CN1421139A - Recompounded biological farm pesticide and the prepn of its suspension and wettable powder - Google Patents
Recompounded biological farm pesticide and the prepn of its suspension and wettable powder Download PDFInfo
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- CN1421139A CN1421139A CN02115899A CN02115899A CN1421139A CN 1421139 A CN1421139 A CN 1421139A CN 02115899 A CN02115899 A CN 02115899A CN 02115899 A CN02115899 A CN 02115899A CN 1421139 A CN1421139 A CN 1421139A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The present invention is re-compounded biological farm pesticide and the preparation of its suspension and wettable powder. The main components of the re-compounded biological farm pesticide include bacillus thuringiensis, avermectin and matrine. It is prepared into suspension and wettable powder for higher pesticidal effect, wide pesticidal spectrum, fast pesticidal speed, low cost and delayed resistance.
Description
Technical field:
The present invention relates to biological insecticides, relate in particular to the biopesticide compounded pesticides, the invention still further relates to the method that the biopesticide compounded pesticides prepares suspending agent or wetting powder.This biopesticide compounded pesticides can be used for preventing and treating crops such as grain, cotton, tobacco, sugarcane, oil plant, and the various pests on vegetables, gardens, fruit tree, flowers and the Chinese herbal medicine.
Background technology:
Bacillus thuringiensis (Bt) is to develop the earliest, use the most successful biological insecticides, the history in existing 64 years.The Bt product at home and abroad has more than 100 kinds, and formulation has pulvis, suspending agent, granule etc.Selling in external year has more than 100,000,000 dollar, and domestic have manufacturer more than 70 individual, about 30000 tons of year output, sales volume 1.4 hundred million RMB.Bt has played important function in control of insect, still, this product exists insecticidal spectrum narrower, and drug effect is slow, and the insect that has has produced deficiencies such as resistance, it is further used be restricted.Avermectin (Av) is that insecticidal spectrum is wide and have the biopesticide of action of contace poison, and external annual sales amount reaches more than 2,000,000,000 dollars.Domestic have produce 6 in former pharmaceutical factory man, be engaged in more than 100 of the producers of being processed into product, year output is about 5500 tons at present, about 400,000,000 yuans of sales volume.The advantage of Avermectin is that consumption is little, and effect is good, and insecticidal spectrum is wide, and effectively pest control and mite class also have very good effect to parasite.Its weak point is, costs an arm and a leg, and the insect that has develops immunity to drugs, and certain toxicity is arranged.Plant pesticide is the new focus of developing in the agricultural chemicals, and the matrine agricultural chemicals is exactly its successful product, and domestic existing producer is 13 at present, more than 1000 ton of annual production, about 100,000,000 yuan of sales volume.The advantage of matrine agricultural chemicals is nontoxic to the people, and insect is had action of contace poison, the insecticidal spectrum broad, and its weak point is, costs an arm and a leg, and use is not ideal enough to the insect drug effect separately, and drug effect is slow.
In order to bring into play the advantage separately of biopesticide, overcome its drawback, improve biopesticide drug effect, widen its desinsection scope, reduce cost and lower agricultural chemicals to people's toxicity and to the harm of environment, employing is mutually between the biopesticide of synergy or carry out composite achieving the above object between biopesticide and the chemical pesticide usually.Composite between composite and biopesticide between the biopesticide and the chemical pesticide, existing many formulations, for example: bacillus thuringiensis (Bt) is composite with biological pesticide avermectin (Av), botanical pesticide matrine and nicotine, Bt and chemical pesticide, Av and chemical pesticide, matrine and chemical pesticide, has formed tens of kinds of compounded pesticides formulations.These composite dose has been improved insecticidal effect, has accelerated the speed of deadly insect, has widened the desinsection scope, has reduced the toxicity of poisonous agricultural chemicals, has also reduced pesticide cost simultaneously, delays insect and develops immunity to drugs, and is with a wide range of applications.
Summary of the invention:
The purpose of this invention is to provide a kind of biopesticide compounded pesticides, the Main Ingredients and Appearance of this compounded pesticides is bacillus thuringiensis (Bt), Avermectin (Av) and matrine, another object of the present invention provides the method that this biopesticide compounded pesticides prepares suspending agent and wetting powder, this compounded pesticides has improved the desinsection drug effect, widened the desinsection scope, accelerate desinsection speed, reduced pesticide cost, delayed the generation of pest resistance to insecticide.
In order to achieve the above object, a kind of biopesticide compounded pesticides of the present invention mainly is made up of biopesticide bacillus thuringiensis (Bt), Avermectin (Av) and matrine.
The proportioning of Bt, Av and matrine is (percentage by weight):
400～8000 tire/Bt of milligram accounts for 99.6～99.92, the Bla among the Av accounts for 0.03～0.2, matrine (C
15H
24O) account for 0.05～0.2.
The better proportioning of Bt, Av and matrine is (percentage by weight):
2000～8000 tire/Bt of milligram accounts for 99.6～99.8, the B1a among the Av accounts for 0.1～0.2, matrine (C
15H
24O) account for 0.1～0.2.
The best proportioning of Bt, Av and matrine is (percentage by weight):
4000～8000 tire/Bt of milligram accounts for 99.6～99.8, the Bla among the Av accounts for 0.1～0.2, matrine (C
15H
24O) account for 0.1～0.2.
In the said ratio, when Av is not pure Bla, press the content conversion of Bla among the Av; When matrine is not pure product, by the content of matrine conversion.
The preparation method that above-mentioned biopesticide compounded pesticides is made suspending agent is:
1, gets Bt, Av and matrine by the ratio requirement of biopesticide compounded pesticides, when Bt, Av and matrine are liquor, Bt, Av are added in the agitator tank with matrine, add the TX-10 of compounded pesticides gross weight 2～6% or azone class (as: 961) bleeding agent of farming newborn 0203 emulsifier, compounded pesticides gross weight 2～6% again, add again and satisfy the water that compounded pesticides is tired and required Bt, got final product in 1 hour with 100～200 rev/mins speed stirrings.
Describedly satisfy compounded pesticides the Bt water that requires of tiring is meant: the weight * Y that adds the compounded pesticides gross weight * X=compounded pesticides raw material Bt behind the water; Wherein X is a compounded pesticides to tiring/microlitre that Bt requires, and Y is tiring/microlitre as the Bt of compounded pesticides raw material; Be weight=compounded pesticides gross weight-(weight of the weight+bleeding agent of the weight+emulsifier of weight+matrine of Av) of water.
2, get Bt, Av and matrine by the ratio requirement of biopesticide compounded pesticides, when Bt is a pulvis, when Av and matrine are liquor, earlier Bt is added in the agitator tank, adding can make the water of Bt pulvis dissolving, stirs 1 hour with 100～200 rev/mins speed; Again Av and matrine are added in the agitator tank, add azone class (as: 961) bleeding agent of the TX-10 of compounded pesticides gross weight 2～6% or farming newborn 0203 emulsifier, compounded pesticides gross weight 2～6% again and satisfy the water that compounded pesticides is tired and required Bt, got final product in 1 hour with 100～200 rev/mins speed stirrings.
Describedly satisfy compounded pesticides the Bt water that requires of tiring is meant: the weight * Y that adds the compounded pesticides gross weight * X=compounded pesticides raw material Bt behind the water; Wherein X is a compounded pesticides to tiring/microlitre that Bt requires, and Y is tiring/microlitre as the Bt of compounded pesticides raw material; Be weight=compounded pesticides gross weight-(weight of the weight of the weight+bleeding agent of the weight+emulsifier of weight+matrine of Av+dissolving Bt water) of water.
3, get Bt, Av and matrine by the ratio requirement of biopesticide compounded pesticides, when Bt is a pulvis, Av is a crystalline solid, when matrine is liquor, earlier Bt is added in the agitator tank, adding can make the water of Bt pulvis dissolving, stirs 1 hour with 100～200 rev/mins speed; In another container, it is 1～2% AV mother liquor that the Av crystalline solid is become Bla content with a kind of dissolution with solvents in toluene, dimethylbenzene, acetone or the isopropyl alcohol, again the AV mother liquor is added in the agitator tank with matrine, add azone class (as: 961) bleeding agent of the TX-10 of compounded pesticides gross weight 2～6% or newborn 0203 emulsifier of farming, compounded pesticides gross weight 2～6% and satisfy the water that compounded pesticides is tired and required Bt, got final product in 1 hour with 100～200 rev/mins speed stirrings.
Describedly satisfy compounded pesticides the Bt water that requires of tiring is meant: the weight * Y that adds the compounded pesticides gross weight * X=compounded pesticides raw material Bt behind the water; Wherein X is a compounded pesticides to tiring/microlitre that Bt requires, and Y is tiring/microlitre as the Bt of compounded pesticides raw material; Be weight=compounded pesticides gross weight-(weight of the weight of the weight+bleeding agent of the weight+emulsifier of weight+matrine of Av+dissolving Bt water) of water.
The preparation method that the biopesticide compounded pesticides is made wetting powder is:
4, get the Bt pulvis by the ratio requirement of biopesticide compounded pesticides, Av crystalline solid and kuh-seng ground caustic, earlier with the Bt pulvis, Av crystalline solid and kuh-seng ground caustic are crushed to 320 orders with airslide disintegrating mill respectively, above-mentioned three is joined in the double worm mixer, add the lignin sulfonate emulsifier of compounded pesticides gross weight 2% and 961 powder bleeding agents of compounded pesticides gross weight 2～4% simultaneously, mixed 30～40 minutes, various compositions are mixed, add again and satisfy the precipitated calcium carbonate that compounded pesticides is tired and required Bt, continuation mixed 30～40 minutes at double worm mixer, above-mentioned composite powder was crushed to less than 300 purpose fine powders with airslide disintegrating mill to get final product at last.
Describedly satisfy compounded pesticides the Bt precipitated calcium carbonate that requires of tiring is meant: the weight * Y that adds the compounded pesticides gross weight * X=compounded pesticides raw material Bt behind the precipitated calcium carbonate; Wherein X is a compounded pesticides to tiring/milligram that Bt requires, and Y is tiring/milligram as the Bt of compounded pesticides raw material; Be weight=compounded pesticides gross weight-(weight of the weight+bleeding agent of the weight+emulsifier of weight+matrine of Av) of precipitated calcium carbonate.
Biopesticide compounded pesticides of the present invention is compared with each single agent biopesticide of its composition, have the following advantages: 1, improved insecticidal toxicity: in above-mentioned compound proportion scope, when indoor measurement, the composite dose of virulence to diamond-back moth is improved largely than single agent, and composite dose is 20-3700 times of the single agent virulence of Bt; Be the single agent virulence of Avermectin 1.75-70 doubly; Be matrine list agent virulence 251-7534 doubly.In the open air in the insecticidal test, the 7th day control efficiency of single Bt control diamond-back moth that 16000IU/mg tires is 75.3%, and the preventive effect of Bt 2000IU/mg+0.1% Avermectin+0.1% matrine is 84.8%, and the Bt dosage is than composite dose high 2.4 times, and effect but is lower than composite dose.
Composite dose of control diamond-back moth field control effectiveness test
| Pesticide name | Extension rate | Dosage (ml/ hectare) | Insect population radix (head/strain) before the medicine | Behind the medicine first day | Behind the medicine second day | Behind the medicine the 3rd day | |||
| Residual borer population (head/strain) | Proofread and correct preventive effect (%) | Residual borer population (head/strain) | Proofread and correct preventive effect (%) | Residual borer population (head/strain) | Proofread and correct preventive effect (%) | ||||
| Composite dose | ??8000 | ??93.75 | ??157 | ?118 | ??26.60 | ??106 | ??38.39 | ??70 | ?62.20b |
| ??4000 | ??187.5 | ??163 | ?107 | ??35.89 | ??68 | ??61.93 | ??44 | ?77.12a | |
| ??2000 | ??375 | ??156 | ?80 | ??49.92 | ??49 | ??71.34 | ??28 | ?84.78a | |
| ????Bt?16000IU/mg | ??830 | ??900 | ??175 | ?93 | ??48.10 | ??59 | ??69.23 | ??51 | ?75.30b |
| Blank | ??1 | ??167 | ?171 | ??183 | ??197 | ||||
2, widened insecticidal spectrum: this invention is to be main component with Bt, has added a small amount of Avermectin and matrine and is made into novel pesticide.The insecticidal spectrum of Bt mainly can kill lepidoptera pest, and insect such as wood louse in homoptera pest such as aphid, Diptera pest such as liriomyza bryoniae and the Anoplura also can be killed except that killing the lepidoptera pest in composite back; In addition former noctuidae pests cotton bollworm, beet armyworm, prodenia litura invalid or poor efficiency had good effect.Field test proves that it can be used for preventing and treating beet armyworm.
Composite dose of control beet armyworm field control effectiveness test
| Pesticide name | Extension rate | Dosage (ml/ hectare) | Insect population radix (head/strain) before the medicine | Behind the medicine first day | Behind the medicine second day | Behind the medicine the 3rd day | |||
| Residual borer population (head/strain) | Proofread and correct preventive effect (%) | Residual borer population (head/strain) | Proofread and correct preventive effect (%) | Residual borer population (head/strain) | Proofread and correct preventive effect (%) | ||||
| Composite dose | ??2000 | ??375 | ??5.23 | ??4.10 | ??24.56 | ??3.07 | ??47.78 | ??1.73 | ??65.8b |
| ??1000 | ??750 | ??4.80 | ??3.13 | ??37.20 | ??2.53 | ??51.32 | ??1.17 | ??74.8a | |
| ??500 | ??1500 | ??5.70 | ??2.63 | ??55.57 | ??2.37 | ??61.60 | ??0.93 | ??83.1a | |
| Rice is full | ??1000 | ??750 | ??5.60 | ??4.40 | ??24.34 | ??2.80 | ??53.82 | ??1.13 | ??79.1a |
| Blank | ??1 | ??0 | ??5.20 | ??5.40 | ??5.63 | ??5.03 | |||
3, reduced the toxicity of Avermectin to people, animal: compounded pesticides is little toxic agent, compares with the toxicity of 1.8% abamectin emulsifiable concentrate, and composite dose toxicity has only the 1.67-11% of Avermectin toxicity.
4, desinsection speed is faster: the cause death 48-72 of dead peak after dispenser hour of insect of Bt, composite dose of deadly peak is 30-48 hour.
5, reduced cost: produce the Bt pulvis that 16000IU/mg tires, cost needs 16000 yuan/ton, is re-dubbed the higher pulvis of toxic effect of tiring than 16000IU/mg, and cost only needs 11000 yuan/ton.
The detection method of synergistic effect is:
The assay method of tiring according to biopesticide, with Bt, matrine and Ah 's rhzomorph and complexing agent, use 3 diamond-back moths in age (under 25-26 ℃) for observing its borer population anyway behind the medicine in 48 hours respectively, calculate the lethality (%) under the various experimental concentration, and carry out linear regression analysis with fx-3600P type Casio calculator, the concentration of obtaining 50% diamond-back moth that causes death (is LC
50Value).Then with the LC of single agent
50Value defined is a toxic effect 100%.
Complexing agent is virulence multiple=single agent LC of single agent
50/ complexing agent LC
50
Will do in test the blank of not administration simultaneously, if lethality≤5% of blank diamond-back moth o'clock, the lethality of administration group is not done correction, if control group lethality＞5＜15% o'clock is then proofreaied and correct the lethality of administration group by following formula:
If control group lethality＞15% o'clock, test data is promptly invalid, need redeterminate.
Embodiment 1:
When Bt, Av and matrine are liquor, with 8000 tiring/the Bt liquor of microlitre, the Av finish of Bla content 2%, the matrine liquor of matrine content 1%, preparation Bt be 2000 tire/microlitre, the method that contains 1000 kilograms of biopesticide compounded pesticides suspending agents of 0.1%AV and 0.1% matrine be:
Get 250 kilograms of Bt liquors, 50 kilograms of Av liquors, 100 kilograms of matrine liquors, Bt, Av are added in the agitator tank with matrine, the water that adds 40 kilograms of TX-10 emulsifier, 40 kilogram of 961 bleeding agent and 520 kilograms again stirs with 100～200 rev/mins speed and to get final product in 1 hour.
Embodiment 2:
When Bt is a pulvis, when Av and matrine are liquor, with 50000 tiring/the Bt pulvis of milligram, the Av liquor of B1a content 2%, matrine content is 1% matrine liquor, preparation Bt be 500 tire/microlitre, the method that contains 1000 kilograms of biopesticide compounded pesticides suspending agents of 0.03%AV and 0.05% matrine be:
Get 10 kilograms in Bt pulvis, 15 kilograms of Av finishes, 50 kilograms of matrine liquors, earlier Bt is added in the agitator tank, add 100 kilograms water, stirred 1 hour with 100～200 rev/mins speed; Again Av is added in the agitator tank with matrine, add the water of 30 kilograms of newborn 0203 emulsifier of farming, 30 kilogram of 961 bleeding agent and 765 kilograms again, stir with 100～200 rev/mins speed and got final product in 1 hour.Embodiment 3:
When Bt is a pulvis, Av is a crystalline solid, when matrine is liquor, with 50000 tiring/the Bt pulvis of milligram, Bla content is 70% Av crystalline solid, matrine content is 1% matrine liquor, preparation Bt be 4000 tire/microlitre, the method that contains 1000 kilograms of biopesticide compounded pesticides suspending agents of 0.1%AV and 0.1% matrine be:
Get 80 kilograms in Bt pulvis, add in the agitator tank, pour 400 kilograms water into, stirred 1 hour with 100～200 rev/mins speed; In another container, add 1.5 kilograms of Av crystalline solid, with 98.5 kilograms of toluene solvants it being dissolved into Bla content is 1% AV mother liquor, the AV mother liquor is added in the agitator tank with 100 kilograms of matrine liquors, the water that adds 40 kilograms of newborn 0203 emulsifier of farming, 40 kilogram of 961 bleeding agent and 240 kilograms again stirs with 100～200 rev/mins speed and to get final product in 1 hour.
Embodiment 4:
With 50000 tiring/the Bt pulvis of milligram, the Av crystalline solid of Bla content 70%, the kuh-seng ground caustic of matrine content 1%, prepare Bt and be 8000 tire/milligram, the method that contains 0.2%AV and 1000 kilograms of biopesticide compounded pesticides of 0.2% matrine wetting powder be:
Earlier with the Bt pulvis, Av crystalline solid and kuh-seng ground caustic are crushed to 320 orders with airslide disintegrating mill respectively, get 160 kilograms in Bt pulvis after the pulverizing, 2.9 kilograms of Av crystal powders, 200 kilograms of kuh-seng ground caustics, above-mentioned three is joined in the double worm mixer, add 20 kilograms lignin sulfonate emulsifier and 40 kilograms 961 powder bleeding agents simultaneously, mixed 30～40 minutes, various compositions are mixed, add 577.1 kilograms of precipitated calcium carbonates again, continuation mixed in double worm mixer 30～40 minutes, above-mentioned composite powder was crushed to less than 300 purpose fine powders with airslide disintegrating mill to get final product at last.
Claims (11)
1, a kind of biopesticide compounded pesticides, it is characterized in that, the Main Ingredients and Appearance of this compounded pesticides is bacillus thuringiensis (Bt), Avermectin (Av) and matrine, and the proportioning of Bt, Av and matrine is (percentage by weight): 400～8000 tire/Bt of milligram accounts for 99.6～99.92, the Bla among the Av accounts for 0.03～0.2, matrine accounts for 0.05～0.2.
2, a kind of biopesticide compounded pesticides according to claim 1, it is characterized in that the better proportioning of Bt, Av and matrine is (percentage by weight): 2000～8000 tire/Bt of milligram accounts for 99.6～99.8, the Bla among the Av accounts for 0.1～0.2, matrine accounts for 0.1～0.2.
3, a kind of biopesticide compounded pesticides according to claim 1, it is characterized in that the best proportioning of Bt, Av and matrine is (percentage by weight): 4000～8000 tire/Bt of milligram accounts for 99.6～99.8, the Bla among the Av accounts for 0.1～0.2, matrine accounts for 0.1～0.2.
4, realize claim 1,2,3 described a kind of biopesticide compounded pesticides prepare the method for suspending agent, this method follows these steps to carry out: will ask for Bt by proportioning, Av and matrine, work as Bt, when Av and matrine are liquor, with Bt, Av adds in the agitator tank with matrine, the TX-10 or newborn 0203 emulsifier of farming that add compounded pesticides gross weight 2～6% again, azone class (as: 961) bleeding agent of compounded pesticides gross weight 2～6% and satisfy the water that compounded pesticides is tired and required Bt got final product with 100～200 rev/mins speed stirrings in 1 hour.
5, preparation method according to claim 4 is characterized in that, describedly satisfies compounded pesticides the Bt water that requires of tiring is meant: the weight * Y that adds the compounded pesticides gross weight * X=compounded pesticides raw material Bt behind the water; Wherein X is a compounded pesticides to tiring/microlitre that Bt requires, and Y is tiring/microlitre as the Bt of compounded pesticides raw material; Be weight=compounded pesticides gross weight-(weight of the weight+bleeding agent of the weight+emulsifier of weight+matrine of Av) of water.
6, realize that claim 1,2,3 described a kind of biopesticide compounded pesticides preparations are equipped with the method for suspending agent, this method follows these steps to carry out: will ask for Bt, Av and matrine by proportioning, when Bt is a pulvis, when Av and matrine are liquor, earlier Bt is added in the agitator tank, adding can make the water of Bt pulvis dissolving, stirs 1 hour with 100～200 rev/mins speed; Again Av and matrine are added in the agitator tank, add the azone class bleeding agent of the TX-10 of compounded pesticides gross weight 2～6% or farming newborn 0203 emulsifier, compounded pesticides gross weight 2～6% again and satisfy the water that compounded pesticides is tired and required Bt, got final product in 1 hour with 100～200 rev/mins speed stirrings.
7, preparation method according to claim 6 is characterized in that, describedly satisfies compounded pesticides the Bt water that requires of tiring is meant: the weight * Y that adds the compounded pesticides gross weight * X=compounded pesticides raw material Bt behind the water; Wherein X is a compounded pesticides to tiring/microlitre that Bt requires, and Y is tiring/milligram as the Bt of compounded pesticides raw material; Be weight=compounded pesticides gross weight-(weight of the weight of the weight+bleeding agent of the weight+emulsifier of weight+matrine of Av+dissolving Bt water) of water.
8, the preparation of realization claim 1,2,3 described a kind of biopesticide compounded pesticides is equipped with the method for suspending agent, this method follows these steps to carry out: will ask for Bt, Av and matrine by proportioning, when Bt is a pulvis, Av is a crystalline solid, when matrine is liquor, earlier Bt is added in the agitator tank, adding can make the water of Bt pulvis dissolving, stirs 1 hour with 100～200 rev/mins speed; In another container, it is 1～2% AV mother liquor that Av is become B1a content with a kind of dissolution with solvents in toluene, dimethylbenzene, acetone or the isopropyl alcohol, again the AV mother liquor is added in the agitator tank with matrine, add the azone class bleeding agent of the TX-10 of compounded pesticides gross weight 2～6% or newborn 0203 emulsifier of farming, compounded pesticides gross weight 2～6% and satisfy the water that compounded pesticides is tired and required Bt, got final product in 1 hour with 100～200 rev/mins speed stirrings.
9, preparation method according to claim 8 is characterized in that, describedly satisfies compounded pesticides the Bt water that requires of tiring is meant: the weight * Y that adds the compounded pesticides gross weight * X=compounded pesticides raw material Bt behind the water; Wherein X is a compounded pesticides to tiring/microlitre that Bt requires, and Y is tiring/milligram as the Bt of compounded pesticides raw material; Be weight=compounded pesticides gross weight-(weight of the weight of the weight+bleeding agent of the weight+emulsifier of weight+matrine of Av+dissolving Bt water) of water.
10, realize claim 1,2,3 described a kind of biopesticide compounded pesticides prepare the method for wetting powder, this method follows these steps to carry out: will ask for Bt by proportioning, Av and matrine, earlier with the Bt pulvis, Av crystalline solid and kuh-seng ground caustic are crushed to 320 orders with airslide disintegrating mill respectively, above-mentioned three is joined in the double worm mixer, add the lignin sulfonate emulsifier of compounded pesticides gross weight 2% and 961 powder bleeding agents of compounded pesticides gross weight 2～4% simultaneously, mixed 30～40 minutes, various compositions are mixed, add again and satisfy the precipitated calcium carbonate that compounded pesticides is tired and required Bt, continuation mixed in double worm mixer 30～40 minutes, above-mentioned composite powder was crushed to less than 300 purpose fine powders with airslide disintegrating mill to get final product at last.
11, preparation method according to claim 10 is characterized in that, describedly satisfies compounded pesticides the Bt precipitated calcium carbonate that requires of tiring is meant: the weight * Y that adds the compounded pesticides gross weight * X=compounded pesticides raw material Bt behind the precipitated calcium carbonate; Wherein X is a compounded pesticides to tiring/milligram that Bt requires, and Y is tiring/milligram as the Bt of compounded pesticides raw material; Be weight=compounded pesticides gross weight-(weight of the weight+bleeding agent of the weight+emulsifier of weight+matrine of Av) of precipitated calcium carbonate.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320857C (en) * | 2005-02-04 | 2007-06-13 | 李建中 | Pesticide composition containing methyl amino abamectin and bacillus thuringiensis |
| CN101919407A (en) * | 2010-07-21 | 2010-12-22 | 合肥工业大学 | Biological suspension pesticide prepared by compounding abamectin with bacillus thuringiensis |
| CN104996495A (en) * | 2014-08-07 | 2015-10-28 | 太仓市永发农场专业合作社 | Efficient biopesticide applied in controlling insect diseases for high-quality paddy rice and production method thereof |
| CN105165894A (en) * | 2015-10-23 | 2015-12-23 | 苏州科大微龙农业科技有限公司 | Insect-resisting protein sophocarpidine prevention and treatment agent for preventing and treating diaphania indica |
-
2002
- 2002-05-28 CN CN02115899A patent/CN1421139A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320857C (en) * | 2005-02-04 | 2007-06-13 | 李建中 | Pesticide composition containing methyl amino abamectin and bacillus thuringiensis |
| CN101919407A (en) * | 2010-07-21 | 2010-12-22 | 合肥工业大学 | Biological suspension pesticide prepared by compounding abamectin with bacillus thuringiensis |
| CN104996495A (en) * | 2014-08-07 | 2015-10-28 | 太仓市永发农场专业合作社 | Efficient biopesticide applied in controlling insect diseases for high-quality paddy rice and production method thereof |
| CN105165894A (en) * | 2015-10-23 | 2015-12-23 | 苏州科大微龙农业科技有限公司 | Insect-resisting protein sophocarpidine prevention and treatment agent for preventing and treating diaphania indica |
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