CN1107654A

CN1107654A - Preparation of margosine as plant insecticide and its using method

Info

Publication number: CN1107654A
Application number: CN 94119397
Authority: CN
Inventors: 彭君
Original assignee: Individual
Current assignee: Wang Shouzhong
Priority date: 1994-12-19
Filing date: 1994-12-19
Publication date: 1995-09-06
Anticipated expiration: 2014-12-19
Also published as: CN1079009C

Abstract

The natural plant insecticide is made of chinaberry, flavescent sophora, tobacco leaf, moxa leaf and honeylocust and features high effect to prevent and eliminate pests and diseases, no poison, broad spectrum, durability and less resistance of pests.

Description

Preparation of margosine as plant insecticide and its using method

The invention belongs to the preparation and the using method of insecticide.Relating to a kind of is that raw material mixes the preparation of make efficient, nontoxic, broad-spectrum plant insecticide and makes usage with the plant after extracting.

Various countries use the chemical pesticide control insect pest merely in the world now, have brought the serious effect of paying, i.e. environmental pollution has destroyed the ecological balance.People and animals' pesticide poisoning, death happens occasionally, and the pesticide resistance of its remaining toxicity and insect is all day by day serious.At present,, cost an arm and a leg, and the long-range harm of residual hazard also is very serious though low-toxin farm chemicals such as existing chrysanthemum ester class come out, this to the mankind have potentiality, infiltrative harm is anxious to be solved.

Purpose of the present invention is developed a kind of novel, efficient, nontoxic vegetable insecticide, replaces poisonous chemical pesticide.

The active ingredient of insecticide of the present invention is made up of the extract of several plants such as China tree, kuh-seng (Sophora alopecuroide), tobacco leaf, tarragon, Chinese honey locust.The weight ratio of active ingredient is China tree, kuh-seng (Sophora alopecuroide), tobacco leaf, tarragon, Chinese honey locust=3: 3: 2: 1: 1.Emulsifier accounts for 3-5%, and turpentine oil accounts for 5-10%, and bleeding agent accounts for 3-5%, and auxiliary agent accounts for 5-10%, and aromatic accounts for 2%.Extraction of effective components be with decocting method the medicinal material monomer be prepared into extract (by the preparation method of Chinese Pharmacopoeia, extract make, preparation synthesis technique flow process accompanying drawing 1) remove the impurity, resin, albumen etc. of extract again with alcohol deposition method, reclaim ethanol, add thinner or continue concentrated reaching, per 1 gram soup is equivalent to 4 grams of crude drug.Above-mentioned each active ingredient required fully to mix in proportion make insecticide.

The thinner of this insecticide is a clear water.Use spray-on process when being used for plant insecticide, be used for beast parasite and mange on one's body and adopt dipping, the spray of control soil insect to plant, soak seed.The extension rate that this insecticide is used for desinsection is 600-1000 times, is used for spray and plants 50 times, soaks seed 200 times, and the extension rate of medicament is 1000-1200 times when being used to prevent.

This medicament is through toxicology neasuring: small white mouse oral administration LD50 is 15000 milligrams/kilogram, and Amls tests positive.Chronic toxicity test shows does not have carcinogenic, teratogenesis, cause phenomenons such as change, so nontoxic to people and animals.

After the practicality of this medicament, through in chemical pesticides such as 40% Rogor, chlorophos contrasts result of use, find that its efficacy stability, wide spectrum, effect are remarkable.

Embodiment 1:

China tree: 300 grams

Kuh-seng (Sophora alopecuroide): 300 grams

Tobacco leaf: 200 grams

Tarragon: 100 grams

Chinese honey locust: 100 grams

Emulsifier: 50 grams

Turpentine oil: 100 grams

Bleeding agent: 50 grams

Auxiliary agent: 100 grams

Make insecticide stoste by aforementioned synthesis technique.

Embodiment 2:

The insecticide stoste of getting embodiment 1 is diluted to 500,1000,1,500 three multiples, carries out the radish aphid field control effectiveness test on rape ground, and other establishes, and contrast (not spraying medicine) was handled back 16 hours and the 3rd day (40 hours) only count aphid quantity.

To radish aphid field control effectiveness test result on June 6th, 1994

Export the rate that goes down=(aphid amount-processing back aphid amount before handling)/(aphid amount before the processing) * 100%

Handle investigation in back 16 hours, aphid is extracted lancet more, lose the ability that causes harm, very easily fall, contrast then continues to cause harm, and the aphid amount increases to some extent, and test shows, the spraying of 500,1000,1500 times of margosine vegetable insecticides after 16 hours insect population go down rate all more than 75%, the investigation insect population rate of going down reached more than 80% in 40 hours.

Embodiment 3:

Get example 1 soup and be diluted to 500 times, get city pin crystal chlorophos (Fushun Chemical Plant's products) and be diluted to 500 times, respectively with margosine insecticide and chlorophos flood 5 age silkworm polypide 10 seconds, with the tag general character of evaluation to lepidopterous insects.

Handle	Borer population	1 hour	12 hours	Lethality %
					500 times of horrified element pesticides of hardship soaked 10 seconds	60	The spasm of all stopping action	All dead	100
500 times of chlorophos soaked 10 seconds	60	Dead 15 all the other stop action	54 death	90
					The ck(clear water)	22	Normally	Normally	0

Embodiment 4:

Get example 1 and kill 500,1,000 two multiples of agent soup dilution and 40% dimethoate emulsifiable concentrate and the contrast of black peach aphid drug effect that are diluted to 500 times.Stay and do not spray the medicine contrast, repetition is not established in about 40 square metres of every processing, workers and peasants 16 type sprayer Chang Rongliang spraying.5 strains are decided in every processing at random before the dispenser, fixed 1 of every strain, and tokens statistics aphid amount, 48 hours statistics index blade aphid amounts are represented preventive effect with the insect population rate of going down after the dispenser.

Test shows: 500 times, 1000 times in margosine insecticide reaches 100% through 48 hours aphid rates of going down, and 500 times of preventive effects of Rogor of recommending for the locality are suitable.

Embodiment 5:

Get embodiment 1 made insecticide stoste and be diluted to 600 times, carry out dipping for 1000 sheep.Sheep with the back tracing observation, after bathing does not have external generations worm and mange takes place, and testing the invention margosine not only can desinsection, but can suppress the good medicine that fungi is livestock dip.

Show that through test in many ways the margosine vegetable insecticide is strictly, the insecticide of efficient, nontoxic, wide spectrum.Vast territory and abundant resources in China, Chinese herbal medicine resource is very abundant.Replace chemical pesticide with plant pesticide, the mankind that protected conservation of nature.

Claims

1, a kind of insecticide, it is characterized in that active ingredient mainly is made up of the extract of several plants such as China tree (melia toosendan), kuh-seng (Sophora alopecuroide), tobacco leaf, tarragon, Chinese honey locust.Extracting method be with cun section of China tree or kuh-seng (Sophora alopecuroide) tobacco leaf, tarragon, Chinese honey locust with decocting method respectively monomer decoct, gained decoction liquor low temperature is condensed into liquid extract or medicinal extract, remove impurity in the lotion and resin, albumen etc. with alcohol deposition method again, reclaim ethanol.Add emulsifier more in proportion, turpentine oil, bleeding agent, auxiliary agent, aromatic mix and form.

2, require described insecticide to it is characterized in that the weight ratio of active ingredient is China tree, kuh-seng (Sophora alopecuroide), tobacco leaf, tarragon, Chinese honey locust=3: 3: 2 according to right 1: 1: 1.Emulsifier accounts for 3-5%, and turpentine oil accounts for 5-10%, bleeding agent 3-5%, and auxiliary agent 5-10%, aromatic accounts for 2%.

3, require described insecticide to make usage according to right 1: it is characterized in that the extension rate of medicament is 600-1000 times when being used for desinsection, the extension rate of medicament is that 1000-1200 doubly exerts oneself to spray to plant 50 times when being used to prevent, and is used for molten 500 times of medicine.