Nuisanceless medicinal herb pesticide and preparation method thereof
The invention belongs to agricultural chemicals, be specifically related to a kind of natural plant agricultural chemicals, by seed dressing, soil land disposal or foliage spray, the various pests that can prevent and treat vegetables, fruit tree and cereal crops effectively with the Chinese herbal medicine preparation.
The insecticide pesticide that uses generally is chemicals at present, these chemical pesticides have stronger lethality to insect, but often cause vegetables, fruit to have remains of pesticide, and chemical pesticide has also caused injury to natural enemy-beneficial insect of insect, insect loses the nature restrained force, and activity is more rampant, causes spray medicine number of times and dosage to increase, residue of pesticide surpass acceptable dose, jeopardize the person poultry safety.
Contain noxious materials such as organic phosphor, organochlorine in the chemical pesticide, these are liposoluble substance, can not be digested in vivo, more can not be absorbed decomposition, but, in people's carcass, produce enrichment along with the circulation and the diffusion of food chain, influence health.
In addition, in use, the direct contaminated soil of chemical pesticide, water source, cause the deterioration of the ecological environment, become the world's one big public hazards.
The Chinese herbal medicine agricultural chemicals of new generation that the purpose of this invention is to provide a kind of efficient, low toxicity, odorlessness, noresidue; this agricultural chemicals has stronger stomach to kill and the function of tagging to insect; nontoxic to people and animals; plant there is not poisoning; do not injure natural enemy; drug effect is steady, and longer duration plays positive role to conservation of nature environmental ecology balance.
Technical solution of the present invention is: utilize contained chemical composition of a part of Chinese herbal medicine and alkaloid that there is stronger lethality in agricultural insect pest, at different types of insect, these Chinese herbal medicine roots, stem, leaf are made aqua and two kinds of formulations of pulvis.
Aqua is mainly used in foliage spray, can prevent and treat aphid, cabbage caterpillar, two spotted spider mite and the cotton sandfly worm etc. of various crops.The aqua prescription is composed as follows:
Typhonium giganteum 5-10% radix aconiti agrestis 0.5-3% rhizoma arisaematis 0.5-2%
Celastrus orbiculatus 5-20% gamboge 5-20% kuh-seng 10-15%
Hairyvein agrimony 10-20% garden burnet 5-20% Chinese honey locust 5-15%
Asafoetide 5-15% Aztec tobacco 10-20%;
Its manufacture craft flow process is: ingredient inspection preparation → flushing → decoction → concentrate → precipitation → filtration → quality inspection, chemical examination → bottling → packing.
Pulvis is mainly used in seed dressing and soil land disposal, can prevent and treat various soil insects, as cutworm, grub, mole cricket etc.The pulvis prescription is composed as follows:
Typhonium giganteum 5-10% radix aconiti agrestis 0.5-3% rhizoma arisaematis 0.5-2%
Celastrus orbiculatus 5-20% kuh-seng 10-15% hairyvein agrimony 10-20%
Garden burnet 5-20% Chinese honey locust 5-15% alum 10-20%
Sulfur 10-30% ferrous sulfate 5-20%.
Its manufacture craft flow process is: preparation raw material → shred → clean → dry → pulverize → sieve → quality inspection → pack → packing in proportion.
Technical target of the product of the present invention requires:
Title | Physical and chemical index | PH value | Contain matrine (C
15H
24N
2O)
| Concentration |
The medicinal herb pesticide pulvis | Pale brown look pressed powder (by 70 mesh standard sieves) | 5.0-6.5 | 0.10% | Water content≤3% |
The medicinal herb pesticide aqua | Pale brown look thickness suspendible liquid | 5.0-6.5 | Contain 0.04% | Baume degrees is 15-20% |
According to the requirement of the agriculture and animal husbandry Room, Shanxi Province plant protection master station, specify in flat water agent such as the agriculture and animal husbandry Room, Hubei Province plant protection master station and academy of agricultural sciences, Shanxi Province, Vegetable Research Institute, Cotton Research Institute, agriculture and animal husbandry Room plant protection master station, Yuncheng Prefecture's plant protection unit, Xia County plant protection unit and pulvis carries out two places test in 2 years, effect is all very good.Seeds such as pulvis seed dressing corn, wheat, cotton, soil insects such as control of grubs, mole cricket, cutworm effectively; Aqua is used for foliage spray, can prevent and treat cotten aphid, cotton bollworm, vegetable aphid, cabbage caterpillar, fruit aphid, heart-eating worm, mite class, pear leaf worm etc. effectively.
Medicinal herb pesticide of the present invention carries out acute toxicity experience through Shanxi Medical College to big white mouse per os, skin, observe after the administration not have in two weeks and poison and death, according to China's agricultural chemicals acute toxicity classification tentative standard, this agricultural chemicals belongs to low toxicity, through Shanxi Medical College to the mucocutaneous irritant test that carries out of rabbit, skin irritatin reacts on the 3rd day and recovers normal, and according to " criterion of skin irritatin intensity ", this agricultural chemicals is the minimal irritation effect to skin.
In sum, medicinal herb pesticide of the present invention has efficiently, low toxicity, free from environmental pollution, odorlessness, nuisanceless, to advantages such as people, animal, fowl safety, this application often, for optimizing natural environment, maintaining ecological balance, reduce production costs, improve the fruits and vegetables grain and oil quality.Increase economic benefit, promoting health all has great benefit, is desirable novel agrochemical.
Further specify the present invention below in conjunction with embodiment:
The used aqua prescription of the embodiment of the invention consists of:
Typhonium giganteum 1% radix aconiti agrestis 2% rhizoma arisaematis 1%
Celastrus orbiculatus 10% gamboge 10% kuh-seng 12%
Hairyvein agrimony 12% garden burnet 15% Chinese honey locust 10%
Asafoetide 10% Aztec tobacco 10%;
With above-mentioned medicament according to the technological process decocting and concentrating after, carry out Baume degrees and measure, qualified index is 15-20%.
The used pulvis prescription of the embodiment of the invention consists of:
Typhonium giganteum 8% radix aconiti agrestis 2% rhizoma arisaematis 1%
Celastrus orbiculatus 10% kuh-seng 12% hairyvein agrimony 12%
Garden burnet 15% Chinese honey locust 10% alum 10%
Sulfur 10% ferrous sulfate 10%.
Above-mentioned medicament is dried grinding and sieving according to technological process, and granularity is the 70-120 order.
Embodiment 1: the present invention carries out the test of pesticide effectiveness through agriculture chemical examination place, the Shanxi Province Southern Suburb Jin Yuan of Taiyuan City to cabbage pieris, and reagent agent is the Chinese herbal medicine aqua, and the contrast medicament is 20% sumicidin missible oil (a SUMITOMO CHEMICAL product).Test method: the medicinal herb pesticide aqua restrains (stoste), 20 grams, 13 grams, sumicidin missible oil 20 grams for every mu 40, blank, and for five processing, three repetitions, randomized arrangement, sub-district area 70m
2, in the cabbage caterpillar occurance peak, with the manual sprayer foliar spray once, every mu adds 40 kilograms in water.Blank spray clear water.
Result of the test shows that medicinal herb pesticide aqua control cabbage pieris has very high insecticidal activity.Every mu 13 gram has all showed good preventive effect to 40 grams (stoste), and preventive effect is the highest be every mu 40 gram, dispenser one day after, preventive effect reaches 91.1%, contrasting medicament 20% Belmark is 93.4%, it is suitable that the two desinsection is knocked down the speed preventive effect.But the Chinese herbal medicine lasting period is long, and 10 days medicinal herb pesticide preventive effects are 97.9% behind the medicine, and Belmark is 92.6%.
Embodiment 2: the present invention carries out the test of pesticide effectiveness at the Southern Suburb Wu Su of Taiyuan City to cabbage pieris through Shanxi Province's plant protection master station, and the contrast medicament is 20% sumicidin missible oil (a SUMITOMO CHEMICAL product).40 kilograms of every mu of dispenser liquid, two days desinsection speed is lower than contrast agricultural chemicals Belmark behind the medicine, and control efficiency reaches 80-90% after five days, and near the contrast agricultural chemicals, effect still maintains 78-93% after 10 days, is better than contrasting agricultural chemicals.
Conclusion: adopt the 500-1000 times of cabbage caterpillar on the medicinal herb pesticide liquid control wild cabbage that the better prevention effect is arranged, suggestion is applied in vast vegetables district.
Embodiment 3: the present invention carries out the test of pesticide effectiveness in Yu Wangxiang Xiqin, Xia County, Shanxi Province village to cotten aphid through Xia County plant protection unit, the contrast medicament is 1000 times of liquid of 40% omethoate emulsifiable solution (commercially available Chongqing products), investigate 10 hours respectively behind the spray medicine, 24 hours, 48 hours, hundred strains, three tree louses after 72 hours are measured the rate that goes down, 500-800 times of liquid control efficiency of medicinal herb pesticide aqua is better, hundred strains, the three tree louses amount rate that goes down increases in time gradually, can reach 88.4% after 48 hours, still maintain 85-86% after 72 hours, drug effect continues steadily, and the contrast medicament rate that goes down after 24 hours also only is 89%, and reduces gradually later on.
Conclusion: the flolimat effect is seen and contrasted to the medicinal herb pesticide aqua on control cotten aphid effect approaching; though drug effect is slow, steadily continue, and specific investment is comparatively economical mutually with tester; to person poultry safety's noresidue, be the desirable medicament of protection environmental development nothing evil agricultural chemicals.
Embodiment 4: the present invention carries out the test of pesticide effectiveness in cotton region, south, Shanxi Province to cotton bollworm through academy of agricultural sciences, Shanxi Province Cotton Research Institute.Adopting medicinal herb pesticide and 5% to come the good fortune spirit (is japanese product, buy back in market) check experiment, repeat for three times, small plot experiment, district's group is arranged at random, and its conclusion is: use 500-1000 times of medicinal herb pesticide to come the good fortune spirit similar for 1500 times to the control efficiency fundamental sum of cotton bollworm, medicinal herb pesticide is safer to cotton field enemy, and free from environmental pollution, cost comes the good fortune spirit greatly to descend, and the suggestion large-scale demonstration is promoted.
Embodiment 5: the present invention has arranged the contrast plantation of corn, wheat seed dressing control soil insect in area just outside a city gate, Xia County town and low bank between fields palm Zhenan County through academy of agricultural sciences, Shanxi Province Cotton Research Institute, (" 3911 " plant the clothing agent to adopt medicinal herb pesticide, thimet, for commercially available), three treatment regions of blank, emergence rate and growing way are observed in segmentation.Conclusion is as follows: the existing pest-resistant effect of medicinal herb pesticide, can produce the physiological stimulation effect again, and promote the early stage effective tiller of wheat, with the medicinal herb pesticide seed dressing, compare full stand and healthy seedling, dark green leaf color, more, the well developed root system of secondary root with thimet.