school, has found natural insecticide, allergy thing etc. containing tool toxicity in the hair of many desert plants.Some plant, as guayule can produce driveing property chemical substance, leek also has very strong anthelmintic action.There is the thin firpene of monoterpenes in the leaf of pine tree, camphor tree, the anthelmintic substance that volatility is poisonous can be produced.Containing tannin, gossypol in many plant corpuss, it can make protein nondigestible, causes the reduction of nutritive value.Some higher plants can produce the compound that interference herbivory normal growth is grown.The material being similar to corpus allatum hormone that has as existed in fir, Pseudotsuga plant produces juvabione etc.

People's specific aim is matched and has been made various Biocidal bactericidal agent for this reason, come for different insect pests and bacterial classification, its manufacture craft and each material matingplan are had nothing in common with each other, its cost and effect are also variant, and it is significantly current for utilizing a large amount of cheap living resources to produce effective biopesticide.

Biopesticide has safely, have no side effect, the advantage such as free from environmental pollution.Greatly develop the trend that biopesticide has become inevitable.Biopesticide is the important guarantee of pollution-free food production.Development pollution-less agriculture, producing pollution-free food is one of national development target.Clear stipulaties in China's pollution-free food production standard, the pollution-free food production of AA level will use biopesticide.The provinces and cities such as Beijing, Shanghai, Shandong, Guangzhou, Fujian have formulated No-harmful apple orchard regulations all, prohibit the use highly toxic pesticide and part high-toxic pesticide in clear stipulaties Vegetable produce.At a few years from now on, the chemical pesticide accounting for China's Pesticide use amount about 70% will be withdrawn from the market, and the substitute is biopesticide.

2005, the aggregate demand of Chinese different kind organism agricultural chemicals reached 14.5 ten thousand tons, and total sales volume volume is about 800,000,000 ~ 1,000,000,000 yuan.Chinese biological pesticide market is in great demand.Following biopesticide development potentiality is huge.

Summary of the invention:

A kind of biological clerodendron trichotomum is the object of the present invention is to provide to prepare insecticides preparation process, this insecticide is the organic matter that extracted by clerodendron trichotomum and several inorganic matter through mixed preparing, and the method is drawn materials easily, with low cost, exploitativeness is strong, and germicidal efficiency is high.

The object of the invention is to be achieved through the following technical solutions:

A kind of biological clerodendron trichotomum prepares insecticides preparation process, comprise steps A: produce and take out Chinese parasol tree alcoholic extract, first clerodendron trichotomum drying is crushed to 50 order fineness, get 1 part, its clerodendron trichotomum powder, reflux in water-bath 1.5 hours with 90% industrial alcohol of 35 parts, reclaim filtrate alcohol after filtering, and 80% industrial alcohol of residue with 15 parts is refluxed 10 hours;

Step B: reclaim filtrate after filtering again, places and concentrates for 11 hours, take weight and add water in 1: 2 ratio under the condition of 4 DEG C, freezing under-30 DEG C of conditions, and freeze-drying obtains clerodendron trichotomum and extracts concentrated powder; Clerodendron trichotomum is extracted the concentrated incorporating modified starch of powder and adds licorice powder, and the ratio of Rhodojaponin extract, modified starch and licorice powder is 7:3:3;

Step C: take above-mentioned concentrated powder 45% by weight percentage; Get tomatin 15%, get allethrin 10%, caryophyllus oil 15%, gossypol 15% makes insecticide.

Advantage of the present invention and effect are:

1. the present invention is that it draws materials easily, with low cost, and exploitativeness is strong, and germicidal efficiency is high by the organic matter extracted in leaf and several inorganic matter through the formulated novel pesticide of science.

2. the main component of medicament of the present invention comes from clerodendron trichotomum and inorganic compound, nonpoisonous and tasteless, has no side effect, and is easy to decompose.Under the condition in greenhouse, booth or land for growing field crops, Direct Resolution is the simple materials such as carbon, hydrogen, oxygen, nitrogen and mineral salt, without any residual hazard, to soil, water source and surrounding environment without any pollution, more to person poultry harmless.

3. the product after the present invention's decomposition can be plant and directly absorbs, and is conducive to plant and fully carries out photosynthesis, promote the growth of plant, increase yield.

Embodiment:

The present invention is described in detail in citing below.

First, produce clerodendron trichotomum powder, containing large quantity of moisture in clerodendron trichotomum, the extraction work of existence to next step of moisture is disadvantageous, must first drying (bake out temperature is too not high, in order to avoid adustion, causes active ingredient to be destroyed).Then pulverize with flour mill or stone mill, smashing fineness can reach 50 sieve meshes.

Get 1 part, clerodendron trichotomum powder, reflux in water-bath 1.5 hours with 90% industrial alcohol of 35 parts, reclaim filtrate alcohol after filtering, and 80% industrial alcohol of residue with 15 parts is refluxed 10 hours, reclaim filtrate after filtering again, place under the condition of 4 DEG C and concentrate for 13 hours, take weight and add water in 1: 2 ratio, freezing under-30 DEG C of conditions, freeze-drying obtains pine tree or camphortree leaf extracts concentrated powder; Clerodendron trichotomum is extracted the concentrated incorporating modified starch of powder and adds licorice powder, and the ratio of Rhodojaponin extract, modified starch and licorice powder is 7:3:3;

Then get above-mentioned being mixed with and take out Chinese parasol tree alcoholic extract 45 kilograms; Get tomatin 15 kilograms, get allethrin 10 kilograms, caryophyllus oil 15 kilograms, gossypol 15 kilograms is mixed and made into insecticide.

Above-mentionedly select materials, tomatin is a kind of glycocide class vegetable alkaloid specific to plant of Solanaceae tomato, in leaf, the content of thick tomatin is about about 1%.

Allethrin has another name called allethrin, and pale yellow oily liquid body, is insoluble in water, is dissolved in ethanol, benzinum, kerosene, carbon tetrachloride etc.Stablizing alkali, is non-optical active matter.

Caryophyllus oil is distinctive bioactive ingredients in crucifer, is a kind of poisonous allyl isocyanate compound.

Gossypol is a kind of poisonous chemical substance that can extract from cottonseed.

Above-mentionedly select materials except taking out Chinese parasol tree alcoholic extract, all the other are selected materials and can buy in market.

Above-mentioned insecticide and 500 ~ 1000 times, water are blent by the state depending on insect pest, can be used for the damage by disease and insect such as treatment aphid, cotton bollworm, cabbage caterpillar, imported cabbageworm, pine caterpillars, fall webworm, mythimna separata, leaf roller, codling moth.

Claims (1)

1. clerodendron trichotomum prepares an insecticides preparation process, it is characterized in that, the method comprises:

Steps A: produce and take out Chinese parasol tree alcoholic extract, first clerodendron trichotomum drying is crushed to 50 order fineness, gets 1 part, its clerodendron trichotomum powder, reflux in water-bath 1.5 hours with 90% industrial alcohol of 35 parts, reclaim filtrate alcohol after filtering, and 80% industrial alcohol of residue with 15 parts is refluxed 10 hours;

Step B: reclaim filtrate after filtering again, places and concentrates for 11 hours, take weight and add water in 1: 2 ratio under the condition of 4 DEG C, freezing under-30 DEG C of conditions, and freeze-drying obtains clerodendron trichotomum and extracts concentrated powder;

Clerodendron trichotomum is extracted the concentrated incorporating modified starch of powder and adds licorice powder, and the ratio of Rhodojaponin extract, modified starch and licorice powder is 7:3:3;

Step C: take above-mentioned concentrated powder 45% by weight percentage; Get tomatin 15%, get allethrin 10%, caryophyllus oil 15%, gossypol 15% makes insecticide.