CN1144602A - Plant agricultural chemical for prevention and control of bollworm and its preparation method - Google Patents
Plant agricultural chemical for prevention and control of bollworm and its preparation method Download PDFInfo
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- CN1144602A CN1144602A CN 96115889 CN96115889A CN1144602A CN 1144602 A CN1144602 A CN 1144602A CN 96115889 CN96115889 CN 96115889 CN 96115889 A CN96115889 A CN 96115889A CN 1144602 A CN1144602 A CN 1144602A
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- cotton
- bollworm
- cotton bollworm
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Abstract
An agricultural chemical for cotton ballworm is prepared from several kinds of medicinal plants through extracting their active components in boiling water and concentration. Before use, it is diluted by 300 times. Its advantages include high ballworm-killing rate up to 95.7% and ball-keeping rate up to 94.5%, high safety, low cost and no drug-resistance to ballworm.
Description
The invention belongs to pesticide field, is a kind of plant pesticide that effective ingredient is made that extracts from Chinese herbal medicine.
Cotton bollworm is worldwide insect, is distributed in 50 ° of Europe, Asia and Africas to 50 ° in south latitude of north latitude, various places, Australia, at 1821.5 meters of height above sea level trace is arranged still.Also generally take place in a large number again in each cotton region of China, the normal development that Cotton in China is produced in serious harm.The control cotton bollworm has become a difficult problem in vast cotton region.
Because a large amount of uses of chemical pesticide have produced after a series of side effects, strengthen the research and development of nuisanceless medicament for many years, also become the core work of whole plants integrated pest prevention and control already, the development and use of plant pesticide are exactly one of them.Produce both at home and abroad and go up the practice of more useful plant component desinsections early, but all be folk prescription or simple application, do not form the situation of prescription and industrialized mass production and large-area applications as yet, moreover use multiple low, the cost height.
It is a kind of nontoxic to people, animal that order of the present invention is to provide, harmless to the cotton bollworm natural enemy, the efficient cotton bollworm agricultural chemicals that kills of no pesticide resistance.
Solution of the present invention is to be raw material with some preferred medicinal plants, and through composition of prescription, therefrom effective component extracting is mixed with the plant pesticide of cotton bollworm extremely.This Chinese medicinal herbs includes Dalmatian chrysanthemum, the root of langdu, kuh-seng, azedarach, euphorbia lunulata, frutus cnidii and aloe etc., all has insecticidal action, the proportioning of constituent is the Dalmatian chrysanthemum of (weight %): 15-25 behind its composition of prescription, the euphorbia lunulata of the root of langdu of 5-15, the kuh-seng of 5-15,5-15 azedarach, 5-15, the frutus cnidii of 5-15, the aloe of 25-35.The said components boiling is extracted and is obtained said plant pesticide.
The Chinese medicine constituent that composition of prescription of the present invention becomes, make the said plant pesticide of preventing and treating cotton bollworm according to the following steps: the Chinese herbal medicine that a) in a boiling container, adds proportional quantity, adding cold water soaked 1-2 hour, with amount of moisture 10 times of herbal medicine total amount, make the abundant swelling of vegetable fiber, so that wherein effective ingredient fully leaches; B) thing is leached in heating, mixed material is heated to boils, and constantly stirs, and boils one hour before continuing again, leaches filtrate thereafter, and filter residue adds water again and repeats to decoct one to twice, so that fully extract the active principle in the herbal medicine.Amount of water when repeating to decoct is that the each heating of about five times of filter residue decocted one hour.C) merging filtrate, concentrated filtrate to a three/volume adds an amount of degreasing agent again, preservative and stabilizing agent, the mixing dress is finished product.300 times of thin ups again during use evenly spray with sprayer, must make soup contact polypide, spray once every four days, require finely during sprinkling, and result of use is not best when cotton sandfly worm pierces in the cotton boll.5-10 days control efficiency are 95-2%-95.7% after the medication of field, and are 95.8%～97.2% to the survival rate of primary pest natural enemies such as ladybug.
Further specify the present invention with a concrete instance more now.In a digester, drop into 50 kilograms of Chinese herbal medicines comprising: 10 kilograms of Dalmatian chrysanthemums, vicious 2.5 kilograms, 5 kilograms of kuh-sengs, 7.5 kilograms of azedaraches, 2.5 kilograms of euphorbia lunulatas, 5 kilograms of frutus cnidiis, and 17.5 kilograms of aloes, add 500 kilograms in water, soaked 1-2 hour under the room temperature, thereafter slow fire is heated to boiling, constantly stir stirring, continue again to decoct one hour.Take advantage of heat filtering, approximately can obtain 250 kilograms of filtrates, filter residue is put in the pot again, adds 250 kg of water.Be heated to and boil, decoct again after one hour and to filter, so repeat one or twice.About 380 kilograms of merging filtrate.Be brown extract.Add an amount of degreasing agent again about concentrating filter liquor to 125 kilogram, packing is used behind preservative and the stabilizing agent mixing.
For showing the toxic effect of the present invention to cotton sandfly worm.Plant protection test method has routinely been done insecticidal action and field control effectiveness test in the medicament chamber respectively.And done this medicament natural enemy injury and bollworm resistance have been measured.
1, the mensuration of insecticidal action in the medicament chamber: according to the FAO standard, picking up from 1 age on the cotton and the cotton bollworm larvae in 3 ages, in soup of the present invention, soak 3-5 respectively after second respectively, inhale with blotting paper and remove unnecessary soup; If 50,5 concentration of 100,200,300 and 400 (doubly) are handled, single head is inserted in the culture dish of the diameter 5.0cm left and right sides and is fed after handling, and is treated to contrast with clear water.Respectively at handling back 24,48 and 72 (h) observed and recorded polypide death condition, 50 larvas of every processing, test repetition 4 times.The results are shown in Table 1
The indoor insecticidal action measurement result of table 1 medicament
Number (head) the school lethality (%) of surviving after medication worm medicament in age multiple is handled number
24 48 72(h) 24 48 72(h)
300 50 0.3 0.3 0.0 99.4 99.3 99.91 400 50 4.0 2.7 2.5 91.6 94.3 94.6
CK 50 48.0 47.0 46.3 -- -- --
50 50 0.0 0.0 0.0 99.9 99.9 99.9
100 50 2.5 2.3 2.3 95.0 95.0 95.33 200 50 9.7 7.0 6.8 80.6 85.9 86.7
300 50 16.0 15.5 14.5 68.0 68.7 70.9
400 50 29.5 29.3 29.3 41.0 40.8 42.8
CK 50 50.0 49.5 49.5 -- -- --
Result of the test draws, and 5～200 times of soups of medicament of the present invention are 100% to the corrected mortality of cotton bollworm 1 instar larvae, and the corrected mortality of 300 and 400 times of soup processing after 48 hours is 99.3% and 94.3% as seen from Table 1 in addition.50, the lethality of 100,200,300 and 400 times of right 3 instar larvaes of liquid is 99.9%, 95.3%, 85.9%, 68.7% and 40.8%, and its 3 instar larvae toxicity regression formula is; Y=3.7415-0.2398X, R=-0.9740, LC
50=348.02, field control effectiveness test
(1) the sub-district test of pesticide effectiveness
On the basis that indoor insecticidal action is measured, with 100,200 and 300 (doubly) soup, in 6～August 2～3 generation cotton bollworm ovum hatching Sheng phase and low instar larvae phase, in the cotton field on ground such as Changyue County, make the sub-district test of pesticide effectiveness, adopt district's group arrangement at random, sub-district area 66.7m
2, use workers and peasants-16 knapsack sprayer spray medicine.Take a sample with 5 diagonal, every some mark 10 strains of listing, investigation worm's ovum number and larva number are made radix before medication, respectively at 2,4 and 6 days difference investigation records polypide death condition after the medication, calculate the insect population rate that goes down and go down rate as control efficiency with the correction insect population.Test is contrast (CK1) with the conventional control that waits chemical agent for cotton refreshing No. 1 and is contrast (CK2) to spray clear water.Repeat 4 times.The results are shown in Table 2 table 2 field plot trial results (Accessories during Binzhou 1994.8)
The number (head) of surviving behind the medicine is proofreaied and correct the insect population number in the ovum that goes down before 6 days post processing medicines of rate (%) medication
Protect the flower bud effect
(150 strain) 2b 4b 6b 2b 4b 6b (%) 300 * 103.5 9.5 9.3 11.3 90.9 91.2 89.3 91.5 CK1 81.3 6.3 9.5 12.0 92.3 88.5 85.4 88.3 CK2 98.0 102.3 105.5 108.0--------in the table 2 CK1 be the middle guarantor No. 1 and the bell light that goes out
(2) the land for growing field crops preventive effect is measured
On Accessories during Binzhou and Changyue County and other places, 300 times of soups of the present invention are set handle, be contrast (CK1) and not make medicine be blank (CK2) with the conventional control of 20% Methomyl and cotton refreshing No. 1 chemical agent such as missible oil, repeat 4 times, the sub-district area is 33.4m
2, adopt district's group arrangement at random.Test was carried out in the cotton bollworm low instar larvae emergence period, made medicine with workers and peasants-16 type knapsack sprayer.Investigation hundred strain ovum worms amount is radix before the medication, respectively at after the medication 2～10 (day) fixed point investigation records hundred strain insect extant numbers, calculate insect population rate and the correction insect population rate that goes down that goes down; And check and calculate hundred strain cotton buds and bolls numbers and killed cotton buds and bolls number and protect the bell effect, the results are shown in Table the field control effect (Accessories during Binzhou Dan Si township, 1995.8) of 3 tables 3 pair cotton bollworm
The number (head) of surviving behind the preceding hundred strain medicines of medicine is proofreaied and correct the insect population 10 days medicament titles that go down behind rate (%) medicine and is used ovum worm amount to protect the flower bud effect
Clear 4 times 168.5 5.5 6.0 7.0 95.69 5.79 5.2 94.5 CK1 of mode (grain) 2b 5b 10b 2b 5b 10b (%) cotton boll are 154.0 3.5 9.7 12.0 91.59 2.49 1.2 91.0 CK2--162.5 123.5 136.0 141.3--------alternately
Draw from above result of the test, in the bollworm eggs hatching Sheng phase, the processing that continuous use is 4 times, control efficiency is best.10 days guarantor flower bud effect is 94.5% behind its medicine, and comparison is high by 3.5% according to the chemical agent processing.And pilot survey finds that the cotten aphid quantity of medication treatment region obviously is less than the blank district.
3, the mensuration that natural enemy is injured
When the land for growing field crops medication prevents and treats, look into the par of the hundred strains children adult of main natural enemy kind such as ladybug before the medication, the medication postfixed point is investigated the dead and survival number of hundred strains, determines lethal effect and the safety of medicament to natural enemy.
The survey showed that, in the wide field trial of Accessories during Binzhou, and investigation before the medication, the number of ladybug is 41.5 on the hundred strain cottons; Used continuously behind 300 times of soups of the present invention 4 times 2 days, investigating the hundred strains borer population of living is 40.7, and its survival rate is 97.8%; Observation after 5 days, hundred strains borer population alive is 39.5, in 4 kinds of chemical agent conventional controls of No. 1 grade of middle guarantor check plot, investigation before the medication, the ladybug radix is 39.3,2,5 and 10 days survival numbers are respectively 4.7,5.3 and 100.5 after the medication, and its survival rate is respectively 12.0%, 13.5% and 26.7%.The blank district, radix is 41.7 before handling, and is respectively 44.0,49.5 and 58.3 after the processing, handling the back increases by 5.6%, 18.7% and 37.4%.
4, the preliminary cultivation of bollworm resistance is measured
In June, 1994, fixedly install 3 sub-districts in cotton field, Changyue County, every sub-district area is 33.4m
2, used 400 times of liquid of medicament of the present invention 1 time, totally 16 times every 7～10 days in the cotton bollworm emergence period; After 8,12 and 16 times, measure during the lc50 of 3 remaining instar larvaes in to the sub-district, and with medication before the lc50 value relatively.
By continuous use 16 times in the cotton field of 2 years fixed points, regularly cotton bollworm 3 instar larvaes are carried out the mensuration of indoor insecticidal action with medicament of the present invention, 8th, measure after 12 and 16 times, the lc50 value of larva is respectively 345.0,358.7 and 339.0, with 348.0 indifferences before the medication.Think that tentatively cotton bollworm does not have pesticide resistance to medicament of the present invention.Thereby the complicated and diversified characteristics of the active ingredient that has also shown medicament of the present invention.
Observation to plant corpus simultaneously shows that plant uses this medicine also not have the poisoning appearance.
In the mensuration of medicament toxicity, utilize small white mouse and white rabbit to carry out conventional determining, do not find intoxicating phenomenon through the result of animal toxicity test yet.Be that this medicament is nontoxic to people and animals.
In sum, the present invention reaches 300 times of liquid through the field working concentration; The corrected mortality that indoor insecticidal action is measured cotton bollworm 1 instar larvae is 99.4%.5-10 days control efficiency is 95.2%～95.7% after the field reagent effect, than 91.2%～92.4% control efficiency of conventional chemical medicament contrast, mean height 3.7%, and after the medication 10 days, the former guarantor flower bud effect is 94.5%, and the latter's is 91.0%, and the former is higher by 3.5% than the latter; After the land for growing field crops made with medicament, the survival rate of primary pest natural enemies such as ladybug was 95.8%-97.2%; Make the plant corpus of with medicament all not have the poisoning appearance; Through animal toxicity test, medicament is nontoxic to people and animals, and medicament has multiple desinsection composition, and mechanism of action complexity is various, measures cotton bollworm through preliminary pesticide resistance inducing culture medicament of the present invention is not had the pesticide resistance generation.
Further specify the present invention with several examples more below, but be not confined to this several example formulations scopes. example 123 component % Dalmatian chrysanthemums 20 15 18 roots of langdu 5 10 8 kuh-sengs 10 15 12 azedaraches 15 10 10 euphorbia lunulatas 5 15 10 frutus cnidii 10 5 10 aloes, 35 30 32 effects (1: 300) killing rate % 99.1 97.2 98.5 poisoning do not have poisoning and do not have poisoning and do not have poisoning
Claims (2)
1, a kind of plant pesticide of preventing and treating cotton bollworm, form by multiple Chinese herbal medicine decoction, it is characterized in that including Dalmatian chrysanthemum, the root of langdu, kuh-seng, azedarach, euphorbia lunulata, the extract of kinds of traditional Chinese medicines such as frutus cnidii and aloe prescription, the constituent of its batching medicinal material are joined this and are (weight %):
Dalmatian chrysanthemum 15-25
Root of langdu 5-15
Kuh-seng 5-15
Azedarach 5-15
Euphorbia lunulata 5-15
Frutus cnidii 5-15
The traditional Chinese medicine boiling of the above-mentioned composition of aloe 25-35 is extracted and is obtained said plant pesticide.
2, according to the production method of the described plant pesticide of claim 1, it is characterized in that the kinds of traditional Chinese medicines constituent, make said control cotton bollworm agricultural chemicals by following processing step;
A), take by weighing the Chinese herbal medicine of proportional quantity, add cold water and soaked 1-2 hour;
B), heating boils the back and continue to decoct one hour, leaches filtrate thereafter, filter residue adds water and repeats to fry in shallow oil one or twice;
C), merging filtrate, concentrated filtrate to three/one volume;
D), add an amount of degreasing agent, preservative and stabilizing agent are finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115889 CN1144602A (en) | 1996-07-22 | 1996-07-22 | Plant agricultural chemical for prevention and control of bollworm and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96115889 CN1144602A (en) | 1996-07-22 | 1996-07-22 | Plant agricultural chemical for prevention and control of bollworm and its preparation method |
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| Publication Number | Publication Date |
|---|---|
| CN1144602A true CN1144602A (en) | 1997-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96115889 Pending CN1144602A (en) | 1996-07-22 | 1996-07-22 | Plant agricultural chemical for prevention and control of bollworm and its preparation method |
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| CN (1) | CN1144602A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640765A (en) * | 2012-04-18 | 2012-08-22 | 王振伟 | Green and novel crop pest repellent |
| CN103548895A (en) * | 2013-10-27 | 2014-02-05 | 来光业 | Botanical vegetable insecticide |
| CN105394095A (en) * | 2015-12-10 | 2016-03-16 | 梁丁 | Composition capable of killing cotton bollworm |
| CN105557763A (en) * | 2016-01-25 | 2016-05-11 | 陶遥力 | Novel plant source insecticidal bactericide and preparation process thereof |
| CN106342919A (en) * | 2016-08-25 | 2017-01-25 | 合肥市田然农业科技园有限公司 | Medicine for preventing and treating grape oides decempunctata billberg |
| CN106472616A (en) * | 2016-10-14 | 2017-03-08 | 袁宗英 | A kind of bollworm Pesticidal combination and preparation method thereof |
| CN115005241A (en) * | 2022-06-30 | 2022-09-06 | 黑龙江省农业科学院齐齐哈尔分院 | Plant-derived pesticide, preparation method and application thereof |
-
1996
- 1996-07-22 CN CN 96115889 patent/CN1144602A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640765A (en) * | 2012-04-18 | 2012-08-22 | 王振伟 | Green and novel crop pest repellent |
| CN102640765B (en) * | 2012-04-18 | 2014-11-19 | 王振伟 | Green and novel crop pest repellent |
| CN103548895A (en) * | 2013-10-27 | 2014-02-05 | 来光业 | Botanical vegetable insecticide |
| CN103548895B (en) * | 2013-10-27 | 2015-04-15 | 来光业 | Botanical vegetable insecticide |
| CN105394095A (en) * | 2015-12-10 | 2016-03-16 | 梁丁 | Composition capable of killing cotton bollworm |
| CN105557763A (en) * | 2016-01-25 | 2016-05-11 | 陶遥力 | Novel plant source insecticidal bactericide and preparation process thereof |
| CN106342919A (en) * | 2016-08-25 | 2017-01-25 | 合肥市田然农业科技园有限公司 | Medicine for preventing and treating grape oides decempunctata billberg |
| CN106472616A (en) * | 2016-10-14 | 2017-03-08 | 袁宗英 | A kind of bollworm Pesticidal combination and preparation method thereof |
| CN115005241A (en) * | 2022-06-30 | 2022-09-06 | 黑龙江省农业科学院齐齐哈尔分院 | Plant-derived pesticide, preparation method and application thereof |
| CN115005241B (en) * | 2022-06-30 | 2024-01-26 | 黑龙江省农业科学院齐齐哈尔分院 | Botanical pesticide, preparation method and application thereof |
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