CN104996434A - Pesticide composition containing tolfenpxrad and etoxazole - Google Patents
Pesticide composition containing tolfenpxrad and etoxazole Download PDFInfo
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- CN104996434A CN104996434A CN201510402263.XA CN201510402263A CN104996434A CN 104996434 A CN104996434 A CN 104996434A CN 201510402263 A CN201510402263 A CN 201510402263A CN 104996434 A CN104996434 A CN 104996434A
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- tolfenpyrad
- mite
- etoxazole
- mite azoles
- pesticide
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Abstract
The invention discloses a pesticide composition containing tolfenpyrad and etoxazole. The composition comprises the following effective components: tolfenpyrad and etoxazole, wherein the weight ratio of tolfenpyrad to etoxazole is 40: 1 to 1: 40, and the total weight of tolfenpyrad and etoxazole accounts for 5% to 60% of the weight of the pesticide composition. The pesticide composition containing tolfenpyrad and etoxazole provided by the invention is applied in prevention and control of Panonychus citri McGregor and Diaphorina citri; meanwhile, the pesticide composition is superior to a single pesticide in aspects of fast-acting property and durable effect, reduces application dosage of pesticides, lowers pesticide cost and is favorable for environmental protection and comprehensive treatment of agricultural pests.
Description
Technical field
The present invention relates to composition pesticide and application technology thereof, be specifically related to the composition pesticide that a kind of active ingredient is Tolfenpyrad and second mite azoles, for the control of agricultural pest.
Background technology
Tolfenpyrad (tolfenpyrad) is pyrazole heterocycle class insecticidal/acaricidal agent, and its main mechanism is the oxidative phosphorylation stoping insect, also has ovicidal, presses down food, oviposition deterrence effect.
Second mite azoles (etoxazole), belongs to 2,4-diphenyl-oxazole derivatives quasi-compound, is a kind of selectivity miticide, mainly suppresses the molting process of mite class, thus has excellence contact from ovum, larva to pupa different phase to mite.
It is one of agricultural production important step that information system of crop pest distribution in China is administered, and is the emphasis problem that agricultural science and technology worker pays close attention to always.Along with the increase of the continuity year in year out prevented and treated pest chemicals, Pesticide use amount and the impact of the not factor such as scientifical use agricultural chemicals, cause pest resistance day by day serious, the pest species producing resistance is on the increase.Meanwhile, due to the use agricultural chemicals of high strength, result in that Practice for Pesticide Residue in Agricultural Products exceeds standard, the series of problems such as contaminated environment and the increase of peasant's drug cost, be unfavorable for the sustainable development of agricultural.Different classes of compound science combination, not only improves effect, contributes to the generation delaying pest resistance to insecticide, reduce using dosage, cost-saving, reduces the pollution to environment.
The combination of the present inventor to Tolfenpyrad, second mite azoles conducts in-depth research, discovery Tolfenpyrad, second mite azoles combine, within the scope of certain compound proportion, there is obvious synergistic function, improve agricultural pest control efficiency in actual use simultaneously, especially citrus red mite and diaphorina citri, after further study, the present invention is completed.
Summary of the invention
The object of the present invention is to provide a kind of composition pesticide containing Tolfenpyrad and second mite azoles, said composition has obvious synergistic function, is applicable to prevent and treat agricultural pest, especially citrus red mite and diaphorina citri.
Another object of the present invention is to the composition pesticide containing Tolfenpyrad and second mite azoles, improve result of use, reduce consumption, reduce the residual quantity of agricultural chemicals on crops, delay the generation of pest resistance to insecticide.
For solving the problem, the technical solution adopted in the present invention is: a kind of composition pesticide containing Tolfenpyrad and second mite azoles, active ingredient is Tolfenpyrad, second mite azoles, and the ratio of weight and number of Tolfenpyrad and second mite azoles is 40:1 ~ 1:40, and preferred weight portion rate is 30:1 ~ 1:10; Tolfenpyrad and the percentage by weight of second mite azoles weight summation in composition pesticide are 5%-60%, and all the other are the auxiliary element that can use and allow in pesticidal preparations to use.
Described composition pesticide according to well known to a person skilled in the art method, can be mixed with the application forms of the applicable agricultural uses such as suspending agent.
Described composition pesticide is also containing the usual auxiliaries of preparation needed for pesticidal preparations, usual auxiliaries is the mixing of one or more in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc., be known substance, various auxiliary agents conventional in pesticidal preparations, can change to some extent according to different situations, be not particularly limited.
The application of described composition pesticide, for preventing and treating crop pests, mainly prevents and treats citrus red mite, diaphorina citri.
Composition pesticide provided by the invention, usually adopts the method for spraying to use, also can adopt other operation techniques agriculturally applied as required.
Composition pesticide provided by the invention has following beneficial effect:
1, composition pesticide provided by the invention, shows obvious synergistic effect in certain ratio range, and control efficiency of the present invention is significantly improved than single dose, reduces the using dosage of agricultural chemicals, decreases the impact of agricultural chemicals on environment, reduces drug cost.
2, the active ingredient mechanism of action of composition pesticide provided by the invention is different, and the application of composition can delay or overcome the generation of disease drug resistance, extends the service life of medicament, is conducive to the comprehensive regulation of insect.
3, composition pesticide provided by the invention is to Crop securify.
Embodiment
In order to understand essence of the present invention better, below in conjunction with embodiment, content of the present invention is described further, but can not limitation of the present invention be considered as.
In following each embodiment, active ingredient adopts the former medicine of Tolfenpyrad, the former medicine of second mite azoles, and each component percentages is weight percentage.
Embodiment 1:15% Tolfenpyrad second mite azole suspending agent.
Tolfenpyrad 12%, second mite azoles 3%, sodium alkyl sulfonate 5%, polyethylene glycol stearate 5%, gum Arabic 1%, propane diols 2%, methyl alcohol 3%, deionized water supplies 100%.Above-mentioned active ingredient, dispersant, wetting agent, thickener, antifreezing agent, defoamer and deionized water are mixed, sand milling in high speed shear dispersion, sand mill, the high dispersive formed in water-medium, stable suspension system, can obtain 15% Tolfenpyrad second mite azole suspending agent.
Embodiment 2: joint toxicity measuring in indoor chamber.
1, Tolfenpyrad, second mite azoles itself and the combination indoor joint toxicity measuring to diaphorina citri.
For examination worm: select field to gather and raise diaphorina citri 3 nymph in age of breeding in indoor.
Reagent agent: Tolfenpyrad, second mite azoles.
Test method: adopt infusion process to measure, concrete grammar is as follows.
Choose the strain of the fresh oranges and tangerines bud tip 3, supplying dipping in reagent liquid after 30 seconds, to take out nature and dry, encase root moisturizing with wet absorbent cotton, outsourcing preservative film, be placed in teat glass (200mm × 30mm), often processing 4 times and repeating.Then with diaphorina citri 3 nymph in age of writing brush access ether light anesthesia, often pipe 20, the white gauze of the mouth of pipe is tightened.Be disposed, be placed in observation ward.
If do not contain the process of the corresponding organic solvent of medicament in contrast.After process, 24h investigation examination worm death condition, records total borer population and dead borer population.
Carry out statistical analysis with DPS statistical analysis software, calculate the LC of each medicament
50, and the co-toxicity coefficient (CTC value) of mixture is calculated according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard agent LC
50/ reagent agent LC
50) × 100.
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B.
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100.
According to the NY/T11547.7-2006 insecticide combination effect criteria for classifying: co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
As can be seen from Table 1, Tolfenpyrad, second mite azoles mixture weight ratio 40:1 ~ 1:40, co-toxicity coefficient (CTC) is all greater than 120, shows synergistic function, especially more obvious at 30:1 ~ 1:10 synergistic function.
Table 1, Tolfenpyrad, second mite azoles and the indoor joint toxicity measuring result of combination to diaphorina citri thereof.
2, Tolfenpyrad, second mite azoles and the indoor joint toxicity measuring of combination to citrus red mite thereof.For examination worm: if select field to gather and raise the female mite of citrus red mite of breeding in indoor.
Reagent agent: Tolfenpyrad, second mite azoles.
Test method adopts leaf butterfly spray-on process, and concrete operation method is as follows:
Choose the Citrus leaf of healthy growth, make leaf butterfly with card punch, in culture dish, place a wet sponge block, it puts filter paper, foliation butterfly on filter paper, every ware puts 2 pieces of leaf butterflies, selecting healthy, that the length of time the is consistent female one-tenth mite of citrus red mite is inoculated on leaf butterfly, and every leaf butterfly inoculates 20.
Under the culture dish being connected to leaf butterfly is placed in potter spray tower, spray under 50PSI pressure, spray amount is 1ml, take out culture dish after sedimentation 1min, then the culture dish processed is put into 25 DEG C, cultivate in 12H/12H illumination box, check dead borer population after 48h, calculate lethality.Often 4 repetitions are established in process, and establish the process of clear water blank.
Carry out statistical analysis with DPS statistical analysis software, calculate the LC of each medicament
50, and the co-toxicity coefficient (CTC value) of mixture is calculated according to the abundant method of Sun Yun.
Actual measurement toxicity index (ATI)=(standard agent LC
50/ reagent agent LC
50) × 100.
In theoretical toxicity index (TTI)=A medicament toxicity index × mixture A percentage composition+B medicament toxicity index × mixture in the percentage composition of B.
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100.
According to the NY/T11547.7-2006 insecticide combination effect criteria for classifying: co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
As can be seen from Table 2, Tolfenpyrad, second mite azoles mixture weight ratio 40:1 ~ 1:40, co-toxicity coefficient (CTC) is all greater than 120, shows synergistic function, especially more obvious at 30:1 ~ 1:10 synergistic function.
Table 2, Tolfenpyrad and second mite azoles are to the indoor joint toxicity measuring result of citrus red mite.
Embodiment 3: field control effectiveness test.
1, Tolfenpyrad, second mite azoles and composition for preventing and controlling diaphorina citri field control effectiveness test thereof.
Adopting 15% Tolfenpyrad second mite azole suspending agent (12% Tolfenpyrad: 3% second mite azoles) for preventing and treating diaphorina citri, adopting spray-on process.Dispenser Qian Mei presses community diagonal 5 sampling, and often some tea tree 2 ~ 3 strain (depending on insect density) choosing diaphorina citri ovum and adult, diaphorina citri quantity in probability demarcation strain, in this, as the insect population radix before dispenser.After medicine, 3d, 7d, 10d investigate residual diaphorina citri borer population alive respectively, record borer population of living, calculate control efficiency.Control efficiency computational methods are as follows:
Preventive effect (%)=(1-CK
1× Pt
1/ CK
2× Pt
2) × 100.
Wherein: CK
1represent insect population number before the medicine of check plot; Pt
1represent insect population number after treatment region medicine;
CK
2represent insect population number after the medicine of check plot; Pt
2represent insect population number before treatment region medicine;
As can be seen from Table 3,15% Tolfenpyrad second mite azole suspending agent effective ingredient consumption 15 ~ 30mg/kg prevents and treats diaphorina citri, 3d, 7d, 14d preventive effect 90.24 ~ 96.45%, 87.41 ~ 95.71%, 95.66 ~ 95.44% after medicine, there is good quick-acting and lasting effect, successful is better than 15% Tolfenpyrad oil slick, 100 grams per liter second mite azole suspending agents, and does not find that medicament produces poisoning to oranges and tangerines in pilot survey process.
The result of the test of table 3, each process chemical control diaphorina citri.
2, Tolfenpyrad, second mite azoles and the field control effectiveness test of combination to citrus red mite thereof.
Adopt 15% Tolfenpyrad second mite azole suspending agent (12% Tolfenpyrad: 3% second mite azoles) for preventing and treating citrus red mite, investigation insect population radix before dispenser, after medicine, 10d, 15d, 20d investigate residual mite number of living respectively, 2 strains are looked in investigation Shi Mei community, every strain looks into 5 blades respectively by orientation, 4, the four corners of the world, each community looks into 40 blades altogether, records mite number of living, and calculates control efficiency.Control efficiency computational methods are as follows:
Control efficiency (%)=(1-CK
1× Pt
1/ CK
2× Pt
2) × 100.
Wherein: CK
1represent insect population number before the medicine of check plot; Pt
1represent insect population number after treatment region medicine;
CK
2represent insect population number after the medicine of check plot; Pt
2represent insect population number before treatment region medicine;
As can be seen from Table 4,15% Tolfenpyrad second mite azole suspending agent effective ingredient consumption 15 ~ 30mg/kg prevents and treats diaphorina citri, 10d, 15d, 20d preventive effect 92.15 ~ 96.04%, 94.85 ~ 98.12%, 92.08 ~ 94.57% after medicine, there is good quick-acting and lasting effect, successful is better than 15% Tolfenpyrad oil slick, 100 grams per liter second mite azole suspending agents, and does not find that medicament produces poisoning to oranges and tangerines in pilot survey process.
The result of the test of table 4, each process chemical control citrus red mite.
Claims (5)
1. one kind contains the composition pesticide of Tolfenpyrad and second mite azoles, it is characterized in that: active ingredient is Tolfenpyrad, second mite azoles, the ratio of weight and number of Tolfenpyrad and second mite azoles is 40:1 ~ 1:40, and Tolfenpyrad and the percentage by weight of second mite azoles weight summation in composition pesticide are 5%-60%.
2. a kind of composition pesticide containing Tolfenpyrad and second mite azoles according to claim 1, is characterized in that: the ratio of weight and number of Tolfenpyrad and second mite azoles is 30:1 ~ 1:10.
3. a kind of composition pesticide containing Tolfenpyrad and second mite azoles according to claim 1 and 2, is characterized in that: its formulation is suspending agent.
4. a kind of composition pesticide containing Tolfenpyrad and second mite azoles according to claim 1 is preventing and treating the application in crop pests.
5. a kind of composition pesticide containing Tolfenpyrad and second mite azoles according to claim 4, is characterized in that: described insect is citrus red mite, diaphorina citri.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113678836A (en) * | 2021-08-27 | 2021-11-23 | 广东中迅农科股份有限公司 | Acaricidal composition and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006131516A (en) * | 2004-11-04 | 2006-05-25 | Nippon Nohyaku Co Ltd | Pest control agent composition and method for use thereof |
| CN103250706A (en) * | 2012-02-16 | 2013-08-21 | 陕西美邦农药有限公司 | Insecticidal composition containing tolfenpyrad |
| CN103931621A (en) * | 2014-03-16 | 2014-07-23 | 广东中迅农科股份有限公司 | Pesticide composition containing tolfenpyrad and cyflumetofen |
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2015
- 2015-07-08 CN CN201510402263.XA patent/CN104996434A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006131516A (en) * | 2004-11-04 | 2006-05-25 | Nippon Nohyaku Co Ltd | Pest control agent composition and method for use thereof |
| CN103250706A (en) * | 2012-02-16 | 2013-08-21 | 陕西美邦农药有限公司 | Insecticidal composition containing tolfenpyrad |
| CN103931621A (en) * | 2014-03-16 | 2014-07-23 | 广东中迅农科股份有限公司 | Pesticide composition containing tolfenpyrad and cyflumetofen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113678836A (en) * | 2021-08-27 | 2021-11-23 | 广东中迅农科股份有限公司 | Acaricidal composition and application thereof |
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Application publication date: 20151028 |
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