CN111226942A - Agricultural acaricidal composition and application thereof - Google Patents
Agricultural acaricidal composition and application thereof Download PDFInfo
- Publication number
- CN111226942A CN111226942A CN202010166192.9A CN202010166192A CN111226942A CN 111226942 A CN111226942 A CN 111226942A CN 202010166192 A CN202010166192 A CN 202010166192A CN 111226942 A CN111226942 A CN 111226942A
- Authority
- CN
- China
- Prior art keywords
- agricultural
- fluazinam
- fenoxycarb
- agent
- acaricidal composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides an agricultural acaricidal composition and application thereof, belongs to the field of acaricides, and the acaricidal composition is prepared by compounding effective components fluazinam and fenoxycarb and has the characteristics of high acaricidal activity, long lasting time, low toxicity, environmental protection and the like. The acaricidal composition comprises active ingredients of fluazinam and fenoxycarb, wherein the mass ratio of the fluazinam to the fenoxycarb is 10:1-1: 10. The invention can expand the control range of the medicament by reasonably compounding fluazinam and fenoxycarb, has the effects of improving the medicament effect and delaying the medicament resistance, can be used as an agricultural acaricide, can be used for controlling mite pests of crops, has obvious effects on panonychus citri, two-spotted spider mites of apples and red spider mites of oranges and has wide popularization and application prospects.
Description
Technical Field
The invention belongs to the field of pesticides, particularly relates to the field of agricultural acaricides, and particularly relates to an agricultural acaricide composition and application thereof.
Background
Fluazinam is a broad-spectrum and efficient protective bactericide, is very effective to alternaria, phytophthora, plasmopara, sclerotinia and cladosporium, has a good effect on botrytis cinerea resistant to benzimidazole and dicarboximide bactericides, and has a good effect on rice damping-off caused by rhizopus. The control mechanism of fluazinam is to block the energy synthesis of mites, and the fluazinam has good effects of killing eggs and young mites on various plant mites. The mite eggs discolor and lose activity after contacting the liquid medicine, and can not be normally hatched, and the lasting period is long.
Fenoxycarb belongs to non-terpene carbamate, has stomach toxicity, contact killing effect and insect growth regulation effect, is mainly used for preventing and controlling stored pests, but has non-nervous insecticidal effect, shows that the fenoxycarb has strong juvenile hormone activity on various insects, can kill eggs, inhibit metamorphosis in an adult stage and molting in a larval stage, can cause death in a later stage or a pupal stage of the larva, is particularly effective on mites, has long duration and is harmless to beneficial organisms.
In practical application, the application of chemical agents is the most effective means for controlling plant diseases and insect pests, but a series of problems such as agent residue, environmental pollution and the like are easily caused by continuously applying single chemical acaricide with high dosage for a long time, and reasonable chemical acaricide compounding or mixing has the effect of expanding the acaricidal spectrum and is one of the most effective methods for solving the problems. The price of the new acaricide is continuously rising, and compared with the new acaricide, the new acaricide is more efficient, less toxic and less residual in development and research, because the new acaricide has less investment and short development period, the new acaricide is valued at home and abroad, and the development and development strength is increased in many cases.
Disclosure of Invention
The invention aims to provide an agricultural acaricidal composition and application thereof, wherein the composition is prepared by compounding fluazinam and fenoxycarb serving as active ingredients, and has the characteristics of high acaricidal activity, long lasting time, low toxicity, environmental friendliness and the like.
The invention provides an agricultural acaricidal composition which comprises an active ingredient and an auxiliary ingredient, wherein the active ingredient comprises fluazinam and fenoxycarb, and the mass ratio of the fluazinam to the fenoxycarb is 10:1-1: 10.
Preferably, the mass ratio of the fluazinam to the fenoxycarb serving as active ingredients is 1:1-1: 3.
Preferably, the active ingredients of fluazinam and fenoxycarb account for 1 to 80 weight percent of the agricultural acaricidal composition.
Preferably, the fluazinam and fenoxycarb serving as active ingredients account for 5-80 wt% of the agricultural acaricidal composition.
Preferably, the composition further comprises auxiliary components, wherein the auxiliary components comprise carriers and auxiliary agents.
Preferably, the carrier is at least one of water, a solvent and a filler, and the auxiliary agent at least comprises a surfactant; the surfactant is selected from one or more of an emulsifier, a dispersant, a wetting agent or a penetrant; the auxiliary agent also comprises one or more of an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent or a defoaming agent.
Preferably, the pesticide-acaricide is in the form of wettable powder, water suspending agent, oil suspending agent or water dispersible granule.
The invention also provides an agricultural acaricide, which comprises the agricultural acaricide composition of any technical scheme.
The invention also provides an agricultural acaricidal composition according to any one of the technical schemes or application of the agricultural acaricide in the technical scheme to control mite pests of crops.
Preferably, the crop mite pest includes at least one of panonychus citri, tetranychus apple and panonychus citri.
Compared with the prior art, the invention has the advantages and positive effects that:
1. the agricultural acaricidal composition provided by the invention has the advantages that the action mechanisms of the active ingredients are different, the action sites are increased, the compound acaricidal composition prolongs the service life of the pesticide, delays the generation of the drug resistance of the pest mites and enlarges the acaricidal range;
2. the agricultural acaricidal composition provided by the invention has obvious synergistic effect, quick action, high knockdown speed and good effect on pest mites, eggs, larvae and nymphs thereof;
3. the agricultural acaricidal composition provided by the invention has the advantages of obviously improved pesticide effect, prolonged duration, effectively reduced field dosage, reduced production and use cost, and reduced pollution of pesticide residue to the environment.
4. The agricultural acaricidal composition provided by the invention is safe to human and livestock, good in environmental compatibility, simple in preparation process and suitable for large-area popularization and use.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides an agricultural acaricidal composition which comprises an active ingredient and an auxiliary ingredient, wherein the active ingredient comprises fluazinam and fenoxycarb, and the mass ratio of the fluazinam to the fenoxycarb is 10:1-1: 10. Within the above range, the miticidal effect of the active ingredient is exhibited as a good addition or synergistic effect, and for example, the mass ratio of the active ingredient fluazinam to fenoxycarb may be 5:1, 1:1, 1:3, 1:4, 1:5, or the like. However, it is understood that, depending on the selection of the concentration of the active ingredient during the use, the ratio of the fluazinam to fenoxycarb may be any value within the above range of the mass ratio as required by those skilled in the art.
In a preferred embodiment, the mass ratio of the effective components fluazinam and fenoxycarb is preferably 1:1-1: 3. For example, the mass ratio of the fluazinam to fenoxycarb as the effective components can be 1:1.5, 1:2, 1:2.5 and the like. In the above preferred ratio, a good miticidal effect can be obtained, and those skilled in the art can select any numerical ratio within the above mass ratio range to prepare the miticidal composition.
In a preferred embodiment, the active ingredients fluazinam and fenoxycarb account for 1-80% by weight of the agricultural acaricidal composition, and 5-80% by weight of the agricultural acaricidal composition is preferred. It will be appreciated that the specific amount may be determined according to the area and type of application required, for example, the weight of fluazinam and fenoxycarb may be 10%, 15%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, etc., or any other value within the above-defined range.
In a preferred embodiment, the auxiliary components include carriers and auxiliaries. The carrier is at least one of water, a solvent and a filler, and specifically, the solvent is a mixture consisting of one or more of N, N-dimethylformamide, cyclohexanone, toluene, xylene, dimethyl sulfoxide, methanol, ethanol, trimethylcyclohexanone, N-octyl pyrrolidone, ethanolamine, triethanolamine, isopropylamine, N-methyl pyrrolidone, propanol, butanol, ethylene glycol, diethylene glycol, butyl ether, ethanolamine, ethyl acetate or acetonitrile; the filler is selected from one or a mixture of more of kaolin, diatomite, bentonite, attapulgite, white carbon black, starch or light calcium carbonate; the auxiliary agent at least comprises a surfactant, and other functional auxiliary agents such as an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent, a defoaming agent and the like can be added according to different use occasions and requirements.
In a preferred embodiment, the surfactant is selected from one or more of an emulsifier, a dispersant, a wetting agent or a penetrant, and the surfactant can be nonionic or anionic, and can also be used in combination of the two types.
The emulsifier is selected from OP series phosphate (nonylphenol polyoxyethylene ether phosphate), 600# phosphate (phenylphenol polyoxyethylene ether phosphate), styrene polyoxyethylene ether ammonium sulfate, magnesium alkyldiphenyl ether disulfonate, triethanolamine salt, Nostoc 400# (benzyldimethylphenol polyoxyethylene ether), Nostoc 700# (alkylphenol formaldehyde resin polyoxyethylene ether), Ningru 36# (phenethylphenol formaldehyde resin polyoxyethylene ether), agricultural cream 1600# (phenethyl phenol polyoxyethylene polypropylene ether), ethylene oxide-propylene oxide block copolymer, OP series (nonylphenol polyoxyethylene ether), BY series (castor oil polyoxyethylene ether), agricultural cream 33# (alkylaryl polyoxyethylene polyoxypropylene ether), span series (sorbitan monostearate), Tween series (sorbitan fatty acid ester polyoxyethylene ether) or AEO series (fatty alcohol polyoxyethylene ether).
The dispersing agent is selected from one or a mixture of a plurality of polycarboxylate, lignosulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, calcium alkylbenzene sulfonate, naphthalene sulfonic acid formaldehyde condensate sodium salt, alkylphenol polyoxyethylene ether, fatty amine polyoxyethylene ether, fatty acid polyoxyethylene ether or glycerin fatty acid ester polyoxyethylene ether.
The wetting agent is selected from one or more of sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, nekal BX, wetting penetrant F, saponin powder, silkworm excrement or soapberry powder.
The penetrating agent is selected from one or a mixture of more of penetrating agent JFC (fatty alcohol-polyoxyethylene ether), penetrating agent T (diisooctyl maleate sulfonate), azone and organic silicon.
In a preferred embodiment, the auxiliary agent can also be added with one or more of an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent or an antifoaming agent according to different application occasions and requirements.
The thickening agent is selected from one or a mixture of more of gelatin, sodium carboxymethylcellulose, hydroxyethyl cellulose, sodium polyacrylate, modified starch, xanthan gum, bentonite, silicon dioxide and magnesium aluminum silicate.
The antifreezing agent is a mixture consisting of one or more of ethylene glycol, propylene glycol, glycerol or urea.
The defoaming agent is selected from one or a mixture of more of silicone oil, silicone compounds, C10-C20 saturated fatty acid compounds or C8-C10 fatty alcohol compounds.
The disintegrating agent is selected from one or more of bentonite, urea, ammonium sulfate, aluminum chloride, low-substituted hydroxypropyl cellulose, lactose, citric acid, succinic acid or sodium bicarbonate.
The stabilizer is selected from one or more of epoxidized soybean oil, epichlorohydrin, BHT, ethyl acetate and triphenyl phosphate.
In a preferred embodiment, the pesticide-miticide is in the form of wettable powder, water suspension, oil suspension or water dispersible granule.
The embodiment of the invention also provides an application of the agricultural acaricidal composition according to any one of the embodiments or the agricultural acaricide according to the embodiments in controlling crop mite pests, wherein in a preferred embodiment, the crop mite pests comprise at least one of panonychus citri, tetranychus ulmi and red spider mites, and especially the killing effect on red spider mites is better.
In order to more clearly and specifically describe the agricultural acaricidal composition and the application thereof provided by the embodiment of the present invention, the following description will be made with reference to the specific embodiment. The effect test of the invention adopts a mode of combining indoor toxicity and field efficacy. Unless otherwise specified, the following proportions are mass fraction ratios.
1. Wettable powder
The preparation method comprises the following steps: according to the formula proportion of the embodiment, the effective components of fluazinam and fenoxycarb are added into a carrier, and a surfactant and other functional auxiliaries are added into the carrier, mixed, subjected to air flow crushing and then mixed to prepare the wettable powder.
Example 1 (49.5% fluazinam fenoxycarb wettable powder) 10:1
The formula is as follows: 45% of fluazinam; fenoxycarb, 4.5%; wetting agent sodium dodecyl sulfate, 2%; dispersant calcium lignosulfonate, 8%; 18 percent of filler white carbon black, and the balance of filler kaolin.
Example 2 (64% fluazinam fenoxycarb wettable powder) 7:1
The formula is as follows: fluazinam, 56%; 8 percent of fenoxycarb; wetting agent sodium dodecyl sulfate, 2%; dispersant calcium lignosulfonate, 8%; 18 percent of filler white carbon black, and the balance of filler kaolin.
2. Aqueous suspension agent
The preparation method comprises the following steps: according to the formula proportion, the effective components of fluazinam, fenoxycarb, a surfactant and other functional auxiliaries are sequentially placed in a reaction kettle, water is added for uniform mixing, and the product is obtained after high-speed shearing, wet-method sanding and homogeneous filtration.
Example 3 (28% fluazinam fenoxycarb aqueous suspension) 3:1
The formula is as follows: fluazinam, 21%; 7 percent of fenoxycarb; emulsifier Nongru NP-10, 2%; dispersant polycarboxylate, 3.5%; the thickening agent is selected from xanthan gum and aluminum magnesium silicate, and the using amounts are 0.13% and 1.3% respectively; 5% of antifreeze glycol; 0.2 percent of defoaming agent silicone compound; water and the balance.
Example 4 (20% fluazinam fenoxycarb aqueous suspension) 1:1
The formula is as follows: fluazinam, 10%; fenoxycarb, 10%; emulsifier Nongru NP-10, 2%; dispersant polycarboxylate, 3%; the thickening agent is selected from xanthan gum and aluminum magnesium silicate, and the using amounts are 0.1% and 1.5% respectively; 5% of antifreeze glycol; 0.2 percent of defoaming agent silicone compound; water and the balance.
3. Oil suspending agent
The preparation method comprises the following steps: according to the formula proportion, the effective components of fluazinam, fenoxycarb, a surfactant and other functional auxiliaries are sequentially placed in a reaction kettle, oil is added and the mixture is uniformly mixed, and the product is obtained through high-speed shearing, wet sanding and homogeneous filtering.
Example 5 (20% fluazinam fenoxycarb aqueous suspension) 1:3
The formula is as follows: 5% of fluazinam; fenoxycarb, 15%; emulsifier agricultural emulsion BY-125, 7%; oil dispersant polycarboxylate, 8%; the thickening agent is organic bentonite, and the use amount of the organic bentonite is 1.6 percent respectively; oil, the balance.
Example 6 (24% fluazinam fenoxycarb aqueous suspension) 1:5
The formula is as follows: 4% of fluazinam; fenoxycarb, 20%; emulsifier agricultural emulsion BY-125, 7%; oil dispersant polycarboxylate, 8%; the thickening agent is organic bentonite, and the use amount of the organic bentonite is 1.6 percent respectively; oil, the balance.
4. Water dispersible granule
The preparation method comprises the following steps: adding effective components fluazinam and fenoxycarb into a carrier according to the formula proportion of an embodiment, adding a surfactant and other functional auxiliaries, mixing, carrying out jet milling, adding 10-25% of water, kneading, granulating, drying and screening to obtain water dispersible granules; or spraying water to the pulverized powder in a boiling granulator, granulating, drying, and sieving to obtain water dispersible granule.
Example 7 (80% fluazinam fenoxycarb water dispersible granule) 1:7
The formula is as follows: fluazinam, 10%; 70 percent of fenoxycarb; wetting agent sodium dodecylbenzene sulfonate, 3%; 8% of dispersant alkyl naphthalene sulfonate formaldehyde condensate; attapulgite is filled, and the balance is.
Example 8 (77% fluazinam fenoxycarb water dispersible granule) 1:10
The formula is as follows: 7% of fluazinam; 70 percent of fenoxycarb; wetting agent sodium dodecylbenzene sulfonate, 3%; 8% of dispersant alkyl naphthalene sulfonate formaldehyde condensate; attapulgite is filled, and the balance is.
1. Indoor combined toxicity bioassay test
An indoor combined toxicity bioassay test is adopted to verify whether the synergistic effect is achieved after the fluazinam and the fenoxycarb are compounded.
1.1 test agent
95% of fluazinam raw material medicine and 95% of fenoxycarb raw material medicine.
1.2 test targets
The test insects are panonychus citri collected in the field, and are bred, bred and hatched in the fifth generation indoors.
1.3 Experimental procedures
1.3.1 preparation of the medicament
Selecting female nymphs which are consistent in size and bright red in body color, adhering the backs of the tested nymphs to glass slides pasted with double-sided adhesive tapes by using a writing brush, diluting the concentration range of each glass slide, respectively dissolving two raw medicines in acetone on the basis of pre-test, diluting the two raw medicines into 5 concentration gradient liquid medicines by using 0.1% Tween 80 aqueous solution, and placing the liquid medicines in a beaker for later use.
1.3.2 pharmaceutical treatment
The test method comprises the following steps: immersing the glass slide adhered with the test mites in the mixed liquid medicine for 5 seconds, treating for 4 times repeatedly, taking out, obliquely placing on the edge of a porcelain plate, drying, placing in a glass slide box, placing in a light culture box with the temperature of 25 +/-1 ℃ and the humidity of 70% -80% without covering, illuminating for 10 hours every day, and detecting the number of the dead mites under a mirror after 24 hours (the dead mites are detected by touching the feet of the glass slide with a fine brush, and the non-responders die).
1.3.3 data statistics and analysis
The corrected mortality for each treatment was calculated according to equation (1) based on survey statistics. And the co-toxicity coefficient (CTC value) of the mixture was calculated by Sun cloud Peter method with reference to NY/T1154.7-2006. If the control mortality rate is less than 5%, the control mortality rate is not corrected, the control mortality rate is between 5% and 20%, the control mortality rate is corrected according to the formula (2) and is greater than 20%, and the test needs to be redone.
In the formula: p1-mortality in percent (%); k represents the number of dead insects and the unit is head; n- - -represents the total number of heads processed;
in the formula: p2-correct mortality; pt-treatment mortality; p0-blank control mortality.
Respectively establishing virulence regression equations with logarithmic value of medicament concentration (mg/L) as independent variable x and several values of corrected mortality as dependent variable y, and calculating LC of single preparation and mixed preparation of each proportion by DPS software50The co-toxicity coefficient (CTC) was calculated according to the Sun Yunpei method and the results are shown in Table 1. The co-toxicity coefficient CTC is calculated as follows: (Fluopyrafuranone is used as a standard medicament, and the virulence index is 100):
measured toxicity index (ATI) ═ standard medicament LC50Test agent LC50)×100
Theoretical virulence index (TTI) ═ A agent ATI × percentage of A in the mixture + B agent ATI × percentage of B in the mixture
Cotoxicity coefficient (CTC) ═ (ATI/TTI) x 100
The CTC is synergistic when the CTC is more than 120, antagonistic when the CTC is less than 80, and additive when the CTC is 80-120.
TABLE 1 indoor toxicity test results of fluazinam and fenoxycarb in different ratios to panonychus citri
As can be seen from table 1, fluazinam and fenoxycarb are present in the range of 10:1-1:10, the co-toxicity coefficient is more than 120, the synergistic effect is shown, wherein the fluazinam-fenoxycarb is 1:3, the synergistic effect is most obvious, the co-toxicity coefficient is 162, and the synergistic effect is obvious.
2. Test of field drug effect
By adopting a field pesticide effect test method, the synergistic effect of the fluazinam and fenoxycarb compound on mite control is further proved when the fluazinam and fenoxycarb compound is used in the field.
2.1 field test for controlling Tetranychus urticae Koch
2.1.1 test methods
The test is carried out in an apple orchard of an experimental base of a tobacco terrace city in Shandong province, and the plain of the orchard is provided with clay loam and the organic matter content is about 0.9 percent. The variety of the test tree is 16-year-old red Fuji, and the row spacing is 3mx3 m. The whole plant is sprayed, the liquid spray amount in the plot is applied at 675 liters per hectare, and only one time of the pesticide is sprayed. The orchard management level is general, and the fruit trees in the test area grow basically consistent. The pesticide application machine is a guard WS-16 manual sprayer, the spray head is a conical spray head, the working pressure is 0.2-0.4MPa, the spray amount is 0.65-0.88L/min, conventional spraying is carried out, and the uniform and thorough spraying is required during pesticide spraying.
2.1.2 survey time and methods
Tender tips are marked in east, west, south, north and middle 5 directions of each tree in each district, the number of active mites on 20 leaves is randomly investigated, the leaves are directly observed by holding a magnifier, the base number of the mites is investigated before the application of the agent, the number of the live mites in each district is investigated respectively at 2d, 7d and 14d after the application of the agent, the rate of decline of the mites is calculated, and the rate of decline and the prevention effect are calculated by the following formula compared with the rate of decline of a control group.
2.1.3 method of calculating drug efficacy
Percent reduction of population (%) is (number of mites before application-number of mites after application)/number of mites before application × 100
Control effect (%) (treatment area mite oral decline rate-control area mite oral decline rate)/(100-control area mite oral decline rate) × 100.
2.1.4 phytotoxicity investigation method
The growth of apple trees is observed at 1, 3, 7 and 14 days after the pesticide is applied, and the pesticide is not harmed to the apple trees by visual inspection.
2.1.5 field drug effect test results
DPS software is adopted for data processing, the control effect is calculated, the control effect is evaluated, and the result is shown in a table 2.
Table 2 experimental results of treating agent for controlling tetranychus urticae koch
It can be seen from table 2 that the control effect of the mixed pesticide with different proportions on tetranychus urticae koch is better than that of the control pesticides 40% fluazinam SC and 3% fenoxycarb EC although the dosages are different. According to visual observation in the field test process, crops grow normally within a certain test dosage range, and each treatment agent does not cause phytotoxicity to apple trees, which indicates that the apple trees are safe.
2.2 prevention and control of Red spider in the field
2.2.1 test methods
The test is carried out in a citrus garden of experimental research of Guangxi Guilin company, and the variety is the Wenzhou tangerine and has been planted for 25 years. Spraying pesticide in the morning of red spider peak of citrus, diluting the reagent to be tested with water according to the use concentration, spraying the tree crown with a Weishi WS-16 type manual sprayer under the working pressure of 0.2-0.4MPa and the flow rate of 0.36-0.68L/min by a conventional method, spraying water on the front and back surfaces of citrus leaves until a small amount of water drops on the leaves, and spraying clean water with the same amount as that of a control group.
2.2.2 methods of investigation
Population density surveys were conducted at 2d, 7d, 14d and 21d before and after application, respectively, and the number of 4 varroa mites east, west, south and north of the tree in each plot.
2.2.3 method of calculating drug efficacy
The oral cavity decline rate (%) is (number of active mites before the drug-number of active mites after the drug)/number of active mites before the drug × 100
Control effect (%) (treatment area oral cavity decline rate-control oral cavity decline rate)/(100-control area oral cavity decline rate) × 100.
2.2.4 phytotoxicity investigation method
1 branch tip of each mandarin orange is observed at 3, 7, 14 and 21 days after the application of the pesticide, 5 leaves are marked on each tip, the growth condition of the active mandarin oranges on 20 leaves at 4 tips is recorded in a total survey, and the pesticide is not harmful to the mandarin oranges by visual inspection.
2.2.5 field drug effect test results
DPS software is adopted for data processing, the control effect is calculated, the control effect is evaluated, and the result is shown in a table 3.
Table 3 field test results of treatment agents for controlling citrus red mites
According to observation in the test process, the citrus grows normally within the range of the tested dosage, and different treatment agents do not have phytotoxicity to the citrus, which indicates that the agents are safe to the citrus. It can be seen from table 3 that fluazinam and fenoxycarb are mixed in different proportions and in different dosages, but the control effect on citrus red mites after application is much better than that of the control medicaments 40% fluazinam SC, 3% fenoxycarb EC and a blank control group, and the control effect after 14 days is more than 90% except for example 1.
Through the indoor activity determination and the field efficacy test, the respective dosage of fluazinam and fenoxycarb can be reduced after the fluazinam and fenoxycarb are compounded, the control effect on mites is greatly improved, the growth of crops is facilitated, the quality of the crops is improved, the components are not simply added in activity, the generation of drug resistance of the mites is delayed, the safety and the environmental protection are realized, the safety to the crops is realized under the test dosage, and the growth is not influenced. Fluazinam and fenoxycarb are ideal combinations of compound medicaments. Compared with a single agent, the acaricidal composition has the advantages of small dosage, high prevention and treatment effect, greatly improved effective period and quick response, and has important significance for prevention and treatment of plant diseases and insect pests and protection of local ecological environment.
Claims (10)
1. The agricultural acaricidal composition is characterized by comprising an active ingredient and an auxiliary ingredient, wherein the active ingredient comprises fluazinam and fenoxycarb, and the mass ratio of the fluazinam to the fenoxycarb is 10:1-1: 10.
2. An agricultural acaricidal composition according to claim 1, wherein the mass ratio of the active ingredients fluazinam to fenoxycarb is 1:1 to 1: 3.
3. An agricultural acaricidal composition according to claim 1 or 2, characterized in that the active ingredients fluazinam and fenoxycarb are present in the agricultural acaricidal composition in an amount of 1% to 80% by weight.
4. An agricultural acaricidal composition according to claim 3, wherein the active ingredients fluazinam and fenoxycarb account for 5-80% by weight of the agricultural acaricidal composition.
5. An agricultural acaricidal composition according to claim 1, wherein the auxiliary ingredients comprise carriers and adjuvants.
6. An agricultural acaricidal composition according to claim 5 wherein said carrier is at least one of water, solvent and filler, and said adjuvant comprises at least one surfactant; the surfactant is selected from one or more of an emulsifier, a dispersant, a wetting agent or a penetrant; the auxiliary agent also comprises one or more of an antifreezing agent, a thickening agent, a stabilizing agent, a disintegrating agent or a defoaming agent.
7. An agricultural miticidal composition according to claim 3 or claim 6, wherein the agrochemical miticide is in the form of a wettable powder, a water suspension, an oil suspension or a water dispersible granule.
8. An agricultural acaricide comprising the agricultural acaricide composition according to any one of claims 1 to 7.
9. Use of the agricultural acaricidal composition according to any one of claims 1 to 7 or the agricultural miticide according to claim 7 for controlling mite pests in crops.
10. The use according to claim 9, wherein the crop mite pest comprises at least one of panonychus citri, tetranychus ulmi, and tetranychus citri.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166192.9A CN111226942A (en) | 2020-03-11 | 2020-03-11 | Agricultural acaricidal composition and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010166192.9A CN111226942A (en) | 2020-03-11 | 2020-03-11 | Agricultural acaricidal composition and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111226942A true CN111226942A (en) | 2020-06-05 |
Family
ID=70868303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010166192.9A Pending CN111226942A (en) | 2020-03-11 | 2020-03-11 | Agricultural acaricidal composition and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111226942A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927804A (en) * | 1982-08-05 | 1984-02-14 | Ishihara Sangyo Kaisha Ltd | Agricultural and horticultural germicidal composition |
| JPS61189204A (en) * | 1985-02-18 | 1986-08-22 | Ishihara Sangyo Kaisha Ltd | Acaricide agent |
| JPS62403A (en) * | 1985-06-25 | 1987-01-06 | Ishihara Sangyo Kaisha Ltd | Fungicidal composition for agricultural and horticultural use |
| CN108835115A (en) * | 2018-08-15 | 2018-11-20 | 海利尔药业集团股份有限公司 | A kind of miticide composition containing fluazinam and Aphox |
| CN109349274A (en) * | 2018-12-11 | 2019-02-19 | 江阴苏利化学股份有限公司 | A kind of miticide composition containing fluazinam and diafenthiuron |
| CN110024791A (en) * | 2019-05-21 | 2019-07-19 | 青岛东生药业有限公司 | Complex insecticidal composition and its application |
| CN110100825A (en) * | 2019-05-21 | 2019-08-09 | 青岛润生农化有限公司 | Fruit insecticide composition and its application |
-
2020
- 2020-03-11 CN CN202010166192.9A patent/CN111226942A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927804A (en) * | 1982-08-05 | 1984-02-14 | Ishihara Sangyo Kaisha Ltd | Agricultural and horticultural germicidal composition |
| JPS61189204A (en) * | 1985-02-18 | 1986-08-22 | Ishihara Sangyo Kaisha Ltd | Acaricide agent |
| JPS62403A (en) * | 1985-06-25 | 1987-01-06 | Ishihara Sangyo Kaisha Ltd | Fungicidal composition for agricultural and horticultural use |
| CN108835115A (en) * | 2018-08-15 | 2018-11-20 | 海利尔药业集团股份有限公司 | A kind of miticide composition containing fluazinam and Aphox |
| CN109349274A (en) * | 2018-12-11 | 2019-02-19 | 江阴苏利化学股份有限公司 | A kind of miticide composition containing fluazinam and diafenthiuron |
| CN110024791A (en) * | 2019-05-21 | 2019-07-19 | 青岛东生药业有限公司 | Complex insecticidal composition and its application |
| CN110100825A (en) * | 2019-05-21 | 2019-08-09 | 青岛润生农化有限公司 | Fruit insecticide composition and its application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116210712B (en) | Insecticidal composition containing diafenthiuron and application thereof | |
| CN114916555B (en) | Application of pesticide composition containing bistrifluron in controlling plant pest mites | |
| CN116035014A (en) | Pesticide composition containing cyromazine | |
| CN114052037A (en) | Acaricidal composition containing bistrifluron and etoxazole and application thereof | |
| CN112568224B (en) | Insecticidal composition containing chlorfenapyr flubendiamide and diafenthiuron | |
| CN111226942A (en) | Agricultural acaricidal composition and application thereof | |
| CN111264535A (en) | Agricultural acaricidal composition and application thereof | |
| CN111937888A (en) | Insecticidal composition and application thereof | |
| CN112219852A (en) | Application of insecticidal composition containing nicotinamide compound in controlling honeysuckle insect pests | |
| CN112753710A (en) | Insecticidal composition containing propiconate and dinotefuran | |
| CN112136819A (en) | Bactericidal composition containing fenpicoxamid and penflufen | |
| CN111165503A (en) | Pesticide composition containing fluxapyroxad and rotenone | |
| CN111903700B (en) | Insecticidal composition containing cycloartemia and diafenthiuron | |
| CN115843811B (en) | Mite-killing composition and application thereof | |
| CN112514910B (en) | Insecticidal composition containing sulfoxaflor and bistrifluron | |
| CN108849963A (en) | A kind of Pesticidal combination containing novaluron and Fenpropathrin | |
| CN114586789B (en) | Mite-killing composition and application thereof | |
| CN115413665B (en) | Pesticide composition containing spiromesifen and application thereof | |
| CN115918663A (en) | Bactericide composition and application thereof in preventing and treating crop diseases | |
| CN111937896B (en) | Insecticidal composition containing bistrifluron | |
| CN107410350B (en) | Agricultural insecticidal composition and application thereof | |
| CN112998027A (en) | Insecticidal composition containing sulfoxaflor and cyclic bromantraniliprole | |
| CN115251060A (en) | Agricultural insecticidal composition and application thereof | |
| CN111374137A (en) | Insecticidal composition containing tebuconazole and chlorfenapyr | |
| CN117770267A (en) | Mite-killing composition and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200605 |