CN104186506A - Compound pesticide for rice pest prevention and application thereof - Google Patents
Compound pesticide for rice pest prevention and application thereof Download PDFInfo
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- CN104186506A CN104186506A CN201410510889.8A CN201410510889A CN104186506A CN 104186506 A CN104186506 A CN 104186506A CN 201410510889 A CN201410510889 A CN 201410510889A CN 104186506 A CN104186506 A CN 104186506A
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- tolfenpyrad
- cycloxaprid
- composite insecticide
- rice
- insecticide
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Abstract
The invention discloses a compound pesticide for rice pest prevention. The compound pesticide comprises active ingredients of tolfenpyrad and cycloxaprid, wherein the weight ratio of the tolfenpyrad to the cycloxaprid is 7:3 to 1:2; the compound pesticide also comprises an additive and a carrier; the weight of the tolfenpyrad and the cycloxaprid accounts for 21%-30% of the total weight of the compound pesticide; the weight of the additive accounts for 5%-30% of the total weight of the pesticide and the balance is the carrier. The invention also discloses application of the compound pesticide for rice pest prevention to rice plant hopper prevention and rice leaf folder prevention. The pesticide provided by the invention is subjected to the actual test and can remarkably prevent the rice plant hoppers and the rice leaf folders.
Description
Technical field
The invention belongs to technical field of pesticide, be specifically related to a kind of composite insecticide and application thereof that prevents and treats rice fulgorid and leaf-roller.
Background technology
Rice hoppers is the insect that a kind of harmfulness is large, reproduction speed is exceedingly fast, and the paddy rice of causing harm causes heading undesired, and thousand kernel weight alleviates, when serious, complete stool is withered, causing the significantly underproduction of paddy rice, but also can cause stripe virus disease by transmitted virus, is the insect of paddy rice keypoint control.In Rice Production, the control of rice fulgorid mainly relies on Imidacloprid, organic phosphor and built agent thereof, wherein high malicious organophosphorous pesticide bans use of, due to long-term single continuous use Imidacloprid, brown planthopper, small brown rice planthopper has produced obvious pesticide resistance to Imidacloprid, control efficiency sharply declines, especially 2006, brown planthopper in 2007, in the situation of the large generation of small brown rice planthopper, Imidacloprid mu consumption (effective content) is brought up to 3～4 grams, control efficiency only 30～40%, bring serious difficulty to Rice Production, therefore, research and development high-efficiency prevention and control brown planthopper, the pesticide species of small brown rice planthopper, become the task of top priority.
Rice leaf roller belongs to Lepidoptera Pyralidae, is paddy rice Occurrence.Rice plant of tillering stage is injured affects its normal growth; Middle and later periods is injured, and affects output more obvious, and particularly sword-like leave is injured the later stage, causes not plump paddy rate to increase, and loss is serious.Adult is hidden by day and come out at night, and has the light of becoming, becomes green and the characteristic of trooping.Ovum is loose to be originated on blade, and conventionally taking blade back as many, newly hatched larvae is climbed to blade tip leaf roll and taken food, and slightly large larva pierces in the leaf heart, leaf sheath or on blade face and stings food mesophyll, and weaves silk vertical the both sides of leaf clove hitch bud.Knot is just eaten mesophyll and epicuticle along vein after bud well in bud, and killed leaf presents strip tikka different in size.After larva is aging, in plant bottom and leaf sheath portion again tie bud and pupate.A larva edible harmful 5-9 sheet leaf in all one's life, it is withered white that killed serious field presents a slice.Along with the popularization of hybrid rice and short-stalked variety and the change of cropping system, habitat and Feeding Condition are all better in recent years, and therefore rice leaf roller breeds soon, survival rate is high, and rice hazard is on the rise.Control pharmacopoeia in production, only suitable control 1-2 instar larvae, the lasting period is short, and to large instar weak effect, peasant needs repeatedly dispenser, just can control its harm.
Tolfenpyrad (tolfenpyrad) is the novel pyrazole heterocyclic Insecticidal and acaricidal agent of Japanese agricultural chemicals company exploitation in 1988, various biological effect tests and safety testing have proved high efficiency and the safety of this medicine, 1996 start test in Japan, registration in 2002, starts to carry out in China the field medicine effect test of vegetables and fruit tree for 2004.This medicine insecticidal spectrum is very wide, and each Lepidopterous, Semiptera, beetle order, Hymenoptera, Diptera pest and mite class are had to higher control efficiency, and this medicine also has good quick-acting, and one is treated, and insect is at once dead.Be widely used in vegetables, fruit tree, cereal crops pest control.
Cycloxaprid is a kind of new and effective, wide spectrum, low toxicity nicotinic insecticide, the domestic kind with independent intellectual property right, activity is high, mechanism of action is new, highly active nAChR antagonist, mechanism of action is new, be mainly used in preventing and treating homoptera pest, and rice fulgorid is had to good control efficiency.
Tolfenpyrad and cycloxaprid are composite, that different insecticidal mechanisms mutually combine, widen insecticidal spectrum, gram slow down the generation of pest resistance to insecticide, have relevant report adopted Tolfenpyrad and cycloxaprid composite, but the rice fulgorid to rice hazard maximum and two kinds of insects of leaf-roller are not carried out to correlative study, also do not provide the best matching with other concrete auxiliary agents to prevent and treat the formula of rice fulgorid and leaf-roller.
Summary of the invention
Goal of the invention: first technical problem to be solved by this invention has been to provide a kind of for rice fulgorid with leaf-roller control efficiency is good, cost is lower, can delay the composite insecticide of pest resistance to insecticide.Second technical problem to be solved by this invention is also to provide above-mentioned composite insecticide in the application of killing aspect rice fulgorid and leaf-roller.
Technical scheme: for solving the problems of the technologies described above, the invention provides a kind of composite insecticide of preventing and treating rice grub, described composite insecticide comprises active ingredient Tolfenpyrad and cycloxaprid, wherein the weight ratio of Tolfenpyrad and cycloxaprid is 7:3～1:2, described composite insecticide also comprises auxiliary agent and carrier, wherein Tolfenpyrad and cycloxaprid account for the 21%-30% of composite insecticide gross weight, and auxiliary agent accounts for the 5%-30% of insecticidal total weight, and all the other are carrier.
Wherein, the weight ratio of above-mentioned Tolfenpyrad and cycloxaprid is 7:3.
Wherein, above-mentioned Tolfenpyrad and cycloxaprid account for 25.5% of composite insecticide gross weight.
Wherein, above-mentioned Tolfenpyrad and cycloxaprid account for 30% of composite insecticide gross weight.
Wherein, above-mentioned auxiliary agent is lauryl sodium sulfate, ethoxylated dodecyl alcohol, one or more of lignosulfonates, sulfonic acid polyformaldehyde condensation product, polyethylene glycol, ammonium sulfate, sodium carboxymethylcellulose, sodium butylnaphthalenesulfonate, 1-METHYLPYRROLIDONE, alkyl benzene calcium sulfonate, phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether, ethylene glycol, silicone compound, xanthans, aluminium-magnesium silicate.
Wherein, above-mentioned carrier is one or more in water, alcohols, ketone, ester class and aromatic hydrocarbon, kaolin, diatomite.
Wherein, the formulation of above-mentioned composite insecticide is the one in water dispersible granules, wetting powder or aqueous emulsion.
The application of above-mentioned a kind of composite insecticide of preventing and treating rice grub aspect rice fulgorid, leaf-roller.
Insecticide of the present invention, through actual test, has significant control efficiency to rice fulgorid and leaf-roller.
Beneficial effect: compared to the prior art composite insecticide of the present invention and ether chrysanthemum ester single dose, have the following advantages: 1, rice fulgorid and leaf-roller are had a significant effect, save labor; 2, high malicious insecticide in can Substitute For Partial, reduces dosage, reduces the residual of environmental pollution and agricultural product; 3, have advantages of that the lasting period is long, compared with single medicament, can reduce costs.4, to crop, natural enemy, Environmental security.
Embodiment
Embodiment 1:25.5% Tolfenpyrad cycloxaprid water dispersible granule
17g Tolfenpyrad, 8.5g cycloxaprid, 4g lauryl sodium sulfate, 2g ethoxylated dodecyl alcohol, 2g lignosulfonates, 2g sulfonic acid polyformaldehyde condensation product (NNO), 2g polyethylene glycol, 4g ammonium sulfate, 10g sodium carboxymethylcellulose, kaolin are mended to 100g, make 25.5% Tolfenpyrad cycloxaprid water dispersible granule.
Embodiment 2:25.5% Tolfenpyrad cycloxaprid water dispersible granule
17.85g Tolfenpyrad, 7.65g cycloxaprid, 4g lauryl sodium sulfate, 2g ethoxylated dodecyl alcohol, 2g lignosulfonates, 2g sulfonic acid polyformaldehyde condensation product (NNO), 2g polyethylene glycol, 4g ammonium sulfate, 10g sodium carboxymethylcellulose, kaolin are mended to 100g, make 25.5% Tolfenpyrad cycloxaprid water dispersible granule.
According to the formula of embodiment 1,2, active ingredient, auxiliary agent, carrier are mixed, after stirring, obtain female powder through pulverizing, female powder is mixed with binding agent, then granulation, dry, sieve, can make 25.5% Tolfenpyrad cycloxaprid water dispersible granule.
Embodiment 3:30% Tolfenpyrad cycloxaprid wettable powder
21g Tolfenpyrad, 9g cycloxaprid, 6g lauryl sodium sulfate, 5g sodium lignin sulfonate, 4g pull open powder (BX), diatomite is supplied 100g.Make 30% Tolfenpyrad cycloxaprid wettable powder.
Embodiment 4:30% Tolfenpyrad cycloxaprid wettable powder
14g Tolfenpyrad, 16g cycloxaprid, 4g lauryl sodium sulfate, 4g sodium lignin sulfonate, 2g pull open powder (BX), diatomite is supplied 100g.Make 30% Tolfenpyrad cycloxaprid wettable powder.
According to the formula of embodiment 3,4, active ingredient, auxiliary agent, carrier are added together, after air-flow crushing, in cone-type mixer, mix and blend 30 minutes, can make Tolfenpyrad cycloxaprid wettable powder.
Embodiment 5 21% Tolfenpyrad cycloxaprid emulsion in waters
14g Tolfenpyrad, 7g cycloxaprid, 10g dimethylbenzene, 5gN-methyl pyrrolidone, 2g alkyl benzene calcium sulfonate, 6g phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether, 4g ethylene glycol, 0.4g silicone compound, 0.1g xanthans, 0.8g aluminium-magnesium silicate, water are mended to 100g, make 21% Tolfenpyrad cycloxaprid emulsion in water.
Embodiment 6:30% Tolfenpyrad cycloxaprid emulsion in water
21g Tolfenpyrad, 9g cycloxaprid, 10g dimethylbenzene, 5gN-methyl pyrrolidone, 2g alkyl benzene calcium sulfonate, 6g phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether, 4g ethylene glycol, 0.4g silicone compound, 0.1g xanthans, 0.8g aluminium-magnesium silicate, water are mended to 100g, make 30% Tolfenpyrad cycloxaprid emulsion in water.
According to the formula of embodiment 5,6, active ingredient, solvent xylene and 1-METHYLPYRROLIDONE, emulsifier alkyl benzene calcium sulfonate and phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether are added together, be dissolved into even oil phase; Water, antifreeze ethylene glycol, thickener xanthans and aluminium-magnesium silicate, defoamer silicone compound are mixed, become homogeneous water.Under high-speed stirred, water is added to oil phase, can make Tolfenpyrad cycloxaprid emulsion in water.
Experimental example:
Select the preparation of embodiment 1,3,6 to carry out contrast test to the control efficiency of rice fulgorid and leaf-roller, each 25 grams/acre, 50 grams/acre, 40 grams/acre, the preparation of embodiment 1,3,6 is set, each 40 grams/acre of 15% Tolfenpyrad EC, 10% cycloxaprid SC25 gram/acre and blank totally 6 processing, every processing repeats 3 times, repeats 50 square metres of areas, community randomized arrangement, between processing, be separated by with the mud ridge, prevent water in field crossfire, guarantee the accuracy of each pharmacy test data.In brown planthopper nymph Sheng phase spray medicine, adopt the Changjiang river-10 type atomizer spray, process by low concentration to high concentration successively dispenser by experimental scheme, 50 kilograms of every mu of liquids, before spray medicine and after spray medicine 1,3,7d, the parallel jump method sampling in every community, every some investigation 2 caves, investigate 20 cave brown planthopper insect population radixes altogether, and whether checkout facility medicament has poisoning to crop simultaneously, record type and the extent of injury of poisoning, calculate control efficiency with check plot brown planthopper nature insect population gradient.
Table 1 is prevented and treated Brown Planthopper result of the test
The test of pesticide effectiveness two: each 25 grams/acre, 30 grams/acre, 40 grams/acre, the preparation that embodiment 2,4,5 is set, 15% 40 grams/acre of Tolfenpyrad EC, 5.7% 20 grams/acre of first dimension salt WDG and blank totally 6 processing, every processing repeats 3 times, repeat 50 square metres of areas, community randomized arrangement, is separated by with the mud ridge between processing, prevent water in field crossfire, guarantee the accuracy of each pharmacy test data.Adopt the Changjiang river-10 type atomizer spray in ovum hatching Sheng phase to the low instar larvae phase, 50 kilograms of every mu of liquids, within after medicine 15 days, investigate residual worm amount in leaf roll and leaf roll, calculate protecting effect of leaves according to the difference of applying area and check plot leaf roll rate, calculate control worm effect according to the difference of the residual insect population in applying area and check plot.
Table 2 is prevented and treated rice leaf folder experimental result
Note: in table, data are 3 times and repeat mean.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. prevent and treat the composite insecticide of rice grub for one kind, it is characterized in that, described composite insecticide comprises active ingredient Tolfenpyrad and cycloxaprid, wherein the weight ratio of Tolfenpyrad and cycloxaprid is 7:3～1:2, described composite insecticide also comprises auxiliary agent and carrier, wherein Tolfenpyrad and cycloxaprid account for the 21%-30% of composite insecticide gross weight, and auxiliary agent accounts for the 5%-30% of insecticidal total weight, and all the other are carrier.
2. a kind of composite insecticide of preventing and treating rice grub according to claim 1, is characterized in that, the weight ratio of described Tolfenpyrad and cycloxaprid is 7:3.
3. a kind of composite insecticide of preventing and treating rice grub according to claim 1, is characterized in that, described Tolfenpyrad and cycloxaprid account for 25.5% of composite insecticide gross weight.
4. a kind of composite insecticide of preventing and treating rice grub according to claim 3, it is characterized in that, described auxiliary agent is lauryl sodium sulfate, ethoxylated dodecyl alcohol, one or more of lignosulfonates, sulfonic acid polyformaldehyde condensation product, polyethylene glycol, ammonium sulfate, sodium carboxymethylcellulose, sodium butylnaphthalenesulfonate, 1-METHYLPYRROLIDONE, alkyl benzene calcium sulfonate, phenethyl phenol mela mine-formaldehyde resin polyoxy ethyl ether, ethylene glycol, silicone compound, xanthans, aluminium-magnesium silicate.
5. a kind of composite insecticide of preventing and treating rice grub according to claim 3, is characterized in that, described carrier is one or more in water, alcohols, ketone, ester class and aromatic hydrocarbon, kaolin, diatomite.
6. a kind of composite insecticide of preventing and treating rice grub according to claim 1, is characterized in that, the formulation of described composite insecticide is the one in water dispersible granules, wetting powder or aqueous emulsion.
7. the application of the composite insecticide that a kind of described in claim 1-6 any one prevents and treats rice grub aspect rice fulgorid, leaf-roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510889.8A CN104186506A (en) | 2014-09-28 | 2014-09-28 | Compound pesticide for rice pest prevention and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410510889.8A CN104186506A (en) | 2014-09-28 | 2014-09-28 | Compound pesticide for rice pest prevention and application thereof |
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| CN104186506A true CN104186506A (en) | 2014-12-10 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631887A (en) * | 2004-11-23 | 2005-06-29 | 华东理工大学 | Nitryl methylene derivatives and uses thereof |
| CN103719115A (en) * | 2013-12-25 | 2014-04-16 | 江苏龙灯化学有限公司 | Insecticidal composition |
| WO2014079724A1 (en) * | 2012-11-22 | 2014-05-30 | Basf Se | Pesticidal mixtures |
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- 2014-09-28 CN CN201410510889.8A patent/CN104186506A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631887A (en) * | 2004-11-23 | 2005-06-29 | 华东理工大学 | Nitryl methylene derivatives and uses thereof |
| WO2014079724A1 (en) * | 2012-11-22 | 2014-05-30 | Basf Se | Pesticidal mixtures |
| CN103719115A (en) * | 2013-12-25 | 2014-04-16 | 江苏龙灯化学有限公司 | Insecticidal composition |
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Application publication date: 20141210 |