Background technology
Humus (Humic Acid, be called for short HA) be a kind of natural organic high molecular compound, at the remains of occurring in nature mainly animal and plant, through the natural organic substance of element of the first species's complexity that the long-term complicated decomposition of microorganism and conversion and geochemical a series of process are formed and accumulate.The complex structure of humus, have the effects such as ion exchange, chelating, flocculation and colloidal sol, thus humic acids product could play corresponding function in each industry.But the humus of separate sources is forming, is all having certain difference in nature.Yellow humus (Fulvic Acid, be called for short FA) be elite in humus, there is high, the concentrated property of quality, full dissolubility is good, it is the material that in humus, activity is best, resistance is the strongest, more easily be absorbed by plants and utilize, and yellow humus can be directly water-soluble, plant can be made continuously to absorb nutrient, reach the object of quick growth, increasing both production and income.The document " application study of yellow humus in agricultural " that Sun Li, Ma Zhijun of Heilongjiang Prov. Academy of Sciences deliver discloses: yellow humus can stimulating plant physiological metabolism, hestening rooting is germinateed, promote to nourish and grow and reproductive growth, strengthen the ability such as resistance, disease and insect resistance of plant, improve the output of crops, improve quality of agricultural product.
Imidacloprid (Imidacloprid) is Nitromethylene insecticides, is the acting body of nicotinic acetylcholine esterase acceptor, and it is malfunctioning that interference pest movements nervous system makes chemical signal transmit, without cross resistance problem.There is interior suction, tag, stomach poison function, to be widely used on sugarcane, paddy rice, vegetables anti-ly to eliminate aphis, sugarcane borer, sugarcane tortoise, rice fulgorid, thrips, the insect such as aleyrodid.
Ethiprole is Phenylpyrazole insecticides.Insecticidal spectrum is wide, and main its mechanism of action of insect that hinders is the fluoride metabolism hindering insect γ-aminobutyric acid to control, to sugarcane sugarcane tortoise, sugarcane moth borer, plant hopper, leafhopper, etc. Lepidoptera, coleoptera larvae have very high insecticidal activity.
Sugarcane tortoise is the primary pest in the sugarcane production of Guangxi, and long-term large area occurs, and harm is serious.In recent years, main cane district, Guangxi control sugarcane tortoise, sugarcane borer generally use Furadan, thimet, phoxim, and medicine variety is more single, and service time is longer, and insect has produced larger pesticide resistance, and control efficiency obviously reduces; Though terbufos has good control efficiency to sugarcane tortoise, sugarcane borer, terbufos belongs to highly toxic pesticide, and China has now forbidden that the registration on sugarcane uses.Therefore, screening new medicament, is rationally used alternatingly, slows down pest resistance to insecticide very necessary.Inventor finds by a large amount of tests and screening the granular pesticide that Imidacloprid, ethiprole, humus are composite, is used for preventing and treating sugarcane sugarcane tortoise and has fine synergistic function, have good control efficiency to control sugarcane tortoise.
Summary of the invention
The object of this invention is to provide a kind of granular pesticide containing humus and ethiprole, solve the medium-term and long-term use in current sugarcane district single chemical control sugarcane tortoise, make sugarcane tortoise produce larger pesticide resistance to single medicament, the problem that control efficiency declines.Using the granular pesticide that Imidacloprid, ethiprole, humus are composite, effectively improving on the basis of drug effect, the resistance of sugarcane can be improved, strengthen crop growing state.
The present invention solves the problems of the technologies described above taked technical scheme: provide
a kind of granular pesticide containing humus and ethiprole, be made up of active ingredient, binding agent, wetting agent, sustained release agent and carrier;
Described active ingredient is made up of humus, Imidacloprid and ethiprole, wherein the percentage by weight of humus in particle is 1% ~ 5%, the percentage by weight of Imidacloprid in granule is 0.5% ~ 3%, and ethiprole percentage by weight in granule is 0.5% ~ 3%.
The percentage by weight of described binding agent in granule is 1% ~ 8%, and binding agent is selected from: one or more in polyvinyl alcohol, dextrin, polyvinylpyrrolidone, sodium alginate or wooden calcium sulfonate.
The percentage by weight of described wetting agent in granule is 1% ~ 5%, wetting agent be selected from alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylbenzene polyoxyethylene ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkylsulfonate, naphthalene sulfonate, lauryl sodium sulfate or alkyl benzene sulphonate one or more.
The percentage by weight of described sustained release agent in granule is 1% ~ 8%, sustained release agent be selected from methylcellulose, CMC, modified starch or gum Arabic one or more.
Described filler be selected from kaolin, potter's clay, diatomite, bentonite or white carbon one or more.
The described granular pesticide preparation method containing humus is: Imidacloprid, ethiprole, humus, binding agent, wetting agent, sustained release agent and carrier are mixed by formula rate, pulverize with micro jet, through mediating, then add namely to obtain after carrying out granulation, drying, screening in fluidized-bed granulation dryer of the present invention containing humus granular pesticide.
Of the present invention containing humus granular pesticide, be mainly used in control sugarcane soil insect sugarcane tortoise.
The present invention has following beneficial effect:
(1) active ingredient of the present invention is made up of humus, Imidacloprid and ethiprole, and three kinds of component synergistic functions are obvious, and sugarcane tortoise sugarcane district being produced to resistance has good control efficiency, can reduce spraying times and formulation rate, reduce drug cost.
(2) the present invention can not only effectively prevention and control sugarcane tortoise harm generation, and sugarcane resistance can be significantly improved, required nutritive element containing each stage in sugarcane production process in humus, can promote sugarcane root development and plant strain growth, improves the yield and quality of sugarcane.
(3) product is made granule by the present invention, and the application method of adopt ditch spread, spreading manuer in holes, spreading fertilizer over the fields, compares conventional pesticide spray-on process and have the features such as low toxicity, low-residual, safety.
Embodiment
Product embodiments
Embodiment 1
2.5% Imidacloprid ethiprole humus granule
Preparation method: Imidacloprid 1kg, ethiprole 0.5kg, humus 1kg, naphthalene sulfonate 4kg, polyvinyl alcohol 4kg, methylcellulose 3kg, kaolin complements to 100kg.Above-mentioned recipe ingredient is mixed, after pulverizing granulation, drying, screening, namely obtains 2.5% Imidacloprid ethiprole humus granule of the present invention.
Embodiment 2
6% Imidacloprid ethiprole humus granule
Preparation method: Imidacloprid 1kg, ethiprole 3kg, humus 2kg, alkylsulfonate 5kg, dextrin 2kg, modified starch 5kg, diatomite are mended to 100kg.Mixed by above-mentioned recipe ingredient, 6% Imidacloprid ethiprole humus granule is made in pulverizing granulation, drying, screening.
Embodiment 3
4.5% Imidacloprid ethiprole humus granule
Preparation method: Imidacloprid 0.5kg, ethiprole 1kg, humus 3kg, wooden calcium sulfonate 3kg, alkyl benzene sulphonate 1kg, lauryl sodium sulfate 2kg, CMC 2kg, bentonite are mended to 100kg.Mixed by above-mentioned recipe ingredient, 4.5% Imidacloprid ethiprole humus granule is made in pulverizing granulation, drying, screening
Embodiment 4
8% Imidacloprid ethiprole humus granule
Preparation method: Imidacloprid 1kg, ethiprole 2kg, humus 5kg, polyvinylpyrrolidone 1kg, alkylbenzene polyoxyethylene ether phosphate 2kg, modified starch 4.5kg, potter's clay 15kg, kaolin complements to 100kg.Mixed by above-mentioned recipe ingredient, 8% Imidacloprid ethiprole humus granule is made in pulverizing granulation, drying, screening
Embodiment 5
10% Imidacloprid ethiprole humus granule
Preparation method: Imidacloprid 3kg, ethiprole 2kg, humus 5kg, sodium alginate 4kg, phenethyl phenol polyethenoxy base ether phosphate 3kg, gum Arabic 5kg, kaolin complements to 100kg.Mixed by above-mentioned recipe ingredient, 10% Imidacloprid ethiprole humus granule is made in pulverizing granulation, drying, screening
Embodiment 6
7% Imidacloprid ethiprole humus granule
Preparation method: Imidacloprid 2.5kg, ethiprole 1.5kg, humus 3kg, wooden calcium sulfonate 5kg, alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate 5kg, methylcellulose 2kg, white carbon 15kg, bentonite complements to 100kg, is mixed by above-mentioned recipe ingredient, and 7% Imidacloprid ethiprole humus granule is made in pulverizing granulation, drying, screening
The method adopting Toxicity Determination and field trial to combine below is described further technique effect of the present invention.First by Toxicity Determination, the synergy ratio after clear and definite three kinds of medicaments are composite by a certain percentage, on this basis, then carries out field control effectiveness test.
One, indoor joint toxicity measuring test
The synergistic effect of pharmacy mix is evaluated according to the co-toxicity coefficient method (CTC) of SunJohnson (1960), namely CTC≤80 are antagonism, 80<CTC<120 is summation action, and CTC >=120 are synergistic effect.
Imidacloprid, ethiprole, humus and mixture preparation thereof are tested the Toxicity Determination of sugarcane sugarcane tortoise larva:
Test Imidacloprid, ethiprole and humus three kinds of single doses medicament in contrast, and with the formula rate preparation mixture 1# ~ mixture 6# described in embodiment 1 to embodiment 6:
Mixture 1#: Imidacloprid: ethiprole: humus=1:0.5:1
Mixture 2#: Imidacloprid: ethiprole: humus=1:3:2
Mixture 3#: Imidacloprid: ethiprole: humus=0.5:1:3
Mixture 4#: Imidacloprid: ethiprole: humus=1:2:5
Mixture 5#: Imidacloprid: ethiprole: humus=3:2:5
Mixture 6#: Imidacloprid: ethiprole: humus=2.5:1.5:3
To test with sugarcane sugarcane tortoise 3 instar larvae as examination worm, blank be set, adopt dip method carry out toxicity test and do statistical analysis Imidacloprid, ethiprole, humus and above-mentioned 6 mixtures, final statistics as
following table instituteshow:
table 1the indoor joint toxicity measuring result of the test statistics of Imidacloprid, ethiprole and humus
Toxicity Determination result shows, in embodiment 1 ~ 6, Imidacloprid, ethiprole and humus are all greater than 120 according to 6 the different co-toxicity coefficients of ratio mixture to sugarcane sugarcane tortoise, wherein the co-toxicity coefficient of mixture 1#, mixture 4# is all greater than 200, illustrates that these three kinds of active ingredient mixtures have obvious synergistic function.
Two, field medicine effect test
(1) test process is arranged
The 2.5% Imidacloprid ethiprole humus granule that embodiment 1 is made into, as product experiment process 1, mu consumption 2kg.3% Imidacloprid granule, 2% ethiprole granule and 5% humus granule are compared test called after process 2, process 3, process 4, mu consumption is respectively 2.5kg, 3kg and 5kg.
More than processing dispenser when sugarcane is sowed, evenly spreading fertilizer over the fields in planting in ditch after mixing with the dry fine sand of 1:10 by mu dosage again, timely earthing.
(2) result of the test
Within after dispenser 60 days, carry out result investigation in sugarcane sugarcane tortoise harm end, investigate every community total seedling number and sugarcane sugarcane tortoise and cause harm and cause withered heart seedling number, calculate withered heart rate and control efficiency.Withered heart rate=withered heart seedling number/total seedling number * 100%.Control efficiency=(the withered heart rate in withered heart rate-applying area, check plot) withered heart rate * 100% in/check plot.Result of the test is as follows:
table 2: the field control effectiveness test of each process chemical control sugarcane sugarcane tortoise
Process |
Number/the strain of process seedling |
Withered heart seedling number/strain |
Withered heart rate/% |
Preventive effect/% |
Process 1 |
625 |
21 |
3.36 |
83.84 |
Process 2 |
632 |
52 |
8.23 |
60.42 |
Process 3 |
664 |
64 |
9.64 |
53.63 |
Process 4 |
624 |
75 |
12.02 |
42.18 |
Blank |
635 |
132 |
20.79 |
0.00 |
From
upper tablefield control effectiveness test tables of data can draw, the preventive effect of 2.5% Imidacloprid ethiprole humus granule to sugarcane sugarcane tortoise is obvious, Imidacloprid, ethiprole, humus have obvious synergistic function, and compound drug will be used alone effect apparently higher than single dose to the effect of sugarcane tortoise.