A kind of seed treatment composition and application thereof that contains Rynaxypyr
Technical field
The present invention relates to a kind of mixed pesticide technology, relate to a kind of by Rynaxypyr, Fluoxastrobin, fludioxonil, the special-purpose seed treatment complex preparation of the composite desinsection that forms of metalaxyl/sterilization paddy rice and application thereof specifically.
Background technology
Rynaxypyr
Chinese adopted name: the former medicine of the wide KK of Rynaxypyr health
English name: Chlorantraniliprole
Molecular formula: C18H14N5O2BrCl2
Chemical name: benzene 3-bromo-N-[4-chloro-2-methyl-6-[(methyl-carbamoyl)]-1-(3-chloropyridine-2-yl)-1-hydrogen-pyridine-5-formamide
Main physicochemical character: pure product outward appearance is white crystals, proportion (liquid is required) 1.507g/mL, fusing point 208-210 ℃, 330 ℃ of decomposition temperatures, vapour pressure (20~25 times) 6.3 * 1012Pa, solvability (20~25 times, mg/L): water 1.023, acetone 3.446, methyl alcohol 1.714, acetonitrile 0.711, ethyl acetate 1.144
Toxicity: belong to little poison level
Rynaxypyr effect characteristics: because the chemical constitution of Rynaxypyr has the brand-new desinsection principle that other any insecticides do not possess, can efficiently activate insect ryania (muscle) acceptor.Excessively discharge the calcium ion in the intracellular calcium store, cause the insect paralysis dead, active high to the larva of lepidoptera pest, insecticidal spectrum is wide, and lasting effect is good.According to present result of the test the specific activity other products of target pest is exceeded 10-100 doubly. and can cause some lepidopterous insects mating process disorder, studies have shown that it can reduce the spawning rate of multiple noctuidae pests, because its lasting effect is good and the biological property of resistance of rainwater washing against, these characteristics are actually permeability, conductivity, chemical stability, high insecticidal activity and cause insect to stop to get the comprehensive embodiment of effects such as food immediately.Therefore determined it to have longer and more stable and to the protective effect of crop than the present overwhelming majority at other insecticide of usefulness.
The Lepidoptera of the remarkable high-efficiency broad spectrum of Rynaxypyr, main beetle and aleyrodid insecticide, reliable and stable preventive effect is just arranged under low dosage, stop to get food immediately, the drug effect phase is longer, anti-rainwater flushing provided at once and permanent protection in any period of plant growth; A new generation's insecticide, the best medicament that the brand-new mechanism of action is pest resistance treatment, use by turns; To the mammal low toxicity, very safe to the dispenser personnel; To useful arthropods such as bird, fish and honeybee low toxicity, be fit to very much the insect comprehensive regulation; To consumer safety, reach the MRL standard.Fluoxastrobin
Fluoxastrobin english common name azoxystrobin
Commodity Amici by name reaches, and peace is gone out and reached
Chemical name: (E)-2-{2-[6-(2-cyano-benzene oxygen) pyrimidine-4-base oxygen base] phenyl }-the 3-methoxy-methyl acrylate.
English chemical name: methyl (E)-2-{2-[6-(2-cyanophenoxy) pyrimidin-4-yloxy] phenyl}-3-metoxyacrylate
The CAS accession number is: [131860-33-8]
Physicochemical property: former medicine is brown solid, fusing point 114-116 ℃, and vapour pressure 1.1 * 10-7mpa (20 ℃), solvability 6mg/L in the water is to hydrolysis-stable.
Main formulation products has 25%, 80% water dispersible granules, and 22.9% suspending agent etc. are used for cereal crop, paddy rice, and peanut, grape, fruit tree prevents and treats powdery mildew, rust, downy mildew, rice blast etc.
Fludioxonil
Chinese: fluorine fludioxonil; When suitable happy; 4-(2,2-, two fluoro-1,3-benzo dioxy-4-yl) pyrroles-3-nitrile
English name
fludioxonil;Saphire;Celest;4-(2,2-difluoro-1,3-benzodiox?ol-4-yl)pyrrole-3-carbonitrile;4-(2,2-difluoro-1,3-benzo?dioxol-4-yl)-1H-pyrrole-3-carbonitrile
Density 1.54 (20 ℃)
Fusing point (℃) 199.8
Vapour pressure (Pa) 3.9E-7 (20 ℃)
Proterties: pure product are the colourless crystallization body.
The dissolving situation: solvability (mg/L, 25C); Water 1.8, acetone 190, methyl alcohol 44, toluene 2.7, n-octyl alcohol 20, hexane 0.0078
Metalaxyl english common name metalaxyl
Other titles: Apron, guarantor's kind of spirit, metalaxyl, auspicious poison frost, the white peace of first, the many Mils of thunder, metalaxyl
Type: belong to acid amide fungicides
Toxicity: belong to the hypotoxicity bactericide.Former medicine rat acute per os LD50 is 669 milligrams/kilogram, and is acute through skin LD50>3100 milliliter/kilogram.Eyes and skin are had slight spread effect, and to the fish low toxicity, trout TLM is 100 milligrams/kilogram (96h).
[0027] formulation 5% granule, 25% wetting powder, 35% seed dressing, 50% metalaxyl adds the copper wetting powder, 58% metalaxyl MnZn pulvis etc.
The synthetic inhibitor of characteristics rRNA I.Systemic fungicide has protection and therapeutic action, can be absorbed by the root, stem and leaf of plant, and the interior moisture of object transports thereupon, and transfers to each organ of plant.Two-way conductive performance is arranged, lasting period 10-14 days, but soil treatment lasting period period of greater than two months.
The scope of application is to Pseudoperonospora cubensis, phytophthora root rot bacterium and rotten germ various crop downy mildew, and phytophthora root rot, the millet downy mildew of gourd, fruit and vegetable class are effective.
The main medicament of handling with regard to rice paddy seed and the situation of preventing and treating disease thereof below are described below:
The U.S. favourable incoming road chemical industrial company develops defends good fortune (active ingredient: carboxin, tmtd) 40% suspending agent, be mainly used in preventing and treating rice seedling blight (160~200g/hm2), bakanae disease (120~160g/hm2).
(active ingredient: 5% seed dressing fluorine worm nitrile) is mainly used in rice hoppers, rice leaf roller, rice thrips, rice gall midge (80~160g/100kg seed, assorted effect rice: 20~40g/kg, conventional rice) to the sharp strength spy that France Rhone-Poulenc develops.
The good year winter that U.S. Fu Meishi company develops, (active ingredient: carbosulfan, 35% seed treatment was used for control rice thrips (210~400g/100kg seed), rice gall midge (600~800g/100kg seed).[0034] above three kinds of external seed treatment kinds, though obtain registration in China, its price height is difficult in domestic large tracts of land and promotes.
Bakanae disease, main line parasitosis, rice blast, banded sclerotial blight, bacterial leaf-blight and the helminthosporium leaf spots etc. of paddy rice of causing harm are many to infect propagation by seed and soil.Have a lot of pathogens on the rice paddy seed, can show various disease symptom in rice strain growth different times, stage.
By seed transmission bakanae disease, main line disease arranged.Bakanae disease is mainly passed the winter with seed, after the seed germination, infects the seedling basal part of stem and passes sick; And by what soil infected propagation banded sclerotial blight, rice blast, bacterial leaf-blight etc. are arranged.Banded sclerotial blight generation area maximum wherein, the incidence of disease is the highest, the field underproduction rate of being injured is up to more than 50%, its mainly with remain in sclerotium in the soil survive the winter pass sick.After seed-borne disease takes place, growth, growth, output, the quality of rice strain there is in various degree influence,
Secondly, because seed rice carries disease germs, be the first dip-dye source that causes rice strain morbidity, in the season of growth, can cause infecting again, take place, spread, endangering of disease.Traditionally, to the control of seed-borne disease, present stages adopt always and carry out seed treatment eliminate seed-borne disease before broadcasting, and make seed and seedling exempt from causing harm of soil-borne disease and insect.The bactericide kind of bactericide seed treatment that is used for seed treatment is a lot, has to inhale in inorganic and organic, volatile or nonvolatile, interior suction or non-.After preparing, use with pulvis, water solube powder, wetting powder, emulsion, liquor or suspending agent.A good seed treatment should not stay any hazard residue thing that influences seed sprouting, seedling development, plant strain growth and product.
China just utilizes medicament seed soaking, seed dressing to prevent and treat soil insect and sprout term disease since the fifties.Rise the eighties and just begin rice paddy seed is carried out Cotton seeds, in order to promote rice paddy seed to the absorption of nitrogen in soil and the fertilizer and control seedling stage diseases and pests.A large amount of investigation and test all show, the seed rice that the seed soaking of process medicament, seed dressing or Cotton seeds are crossed, the loss that can prevent or reduce that seed and the germ seed of soil infection rot, seedling is withered, damping off and other disease causes, improve output, saved great amount of manpower and material resources, seed rice consumption and time again.
Summary of the invention
The object of the present invention is to provide a kind of is Rynaxypyr by component A, and active component B is Fluoxastrobin, and active constituent C is fludioxonil, and active component D is the composite insecticide/bactericides rice seed treating agent that forms of metalaxyl.
Another object of the present invention is to prevent and treat by seed and soil and infects bakanae disease, main line parasitosis, rice blast, banded sclerotial blight, bacterial leaf-blight and the helminthosporium leaf spot etc. of propagating the paddy rice of causing harm and do not stay any hazard residue thing that influences seed sprouting, seedling development, plant strain growth and product.
The object of the invention implementation procedure is as follows:
A kind of seed treatment composition that contains Rynaxypyr by weight percentage, comprises following component:
The percentage by weight of Rynaxypyr is preferably 1-30% in the above-mentioned composition, and the percentage by weight of Fluoxastrobin is preferably 1-30%, and the percentage by weight of fludioxonil is preferably 1-35%, and the percentage by weight of metalaxyl is preferably 1-35%; The percentage by weight of further preferred Rynaxypyr is 1-20%, and the percentage by weight of Fluoxastrobin is 1-20%, and the percentage by weight of fludioxonil is 1-35%, and the percentage by weight of metalaxyl is 1-15%; The percentage by weight that more preferably is defined as Rynaxypyr is 20%, and the percentage by weight of Fluoxastrobin is 10%, and the percentage by weight of fludioxonil is preferably 8%, and the percentage by weight of metalaxyl is preferably 10%;
Described wetting agent is selected from any or multiple in lauryl sodium sulfate, neopelex, alkylnaphthalene sulfonate, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol polyoxyethylene phosphate, phenethyl phenol polyethenoxy base ether phosphate, lauryl alcohol polyethylene glycol oxide base ether sodium sulfate, the alkylphenol polyoxyethylene formaldehyde condensation products succinate sodium sulfonate.
Described dispersant is selected from any or several in dispersing agent MF, alkyl naphthalene formaldehyde condensate sulfonates, polycarboxylate, calcium lignosulfonate, the sodium lignin sulfonate.
Described adhesive is selected from any or several in alkylaryl polyoxy ethyl ether, fatty alcohol polyoxy ethyl ether, alkylnaphthalene sulfonate and the polyvinyl alcohol
Described adhesive is selected from any or several in alkylaryl polyoxy ethyl ether, fatty alcohol polyoxy ethyl ether, alkylnaphthalene sulfonate and the polyvinyl alcohol
Described filler is selected from one or more in clay, potter's clay, kaolin, diatomite, the pyrophyllite.
Described composition can be processed as suspending agent, wetting powder, water dispersible granules.
The method step for preparing above-mentioned wetting powder: with the method for machinery or air-flow pulverizing, the former medicine Rynaxypyr of solid, Fluoxastrobin, fludioxonil, metalaxyl are machined to more than the 800-1000 order, and then and dispersant, wetting agent, adhesive, auxiliary agents such as filler fully mix, and can be packaged into the wetting powder finished product after qualified finally by the every technical indicator of quality testing.
Good effect is: control is infected bakanae disease, main line parasitosis, rice blast, banded sclerotial blight, bacterial leaf-blight and the helminthosporium leaf spot etc. of propagating the paddy rice of causing harm and is not stayed any hazard residue thing that influences seed sprouting, seedling development, plant strain growth and product by seed and soil.Play synergistic effect, obtained unexpected seed treatment effect, its form by composition is used and has not only been improved preventive effect, and has reduced use cost, has improved utilization rate of active components.
Specific embodiments
In order to understand the present invention better, the invention will be further described below in conjunction with embodiment, but the scope of protection of present invention is not limited to the scope that embodiment represents.
Embodiment 1: with the method for air-flow pulverizing, with the former medicine Rynaxypyr of solid, Fluoxastrobin, fludioxonil, metalaxyl is machined to more than the 800-1000 order, accurately take by weighing Rynaxypyr 20% then, Fluoxastrobin 10%, fludioxonil 8%, metalaxyl 10%, dispersant alkyl naphthalene formaldehyde condensate sulfonates 6%, wetting agent alkylnaphthalene sulfonate 4%, fully mix after adhesive alkylaryl polyoxy ethyl ether 5% filler kaolin is supplied, can be packaged as 48% Rynaxypyr Fluoxastrobin fludioxonil metalaxyl wetting powder after qualified finally by the every technical indicator of quality testing.
Embodiment 2: with the method for air-flow pulverizing, with the former medicine Rynaxypyr of solid, Fluoxastrobin, fludioxonil, metalaxyl is machined to more than the 800-1000 order, accurately take by weighing Rynaxypyr 20% then, Fluoxastrobin 10%, fludioxonil 8%, metalaxyl 10%, dispersant alkyl naphthalene formaldehyde condensate sulfonates 6%, wetting agent alkylnaphthalene sulfonate 4%, adhesive alkylaryl polyoxy ethyl ether 5%, deionized water adds to 100% and carries out just mixing shear agitation, disperse, after being mixed with slurry, ground 1-2 hour through horizontal sand mill, particle diameter is being got final product below 5 microns, and has certain viscosity, flowable 48% Rynaxypyr Fluoxastrobin fludioxonil metalaxyl liquid suspension preparation.
Embodiment 4: with the method for air-flow pulverizing, with the former medicine Rynaxypyr of solid, Fluoxastrobin, fludioxonil, metalaxyl is machined to more than the 800-1000 order, accurately take by weighing Rynaxypyr 20% then, Fluoxastrobin 10%, fludioxonil 8%, metalaxyl 10%, dispersant alkyl naphthalene formaldehyde condensate sulfonates 6%, wetting agent alkylnaphthalene sulfonate 4%, adhesive alkylaryl polyoxy ethyl ether 5% filler kaolin and suitable quantity of water fully are mixed into plastic material, through extruder grain, oven dry is sieved and can be packaged into 48% Rynaxypyr Fluoxastrobin fludioxonil metalaxyl water dispersion granule after qualified finally by the every technical indicator of quality testing.
Biological control example 1 is prevented and treated bakanae disease of rice, main line parasitosis, rice blast, banded sclerotial blight, bacterial leaf-blight field control effectiveness test
Preventing and treating rice disease classification, preventive effect computational methods all carries out the residential quarter of State Standard of the People's Republic of China's " pesticide field efficacy medicine test criterion " test medicine, contrast medicament and blank and handles and adopt at random district's group to arrange, residential quarter area 50m2, repeat for 4 times, investigation state of an illness radix before the dispenser, dispenser divides i.e. 7 days, 14 days, 28 days investigation prevention effects three times after the dispenser when the paddy rice jointing infects mid-term.According to rice leaf sheath and blade damage symptom grading, be unit with the strain, every residential quarter diagonal is got 5 investigation, and every some investigation links to each other five clumps, and totally 25 clumps, record total strain number, diseased plant is counted each sick progression.
Stage division (be unit with the blade)
0 grade: complete stool is anosis
1 grade: quaterfoil and following each leaf sheath, blade morbidity;
3 grades: the 3rd blade and following each leaf sheath, blade morbidity;
5 grades: second and following each leaf sheath, blade morbidity;
7 grades: sword-like leave blade and following each leaf leaf sheath, blade morbidity;
9 grades: the complete stool morbidity, withered ahead of time.
The drug effect computational methods:
Disease index=∑ (the sick numbers of sheets at different levels * relative level numerical value) * 100/ investigation sum * 9
Control efficiency (%)=(1-CK0 * PT1/CK1PT0) * 100
In the formula: CK0, CK1 are respectively the forward and backward disease index of blank district dispenser;
PT0, PT1 are respectively the forward and backward disease index of chemicals treatment district dispenser.
Prevent and treat bakanae disease of rice
Prevent and treat rice sheath blight disease
Field control effectiveness test is the result show, control is infected bakanae disease, main line parasitosis, rice blast, banded sclerotial blight, bacterial leaf-blight and the helminthosporium leaf spot etc. of propagating the paddy rice of causing harm and do not stayed any hazard residue thing that influences seed sprouting, seedling development, plant strain growth and product by seed and soil.Play synergistic effect, obtained unexpected seed treatment effect, its form by composition is used and has not only been improved preventive effect, and has reduced use cost, has improved utilization rate of active components.Control efficiency all is better than single agent kind.