CN103210942B - Pesticide composition - Google Patents
Pesticide composition Download PDFInfo
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- CN103210942B CN103210942B CN201310131028.4A CN201310131028A CN103210942B CN 103210942 B CN103210942 B CN 103210942B CN 201310131028 A CN201310131028 A CN 201310131028A CN 103210942 B CN103210942 B CN 103210942B
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- diclosulam
- nicosulfuron
- suspending agent
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Abstract
The invention relates to a pesticide composition which consists of the active ingredients of diclosulam and nicosulfuron, wherein the weight ratio of the diclosulam and the nicosulfuron (1:50)-(50:1). The composition can be prepared into dispersible oil suspension, is mainly used for preventing and treating annual gramineae and broad leaf weeds in a corn field, is obvious in weeding effect, long in lasting period and safe to crops and has the obvious synergistic effect.
Description
Technical field
The invention belongs to technical field of pesticide, specifically contain the composition pesticide of diclosulam and nicosulfuron.
Background technology
Diclosulam (diclosulam) is the new high-efficiency weed killer herbicide of planting soil processing before a kind of suitable soybean, Peanut Fields seedling, and this composition is acetolactate synthestase (ALS) inhibitor.Can be absorbed fast by root and cauline leaf by weeds, and play a role.This composition is mainly used in preventing and kill off broad leaved weed.
Nicosulfuron (nicosulfuron) is systemic herbicide, can be weeds cauline leaf and root absorption, in plant corpus, conduct subsequently, cause sensitive plant growth retardation, cauline leaf chlorisis, withered gradually, generally death in 20-25 days, but time that need be longer to some perennial weed in the situation that temperature is lower.Dispenser good drug efficacy before 4 leaf phases after bud, this medicine has the front activity of weeding of bud simultaneously.
Think by our long-term field efficacy experiment, using with between some weed killer herbicide can overcome or alleviate chemical injury of crops.Meanwhile, because various weed killer herbicides are because of the difference of its chemical composition, physicochemical property, herbicide scope is also different.Some weed killer herbicide herbicide scope is narrower, but has unique action effect; The herbicidal spectrum of some weed killer herbicide is very wide, can prevent and treat the multiple weeds in field simultaneously.Field trial shows, uses for a long time single herbicide not only easily to produce resistance and poisoning, also can cause larger impact to soil environment.Weed killer herbicide composite is widely regarded as one of important measures that weed killer herbicide rationally uses, and can reduce the generation of resistance after composite, reduces the poisoning of weed killer herbicide to economic crops, reduces the impact on soil, thereby increases economic efficiency.Therefore we are by composite to diclosulam and two kinds of active ingredients of nicosulfuron, to reaching above-mentioned effect.
Dispersible oil-suspending agent and refer to that one or more pesticide active ingredients form high dispersive, stable suspension system in non-water system dispersion medium.This formulation has following characteristics: the first, and the agricultural chemicals that some oil is very strong to some lipophilies, particularly insoluble weed killer herbicide in oil, makes oil suspending agent, can play synergistic effect; The second, can improve permeability and the interior absorption of active ingredient; The 3rd, for part easy active ingredient of degraded in water, make the degraded that dispersibles oil-suspending agent and can be good at reducing active ingredient.Meanwhile, dispersible oil-suspending agent owing to wherein having added emulsifier component, can make organic facies be distributed to uniformly in water and form small droplet, with the advantage of the formulation such as missible oil, aqueous emulsion.
Summary of the invention
The object of the invention is to the shortcoming for prior art, the herbicidal composition that a kind of herbicidal effect is good, quick-acting is high, the lasting period is long, consumption is few is provided, to reducing peasant's dispenser cost, increase economic efficiency.Be specifically related to the composite composition pesticide of diclosulam and nicosulfuron.
Utilize composition of the present invention, be equipped with the known auxiliary agent of those skilled in that art, with the known method of those skilled in that art, make and dispersible oil-suspending agent.
In above-mentioned composition, the weight ratio that contains diclosulam and nicosulfuron is 1:50-50:1.
Described composition is mainly used in control of maize Tanaka's annual gramineous weed and broad leaved weed.
Advantage and beneficial effect that diclosulam and nicosulfuron composition have: 1. weeding scope is wide, can well control of maize field annual gramineae and broad leaved weed; 2. adhesive force improves, and penetrability strengthens, and dispersibles oil-suspending agent and can well be attached to plant leaf blade surface; 3. complex preparation is to corn safety; 4. dispersible oil-suspending agent formulation advanced person, environmental protection, safe; 5. two kinds of active ingredients composite after, compared with two kinds of single doses, have significant synergies.
Embodiment
Can have good synergistic effect in order to verify that two kinds of active ingredients of diclosulam and nicosulfuron are composite, first applicant tests under room temperature condition of pot, to measure herbicidal effect after two kinds of active ingredient different proportion mixtures, evaluates its synergy.
Test selects grassy weed lady's-grass, broad leaved weed field thistle as target weeds.
The preparation of test medicine:
Diclosulam solution: the former medicine of diclosulam that accurately takes 0.0325g95%, with the methyl alcohol dissolving of 0.2ml, add in the clear water 400ml that contains 0.1% Tween 80 emulsifier, be stirred to evenly, diclosulam 120g a.i./ha solution, then it is for subsequent use to be diluted to finite concentration.
Nicosulfuron solution: the former medicine of nicosulfuron that accurately takes 0.0325g95%, with the dissolving of 0.2ml methyl alcohol, add in the clear water 400ml that contains 0.1% Tween 80 emulsifier, be stirred to evenly, nicosulfuron 120g a.i./ha solution, then it is for subsequent use to be diluted to finite concentration.
Blank solution: the water that adds the Tween 80 emulsifier of 400ml0.1% with the methyl alcohol of 0.2ml.
Test method is as follows:
The activity of medicament to lady's-grass and field thistle after adopting the inspection of gowing method mixed, at the soil of the polypots amount of setting of high 7cm, diameter 10cm, 20, seed for examination weeds is evenly sowed in polypots, the thick thin sand and soil of lid 0.5-1cm, being placed on room temperature (20 DEG C of left and right) cultivates, the above-mentioned solution preparing is carried out composite and is diluted to the liquid of finite concentration gradient, carry out cauline leaf spraying during to the 3-5 leaf phase processes until weed growth, every alms bowl spraying liquid 1ml, 4 repetitions of each processing, are used blank solution to compare.After processing, test material is placed in room temperature and cultivates, and the growing state of routine observation weeds, estimates be injured symptom and the growth inhibition situation of target weeds for 21 days afterwards, weighs strain fresh weight, calculates fresh weight inhibiting rate (%).
Evaluation of effect method, evaluates weed killer herbicide mode of application according to gowing method, and its formula is as follows:
E
0（%）=X+Y×（100-X）/100
C=E
0-E
E in formula
0it is the theoretical preventive effect after two kinds of active ingredient mixtures, weeds being suppressed, E is the actual measurement preventive effect after two kinds of active ingredient mixtures, weeds being suppressed, X is diclosulam preventive effect to target weeds under this dosage, Y is nicosulfuron preventive effect to target weeds under this dosage, C is the synergy coefficient of mixture preparation, in order to evaluate the synergy of two kinds of active ingredients, when C > 10% is synergistic effect, C < 10% is antagonism, and C is addition between ± 10%.
The raw result of the test of surveying of the activity of weeding of table 1 diclosulam proportionings different from nicosulfuron to lady's-grass
Can be found out by above table, composite between two kinds of active ingredients, the preventive effect of lady's-grass is had to synergistic effect clearly.Synergy coefficient (C) is all greater than 10%.Wherein, diclosulam and the nicosulfuron mixed ratio synergy coefficient (C) between 5:1-1:5 is best, has all exceeded 15%.Wherein, both are in the proportioning of 1:1, and synergy coefficient reaches (C) 16.01%, are the highest in all proportionings, and the synergistic effect after two kinds of active ingredients are composite is remarkable.
The raw result of the test of surveying of the activity of weeding of table 2 diclosulam proportionings different from nicosulfuron to field thistle
Can be found out by above table, composite between two kinds of active ingredients, the preventive effect that field thistle is had has good synergistic effect.Synergy coefficient (C) has all exceeded 10%.Wherein the mixed ratio of diclosulam and nicosulfuron between 5:1-1:5 synergy coefficient (C) exceeded 17%, wherein, both are in the proportioning of 1:1, and synergy coefficient reaches 18.86%, be the highest in all proportionings, both synergistic effects are very remarkable.
Can be found out, by composite to diclosulam and nicosulfuron, compared with using single medicament, have good synergistic effect by above-mentioned test data, have good control efficiency for the common annual gramineae of corn field and broad leaved weed.
Below by instantiation in order to further describe the present invention, but the present invention absolutely not only only limits to following these embodiment.In formula, percentage is all weight percentage, and the former medicine using and auxiliary agent are other producers and buy.Formulation examples is as follows:
Dispersible the preparation of oil-suspending agent:
According to dispersibling the requirement of oil-suspending agent formula, taking methylated vegetable oil as medium, by even to active ingredient and dispersant, wetting agent, thickener, emulsifier for mixing, put into sand mill and grind evenly, obtain dispersibling oil-suspending agent.
Embodiment 1 (25.5% dispersibles oil-suspending agent)
Embodiment 2(51% dispersibles oil-suspending agent)
Embodiment 3(10% dispersibles oil-suspending agent)
Embodiment 4(12% dispersibles oil-suspending agent)
Embodiment 5(18% dispersibles oil-suspending agent)
Embodiment 6(33% dispersibles oil-suspending agent)
Embodiment 7(20% dispersibles oil-suspending agent)
Embodiment 8(21% dispersibles oil-suspending agent)
Select above embodiment to carry out the field efficacy experiment of control of maize field weed, to determine the effect of formula control of maize Tanaka's annual gramineous weed and broad leaved weed, simultaneously by comparing with diclosulam and nicosulfuron single dose, determine the synergistic effect after composite, be specifically implemented as follows:
10% diclosulam nicosulfuron dispersibles oil-suspending agent and the experiment of other preparation control of maize field herbicidals.Test site is Guan County, Hebei province, time is on July 1st, 2011, field corn is the 7-8 leaf phase, the weeds 3-4 leaf phase, test medicine all prepare according to above-mentioned example and use 10% diclosulam to dispersible oil-suspending agent, 10% nicosulfuron dispersibles oil-suspending agent and contrasts, test totally four processing, three repetitions of each processing, community randomized arrangement, community area 100m
2.Carry out the spraying of cauline leaf, 15 days and the strain preventive effect of observing respectively each medicament for 30 days after medicine.Record the dispenser same day and the synoptic data of a week thereafter, specific as follows:
Table 3 duration of test meteorological data
Respondent is lady's-grass and the field thistle in field, and visual test medicament occurs without poisoning field corn.Preventive effect is calculated according to the following equation:
Result of the test is as following table:
The test of pesticide effectiveness of table 4 diclosulam proportioning control of maize different from nicosulfuron field weed
Note: in table, data are the mean value repeating for 3 times, letter is all remarkable time of Duncan testing differentia mutually: in July, 2011 place; Hebei Guan County
Can obviously find out from above-mentioned data, after diclosulam and nicosulfuron are composite, all embodiment all exceed 78% to the preventive effect of lady's-grass and field thistle, with respect to diclosulam and two kinds of single doses of nicosulfuron, two kinds of weeds preventive effects are wanted to high a lot, and synergistic effect is remarkable.Preparation after composite is compared with the preventive effect of 15 days the preventive effect of 30 days, all improves, and visible complex preparation has extended the lasting period.Simultaneously, by composite two kinds of active ingredients, make up the original diclosulam shortcoming poor to grassy weed control efficiency, compound drug is all remarkable to the preventive effect of grassy weed and broad leaved weed, expand herbicidal spectrum, thereby reduced peasant's the amount of labour, increased economic efficiency, and in this test scope of medication, to corn safety.
Claims (2)
1. a composition pesticide, is characterized in that: described active component is made up of diclosulam and nicosulfuron, and the weight ratio of diclosulam and nicosulfuron is 1:50～50:1.
2. composition pesticide according to claim 1, is characterized in that: made and dispersibled oil-suspending agent by active ingredient and auxiliary material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131028.4A CN103210942B (en) | 2013-04-16 | 2013-04-16 | Pesticide composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310131028.4A CN103210942B (en) | 2013-04-16 | 2013-04-16 | Pesticide composition |
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| CN103210942A CN103210942A (en) | 2013-07-24 |
| CN103210942B true CN103210942B (en) | 2014-09-03 |
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| CN201310131028.4A Active CN103210942B (en) | 2013-04-16 | 2013-04-16 | Pesticide composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI243019B (en) * | 2000-08-31 | 2005-11-11 | Basf Ag | Process for the preparation of a solid herbicidal formulation |
| ITMI20062368A1 (en) * | 2006-12-11 | 2008-06-12 | Isagro Spa | HERBICIDE COMPOSITIONS |
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Address after: 102488 No. 8, Liangxiang, Beijing, Fangshan District Applicant after: Beijing Yanhua Yongle Biotechnology Co., Ltd. Address before: 102488 No. 8, Liangxiang, Beijing, Fangshan District Applicant before: Beijing Yoloo Pesticide Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: BEIJING YOLOO PESTICIDE CO., LTD. TO: BEIJING YANHUA YONGLE BIOTECHNOLOGY CO., LTD. |
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Effective date of registration: 20171227 Address after: 063600 Leting County Economic Development Zone, Tangshan City, Hebei Patentee after: Yanhua Yongle (Leting) Biological Technology Co. Ltd. Address before: 102488 No. 8, Liangxiang, Beijing, Fangshan District Patentee before: Beijing Yanhua Yongle Biotechnology Co., Ltd. |