CN101006793A

CN101006793A - A nuisance-free botanical insecticides preparation process

Info

Publication number: CN101006793A
Application number: CNA2007100100283A
Authority: CN
Inventors: 高洪日; 高洪生
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-11
Filing date: 2007-01-11
Publication date: 2007-08-01

Abstract

A method for manufacturing botanical insecticide relates to manufacturing method of biological pesticide. The method comprises the steps of: oven-drying or open-air-drying pine or camphortree leaves, pulverizing to 50mesh, taking pine or camphortree leaves powder 1 part, backstreaming with 90% alcohol 40 parts in water bath for 1.5h, filtrating, recovering alcohol, backstreaming the residue with 80% alcohol 13 parts for 10h, filtrating, recovering filtrate, standing at 4DEG C for 12, condensing, adding water at a ratio of 1:2, freeze-drying to obtain pine or camphortree leaves extract condensed powder, mixing the condensed powder 40wt.% with tomatine 20 wt.%, allethrin 15wt.%, glucosinolate 15wt.%, and cottonseed phenol 10wt.% to obtain the insecticide. Adding water 500-1000 times the weight of the insecticide into the insecticide can be used for curing plant diseases and insect pests such as aphis and bollworm.

Description

A kind of nuisance-free botanical insecticides preparation process

Technical field

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

Background technology

The defence that a lot of plants produce various repellences to insect in the Nature is evolved, as the nicotine of tobacco plant generation, the glucosinolate (being a kind of poisonous allyl isocyanate compound) that crucifer produces, can produce serious harm to insect tissue, most of insects are had bigger toxicity; Can produce the cyanogen glucosides and can make cyanogenic glycoside discharge the enzyme of cyanide in the leaf of bird foot shape trefoil, have very big toxicity; The weeding chrysanthemum ester that the weeding chrysanthemum produces is widely used as free of contamination agricultural fungicides, and these poisonous materials can produce direct lethal effect to getting the food insect.The tetracyclic triterpenoid that often contains a large amount of bitter tastes in the stem of cucurbitaceous plant, the leaf, i.e. cucurbitacin, most of insects can not be food with it all.In the plant of Solanaceae, contain dragon alkali in the last of the ten Heavenly stems, nicotine and atropina etc., to toxic effect of some insect and inhibition growth effect.The scientist in California, USA university Irving branch school has found to contain in the hairs of many desert plants the natural insecticide, allergy thing etc. of tool toxicity.Some plant can produce driveing property chemical substance as guayule, and leek also has very strong anthelmintic action.The thin firpene that monoterpenes is arranged in the leaf of pine tree, camphor tree can produce the poisonous anthelmintic substance of volatility.Many plant corpuss contain tannin, gossypol, and it can make protein nondigestible, causes the reduction of nutritive value.The higher plant that has can produce the compound that disturbs herbivore insect normal growth to grow.Produce juvabione or the like as the material that is similar to corpus allatum hormone that has that exists in fir, the Pseudotsuga plant.

Various Biocidal bactericidal agents are matched and made to people's specific aim for this reason, come at different insect pests and bacterial classification, its manufacture craft and expect that respectively the apolegamy scheme has nothing in common with each other, its cost and effect are also variant, and it is current very significant utilizing a large amount of cheap living resources to produce effective biopesticide.

Biopesticide has safely, has no side effect, advantage such as free from environmental pollution.Greatly develop biopesticide and become inevitable trend.Biopesticide is the important assurance of pollution-free food production.The development pollution-less agriculture, producing pollution-free food is one of national development target.Stipulate clearly that in China's pollution-free food production standard the pollution-free food production of AA level will be used biopesticide.Provinces and cities such as Beijing, Shanghai, Shandong, Guangzhou, Fujian have all formulated nuisanceless production regulations, and clearly the regulation vegetables ban use of highly toxic pesticide and part high-toxic pesticide in producing.At a few years from now on, the chemical pesticide that accounts for China's agricultural chemicals usage amount about 70% will be withdrawn from the market, and the substitute is biopesticide.

2005, the aggregate demand of Chinese all kinds of biopesticides reached 14.5 ten thousand tons, and the total sales volume volume is about 800,000,000～1,000,000,000 yuan.Chinese biological agricultural chemicals market demand is very big.Following biopesticide development potentiality is huge.

Summary of the invention

The object of the present invention is to provide a kind of nuisance-free botanical insecticides preparation process, this insecticide is that organic matter and some kinds of inorganic matters that pine tree or camphortree leaf extract are formed through mixed preparing, and this method is drawn materials easily, and is with low cost, exploitativeness is strong, the germicidal efficiency height.

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

A kind of nuisance-free botanical insecticides preparation process, at first produce pine tree or camphortree leaf and concentrate powder: earlier pine tree or camphortree leaf are crushed to 50 order fineness through drying or drying, get 1 part in its pine tree or camphortree leaf powder, in water-bath, refluxed 1.5 hours with 40 parts 90% industrial alcohol, reclaim filtrate alcohol after filtering, and residue refluxed 10 hours with 13 parts 80% industrial alcohol, reclaim filtrate more after filtering, under 4 ℃ condition, place and concentrated in 12 hours, take by weighing weight and add water in 1: 2 ratio, freezing under-30 ℃ of conditions, freeze-drying gets pine tree or camphortree leaf extracts concentrated powder; Take by weighing above-mentioned concentrated powder 40% then by weight percentage; Get tomatin 20%, get allethrin 15%, glucosinolate 15%, gossypol 10% is made insecticide.

Advantage of the present invention and effect are:

The present invention be by the organic matter that extracts in the leaf and some kinds of inorganic matters through the formulated novel pesticide of science, it is drawn materials easily, with low cost, exploitativeness is strong, the germicidal efficiency height.

2. the main component of medicament of the present invention comes from plant and inorganic compound, and is nonpoisonous and tasteless, has no side effect, and is easy to decompose.Under the condition in greenhouse, booth or land for growing field crops, directly be decomposed into simple materials such as carbon, hydrogen, oxygen, nitrogen and mineral salt, do not have any residual hazard, soil, water source and surrounding environment are not had any pollution, more to the person poultry harmless.

3. the product after the present invention decomposes can be plant and directly absorbs, and helps plant and fully carries out photosynthesis, promotes the growth of plant, increases output.

Embodiment

The present invention is described in detail for example below.

At first, produce pine tree or camphortree leaf powder, contain large quantity of moisture in pine tree or the camphortree leaf, the existence of moisture is disadvantageous to next step extraction work, must be earlier through drying or dry (bake out temperature is too high, in order to avoid adustion, causes the active ingredient destroyed).Pulverize with flour mill or stone mill then, smashing fineness can reach 50 sieve meshes and get final product.

Get 1 part in pine tree or camphortree leaf powder, in water-bath, refluxed 1.5 hours with 40 parts 90% industrial alcohol, reclaim filtrate alcohol after filtering, and residue refluxed 10 hours with 13 parts 80% industrial alcohol, reclaim filtrate more after filtering, placement concentrated in 12 hours under 4 ℃ condition, took by weighing weight and added water in 1: 2 ratio, freezing under-30 ℃ of conditions, freeze-drying gets pine tree or camphortree leaf extracts concentrated powder;

Get above-mentioned pine tree or camphortree leaf then and concentrate 40 kilograms in powder; Get 20 kilograms of tomatins, get 15 kilograms of allethrins, 15 kilograms of glucosinolates, gossypol is mixed and made into insecticide for 10 kilograms.

In above-mentioned the selecting materials, tomatin is the peculiar a kind of glycocide class vegetable alkaloid of plant of Solanaceae tomato, and the content of thick tomatin is about about 1% in the leaf.

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

Glucosinolate is a distinctive bioactive ingredients in the crucifer, is a kind of poisonous allyl isocyanate compound.

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

Above-mentioned selecting materials except that pine tree or the concentrated powder of camphortree leaf, all the other are selected materials and can buy in market.

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

Claims

1. nuisance-free botanical insecticides preparation process, it is characterized in that, at first produce pine tree or camphortree leaf and concentrate powder: earlier pine tree or camphortree leaf are crushed to 50 order fineness through drying or drying, get 1 part in its pine tree or camphortree leaf powder, in water-bath, refluxed 1.5 hours with 40 parts 90% industrial alcohol, reclaim filtrate alcohol after filtering, and residue refluxed 10 hours with 13 parts 80% industrial alcohol, reclaim filtrate more after filtering, under 4 ℃ condition, place and concentrated in 12 hours, take by weighing weight and add water in 1: 2 ratio, freezing under-30 ℃ of conditions, freeze-drying gets pine tree or camphortree leaf extracts concentrated powder; Take by weighing above-mentioned concentrated powder 40% then by weight percentage; Get tomatin 20%, get allethrin 15%, glucosinolate 15%, gossypol 10% is made insecticide.