CN103053562B - Bactericidal composition of boscalid and mancozeb - Google Patents
Bactericidal composition of boscalid and mancozeb Download PDFInfo
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- CN103053562B CN103053562B CN201310003459.2A CN201310003459A CN103053562B CN 103053562 B CN103053562 B CN 103053562B CN 201310003459 A CN201310003459 A CN 201310003459A CN 103053562 B CN103053562 B CN 103053562B
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Abstract
The invention discloses a bactericidal composition of boscalid and mancozeb. The effective component of the bactericidal composition is composed of boscalid and mancozeb with a mass part ratio of 1:3-5:1. The bactericidal composition provided by the invention is suitable to be used for controlling vegetable gray mold. The bactericidal composition provided by the invention has a substantial synergetic effect, and assists in reducing pesticide dose. When the bactericidal composition is popularized, great economic and social effects are provided.
Description
Technical field
The present invention relates to field of pesticide preparation, being specifically related to Boscalid and mancozeb bactericidal composition, for preventing and treating eliminating vegetable botrytis.
Background technology
Eliminating vegetable botrytis is a kind of important and disease of common generation in growing vegetables process; it is the common and a kind of fungal disease of more difficult control of open country, protecting field crop; belong to low temperature and high relative humidity type disease; growth of pathogenic bacteria temperature is 2 ~ 30 DEG C, temperature 20 ~ 25 DEG C, humidity continue more than 90% time be the disease high-incidence season.Gray mold, caused by the pathogen of Botrytis cinerea infects, belongs to fungal disease, and flower, really, leaf, stem all can fall ill.Fruit is caught an illness, Chinese olive is injured heavily, and residual column cap or the many elder generations of petal are infected, backward fruit expansion, pericarp is caused to be canescence, and having the mould layer of thick grey, the rotten shape in water, blade morbidity is from blade tip, along between vein, become " V " shape inwardly to expand, taupe, while the line shape line having the depth alternate, sick key has a common boundary clearly demarcated.This disease is a kind of typical aeroborne disease, can propagate with air, current and farming operation.In actual disease control process, be difficult to adopt an effective measure and thoroughly cut off source of infection; When pathogen invades, be also difficult to utterly destroy pathogen.
Boscalid, English name Cantus, belongs to Novel tobacco acid amide fungicides, is mainly used in preventing and treating powdery mildew, gray mold, various rot, brown rot and root rot etc.Boscalid belongs to succinic acid ubiquinone reductase inhibitor in mitochondrial respiratory chain, has very strong rejection ability to the sprouting of spore, and with other bactericide without cross resistance.Shifted in plant by blade face infiltration, suppress mitochondrial succinate acid esters dehydrase, hinder tricarbonic acid cycle, make amino acid, sugar lacks, energy reduces, the division of interference cell and growth, has protection and therapeutic action.
Mancozeb is a kind of excellent protective fungicide, belongs to low-toxin farm chemicals.Because its bactericidal range extensively, not easily produces resistance, control efficiency is obviously better than other same series bactericidal agents, so consumption is large tonnage product in the world always.Current domestic most composite bactericide is all formulated with mancozeb processing, and manganese, zinc microelement have significantly short strong, production-increasing function to crop.
The mixture of different pesticide species is the common methods of preventing and treating agriculture resistance disease.Screened by formulation of pesticide, filter out rational formula, can effectively improve actual control efficiency, reduce dosage, reducing costs, delay the generation of disease drug resistance, is the important means of the disease comprehensive regulation.Boscalid and mancozeb mixture have obvious synergistic effect.
Boscalid and mancozeb mixture there is no relevant report at present for preventing and treating eliminating vegetable botrytis.
Summary of the invention
The object of the invention is Boscalids different for the mechanism of action and mancozeb to carry out composite, providing a kind of composition pesticide of efficient, low toxicity, low-residual, for preventing and treating eliminating vegetable botrytis.
Technical scheme of the present invention: with Boscalid and mancozeb for active ingredient, Boscalid and mancozeb ratio of quality and the number of copies is in the composition 1:3 ~ 5:1, all the other are allow in agricultural chemicals to use and acceptable auxiliary element.
Bactericidal composition of the present invention can adopt known method to be prepared into wetting powder, water dispersible granules.
The auxiliary agent used in the present composition comprise surfactant, dispersant, filler, filler etc. and other to be of value to active ingredient stable and play the known substance of drug effect in the formulation, all various compositions that are conventional in pesticidal preparations or permission use, be not particularly limited, concrete composition and consumption are determined by simple test according to recipe requirements.
Product described in the invention can the form of finished product preparation provide, and namely in composition, each material mixes, and the composition of composition also can the form of single dose provide, and directly mixes in tank or bucket, be then diluted to required concentration before using.The frequency of administration of the present composition and amount of application change with weather condition and crop condition change, can by the object using suitable formulation to reach control.
Beneficial effect of the present invention is: 1, two kinds of active ingredient is composite has obvious synergistic effect, improves control efficiency; 2, two kinds of active ingredients are composite, there is not cross resistance in mechanism of action uniqueness, reduces Pesticide use amount, thus reduce cost and decrease the pollution to environment, be conducive to the resistance management of disease, it is applied has larger economic benefit and social benefit.
Technology origin of the present invention: for understanding the composite synergy type to Botrytis cinerea of the composition such as Boscalid and mancozeb further, present inventor has performed a large amount of Toxicity Determination experimental studies, being specifically summarized as follows.
Test method: former for Boscalid medicine and the former medicinal acetone solution of mancozeb are mixed with required test medicine.Under aseptic technique, according to test process, the sterilising medium melted in advance is quantitatively added in aseptic conical flask, quantitatively add the liquid of each mixed ratio successively, add respectively in above-mentioned conical flask, fully shake up.Then equivalent pours 4 diameters into is in the culture dish of 9cm, and the pastille making respective concentration is dull and stereotyped.The colony edge cut-off footpath of cultivating 5d from oat medium is the bacterium cake of 5mm, is inoculated in above-mentioned pastille respectively dull and stereotyped, and test is established and do not made blank containing the process of medicament, often processes 4 times and repeats.Cultivate 5 days under 26 DEG C of dark conditions, measure colony diameter, calculate the inhibiting rate (%) of each drug concentrations to mycelial growth.
Calculate the toxicity index of each medicament and the co-toxicity coefficient (CTC value) of mixture according to the abundant method of Sun Yun, when CTC≤80 are antagonism, 80 ﹤ CTC ﹤ 120 are summation action, and CTC >=120 are synergistic effect.
Result of the test is with reference to table 1.As can be seen from the test results, Boscalid and the composite mass ratio of mancozeb, between 1:3 ~ 5:1, all have very strong inhibitory action to Botrytis cinerea colony growth, effectively can suppress the expansion of bacterium colony.
Table 1, Toxicity Determination result of the test to Botrytis cinerea.
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.In these embodiments, unless otherwise indicated, all percentage is mass percent.
embodiment 1: 60% Boscalid mancozeb wettable powder.
Boscalid 30%, mancozeb 30%, lauryl sodium sulfate (surfactant) 2.5%, white carbon (filler) 4%, sodium lignin sulfonate (dispersant) 5.5%, bentonite (filler) complements to 100%.Mix entering in blender after above-mentioned formula in proportion coarse crushing, more namely obtain 60% Boscalid mancozeb wettable powder after air-flow crushing.
Adopt above-mentioned 60% Boscalid mancozeb wettable powder control a variety of Chinese cabbage gray mold, be watered in their early stage and be diluted to 800 times of liquid even spraying, after medicine, 3d preventive effect is 87.5%.With 80% mancozeb wettable powder, 600 times of liquid, 50% Boscalid water dispersible granules, 500 times of liquid for contrast medicament, adopt same method dispenser, after medicine, 3d preventive effect is respectively 76.2%, 82.7%.Test shows that 60% Boscalid mancozeb wettable powder has good control efficiency to a variety of Chinese cabbage gray mold, is better than contrasting single dose.
embodiment 2: 70% Boscalid mancozeb water dispersible granule.
Boscalid 20%, mancozeb 50%, dodecyl sodium sulfonate calcium 7%(wetting agent), lignosulfonates (dispersant) 4%, urea (disintegrant) 2%, polyethylene glycol (binding agent) 3%, gum Arabic (stabilizing agent) 3%, kaolin complements to 100%.By above-mentioned formula dry pulverization process, granulation, drying, screening i.e. obtained 70% Boscalid mancozeb water dispersible granule in proportion.
Adopt above-mentioned 70% Boscalid mancozeb water dispersible granule control gray mold of cucumber, be watered in their early stage and be diluted to 1000 times of liquid even spraying, after medicine, 3d preventive effect is 90.7%.With 80% mancozeb wettable powder, 600 times of liquid, 50% Boscalid water dispersible granules, 500 times of liquid for contrast medicament, adopt same method dispenser, after medicine, 3d preventive effect is respectively 72.4%, 86.8%.Test shows that 70% Boscalid mancozeb water dispersible granule has good control efficiency to gray mold of cucumber, is better than contrasting single dose.
More than comprehensive, Boscalid of the present invention and mancozeb bactericidal composition obvious to eliminating vegetable botrytis synergistic effect, having good control efficiency, is that one is worth of widely use pesticide species.
Claims (2)
1. Boscalid and a mancozeb bactericidal composition, is characterized in that percentage by weight: Boscalid 30%, mancozeb 30%, lauryl sodium sulfate 2.5%, white carbon 4%, sodium lignin sulfonate 5.5%, bentonite complements to 100%, and described bactericidal composition is wetting powder.
2. Boscalid according to claim 1 and the application of mancozeb bactericidal composition in control eliminating vegetable botrytis.
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| CN201310003459.2A CN103053562B (en) | 2013-01-06 | 2013-01-06 | Bactericidal composition of boscalid and mancozeb |
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| CN201310003459.2A CN103053562B (en) | 2013-01-06 | 2013-01-06 | Bactericidal composition of boscalid and mancozeb |
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| CN103053562B true CN103053562B (en) | 2014-12-31 |
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| CN103348991A (en) * | 2013-07-15 | 2013-10-16 | 江苏龙灯化学有限公司 | Fungicide composition containing boscalid and mancozeb |
| CN104396958B (en) * | 2014-10-28 | 2016-06-08 | 江苏邦盛生物科技有限责任公司 | A kind of sustained release dosage for preventing and treating gray mold of cucumber |
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| CN101755797A (en) * | 2009-11-23 | 2010-06-30 | 陈章艳 | Bactericide composition containing boscalid |
| WO2012082370A2 (en) * | 2010-12-16 | 2012-06-21 | Dow Agrosciences Llc | Synergistic fungicidal interactions of 5-fluorocytosine and other fungicides |
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Effective date of registration: 20190709 Address after: 226100 No. 102, Group 9, Banqiao Village, Zhengyu Town, Haimen City, Nantong City, Jiangsu Province Patentee after: Haimen Textile Co., Ltd. Zhuo Wei Address before: 516000 Zhongkai hi tech Development Zone 24, Huizhou, Guangdong Patentee before: Guangdong Zhongxun Agricultural Technology Co., Ltd. |
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