CN101317585A - Broad spectrum environment friendly pesticide and preparation thereof - Google Patents

Abstract

The invention relates to a pesticide, in particular to the wide-spectrum environmental-protection pesticide. According to the weight portions, the effective composition of the pesticide comprises the plant extracting articles as follows: 5-20 of gelsemium elegans, 5-30 of tripterygium wilfordii, 5-35 of dittany and 5-50 of hupeh euphorbia root. The pesticide of the invention has intense stomach poisoning on a plurality of pests in agricultural fruit trees such as cabbage caterpillar, diamondback moth, and the like; furthermore, the pesticide of the invention has good insecticidal effects on army worm, grasshopper, cricket, cabbage caterpillar and aphid, and the controlling effect is more than 85%; all compositions cooperates together, which have no toxicity and no harms on human body and beasts as well as friendly environment. Furthermore, the pesticide of the invention can be widely applied to controlling the pests of economic crops such as vegetables, water melons, maize, and the like, and the controlling effect is more than 90%.

Description

Broad spectrum environment friendly pesticide and method for making thereof

Technical field:

The present invention relates to agricultural chemicals, particularly broad spectrum pesticide.

Background technology:

In order to improve crop yield, quality, to obtain and produce good harvest, agricultural chemicals is absolutely necessary, but the use of agricultural chemicals also exists some substantial deficiencies, particularly at the farmland agricultural chemicals, mostly be chemical pesticide at present, the consumption poor effect of removing the evil less, the residual amount of consumption multiple medicines is big, and is bigger for health, ecotope, soil property, crops side effect.

Summary of the invention:

The objective of the invention is to overcome above-mentioned not enough problem, a kind of broad spectrum environment friendly pesticide is provided, drug effect is good, the killing rate height, and have no side effect environmental friendliness.Its method for making also is provided in addition, simple to operation.

The technical scheme that the present invention is adopted for achieving the above object is: broad spectrum environment friendly pesticide, its active ingredient are that the plant extracts of following weight parts ratio is made:

Gelsemium elegan 5-20; Thunder godvine 5-30; Dittany bark 5-35; Make 5-50 for nine Ns.

Described active ingredient is the following weight parts ratio: gelsemium elegan 10-20; Thunder godvine 10-20; Dittany bark 10-25; Make 10-30 for nine Ns.

Agricultural chemicals method for making of the present invention:

The first step: raw material is handled: the thunder godvine whole plant (leaf, stem and root etc.) of gathering is cut into fragment, dries, be crushed to 60 sieve meshes, water adopts the aseptic extraction of vapor tight tank, and constantly rotates vapor tight tank, after filtration, purify, concentrate triperygium wilfordii extractive; With the absolute ethyl alcohol of 10 times of amounts of a certain amount of gelsemium elegan dry powder adding, soak at room temperature 24 hours, 45 degree stirring in water bath 8 hours are filtered concentrating under reduced pressure, get the gelsemium elegan ethanol extract; Get dittany bark, nine Ns and make the water that adds three times of each material quantities respectively and decoct, filter then, it is standby that merging filtrate gets extract;

Second step: mix: by weight mixing, the packing that stirs gets final product with above-mentioned raw materials.

The present invention has outstanding feature compared with similar products: Thunder God Teng is the insecticidal materials of China's folk tradition, crushed material or extract have strong stomach toxicity to multiple agricultural fruit tree pest insects such as cabbage caterpillar, diamond-back moths, can cause food refusal or play anesthetic effect, the main component that wherein works is wilfordine and triptolide.Contain compounds such as Diterpenes, flavonoids, lignanoid, coumarin and other phenylpropyl alcohol elements in the gelsemium elegan.The ethanol extract of graceful jessamine herb has good insecticidal activity to cabbage caterpillar.To mythimna separata, grasshopper, cricket, cabbage caterpillar and aphid good disinsection effect, control efficiency can reach more than 85% in addition, and each component synergy is nontoxic, the people is held harmless, environmental friendliness.Can be widely used in economic crops insects such as control vegetables, watermelon, corn, integrated control effect can reach more than 90%.

Embodiment:

Embodiment 1

Prepare broad spectrum environment friendly pesticide by following weight and method,

The first step: raw material is handled: the thunder godvine whole plant (leaf, stem and root etc.) of gathering is cut into fragment, dries, be crushed to 60 sieve meshes, water adopts the aseptic extraction of vapor tight tank, and constantly rotates vapor tight tank, after filtration, purify, concentrate triperygium wilfordii extractive; With the absolute ethyl alcohol of 10 times of amounts of a certain amount of gelsemium elegan dry powder adding, soak at room temperature 24 hours, 45 degree stirring in water bath 8 hours are filtered concentrating under reduced pressure, get the gelsemium elegan ethanol extract; Get dittany bark, nine Ns and make the water that adds three times of each material quantities respectively and decoct, filter then, it is standby that merging filtrate gets extract;

Second step: mix: with raw material extract gelsemium elegan 20; Thunder godvine 20; Dittany bark 25; Make 20 for nine Ns and mix, the packing that stirs gets final product.

Embodiment 2

Prepare broad spectrum environment friendly pesticide according to embodiment 1 described method, wherein the weight of each raw material extract is as follows:

Gelsemium elegan 10; Thunder godvine 20; Dittany bark 10; Make 30 for nine Ns.

Embodiment 3

Prepare broad spectrum environment friendly pesticide according to embodiment 1 described method, wherein the weight of each raw material extract is as follows:

Gelsemium elegan 5; Thunder godvine 10; Dittany bark 25; Make 50 for nine Ns.

Embodiment 4

Prepare broad spectrum environment friendly pesticide according to embodiment 1 described method, wherein the weight of each raw material extract is as follows:

Gelsemium elegan 15; Thunder godvine 15; Dittany bark 15; Make 15 for nine Ns.

Claims (3)

1, broad spectrum environment friendly pesticide is characterized in that: its active ingredient is that the plant extracts of following weight parts ratio is made:

Gelsemium elegan 5-20; Thunder godvine 5-30; Dittany bark 5-35; Make 5-50 for nine Ns.

2, broad spectrum environment friendly pesticide according to claim 1 is characterized in that: active ingredient is the following weight parts ratio: gelsemium elegan 10-20; Thunder godvine 10-20; Dittany bark 10-25; Make 10-30 for nine Ns.

3, the method for making of broad spectrum environment friendly pesticide is characterized in that:

The first step: raw material is handled: the thunder godvine whole plant (leaf, stem and root etc.) of gathering is cut into fragment, dries, be crushed to 60 sieve meshes, water adopts the aseptic extraction of vapor tight tank, and constantly rotates vapor tight tank, after filtration, purify, concentrate triperygium wilfordii extractive; With the absolute ethyl alcohol of 10 times of amounts of a certain amount of gelsemium elegan dry powder adding, soak at room temperature 24 hours, 45 degree stirring in water bath 8 hours are filtered concentrating under reduced pressure, get the gelsemium elegan ethanol extract; Get dittany bark, nine Ns and make the water that adds three times of each material quantities respectively and decoct, filter then, it is standby that merging filtrate gets extract;

Second step: mix: by weight mixing, the packing that stirs gets final product with above-mentioned raw materials.