CN105010377A - Bactericidal composition comprising iprodione and chitosan - Google Patents
Bactericidal composition comprising iprodione and chitosan Download PDFInfo
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- CN105010377A CN105010377A CN201510402090.1A CN201510402090A CN105010377A CN 105010377 A CN105010377 A CN 105010377A CN 201510402090 A CN201510402090 A CN 201510402090A CN 105010377 A CN105010377 A CN 105010377A
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- iprodione
- chitosan
- bactericidal composition
- rot
- anthracnose
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Abstract
The invention discloses a bactericidal composition comprising iprodione and chitosan. The effective components are iprodione and chitosan in a ratio of 40: 1 to 1: 40 by mass. The sum of iprodione and chitosan by mass accounts for 0.05-90% of the bactericidal composition. The bactericidal composition disclosed by the invention is suitable for preventing and treating wheat powdery mildew, grey mould fruit rot of strawberry, citrus blue mold, citrus sour rot, potato early blight, potato late blight, watermelon anthracnose, banana crown rot, banana anthracnose and mango anthracnose disease. Compared to the single agent, the preventing and treating effect of the bactericidal composition is obviously improved, the dosage of the pesticides is reduced, the influence on the environment by the pesticides is reduced, the pesticide cost is lowered, generation of drug resistance of plant diseases can be alleviated or overcome, the service life of the agent is prolonged, and comprehensive treatment of diseases is facilitated.
Description
Technical field
The composition pesticide that the present invention relates to, be with iprodione and chitosan for active ingredient, be applicable to prevent and treat wheat powdery mildew, grey mould fruit rot of strawberry, Penicillium italicum, citric acid maize ear rot, target, potato late blight, watermelon anthrax, banana crown rot, banana anthracnose, mango anthracnose.
Background technology
Iprodione, english common name Iprodione, has another name called iprodione; be dicarboximide class broad-spectrum touch-out type protective fungicide, there is certain therapeutic action simultaneously, also play systemic action by root absorption; it gets final product sprouting and the generation of Antifungi spore, also can suppress mycelial growth.Iprodione fungicidal spectrum is comparatively wide, for preventing and treating the disease caused by sac fungi and imperfect fungus.There is good control efficiency to the disease occurred during banana, mango, orange storing, and can be fruit face light, improve the value of commodity.
Chitosan, english common name Chitosan is the water-soluble products that chitin generates after strong lye deacetylate, mainly through changing the 26S Proteasome Structure and Function of pathogen cell membrane, thus suppress the growth of pathogen, and there is the effect improving crop disease-resistant, immunity function; Chitosan has health care, the multiple use such as medical, agricultural can be used for cucumber downy mildew, powdery mildew, tomato late blight, virus disease, alternaria leaf spot of apple, crop pest such as oranges and tangerines (fruit) anthracnose, rice blast etc., has fungicidal spectrum widely.。
Found by test, iprodione and chitosan colletotrichum used in combination (Colletotrichum), Penicillium (Penicilium italicum), green mold belongs to (Peniciliumdigitatum), Geotrichum (Geotrichum), Alternaria (Alternaria), Pyricularia Sacc. (Phyricularia), Phytophthora (Phytophthora), Pseudoperonospora (Pseudoperonospora), Plasmopara (Plasmopara), Rhizoctonia (Rhizoctonia), Botrytis ((Botrytis), Fusarium (Fusarium), Fusicladium (Fusicladium), the fungal plant pathogens such as ring Fusicladium (Sphlocaea) and Erysiphaceae (Erysiphales) pathogen tool have synergistic function, especially in 20:1 ~ 1:20 proportion to colletotrichum (Colletotrichum), Penicillium (Penicilium italicum), Geotrichum (Geotrichum), Pyricularia Sacc. (Phyricularia), Phytophthora (Phytophthora), Alternaria (Alternaria), Fusarium (Fusarium) pathogen has obvious synergistic function.
Can excipient be the formulation agriculturally commonly used by certain technological means iprodione and chitosan composition.
Summary of the invention
The present invention aims to provide the synergetic pesticide composition that a kind of active ingredient is iprodione and chitosan, and the prevention and control for crop fungal disease provide a kind of effectively management tool.
The technical solution adopted in the present invention is: a kind of bactericidal composition containing iprodione and chitosan, active ingredient is iprodione and chitosan, the ratio of quality and the number of copies of iprodione salt and chitosan is 40:1 ~ 1:40, and iprodione and the percentage by weight of chitosan quality summation in bactericidal composition are 0.05%-90%.
Further, described bactericidal composition according to well known to a person skilled in the art method, can be mixed with the application forms of the applicable agricultural uses such as suspending agent, oil-suspending agent, water dispersible granules, wetting powder.
Described bactericidal composition is also containing the usual auxiliaries of preparation needed for pesticidal preparations, usual auxiliaries is the mixing of one or more in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc., be known substance, various auxiliary agents conventional in pesticidal preparations, can change to some extent according to different situations, be not particularly limited.
Bactericidal composition provided by the invention, is applicable to the crop pests such as control wheat powdery mildew, grey mould fruit rot of strawberry, Penicillium italicum, citric acid maize ear rot, target, potato late blight, watermelon anthrax, banana crown rot, banana anthracnose, mango anthracnose.
Bactericidal composition provided by the invention, usually adopts the method for spraying to use, also can adopt other operation techniques agriculturally applied as required.
Bactericidal composition provided by the invention has following beneficial effect:
1, bactericidal composition provided by the invention, shows obvious synergistic effect in certain ratio range, and the control efficiency of composition is significantly improved than single dose, reduces the using dosage of agricultural chemicals, decreases the impact of agricultural chemicals on environment, reduces drug cost.
2, the active ingredient mechanism of action of bactericidal composition provided by the invention is different, and the application of composition can delay or overcome the generation of disease drug resistance, extends the service life of medicament, is conducive to the comprehensive regulation of disease.
Embodiment
In order to understand essence of the present invention better, be described further by following examples, but the present invention is not limited to these embodiments.
According to the abundant method of Sun Yun, the synergy of pharmacy mix is evaluated according to co-toxicity coefficient (CTC), namely CTC≤80 are joint action of antagonism, and 80 < CTC < 120 are joint action of antagonism, and CTC >=120 are synergistic function.Actual measurement toxicity index (ATI)=(EC of standard agent
50the EC of/reagent agent
50) × 100; In the toxicity index × mixture of theoretical toxicity index TTI=A medicament the percentage composition+B medicament of A medicament toxicity index × mixture in the percentage composition of B medicament; Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100
Embodiment one: iprodione chitosan is to the Toxicity Determination of half-naked fusarium (Fusarium semitectum).
Subjects picks up from the wheat powdery mildew pathogen dlumeria graminis cereal specialized form F.semitectum mould (Fusarium semitectum) in field, pot experiment method.
Table 1, iprodione chitosan are to the Toxicity Determination result of half-naked fusarium (Fusarium semitectum).
As shown in Table 1, iprodione and chitosan mixture mass ratio are between 40:1 ~ 1:10, and have obvious synergistic effect to half-naked fusarium (Fusarium semitectum), co-toxicity coefficient is all more than 150.
Embodiment two: iprodione chitosan is to the Toxicity Determination of Penicillium notatum (Penicillium italicum).
Subjects is for picking up from citrusfruit penicilliosis pathogen Penicillium notatum (Penicilliumitalicum), mycelial growth method.
Table 2, iprodione chitosan are to the Toxicity Determination result of Penicillium notatum (Penicillium italicum).
As shown in Table 2, iprodione and chitosan mixture mass ratio are between 40:1 ~ 1:10, and have obvious synergistic effect to Penicillium notatum (Penicillium italicum), co-toxicity coefficient is all more than 150.
Embodiment three: iprodione chitosan is to the Toxicity Determination of Botrytis cinerea (Botrytis cinerea).
Subjects is the potato late blight pathogen Botrytis cinerea (Botrytiscinerea) of picking up from field, mycelial growth method.
Table 3, iprodione chitosan are to the Toxicity Determination result of Botrytis cinerea (Botrytis cinerea).
As shown in Table 3, iprodione and chitosan mixture mass ratio are between 40:1 ~ 1:10, and have obvious synergistic effect to Botrytis cinerea (Botrytis cinerea), co-toxicity coefficient is all more than 150.
Embodiment four: iprodione chitosan is to the Toxicity Determination of glue spore anthrax (Colletotrichumgloeosporioides).
Subjects is pick up from watermelon anthrax pathogen glue spore anthrax (Colletotrichumgloeosporioides) in field, mycelial growth method.
Table 4, iprodione chitosan are to the Toxicity Determination result of glue spore anthrax (Colletotrichum gloeosporioides).
As shown in Table 4, iprodione and chitosan mixture mass ratio are between 40:1 ~ 1:10, and have obvious synergistic effect to glue spore anthrax (Colletotrichum gloeosporioides), co-toxicity coefficient is all more than 140.
Below in conjunction with example of formulations to further instruction of the present invention.
Embodiment five: iprodione chitosan suspending agent.
Pulverized in advance in proportion by above-mentioned formula, then add in sand mill and grind, after high shear mixing, allotment obtains the iprodione chitosan suspending agent of corresponding percentage by weight.
Embodiment six: 30% iprodione chitosan suspending agent.
Iprodione 210 grams, chitosan 106 grams, 35 grams, lignosulfonates sodium, 31 grams, fatty acid ester sodium sulphate, to methoxyl group fatty acyl anilinesulfonic acid 5.1 grams, fatty alcohol-polyoxyethylene ether 5.1 grams, glycerine 5.2 grams, xanthans 1.1 grams, deionized water complements to 1000 grams, above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, after high shear mixing, allocate iprodione chitosan suspending agent processed, after testing, iprodione content 20.1%, chitosan content 10.1%, total effective content 40.2%.
Embodiment seven: for preventing and treating citrusfruit anthracnose.
The spraying of 100mg/kg thin up pressed by 40.2% iprodione chitosan suspending agent, after medicine, the preventive effect of 15 days, 30 days is 98.1%, 93.2%, 50% iprodione water dispersible granules presses 100mg/kg, 10% chitosan suspending agent by the spraying of 100mg/kg thin up, and after medicine, 15 days, 30 days preventive effects are respectively 72.2%, 61.4% and 86.6%, 78.3%.Iprodione and the composite rear synergistic effect of chitosan obviously, are better than single dose to the preventive effect successful of citrusfruit anthracnose, reduce use cost, for plantation family provides the more efficiently management tool of a kind of citrusfruit anthracnose.
Embodiment eight: for preventing and treating citrusfruit penicilliosis.
The spraying of 100mg/kg thin up pressed by 40.2% iprodione chitosan suspending agent, after medicine, the preventive effect of 7 days, 14 days is 95.6%, 88.8%, 50% iprodione water dispersible granules presses 100mg/kg, 10% chitosan suspending agent by the spraying of 100mg/kg thin up, and after medicine, 15 days, 30 days preventive effects are respectively 82.2%, 71.1% and 83.6%, 72.6%.Iprodione and the composite rear synergistic effect of chitosan obviously, are better than single dose to the preventive effect successful of citrusfruit penicilliosis, reduce use cost, for plantation family provides the more efficiently management tool of a kind of citrusfruit penicilliosis.
Embodiment nine: iprodione chitosan oil-suspending agent.
Above-mentioned material (except organobentonite) is joined in reactor mixer together, stir 2 hours, open pan feeding valve at the bottom of still, material is injected stage sand grinding machine to grind, fineness of materials 98% after grinding is by discharging after 1-5um, material puts into high-shear emulsifying still again together with the organobentonite dissolved in advance, namely can be made into the iprodione chitosan oil-suspending agent of the good corresponding percentage by weight of flowing to property after emulsification.
Embodiment ten: 30% iprodione chitosan oil-suspending agent.
Iprodione 258 grams, chitosan 54 grams, 45 grams, lignosulfonates sodium, fatty alcohol-polyoxyethylene ether 52 grams, methyl oleate 249 grams, organobentonite 83 grams, dodecyl sodium sulfonate calcium salt 60 grams, turpentine oil complements to 1000 grams, is pulverized in advance in proportion by above-mentioned formula, add in sand mill again and grind, the obtained iprodione chitosan oil-suspending agent of allotment after high shear mixing, after testing, iprodione effective content 25.1%, chitosan effective content 5.1%, total effective content 30.2%.
Embodiment 11: for preventing and treating citrusfruit sour rot.
30.2% iprodione chitosan oil-suspending agent presses the spraying of 100mg/kg thin up, after medicine, the preventive effect of 15 days, 30 days is 96.7%, 92.5%, 50% iprodione water dispersible granules presses 100mg/kg, 10% chitosan suspending agent by the spraying of 100mg/kg thin up, and after medicine, 15 days, 30 days preventive effects are respectively 80.1%, 74.3% and 85.5%, 77.6%.Iprodione and the composite rear synergistic effect of chitosan obviously, are better than single dose to the preventive effect successful of citrusfruit sour rot, reduce use cost, for plantation family provides the more efficiently management tool of a kind of citrusfruit sour rot.
Embodiment 12: for preventing and treating oily grey mould fruit rot of strawberry.
30.2% iprodione chitosan oil-suspending agent presses the spraying of 50g a.i./ha thin up, after medicine, the preventive effect of 7 days, 14 days is 84.1%, 80.1%, 50% iprodione water dispersible granules presses 50g a.i./ha, 10% chitosan suspending agent by the spraying of 50g a.i./ha thin up, and after medicine, 7 days, 14 days preventive effects are respectively 61.4%, 50.5% and 76.3%, 66.6%.Iprodione and the composite rear synergistic effect of chitosan obviously, are better than single dose to the preventive effect successful of grey mould fruit rot of strawberry, reduce use cost, for plantation family provides the more efficiently management tool of a kind of grey mould fruit rot of strawberry.
Embodiment 13: iprodione chitosan water dispersible granules.
Above-mentioned material is added in cone-type mixer together and mixes; pulverize by airslide disintegrating mill; material after pulverizing mixes through cone-type mixer again; mixed fineness of materials 98% is by 600 mesh standard sieves; add in kneader and be kneaded into plasticity material; finally this material is put into Squeezinggranulator extruder grain, after drying, screening, after granulation, namely obtain the iprodione chitosan water dispersible granules of corresponding percentage by weight.
Embodiment 14: 60% iprodione chitosan water dispersible granules.
Iprodione 459 grams, chitosan 152 grams, sodium lignin sulfonate 43 grams, 61 grams, polycarboxylic acids sodium, glucose 53 grams, 39 grams, the withered powder of tea, kaolin complements to 1000.By above-mentioned formula in proportion dry pulverization process, granulation, drying, screening make and obtain iprodione chitosan water dispersible granules, after testing, iprodione effective content 45.2%, chitosan effective content 15.1%, total effective content 60.3%.
Embodiment 15: for preventing and treating banana crown rot.
60.3% iprodione chitosan water dispersible granules presses the spraying of 100mg/kg thin up, after medicine, the preventive effect of 7 days, 14 days is 96.6%, 88.2%, 50% iprodione water dispersible granules presses 100mg/kg, 10% chitosan suspending agent by the spraying of 100mg/kg thin up, and after medicine, 7 days, 14 days preventive effects are respectively 80.1%, 77.2% and 85.1%, 76.6%.Iprodione and the composite rear synergistic effect of chitosan obviously, are better than single dose to the preventive effect successful of banana crown rot, reduce use cost, for plantation family provides the more efficiently management tool of a kind of banana crown rot.
Embodiment 16: for preventing and treating banana anthracnose.
60.2% iprodione chitosan water dispersible granules presses the spraying of 100mg/kg thin up, after medicine, the preventive effect of 7 days, 14 days is 93.3%, 87.4%, 50% iprodione water dispersible granules presses 100mg/kg, 10% chitosan suspending agent by the spraying of 100mg/kg thin up, and after medicine, 7 days, 14 days preventive effects are respectively 72.6%, 65.5% and 77.3%, 67.2%.Iprodione and the composite rear synergistic effect of chitosan obviously, are better than single dose to the preventive effect successful of banana anthracnose, reduce use cost, for plantation family provides the more efficiently management tool of a kind of banana anthracnose.
Embodiment 17: iprodione chitosan wetting powder.
Above-mentioned material is added in cone-type mixer together and mixes, pulverize by airslide disintegrating mill, material after pulverizing is again through cone-type mixer mixing, and mixed fineness of materials 98%, by 600 mesh standard sieves, obtains the iprodione chitosan wetting powder of corresponding percentage by weight.
Embodiment 18: 50% iprodione chitosan wetting powder.
Iprodione 415 grams, chitosan 112 grams, lignosulfonates calcium 51 grams, lauryl sodium sulfate 44 grams, sodium butylnaphthalenesulfonate 52 grams, white carbon 55 grams, kaolin complements to 1000 grams.Mix entering in blender after above-mentioned formula in proportion coarse crushing, more namely obtain iprodione chitosan wetting powder after air-flow crushing, after testing, iprodione effective content 40.1%, chitosan effective content 10.2%, total effective content 50.3%.
Embodiment 19: view and admire target for control.
The spraying of 50g a.i./ha thin up pressed by 50.3% iprodione chitosan wetting powder, after medicine, the preventive effect of 7 days, 14 days is 85.3%, 75.6%, 50% iprodione water dispersible granules presses 50g a.i./ha, 10% chitosan suspending agent by the spraying of 50g a.i./ha thin up, and after medicine, 7 days, 14 days preventive effects are respectively 66.2%, 56.2% and 76.2%, 66.7%.Iprodione and the composite rear synergistic effect of chitosan obviously, are better than single dose to the preventive effect successful of target, reduce use cost, for plantation family provides the more efficiently management tool of a kind of target.
Embodiment 20: for biocontrol of mango Fruit Anthracnose.
The spraying of 100mg/kg thin up pressed by 50.3% iprodione chitosan wetting powder, after medicine, the preventive effect of 7 days, 14 days is 95.5%, 87.4%, 50% iprodione water dispersible granules presses 100mg/kg, 10% chitosan suspending agent by the spraying of 100mg/kg thin up, and after medicine, 7 days, 14 days preventive effects are respectively 80.2%, 74.2% and 83.8%, 78.3%.Iprodione and the composite rear synergistic effect of chitosan obviously, are better than single dose to the preventive effect successful of Mango Fruit anthracnose, reduce use cost, for plantation family provides the more efficiently management tool of a kind of Mango Fruit anthracnose.
Claims (3)
1. one kind contains the bactericidal composition of iprodione and chitosan, it is characterized in that: active ingredient is iprodione and chitosan, the ratio of quality and the number of copies of iprodione and chitosan is 40:1 ~ 1:40, and iprodione and the percentage by weight of chitosan quality summation in bactericidal composition are 0.05%-90%.
2. contain a bactericidal composition for iprodione and chitosan, it is characterized in that: the formulation of described bactericidal composition is the one in suspending agent, oil-suspending agent, water dispersible granules, wetting powder.
3. a kind of bactericidal composition containing iprodione and chitosan according to claim 1 is preventing and treating the application in wheat powdery mildew, grey mould fruit rot of strawberry, Penicillium italicum, citric acid maize ear rot, target, potato late blight, watermelon anthrax, banana crown rot, banana anthracnose, mango anthracnose.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553119A (en) * | 2006-12-12 | 2009-10-07 | 拜尔农科股份有限公司 | Pesticidal composition comprising a synthetic compound useful as nodulation agent of leguminous plants and an insecticide compound |
| CN101816305A (en) * | 2010-05-09 | 2010-09-01 | 海南正业中农高科股份有限公司 | Bactericide pesticide composite containing oligochitosan |
| CN104839226A (en) * | 2015-03-04 | 2015-08-19 | 山东科大创业生物有限公司 | Combined nematicide |
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- 2015-07-08 CN CN201510402090.1A patent/CN105010377A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553119A (en) * | 2006-12-12 | 2009-10-07 | 拜尔农科股份有限公司 | Pesticidal composition comprising a synthetic compound useful as nodulation agent of leguminous plants and an insecticide compound |
| CN101816305A (en) * | 2010-05-09 | 2010-09-01 | 海南正业中农高科股份有限公司 | Bactericide pesticide composite containing oligochitosan |
| CN104839226A (en) * | 2015-03-04 | 2015-08-19 | 山东科大创业生物有限公司 | Combined nematicide |
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Application publication date: 20151104 |