CN101690490B - Bactericidal composition compounded by bromothalonil and methoxy acrylic acid esters - Google Patents
Bactericidal composition compounded by bromothalonil and methoxy acrylic acid esters Download PDFInfo
- Publication number
- CN101690490B CN101690490B CN2009102065531A CN200910206553A CN101690490B CN 101690490 B CN101690490 B CN 101690490B CN 2009102065531 A CN2009102065531 A CN 2009102065531A CN 200910206553 A CN200910206553 A CN 200910206553A CN 101690490 B CN101690490 B CN 101690490B
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- Prior art keywords
- bromothalonil
- composition
- anthracnose
- bactericidal
- agent
- Prior art date
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Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a bactericidal composition compounded by bromothalonil and methoxy acrylic acid esters, which is characterized in that: active components of the bactericidal composition are the bromothalonil (A) and one of strobilurin fungicides (B); the ratio of the weight percentage of the A to the B is 1:80-80:1; and a synergizing agent salicylhydroxamie acid (SHAM) is used in the composition. The active components account for 1 to 90 weight percent of the composition; and the synergizing agent salicylhydroxamie acid (SHAM) accounts for 1 to 50 weight percent of the composition. The composition has novel components, scientific compatibility and obvious synergism, solves the problem that the single bactericide has single action mode and high consumption and is easy to generate resistance, has the characteristics of high efficiency, low toxicity, environmental protection, and no risk of teratogenesis, carcinogenesis or mutagenesis, accords with the development direction of bactericides, can be widely applied to prevention and control of anthracnose, downy mildew and powdery mildew of vegetables and fruit trees, Mycosphaerella black rot, fusarium wilt, anthracnose, powdery mildew and downy mildew of melons, and plagues, and particularly has high effect on the anthracnose of various crops.
Description
Technical field
The present invention relates to composite bactericidal composition of a kind of bromothalonil and methoxy acrylic bactericide and application thereof; Particularly a kind of with bromothalonil as a kind of bactericidal composition and application thereof in first active component and kresoxim-methyl, Fluoxastrobin, Enestroburin, pyraclostrobin, oxime bacterium ester, the SSF 126 as second active component; And synergetic effect additive bigcatkin willow oxime acid (SHAM) use in above composition, belong to the agriculture chemical compounding technical field.
Background technology
Anthracnose (anthracnose) pilosity is born in the warm moist area, infects multiple draft and woody plant, is often to send out one of multiple emphasis disease on vegetables, fruit tree, the forest in recent years.In agricultural production; Vegetables, fruit tree anthracnose are mainly caused by the fungi in Deuteromycotina (Deuteromycotina) Colletotrichum, the long spore genus of dish, the colletotrichum (Colletotrichum); Obtain subcutaneous ulcer bacterium (Col-letotrichumdematium (Pers.) Grove), glue spore thorn dish spore (Colletotrichumgloeosporioides (Penz) Sace) like spore shape thorn dish spore bacterium (Colletotrichumgleosporioides Penz.), melon thorn dish spore (Colletotrichum lagenarium), black line, due to the sharp spore anthrax-bacilus (ColletotrichumacutatumSim-monds).Anthracnose is because of different plants, and its pathogen is different, can cause a large amount of underproduction, fruit-vegetable quality to descend, even total crop failure.Germ survives the winter in residual body of host or soil with mycelium, conidium or aceravlus, and Lao Ye is morbidity at the beginning of 4 months, and 5 develop rapidly between June, and young leaves is then fallen ill since August.How propagation such as conidium leans on wind and rain, water infect from the wound.Plant overstocked, improper ventilation, leaf intersect each other be prone to susceptible.Germ growth thermophilic is 26 ℃ to 28 ℃, and the generation of conidium optimum temperature is 28 ℃ to 30 ℃, and the appropriate pH value is 5 to 6.High humidity, sick portion be moistening, water droplet or moisture film are arranged is that pathogen produces a large amount of conidial essential condition, and cloudy weather for several days running morbidity in season is heavier.Influenced by snow disaster, once caused a large amount of oranges and tangerines gardens such as North Guangdong, west of Guangdong Province Yuexi to ruin the garden in 08 year, cause heavy losses for local orchard worker, and have in the whole nation and to increase the weight of trend year by year, is the especially oranges and tangerines heavy difficult point disease of producing of agricultural production.At present, preventing and treating this sick main flow medicament is Prochloraz, thiophanate-methyl, carbendazim etc., but owing to use for many years, its resistance is quite serious, and using dosage is near this compounds maximum.Simultaneously, the thiophanate-methyl of benzimidazole, carbendazim have higher teratogenesis, carcinogenic and embryotoxicity, and high dose uses and is unfavorable for health environment-friendly.
Bromothalonil (English common name: bromothalonil, chemical molecular formula C
6H
6Br
2N
2Have another name called tektamer); Be the bactericide of a kind of wide spectrum, efficient, low toxicity, can suppress and root out fungi, bacterium, algae grows, the crops multiple diseases is had the better prevention effect; Especially anthracnose there is special efficacy; To crop safety, be applicable to various crop such as fruit tree, grape, vegetables, cotton, peanut, watermelon, tobacco, tea tree, flowers, prevent and treat multiple fungoid, bacterial diseases such as anthracnose, scab, shot hole, powdery mildew, rust, damping off, damping off, root stem rot, canker, bacterial wilt, angular leaf spot.Have unique protection, interior suction treatment and root out function, effect is remarkable, and the lasting period is long.This compound can be absorbed by somatic cells rapidly, and in somatic cells, conducts, and disturbs the normal development of somatic cells, thereby reaches antibacterial, bactericidal action.And can stimulate the activity of making plurality of enzymes in the object, and increase photosynthesis, improve crop yield.Application mode is flexible, and foliar spray, seed treatment and soil are irritated root, all show preventive effect preferably.Also be applicable to the algae removal that lake environment is handled, improve fishing pool water quality; Textile, leather etc. are anticorrosion, gas defence etc.
Methoxy acrylic bactericide mainly contains at present:
Kresoxim-methyl, Chinese common name have another name called emerald green shellfish (English general kresoximmethyl by name, BAS490F, molecular formula C
18H
19NO
4), be a kind of high-effective broad-spectrum fungicide, have excellent protection and therapeutic action.Its toxicity is low, no embryotoxicity and teratogenesis, and the residence time is short, can degrade rapidly in crop surface, to environment and crop safety, be a kind of excellent bactericide that is widely used in preventing and treating multiple fungal diseases such as fruit tree, vegetables, land for growing field crops.
Fluoxastrobin, Chinese common name have another name called the Amici and reach or pacify go out (English common name azoxystrobin, Amistar, molecular formula C
22H
17N
3O
5), be the first methoxy acrylate series bactericidal agent of Syngenta Co.,Ltd's exploitation.The generation of Fluoxastrobin ability strong inhibition mycelial growth, spore germination and spore; Have protection, treat, root out, characteristic such as interior suction and horizontal transporting; Its bactericidal activity is high, wide, the interior absorption of fungicidal spectrum is strong, to crop and Environmental security, can be widely used in the especially control of economic crops disease of various crop.
Enestroburin (English common name: enostroburin, molecular formula: C
22H
27ClNO
4), be a kind of fungicidal spectrum wide, active high, toxicity is low, with the good bactericide of Environmental compatibility, have prevention and therapeutic action, the plurality of plant diseases that is caused by mastigomycetes, sac fungi, basidiomycetes and imperfect fungus is had good control efficiency.
Alkene oxime amine (molecular formula: C
21H
21C
12N
3O
4), have the broad-spectrum sterilization activity, the most plants fungal disease all there is the better prevention effect.Its mechanism of action is through stoping the electronics transmission between cytochrome b and the c1 to suppress mitochondrial respiration, can preventing and treating the disease that other bactericide is produced resistance effectively.
Pyraclostrobin is (English general: pyraclostrobin; Chemical name: methyl (N)-[[[1-(4-chlorobenzene) pyrazoles-3 base)-oxygen]-the 0-methoxyl group]-the N-methoxymethyl carbamate), be a kind of efficient, wide spectrum, environment amenable bactericide; Its antifungal mechanism is to act on cytochrome b cl compound in the fungi mitochondrial respiratory chain; Stop the electronics transmission, do not have cross resistance, can effectively prevent, control, treat the multiclass fungal disease of various crop with most bactericide.
ZJ0712 (chemical molecular formula C
20H
22O
4), be a kind of broad-spectrum germicide, multiple fungal diseases such as powdery mildew, anthracnose are had very high activity; Have excellent protection, treatment and osmosis, and resistance of rainwater washing against, the lasting period is long; Belong to low toxicity, low-residual bactericide; No teratogenesis carcinogenesis, and can obviously promote the growth of crop, improve agricultural output and quality.
Oxime bacterium ester (English common name: trifloxystrobin, molecular formula: C
20H
19F
3N
2O
4Chemical name: methyl (E)-methoxyl group imido grpup-(E)-and α-[1-(α, α-three fluoro-m-tolyl)-ethyleneimino oxygen base]-o-tolyl } ethyl acetate), for the methoxy acrylate class is efficient, broad-spectrum germicide; Have excellent protection and treatment function; Environmentally friendly, no teratogenesis carcinogenic risk has excellent control efficiency to the fungal disease of various crop.
SSF 126 (molecular formula: C
16H
16N
2O
3) be a kind of broad-spectrum germicide, belong to methoxy acrylate compound, have infiltration and systemic activity, plurality of plant diseases is had treatment and roots out function.
Methoxy acrylic bactericide has efficiently, the characteristics of low toxicity, low-residual.With the kresoxim-methyl is example, shows according to the research of the Chinese Academy of Sciences, Ecological Environmental Research Center: (active ingredient 300g/hm when spraying medicine concentration is the twice of common dose
2), the half life period of kresoxim-methyl in cucumber and soil is respectively 6.4d and 10.3d.In active ingredient is 150 and 300g/hm
2The dosage condition under, dispenser 3-4 time, after the dispenser in the 5d cucumber kresoxim-methyl residual quantity be lower than the MRL value (0.05mg/kg) of European Union regulation.Simultaneously, chemical industry institute research shows through Shenyang, and 95% kresoxim-methyl does not have embryotoxicity and teratogenesis 50,200, under the 800mg/kg b.w.d treatment dosage to rat.New and effective bactericide for real low toxicity, low-residual, no teratogenesis.Its mechanism of action stops CYB cl to shift to the electronics of cromoci for passing through, thereby suppresses mitochondrial breathing, is a kind of mitochondrial respiratory inhibitor.Can be applicable to melon, Solanaceae, oranges and tangerines, lichee, lawn etc. and prevent and treat plurality of plant diseases such as anthracnose, downy mildew, eqpidemic disease, fusarium wilt, climing rot.
The present invention aims to provide a kind of low toxicity, low-residual, has the bactericidal composition of synergistic effect, slows down the noval chemical compound resistance and produces speed, ensures the increasing both production and income of crops such as vegetables, fruit.
Summary of the invention
One of the object of the invention is to provide a kind of bactericidal effect good, and action site is many, the bactericidal composition of low toxicity, low-residual.
Another object of the present invention is to provide the purposes of above-mentioned composition, especially the purposes in all kinds of anthracnose of crop of control.
Technical scheme of the present invention is to solve like this:
The bactericidal composition that a kind of bromothalonil and methoxy acrylic bactericide are composite, its characteristic comprises:
A) first active component is a bromothalonil;
B) second active component is a kind of in methoxy acrylic bactericide such as kresoxim-methyl, Fluoxastrobin, Enestroburin, alkene oxime amine, pyraclostrobin, ZJ0712, oxime bacterium ester, the SSF 126;
C) be synergetic effect additive with bigcatkin willow oxime acid (SHAM), its mass percent is 1%～50%; The weight ratio of first active component and second active component is 1: 80～80: 1, is preferably 1: 50～50: 1, most preferably is 1: 10～10: 1.The active component total weight percent is 1%～90% in the composition.
The formulation that the present composition can be prepared according to the known method of those skilled in the art of the present technique is water dispersible granules, suspending agent, missible oil, microemulsion, aqueous emulsion or wetting powder.
For water dispersible granules, one or more in spendable dispersant such as polycarboxylate, lignosulfonates, NNO4, the alkylnaphthalene sulfonate; In wetting agent such as NPE, polyoxyethylene alcohol, alkyl sulfate, alkylsulfonate, the naphthalene sulfonate one or more; In disintegrant such as ammonium sulfate, urea, sucrose, the glucose one or more; In binding agent such as diatomite, corn starch, PVA, the carboxymethyl (ethyl cellulose) one or more; Filler soil is like in diatomite, calcium bicarbonate, kaolin, white carbon, talcum powder, the potter's clay one or more.
For suspending agent, one or more in spendable dispersant such as polycarboxylate, lignosulfonates such as sodium lignin sulfonate, the alkylnaphthalene sulfonate; Among emulsifier such as Nongru-700 # (common name alkyl phenol formaldehyde resin polyoxyethylene ether), nekal formaldehyde condensation products, agricultural newborn 2201#, this dish-60# (common name sorbitol anhydride monostearate), agricultural newborn 1601# (common name triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), the TERSPERSE 4894 (2500) one or more; In wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products phosphate, the withered powder of tea, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, the naphthalene sulfonate one or more; In thickener such as xanthans, polyvinyl alcohol, the bentonite one or more; In preservative such as formaldehyde, benzoic acid, the Sodium Benzoate one or more; Antifoaming agent such as organic silicon defoamer; In antifreezing agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts such as the sodium chloride one or more.
For wetting powder, in spendable dispersant such as polycarboxylate, lignosulfonates, the alkylnaphthalene sulfonate one or more; In wetting agent such as alkyl sulfate, alkylsulfonate, the naphthalene sulfonate one or more; In filler such as ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, the potter's clay one or more.
For missible oil, one or more in spendable solvent such as ethylene glycol, methyl alcohol, xylol, acetone, chloroform, ethyl acetate, the ether; In the newborn 500# of spendable emulsifier such as farming, agricultural newborn 600#, Nongru-700 #, agricultural newborn 2201#, agricultural newborn 1601#, polyoxyethylene fatty acid ester, polyoxyethylene groups ether, polyoxyethylene fatty acid ammonia, the N-Methyl pyrrolidone one or more; In available stabilizing agent such as triphenyl phosphite, the epoxychloropropane one or more.
For aqueous emulsion, in spendable emulsifier such as NPE phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl glycol ether sodium sulfonate, triphen ethyl-phenol polyoxyethylene ether phosphate, agricultural newborn 2201#, Nongru-700 # (common name alkyl phenol formaldehyde resin polyoxyethylene ether), agricultural newborn 1601# (common name triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), agricultural newborn 600#, agricultural newborn 400#, the sorbitan fatty acid polyoxyethylene groups ether one or more; In solvent such as xylol, carrene, toluene, N-Methyl pyrrolidone, cyclohexanone, acetone, the castor oil one or more, one or more in stabilizing agent such as sodium hydrogen phosphate, this fat of tricresyl phosphite, epoxychloropropane, the aceticanhydride; Antifreezing agent such as methyl alcohol, ethylene glycol, propane diols, glycerine, in one or more; In thickener such as xanthans, polyvinyl alcohol, bentonite, the aluminium-magnesium silicate one or more; In preservative such as formaldehyde, benzoic acid, the Sodium Benzoate one or more, water are deionized water.
For microemulsion, one or more among the newborn 500# of spendable emulsifier such as farming (lauryl sodium sulfate), Nongru-700 # (alkyl phenol formaldehyde resin polyoxyethylene ether), phenethyl phenol polyethenoxy base ether, phenethyl phenol polyethenoxy polyethenoxy ether 6%, agricultural newborn 507#6%, agricultural newborn 2201#, agricultural newborn 1601# (triphen ethyl-phenol polyoxyethylene polyoxypropylene front end and polymer), the agricultural newborn 600#; In solvent such as xylol, DMF, toluene, cyclohexanone, the solvent naphtha one or more; In stabilizing agent such as triphenyl phosphite, epoxychloropropane, the aceticanhydride one or more; Water is deionized water.
Bactericidal composition of the present invention has the following advantages:
One, the compound that preferred structure is novel, resistance risk is low is active high, effective;
Two, different effects mechanism, the bactericide synergetic synergy of multiaction site reduce resistance risk;
Three, enlarged the control spectrum, held and imitate length.Vegetables, fruit tree anthracnose, downy mildew, eqpidemic disease, melon climing rot etc. all there is excellent control efficiency;
Four, composition toxicity is low, and is environmentally friendly to crop safety, meets the direction of agricultural chemicals development.
Embodiment
Below in conjunction with embodiment the present invention is described further, but the present invention is limited to these embodiment absolutely not.In the prescription of all preparations, percentage all is weight percentage.
FORMULATION EXAMPLE 1
Bromothalonil 25%, kresoxim-methyl 25%, agricultural newborn 500#4.0%, farming breast 16015%, carrene 10%, ethylene glycol 3%, xylol complements to 100%.Above-mentioned raw materials is mixed, stirs and process 50% bromothalonil kresoxim-methyl missible oil through routine.
The part by weight of bromothalonil and kresoxim-methyl can change between 1: 80～80: 1 in this instance, and both gross weights can change between 10%～90%, can add 1-10% bigcatkin willow oxime acid (SHAM) in addition as synergist, formed new embodiment.
FORMULATION EXAMPLE 2
Bromothalonil 25%, Enestroburin 12.5%, linoleic acid 20%, methyl alcohol 8%, agricultural newborn 500#8%, agricultural newborn 600#5%, xylol complements to 100%.Above-mentioned raw materials is mixed, stirs through routine, process 37.5% bromothalonil Enestroburin missible oil.
The weight ratio of present embodiment bromothalonil and Enestroburin can change between 1: 20～20: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 3
Bromothalonil 40%, Fluoxastrobin 0.5%, 1601#7%, 500#5.1%, xylol complement to 100%.Above-mentioned raw materials is evenly mixed, stir and process 40.5% bromothalonil Fluoxastrobin missible oil.
The weight ratio of present embodiment bromothalonil and Fluoxastrobin can change between 1: 80～80: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 4
Bromothalonil 50%, Fluoxastrobin 6%, NPE 6.5%, NNO4%, polyoxyethylene alcohol 1.5%, calcium bicarbonate 1,5%, bentonite 10%, kaolin complement to 100%, and 56% bromothalonil azoxystrobin water dispersible granule is processed in above-mentioned raw materials mixing, pulverizing, granulation, oven dry.
The weight ratio of present embodiment bromothalonil and Fluoxastrobin can change between 1: 50～50: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 5
Bromothalonil 10%, pyraclostrobin 10%, polyvinyl alcohol 2.5%, sorbitan fatty acid polyoxyethylene groups ether 8%, alkyl glycol ether sodium sulfonate 2.5%; Farming breast 22012.5%, N-Methyl pyrrolidone 7.5%, ethylene glycol 10%, deionized water complement to 100%.Above-mentioned raw materials is mixed, shears and process 20% bromothalonil pyraclostrobin aqueous emulsion.
The weight ratio of present embodiment bromothalonil and pyraclostrobin can change between 1: 80～80: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 6
Bromothalonil 0.5%, oxime bacterium ester 40%, phenethyl phenol polyethenoxy base ether phosphate 4%, NPE 2.5%, propane diols 5%, deionized water complement to 100%.Above-mentioned raw materials is mixed, shears and process 40.5% bromothalonil trifloxystrobin water emulsion.
The weight ratio of present embodiment bromothalonil and oxime bacterium ester can change between 1: 80～80: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 7
Bromothalonil 8%, kresoxim-methyl 28%, carrene 10%, ethylene glycol 8%, APES formaldehyde condensation products 7%, sodium hydrogen phosphate 3%, antifoaming agent 1%.Above-mentioned raw materials is mixed, shears and process 36% bromothalonil kresoxim-methyl aqueous emulsion.
The weight ratio of present embodiment bromothalonil and kresoxim-methyl can change between 1: 70～70: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 8
Bromothalonil 10%, kresoxim-methyl 20%, DMF8%, methyl alcohol 4%, cyclohexanone 10%, phenethyl phenol polyethenoxy base ether 15%, phenethyl phenol polyethenoxy polyethenoxy ether 6%, agricultural newborn 507#6%, deionized water complement to 100%.Process 30% bromothalonil kresoxim-methyl microemulsion after stirring, dissolve the above-mentioned raw materials mixing fully.
The weight ratio of present embodiment bromothalonil and kresoxim-methyl can change between 1: 50～50: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 9
Bromothalonil 15%, SSF 126 22,5%, nekal formaldehyde condensation products 4%, white carbon 2%, xanthans 1%, Sodium Benzoate 2%, antifoaming agent 1%, water complement to 100%.With above-mentioned raw materials mix, shearing, sand milling make 37.5% bromothalonil SSF 126 suspending agent.
The weight ratio of present embodiment bromothalonil and SSF 126 can change between 1: 50～50: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 10
The withered powder of bromothalonil 0.3%, Fluoxastrobin 0.7%, sodium lignin sulfonate 1.5%, tea 2.3%, bentonite 3%, Magnesiumaluminumsilicate 0.9%, ethylene glycol 5%; Water complements to 100%, with above-mentioned raw materials evenly mix, 1% bromothalonil Fluoxastrobin suspending agent of shearing, sand milling system.
The weight ratio of present embodiment bromothalonil and Fluoxastrobin can change between 1: 70～70: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 11
Bromothalonil 50%, oxime bacterium ester 30%, methoxyl group fatty acid Sodium p-aminobenzene sulfonat 3.8%, sodium methylene bis-naphthalene sulfonate 4.5%, white carbon 10%, kaolin are complemented to 100%, with above-mentioned raw materials evenly mix, 80% bromothalonil oxime bacterium ester wetting powder of ultra micro comminution by gas stream system.
The weight ratio of present embodiment bromothalonil and oxime bacterium ester can change between 1: 70～70: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Formulation embodiment 12
Bromothalonil 15%, Enestroburin 35%, lauryl sodium sulfate 1.5%, white carbon 15%, sodium lignin sulfonate 7%, fine particle calcium carbonate complement to 100%.Process 50% bromothalonil Enestroburin wetting powder.
The weight ratio of present embodiment bromothalonil and Enestroburin can change between 1: 80～80: 1, also can add 1-10% bigcatkin willow oxime acid (SHAM) as synergist, formed new embodiment.
Biological Examples 1 compound activity is measured and the virulence evaluation
Measure bromothalonil and the agent of methoxy acrylic ester compounds list and be mixed the indoor virulence of series with the mycelial growth rate method the pepper anthracnose bacterium.Supply the examination pathogen to pick up from field morbidity fruit, cultivate through indoor three separation and purification.With of the card punch punching of 7 days anthrax bacteria colony edge of growth with diameter 5mm; Take off the bacterium cake, be inoculated in and contain on the band poison PDA medium that supplies reagent liquid, every processing repeats for 3 times; Place 25 ℃ of insulating boxs to cultivate; Take out after 7 days, adopt the right-angled intersection method to measure colony diameter, calculate and respectively handle colony diameter mean value.Measure the result and see table 1.
The mycelia bacteriostasis rate calculates by following formula:
D＝D
1-D
2
In the formula: the D--bacterium colony increases diameter;
D
1-colony diameter;
D
2-bacterium cake diameter;
In the formula: the I-mycelial growth inhibition rate;
D
0-blank bacterium colony increases diameter;
D
3-chemicals treatment bacterium colony increases diameter;
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ confession reagent agent EC
50) * 100
The percentage composition of B in percentage composition+B medicament toxicity index * mixture of A in theoretical toxicity index (TTI)=A medicament toxicity index * mixture
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (the ATI)/theoretical toxicity index (TTI) of mixture] * 100
Each handles the Toxicity Determination to the pepper anthracnose bacterium table 1
Biological Examples 2 bigcatkin willow oximes acid (SHAM) are to the synergistic effect of the compound that is mixed
Mensuration to the mycelial growth synergistic effect: adopt growth rate method to measure bigcatkin willow oxime acid (SHAM) suppresses pepper anthracnose bacterium (Colletotrichum capsici) mycelial growth to the compound that is mixed synergistic effect.The former bacterium of pepper anthracnose is picked up from field morbidity fruit, identifies through separation and Culture to obtain.Assay method and EC
50Computational methods are with biological Examples 1.
Mensuration to the spore germination synergistic effect: the former bacterium of pepper anthracnose is cultured to big volume production spore on the PDA medium.Wash spore with sterile water, the concentration that double gauze filters (mycelia) back system is 10
5The spore suspension of individual spore/ml.Supply reagent immunomodulator compounds mass ratio to be 1: 1.Contain on the 20% agar powder medium that supplies reagent agent series concentration gradient supplying examination pathogen spore suspension to be uniformly coated on; Place and cultivate after 10 hours under 25 ℃ of no optical condition; Under 20 * 10 power microscopes, observe spore germination rate; Germ tube length promptly is judged to be sprouting above half of the own diameter of spore, calculates the EC that medicament suppresses spore germination.
Result of the test shows: bigcatkin willow oxime acid (SHAM) has remarkable synergistic effect to supplying the examination composition, and concentration improved 9.8-33.4 doubly during mycelial growth was suppressed, and concentration improved more than 179 times during spore germination was suppressed; The synergistic effect that composition that bigcatkin willow oxime acid (SHAM) is mixed for bromothalonil and methoxy acrylate series bactericidal agent has excellence is described; Reduced the composition consumption, simultaneously, to the inhibiting strong synergy of spore; Can prevent infecting again of germ; Prolong and hold effect, reduce the medication number of times, practice thrift the control cost.
Table 2 bigcatkin willow oxime acid (SHAM) is to the synergistic effect of the compound that is mixed
Biological Examples 3 composition for preventing and controlling mango anthracnose field trials
Supply reagent agent and concentration gradient: formulation embodiment 4 (56% bromothalonil azoxystrobin water dispersible granule), 25% bromothalonil missible oil 800mg a.i./kg, 650mg a.i./kg, 500mg a.i./kg; 25% Fluoxastrobin suspending agent 200mg a.i./kg, 150mg a.i./kg, 100mg a.i./kg.Experimental evidence " pesticide field efficacy medicine test criterion (two) " the 98th part: the bactericidal agent for preventing and treating mango anthracnose requires to carry out.The test kind is Luzon awns, the age of tree 5 years, and test and Selection was carried out in the mango early flowering season.Rainy before the medicine, typhoon is arranged, mango anthracnose is multiple.Middle fertility experimental field, the management of water article are good.Arrange experimental plot district's group at random, repeats totally 40 sub-districts, 4 strains of every sub-district for 4 times.No. 16 knapsack hand sprayers sprayings of workers and peasants are adopted in test, change the ripe phase respectively at early flowering season, the phase of bearing fruit, middle fruit phase and fruit and respectively spray medicine once.10 days investigation results behind the last spray medicine, investigation method: random searching 3 strains of every sub-district, every strain press East, West, South, North, in 5 samplings, 30 young fruits of every some investigation, the total fruit of record number, sick really number at different levels.
Sick fruit stage division:
0 grade: anosis;
1 grade: needle-like brown spot is less than 5 on every young fruit;
3 grades: needle-like brown spot is 6～15 on every young fruit;
5 grades: needle-like brown spot is 16～25 on every young fruit;
7 grades: needle-like brown spot is more than 26 on every young fruit, and spot links to each other.
9 grades: whole fruit is met personally scab, has red point-like thing to occur.
The preventive effect computational methods:
Result of the test shows: formulation embodiment 4 (56% bromothalonil azoxystrobin water dispersible granule), each is handled concentration gradient and all has good control efficiency, and apparently higher than single agent contrast, wherein concentration is handled preventive effect and contrast medicament high concentration preventive effect suitable.Duration of test is not seen has harmful effect to mango and beneficial organism.
Each handles the preventive effect to mango anthracnose table 3
Biological Examples 4 composition for preventing and controlling watermelon anthrax field trials
Test and Selection is carried out in melon ground, Bei Bei growth of watermelon family, Chongqing, and variety of watermelon is the hat dragon, 2 meters of line-spacings, 1.5 meters of spacing in the rows, and every canopy two row, about 70 square metres of area, every canopy are a processing.Formulation embodiment 1 (50% bromothalonil kresoxim-methyl missible oil) 250,400,550g a.i./hm are established in test altogether
2, 25% bromothalonil missible oil 800g a.i./hm
2, 30% kresoxim-methyl wetting powder 250g a.i./hm
2Totally 5 chemicals treatment repeat totally 18 sub-districts (adding blank), 30 square metres of every sub-district areas 3 times.The knapsack hand sprayer spraying is adopted in test, respectively at 7,10,15 days investigation disease indexs before the medicine and behind the medicine and calculate preventive effect.
State of an illness stage division:
0 grade: no scab;
1 grade: lesion area accounts for below 5% of fruit area;
3 grades: lesion area accounts for the 6%-10% of fruit area;
5 grades: lesion area accounts for the 11%-25% of fruit area;
5 grades: lesion area accounts for the 16%-25% of fruit area;
7 grades: lesion area accounts for the 26%-50% of fruit area;
9 grades: lesion area accounts for more than 51% of fruit area.
Result of the test shows: supply each concentration of treatment of reagent agent formulation embodiment 1 (50% bromothalonil kresoxim-methyl missible oil) all watermelon anthrax to be had remarkable preventive effect, 7 days, 10 days 250g a.i./hm behind its Chinese medicine
2With contrast medicament 25% bromothalonil missible oil 800g a.i./hm
2, 30% kresoxim-methyl wetting powder 250g a.i./hm
2Preventive effect is suitable, 15 days and 400g a.i./hm behind the medicine
2, 550g a.i./hm
2Supply reagent agent preventive effect apparently higher than the contrast medicament, explain that 50% bromothalonil kresoxim-methyl missible oil control watermelon anthrax not only has good quick-acting, have lasting effect preferably simultaneously, synergy is remarkable.Test does not see that watermelon and beneficial organism are had harmful effect.
Each handles the preventive effect to watermelon anthrax table 4
Biological Examples 5 composition for preventing and controlling pepper anthracnose field trials
Subjects is the open country pepper anthracnose, and it is medium experimental field to be chosen in soil fertility, and soil fertility is even, and the cultivation management condition is good, and capsicum grows fine, and anthracnose takes place in the uniform plot.Test medicine and concentration gradient are formulation embodiment 5 (20% bromothalonil pyraclostrobin water) emulsion 280g/hm
2, 320g/hm
2, 360g/hm
2Contrast medicament 25% bromothalonil missible oil 560,640,720g/hm
2And 25% pyraclostrobin missible oil 120,150,180g/hm
2Adopt district's group arrangement at random, 1 blank repeats 4 times, amounts to 40 sub-districts, every sub-district area 30m
2Guard row is established in the minizone, in case the mutual interference of medicament phase.Test is adopted IX one 16 type sprayers to carry out cauline leaf and is sprayed, and evenly spray is distributed on capsicum cauline leaf, the fruit.Carried out field state of an illness investigation on the 7th day behind the medicine, 5 point sampling random sampling are adopted in investigation, and a situation arises for the investigation pepper anthracnose, 50 fruits of every sub-district investigation, and the sick fruit of classification numeration number calculates diseased fruit rate, disease index and control efficiency.2～3d adopts each sub-district of ocular estimate investigation to have or not poisoning to produce after each dispenser.
Stage division:
0 grade: no scab;
1 grade: lesion area accounts for below 2% of fruit area;
3 grades: lesion area accounts for the 3%-8% of fruit area;
5 grades: lesion area accounts for the 9%-15% of fruit area;
7 grades: lesion area accounts for the 16%-25% of fruit area;
9 grades: lesion area accounts for more than 25% of fruit area.
To look into diseased fruit rate (comprising shedding) during each the investigation
Disease refer to the preventive effect computational methods with biological Examples 4.
Result of the test shows: formulation embodiment 5 (20% bromothalonil pyraclostrobin aqueous emulsion) has good preventive effect to pepper anthracnose, tests each processing horizontal preventive effect a little more than the contrast medicament, and test does not see that crop and beneficial organism are had harmful effect.
Each handles the preventive effect to pepper anthracnose table 5
Biological Examples 6 composition for preventing and controlling plastic tent cucumber anthracnose field trials
Test is located in the cucumber booth, and cucumber variety is that grind No. one in Tianjin.The passageway is experimental field arranged in the middle of the booth, every limit plantation cucumber, width is 5m, and experimental field soil fertility is medium, and the cultivation management condition is good.Test is provided with formulation embodiment 9 (37.5% bromothalonil SSF 126) suspending agent 300,420,480g/hm
2, 25% bromothalonil missible oil 800g/hm
2, 25% SSF 126 suspending agent 300g/hm
2Adopt district's group arrangement at random, every processing 4 sub-districts amount to 24 sub-districts, every sub-district area 5m * 6m=30m
2Guard row is established in the minizone, in case the mutual interference of medicament phase.IX one 16 type sprayers are adopted in test, and every sub-district spray amount is that 3L carries out cauline leaf and sprays, and evenly spray is distributed in the cucumber leaves positive and negative.Behind medicine, carried out field state of an illness investigation in 7 days, 5 samplings in every sub-district, every some investigation 2 strains, statistical data is also calculated preventive effect.Grade scale and preventive effect computational methods are with biological Examples 4.
Result of the test shows: test medicine is respectively handled preventive effect all apparently higher than the contrast medicament, explains after bromothalonil and SSF 126 are mixed and has obviously improved the control efficiency to cucumber anthracnose, to cucumber safety.
Each handles the preventive effect to cucumber anthracnose table 6
Claims (6)
1. bromothalonil and the composite bactericidal composition of methoxy acrylate series bactericidal agent, its characteristic comprises:
A) first active component is a bromothalonil;
B) second active component is a kind of in methoxy acrylic bactericide kresoxim-methyl, Fluoxastrobin, Enestroburin, pyraclostrobin, the ZJ0712;
C) weight ratio of bromothalonil and methoxy acrylate series bactericidal agent is 1: 80～80: 1, and the gross weight percentage composition in composition is 1%～90%;
D) weight percentage of synergetic effect additive bigcatkin willow oxime acid (SHAM) is 1%～50%.
2. bactericidal composition according to claim 1 is characterized in that: the weight ratio of bromothalonil and methoxy acrylate series bactericidal agent is 1: 50～50: 1.
3. bactericidal composition according to claim 2 is characterized in that: the weight ratio of bromothalonil and methoxy acrylate series bactericidal agent is 1: 10～10: 1.
4. bactericidal composition according to claim 1 is characterized in that: the gross weight percentage composition of bromothalonil and methoxy acrylate series bactericidal agent is 1%～90% in the composition.
5. according to any described bactericidal composition of claim 1～4, it is characterized in that: said composition is processed as water dispersible granules, suspending agent, missible oil, microemulsion, aqueous emulsion or wetting powder formulation.
6. the said composition of claim 1 is being prevented and treated wheat scab, vegetables, fruit tree anthracnose, downy mildew, eqpidemic disease, powdery mildew, the purposes in melon anthracnose, climing rot, fusarium wilt, the powdery mildew.
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| CN102308799A (en) * | 2010-07-02 | 2012-01-11 | 海利尔药业集团股份有限公司 | Germicidal composition containing enestroburin and bromothalonil |
| CN104663660B (en) * | 2012-08-23 | 2017-05-31 | 深圳市中州实业有限公司 | A kind of efficient bactericidal composite containing Hexanaphthene flusulfamide |
| CN103004823A (en) * | 2013-01-21 | 2013-04-03 | 山东滨农科技有限公司 | Bactericide composition containing pyraclostrobin and bromothalonil |
| CN104472490B (en) * | 2014-12-03 | 2017-12-12 | 广东中迅农科股份有限公司 | A kind of bactericidal composition containing ZEN 90160 and bromothalonil |
| CN104970032A (en) * | 2015-07-09 | 2015-10-14 | 广西兄弟农药厂(普通合伙) | Pesticide microemulsion containing bromothalonil and pyraclostrobin |
| CN106172404B (en) * | 2016-07-26 | 2018-04-17 | 山东省果树研究所 | A kind of bactericidal composition and its application containing coumoxystrobin and bromothalonil |
| CN106689128A (en) * | 2016-12-11 | 2017-05-24 | 广东中迅农科股份有限公司 | Antiseptic composition containing bromothalonil and phenamacri |
| CN106719717A (en) * | 2017-01-03 | 2017-05-31 | 广东中迅农科股份有限公司 | bactericidal composition containing bromothalonil |
| CN107668050B (en) * | 2017-10-25 | 2020-04-14 | 江苏克胜集团股份有限公司 | Insecticidal composition containing mepiquat chloride specially used for preventing and treating rice planthopper |
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