CN101606531B - Compound insecticide containing silafluofen and chlorpyrifos - Google Patents
Compound insecticide containing silafluofen and chlorpyrifos Download PDFInfo
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- CN101606531B CN101606531B CN2009101817841A CN200910181784A CN101606531B CN 101606531 B CN101606531 B CN 101606531B CN 2009101817841 A CN2009101817841 A CN 2009101817841A CN 200910181784 A CN200910181784 A CN 200910181784A CN 101606531 B CN101606531 B CN 101606531B
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Abstract
The invention belongs to the technical field of chemical pest control, and relates to a compound insecticide which contains silafluofen and chlorpyrifos, and is used for controlling rice hoppers. The effective ingredients of the compound insecticide which contains the silafluofen and the chlorpyrifos are silafluofen and chlorpyrifos, the weight ratio of which in a preparation is 4:1-1:6. The compound insecticide is an emulsifiable concentrate, or wettable powder, or a water emulsion, or a microemulsion, which is formed by the mixing of the effective ingredients and a conventional additive. Compared with the conventional rice hopper insecticides, the compound insecticide can significantly improve control effect, replace high toxic pesticides, reduce dosage, environmental pollution and agricultural product residues, and delay the drug resistance of rice hoppers to a single insecticide, and has the advantages of fast insecticidal speed and long duration. Compared with single reagents, the compound insecticide can lower the cost.
Description
Technical field
The invention belongs to insect chemical control technical field, relate to a kind of composite insecticide that contains silafluofene (silafluofen) and chlopyrifos (chlorpyrifos) that is used to prevent and treat rice fulgorid.
Background technology
Rice fulgorid (comprising brown planthopper, small brown rice planthopper, white-backed planthopper) is the rice grub that a kind of migrate very capable (except the small brown rice planthopper), reproduction speed are exceedingly fast; The paddy rice of causing harm causes rice clump base portion pitchy, and it is undesired to ear, and thousand kernel weight alleviates; Complete stool is withered when serious; Causing the paddy rice underproduction significantly, but also can cause stripe virus disease by transmitted virus, is one of insect of mainly preventing and treating of paddy rice.For a long time, the control of rice hoppers mainly relies on Imidacloprid, organic phosphor and composite dose, and wherein high malicious organophosphorous pesticide bans use of; Because long-term single continuous use Imidacloprid, brown planthopper, small brown rice planthopper have produced tangible pesticide resistance to Imidacloprid, and control efficiency sharply descends; Especially under big situation about taking place; Imidacloprid mu consumption (effective content) is brought up to 3～4 grams, and control efficiency only 30～40% is produced to paddy rice and to be brought serious loss.The organophosphorus insecticide that control rice leaf folder and snout moth's larva are used stimulates rice fulgorid and increases; The unreasonable use agricultural chemicals of peasant; Kill and wound the useful natural enemy in rice field, dispenser personnel intoxication accident is of common occurrence, therefore; Research and development are efficient, the pesticide species of low toxicity, environment-friendly type control rice fulgorid, become the task of top priority.
Silafluofene is a kind of siliceous novel organic insecticide, chemical name: (4-ethoxyl phenenyl) [3-(4-fluoro-3-Phenoxyphenyl) propyl group] (dimethyl) silane does not contain ester bond in its structure.It belongs to never poison, has stomach toxicity and action of contace poison, does not inhale conduction in not having; Active height, chemical property are stablized; The speed of knocking down is fast, insecticidal spectrum is wide, and termite is had good repellent action, and insect-proof agent is used as termite control agent, dress material in the family expenses aspect; In agricultural production, can prevent and treat insects such as plant hopper, leafhopper class, stinkbug class, rice leaf roller, locustamigratoria.Silafluofene can be used safely in the paddy field to mammal and fish low toxicity.
Chlopyrifos is the phosphorothionate insecticides; Have tag, stomach toxicity and fumigation action, lepidoptera pest, plant hopper, leafhopper, mythimna separata, aphid etc. are all had the better prevention effect, but the single use control of chlopyrifos rice fulgorid cost is high; And pollution-free rice production; The alternative kind of high-toxic pesticide seldom the situation of continuous use, relay medication certainly will occur, and rice grub is bigger to the risk that the chlopyrifos pesticide resistance produces.
Therefore, to the control of rice fulgorid on the current Rice Production, research and develop out that control efficiency is good, efficiency time is long, slow down the composite new varieties of pesticides that pesticide resistance produces.
Summary of the invention
Technical problem to be solved by this invention is, a kind of, composite insecticide of containing silafluofene and chlopyrifos that can delay pest resistance to insecticide good to the rice fulgorid control efficiency is provided.
The present invention contains the composite insecticide of silafluofene and chlopyrifos, and its effective ingredient is silafluofene and chlopyrifos, silafluofene and the chlopyrifos weight ratio in preparation 4: 1～1: 6.
The composite insecticide that contains silafluofene and chlopyrifos of the present invention is the missible oil that is formed by above-mentioned effective ingredient and conventional additive mixture, or wetting powder, or aqueous emulsion, or microemulsion.
When preparation missible oil; Its auxiliary agent is: emulsifier accounts for preparation 5-15% by weight; Emulsifier is one or more among farming breast 0206,0204,0201,0203,2201,600,0P-10, the QK-10, uses when multiple, and total usage amount can not be greater than the maximum of deal; The surfactant comprise preparation is 5-15% by weight; Surfactant is one or more in castor oil polyoxyethylene ether, APES phosphate, non-ionic surface active agent, the anion surfactant; Use when multiple, total usage amount can not be greater than the maximum of deal; Carrier accounts for preparation 10-70% by weight, and carrier is one or more in alcohols, ketone, ester class and the aromatic hydrocarbon, uses when multiple, and total usage amount can not be greater than the maximum of deal.
When the preparation wetting powder; Its auxiliary agent is: wetting agent accounts for preparation 3-35% by weight; Wetting agent is natural products wetting agent and anionic wetting agent; In available Chinese honey locust sweet smell, silkworm excrement, neopelex, the washing powder one or more use when multiple, and total usage amount can not be greater than the maximum of deal; Dispersant accounts for preparation 4-30% by weight, and dispersant is an anionic dispersing agent, and one or more in available lignin and derivative sulfonate, the alkylsulfonate use when multiple, and total usage amount can not be greater than the maximum of deal; Carrier accounts for preparation 10-70% by weight, and carrier is one or more in clay, kaolin, the bentonite, uses when multiple, and total usage amount can not be greater than the maximum of deal.
During aqueous emulsion, its auxiliary agent is: emulsifier accounts for preparation 5-15% by weight, and emulsifier is one or more in the benzene sulfonamide acid metal salt in preparation, uses when multiple, and total usage amount can not be greater than the maximum of deal; Antifreezing agent accounts for preparation 1-10% by weight, and antifreezing agent is one or more in ethylene glycol, propane diols, the sorbierite, uses when multiple, and total usage amount can not be greater than the maximum of deal; Solvent accounts for preparation 10-40% by weight, and solvent is one or more in alcohols, ketone, ester class and the aromatic hydrocarbon, uses when multiple, and total usage amount can not be greater than the maximum of deal; Surplus is supplied by water.
During microemulsion, its auxiliary agent is: emulsifier accounts for preparation 5-30% by weight, and emulsifier is one or more in the benzene sulfonamide acid metal salt in preparation, uses when multiple, and total usage amount can not be greater than the maximum of deal; The stabilizer comprises preparation is 1-10% by weight, and stabilizing agent is one or more in the glycidol ether, uses when multiple, and total usage amount can not be greater than the maximum of deal; Antifreezing agent accounts for preparation 1-10% by weight, and antifreezing agent is one or more in ethylene glycol, propane diols, the sorbierite, uses when multiple, and total usage amount can not be greater than the maximum of deal; Solvent accounts for preparation 10-60% by weight, and solvent is one or more in alcohols, ketone, ester class and the aromatic hydrocarbon, uses when multiple, and total usage amount can not be greater than the maximum of deal.
Composite insecticide of the present invention is compared with conventional rice fulgorid insecticide, has the following advantages: 1, compare this kind with single agent rice hoppers is had obvious synergistic effect, can significantly improve control efficiency; 2, can substitute high-toxic pesticide (acephatemet etc.), reduce dosage, reduce the residual of environmental pollution and agricultural product; 3, can delay the pesticide resistance of rice fulgorid to single insecticide, 4, have that desinsection speed is fast concurrently, advantage that the lasting period is long, compare with single medicament, can reduce cost.
Embodiment
Embodiment 1～embodiment 6:
Two kinds of single agent were mixed being made into the binary built agent respectively in silafluofene with the ratio (active ingredient) of chlopyrifos in 4: 1,1: 1,1: 2,1: 4,1: 6, carry out the indoor bioassay synergistic effect as embodiment 1～embodiment 5.Supplying the reagent agent is silafluofene (Jiangsu Yangnong Chemical Group Co., Ltd's production), chlopyrifos (Jiangsu Province Lvdunzhibao Agriculture Chemical Experiment Co., Ltd production); Supplying the examination insect is brown planthopper 2-3 nymph in age.Take by weighing the former medicine of a certain amount of silafluofene and chlopyrifos; Be made into the 1000ppm mother liquor with acetone and emulsifier TritonX X100 (0.1%); Two kinds of single agent are made into binary built agent, 1000ppm silafluofene mother liquor, 1000ppm chlopyrifos mother liquor 5 concentration of dilute with water respectively in the ratio of the foregoing description 1～embodiment 6 respectively, handle with clear water and make blank; Employing is soaked seedling method (30 day length of time rice seedlings grow of rice seedling) and is measured, and the rice seedling immersion liquid was taken out after 15 seconds, with the blotting paper suction go unnecessary soup or air-dry after; Place the test tube of 1 centimetre of diameter, 20 centimetres of length; Insert the examination worm then, investigated dead borer population respectively, and calculated lethality, virulence and co-toxicity coefficient in 24 hours.
Can know from measuring result's (table 1); Silafluofene and chlopyrifos active ingredient are made into the binary built agent by 4: 1,1: 1,1: 2,1: 4,1: 6 mixed; Co-toxicity coefficient to brown planthopper 2-3 nymph in age is respectively 155.62,136.55,510.71,573.39,142.90, shows that silafluofene and chlopyrifos active ingredient are in 4: 1-1: all there is significant synergistic effect the composite back of 6 ratios to brown planthopper.
Table 17 kind of different medicaments are to the malicious together coefficient determination result of the virulence of brown planthopper (24 hours)
| Embodiment | Medicament | Ratio | The toxicity regression formula | LC50 | Co-toxicity coefficient |
| Silafluofene: chlopyrifos | 1∶0 | Y＝3.6556x+1.3458 | 9.98 | / | |
| Silafluofene: chlopyrifos | 0∶1 | y＝2.5851x+1.1235 | 5.3 | / | |
| Embodiment 1 | Silafluofene: chlopyrifos | 4∶1 | Y＝2.6886x+3.1392 | 5.45 | 155.62 |
| Embodiment 2 | Silafluofene: chlopyrifos | 1∶1 | Y＝2.8169x+3.0963 | 5.07 | 136.55 |
| Embodiment 3 | Silafluofene: chlopyrifos | 1∶2 | Y＝4.7782x+2.4678 | 1.23 | 510.71 |
| Embodiment 4 | Silafluofene: chlopyrifos | 1∶4 | Y＝3.9701x+2.8551 | 1.02 | 573.39 |
| Embodiment 5 | Silafluofene: chlopyrifos | 1∶6 | Y＝3.0238x+1.9984 | 4.87 | 142.90 |
Embodiment 6:
Prepare 35% silafluofene chlorpyrifos ec, each composition weight proportion is:
Silafluofene (active ingredient) 7%
Chlopyrifos (active ingredient) 28%
Farming breast 0,206 8%
QK-10 5％
Ethanol 3%
The xylol surplus
7% silafluofene and 28% chlopyrifos with gross weight adds the allotment kettle earlier, adds farming breast 8%0206 and 5%QK-10 then, adds etoh solvent and xylol at last, stirs promptly configurable 35% silafluofene chlorpyrifos ec 30 minutes.
Embodiment 7:
Field control effectiveness test supplies the reagent kind: 40% chlorpyrifos ec, 5% silafluofene missible oil, 35% chlopyrifos silafluofene missible oil (press instance 6 disposes), in early June striatellus imago peak period dispenser; 50 kilograms of every mu of dosages; Even spraying, 20 square metres of every processing, triplicate; Investigate the insect population radix of small brown rice planthopper before the medicine and behind the medicine in 1 day, 3 days, calculate control efficiency and significance of difference analysis.
Result of the test shows (table 2); Behind the medicine 1 day; 60 milliliters every mu, 80 milliliters, 100 milliliters control efficiency to striatellus imago of 35% silafluofene chlorpyrifos ec are respectively 82.59%, 90.74%, 95.78%; Wherein 80 milliliters, 100 milliliters processing of 35% silafluofene chlorpyrifos ec are close with the control efficiency (92.51%) of contrast medicament 5% silafluofene missible oil, are better than the control efficiency (84.07%) of 40% chlopyrifos slightly; Behind the medicine 3 days; 60 milliliters every mu, 80 milliliters, 100 milliliters control efficiency to striatellus imago of 35% silafluofene chlorpyrifos ec are respectively 82.56%, 88.95%, 93.27%; The control effect of three concentration is close with the effect (88.78%) of contrast medicament silafluofene missible oil, extremely significantly is superior to contrasting the control efficiency (70.00%) of medicament 40% chlopyrifos; Behind the medicine 7 days; 60 milliliters every mu, 80 milliliters, 100 milliliters control efficiency to striatellus imago of 35% silafluofene chlorpyrifos ec are respectively 73.29%, 82.37%, 89.55%; Wherein 80 milliliters, 100 milliliters processing of 35% silafluofene chlorpyrifos ec significantly are better than the control efficiency of contrast medicament 5% silafluofene missible oil (76.30%), 40% chlorpyrifos ec (69.06%), and 60 milliliters every mu control efficiency to striatellus imago of 35% silafluofene chlorpyrifos ec are close with the contrast medicament.
Table 2 35% silafluofene chlorpyrifos ec is to the control efficiency of striatellus imago
Embodiment 8:
Effect to embodiment 6 control brown planthoppers is carried out field control effectiveness test (seeing table 3); Supply the reagent kind: 5% silafluofene missible oil, 40% chlorpyrifos ec, 35% silafluofene chlorpyrifos ec (embodiment 6); In early August brown planthopper adult peak period dispenser, 50 kilograms of every mu of water consumptions, even spraying; 20 square metres of every processing, triplicate.
Result of the test shows (table 3); Behind the medicine 3 days; 60 milliliters every mu, 80 milliliters, 100 milliliters control efficiency to brown planthopper of 35% silafluofene chlorpyrifos ec are respectively 88.43%, 92.56%, 94.86%; Three concentration are close with the control efficiency (89.62%) of contrast medicament 40% chlorpyrifos ec to the control efficiency of brown planthopper, are better than the control efficiency (76.39%) of 5% silafluofene missible oil; Behind the medicine 7 days; 60 milliliters every mu, 80 milliliters, 100 milliliters control efficiency to brown planthopper of 35% silafluofene chlorpyrifos ec are respectively 89.66%, 93.87%, 95.28%, three concentration the control efficiency of brown planthopper obviously are better than the control efficiency (80.54%) of contrast medicament 40% chlorpyrifos ec, the control efficiency of 5% silafluofene missible oil (79.76%)
Table 3 35% silafluofene chlorpyrifos ec is to the control efficiency of brown planthopper
Claims (2)
1. composite insecticide that contains silafluofene and chlopyrifos, it is characterized in that: its effective ingredient is silafluofene and chlopyrifos, silafluofene and the chlopyrifos weight ratio in preparation 4: 1～1: 6.
2. the composite insecticide that contains silafluofene and chlopyrifos according to claim 1 is characterized in that: this insecticide is the missible oil that is formed by above-mentioned effective ingredient and additive mixture, or wetting powder, or aqueous emulsion, or microemulsion.
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Citations (3)
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| CN1305716A (en) * | 2000-01-14 | 2001-08-01 | 山东华阳农药化工集团有限公司 | Mixed agricultural chemical containing chlorpyrifos |
| CN1911038A (en) * | 2005-08-12 | 2007-02-14 | 南京第一农药有限公司 | Synergistic compound pesticide contg. trans-cypermethrin and chlopyrifos |
| CN1957710A (en) * | 2006-10-27 | 2007-05-09 | 陕西上格之路生物科学有限公司 | Composition of insecticide containing chlorpyrifos |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305716A (en) * | 2000-01-14 | 2001-08-01 | 山东华阳农药化工集团有限公司 | Mixed agricultural chemical containing chlorpyrifos |
| CN1911038A (en) * | 2005-08-12 | 2007-02-14 | 南京第一农药有限公司 | Synergistic compound pesticide contg. trans-cypermethrin and chlopyrifos |
| CN1957710A (en) * | 2006-10-27 | 2007-05-09 | 陕西上格之路生物科学有限公司 | Composition of insecticide containing chlorpyrifos |
Non-Patent Citations (2)
| Title |
|---|
| 丛杉等.广谱杀虫杀螨剂氟硅菊酯的合成综述.《现代农药》.2007,第6卷(第1期),全文. * |
| 无.毒死蜱.《农药科学与管理》.1983,(第2期), * |
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