CN101356924B - Composite insecticide containing silafluofene - Google Patents
Composite insecticide containing silafluofene Download PDFInfo
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- CN101356924B CN101356924B CN200810196198XA CN200810196198A CN101356924B CN 101356924 B CN101356924 B CN 101356924B CN 200810196198X A CN200810196198X A CN 200810196198XA CN 200810196198 A CN200810196198 A CN 200810196198A CN 101356924 B CN101356924 B CN 101356924B
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- silafluofene
- pesticide
- pyrrole aphid
- aphid ketone
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Abstract
The invention belongs to the technical field of chemical control for pests, and relates to a compound pesticide with silafluofen for controlling rice planthoppers. The active ingredients of the compound pesticide with the silafluofen comprise the silafluofen and pymetrozine, wherein, the weight ratio of the two components in the compound pesticide is 1:1 to 1:16. Compared with a common rice planthopper pesticide, the compound pesticide has the following advantages: (1) compared with a single preparation, the compound pesticide has an obvious synergistic effect on rice planthoppers and can obviously improve control effect; (2) the compound pesticide can replace high-toxicity pesticides (for example, methamidophos, and the like), reduces the amount of the pesticide to be used, and lowers environmental pollution and residue in agricultural products; (3) the compound pesticide can prolong the drug resistance of the rice planthoppers to the single pesticide; and (4) the compound pesticide is quick in desinsection speed and long in effect lasting period, and can reduce cost compared with the single pesticide.
Description
Technical field
The invention belongs to insect chemical control technical field, relate to a kind of composite insecticide that contains silafluofene (silafluofen) 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, it is undesired to ear, 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 the insect of paddy rice keypoint control.For a long time, the control of rice hoppers mainly relies on Imidacloprid, organic phosphor and composite dose, wherein high malicious organophosphorous pesticide bans use of, because long-term single continuous use Imidacloprid, brown planthopper, small brown rice planthopper has produced tangible pesticide resistance to Imidacloprid, control efficiency sharply descends, especially 2006, brown planthopper in 2007, under the situation of the big generation of small brown rice planthopper, Imidacloprid mu consumption (effective content) is brought up to 3～4 grams, control efficiency only 30～40% is produced to paddy rice and to be brought serious loss, therefore, research and development high-efficiency prevention and control brown planthopper, the pesticide species of small brown rice planthopper has become the task of top priority.
Silafluofene is a kind of siliceous novel organic insecticide, chemical name: (4-ethoxyl phenenyl) [3-(4-fluorine-3-Phenoxyphenyl) propyl group] (dimethyl) silane does not contain ester bond in its structure.It belongs to never poison, have stomach toxicity and action of contace poison, 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 the family expenses aspect is as termite control agent, dress material insect-proof agent, 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.
Pyrrole aphid ketone is that the new type heterocycle class of Switzerland Novartis Co.,Ltd 1988 exploitation is efficient, low toxicity, selective insecticide, and its mode of action uniqueness mainly influences the feed behavior of insect, makes its food refusal and dead.Have stronger systemic action, be used to prevent and treat insects such as plant hopper, Phytophthira, stinkbug class, the lasting period is long, and the speed of knocking down is slow.
At present, on the Rice Production effectively the medicament of control rice fulgorid seldom, it is higher that pyrrole aphid ketone is used to prevent and treat the cost of rice fulgorid, occurred the situation progressively used continuously, this is undoubtedly land for growing field crops screening of resistant insect, and usage amount progressively strengthens, the control cost improves once again.
Summary of the invention
Technical problem to be solved by this invention is, a kind of, composite insecticide of containing silafluofene 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 its effective ingredient is silafluofene and pyrrole aphid ketone, and the weight ratio of two kinds of compositions in insecticide is 1:1～1:16.
The present invention can be a wetting powder, and the weight ratio that the total amount of silafluofene that comprises in its composition and pyrrole aphid ketone accounts for preparation is 2-40%, also includes auxiliary agent and carrier in its composition; Described auxiliary agent and the weight ratio that accounts for preparation thereof are wetting agent 2-20%, dispersant 2-20%, adsorbent 2-20%; Surplus is a carrier.
Described wetting agent can be used one or more in spaonin powder, sodium lignin sulfonate, the neopelex; Described dispersant is NNO; Described adsorbent is a white carbon; Described carrier is one or more in kaolin, the attapulgite.
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 5:
Two kinds of single agent are mixed being made into the binary built agent respectively in silafluofene with ratio (active ingredient) 1:1,1:2,1:4,1:8, the 1:16 of pyrrole aphid ketone, carry out the indoor bioassay synergistic effect as embodiment one～embodiment five.Reagent agent is silafluofene (Jiangsu Yangnong Chemical Group Co., Ltd's production), pyrrole aphid ketone (Jiangsu Anpon Electrochemical Co., Ltd.'s production); For the examination insect is brown planthopper 2-3 nymph in age.Take by weighing a certain amount of silafluofene and the former medicine of pyrrole aphid ketone, 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 pyrrole aphid ketone mother liquor 5 concentration of dilute with water respectively in the ratio of the foregoing description 1～embodiment 5 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.
From measurement result (table 1) as can be known, silafluofene mixes in 1:1,1:2,1:4,1:8,1:16 ratio with pyrrole aphid ketone active ingredient and is made into the binary built agent, co-toxicity coefficient to brown planthopper 2-3 nymph in age is respectively 148.42,130.17,128.62,123.99,124.16, shows that silafluofene and pyrrole aphid ketone active ingredient all have significant synergistic effect in the composite back of 1:1-1:16 ratio 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: pyrrole aphid ketone | 1:0 | Y＝3.6556x+1.3458 | 9.98 | / | |
| Silafluofene: pyrrole aphid ketone | 0:1 | y＝2.5851x+1.1235 | 141.08 | / | |
| Embodiment one | Silafluofene: pyrrole aphid ketone | 1:1 | Y＝3.5913x+1.2056 | 12.56 | 148.42 |
| Embodiment two | Silafluofene: pyrrole aphid ketone | 1:2 | Y＝1.5165x+1.8983 | 20.15 | 130.17 |
| Embodiment three | Silafluofene: pyrrole aphid ketone | 1:4 | Y＝0.8693x+2.0097 | 30.24 | 128.62 |
| Embodiment four | Silafluofene: pyrrole aphid ketone | 1:8 | Y＝1.0802x+2.1457 | 46.27 | 123.99 |
| Embodiment five | Silafluofene: pyrrole aphid ketone | 1:16 | Y＝2.7361x+0.9171 | 64.01 | 124.16 |
Embodiment six:
Prepare 15% silafluofene pyrrole aphid ketone wetting powder, each composition weight proportion is:
Silafluofene (active ingredient) 5%
Pyrrole aphid ketone (active ingredient) 10%
Neopelex 1%
NNO 3％
White carbon 10%
Sodium lignin sulfonate 4%
The kaolin surplus
Former medicine of 5% silafluofene and 10% farming breast, 2201 usefulness, 10% white carbon with gross weight adsorbs earlier, mix with 10% pyrrole aphid ketone, 1% neopelex, 4% sodium lignin sulfonate and kaolin surplus of gross weight then, behind comminution by gas stream, in cone-type mixer, mix and stirred promptly configurable 15% silafluofene pyrrole aphid ketone wetting powder 30 minutes.
Embodiment 7:
Prepare 16% silafluofene pyrrole aphid ketone wetting powder, each composition weight proportion is:
Silafluofene (active ingredient) 8% (weight, down together)
Pyrrole aphid ketone (active ingredient) 8%
Neopelex 1%
NNO 3％
White carbon 12%
Sodium lignin sulfonate 4%
The kaolin surplus
Former medicine of 8% silafluofene and 10% farming breast, 2201 usefulness, 12% white carbon with gross weight adsorbs earlier, mix with 8% pyrrole aphid ketone, 1% neopelex, 4% sodium lignin sulfonate and kaolin surplus of gross weight then, behind comminution by gas stream, in cone-type mixer, mix and stirred promptly configurable 16% silafluofene pyrrole aphid ketone wetting powder 30 minutes.
Effect to embodiment six control striatellus imagos is carried out field control effectiveness test (seeing Table 2), supply the reagent kind: 5% silafluofene missible oil, 25% pyrrole aphid ketone wetting powder, 15% silafluofene pyrrole aphid ketone wetting powder (embodiment six), in early June striatellus imago 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, behind the medicine 1 day, 15% silafluofene pyrrole aphid ketone wetting powder mu consumption, 50 grams are 98.74% to the control efficiency of striatellus imago, the control efficiency (77.37%) that extremely significantly is better than 25% pyrrole aphid ketone wetting powder mu consumption, 25 grams is with the control efficiency there was no significant difference of 100 milliliters of 5% silafluofene missible oil mu consumptions; Behind the medicine 3 days, 15% silafluofene pyrrole aphid ketone wetting powder mu consumption, 50 grams all extremely significantly were better than the control efficiency of 100 milliliters of the control efficiency of 25% pyrrole aphid ketone wetting powder mu consumption, 25 grams and 5% silafluofene missible oil mu consumptions to the control efficiency of striatellus imago; Behind the medicine 7 days, 15% silafluofene pyrrole aphid ketone wetting powder mu consumption, 50 grams are 96.43% to the control efficiency of striatellus imago, the control efficiency that extremely significantly is better than 100 milliliters of 5% silafluofene missible oil mu consumptions is with the control efficiency there was no significant difference of 25% pyrrole aphid ketone wetting powder mu consumption, 25 grams.
Table 2 15% silafluofene pyrrole aphid ketone wetting powder is to the control efficiency of striatellus imago
Effect to embodiment six and embodiment seven control white-backed planthoppers is carried out field control effectiveness test (seeing Table 3), test is handled: 15% silafluofene pyrrole aphid ketone wetting powder (embodiment six) mu consumption, 50 grams, 16% silafluofene pyrrole aphid ketone wetting powder (embodiment seven) mu consumption, 40 grams, 100 milliliters of 5% silafluofene missible oil mu consumptions, 25% pyrrole aphid ketone wetting powder mu consumption, 25 grams, in late July white-backed planthopper nymph peak period dispenser, 50 kilograms of every mu of water consumptions, even spraying, 150 square metres of every processing.Result of the test shows, behind the medicine 1 day, the control efficiency of 15% silafluofene pyrrole aphid ketone wetting powder mu consumption, 50 grams and 16% silafluofene pyrrole aphid ketone wetting powder mu consumption, 40 grams all extremely significantly was better than the control efficiency that 100 milliliters of 5% silafluofene missible oil mu consumptions, 25% pyrrole aphid ketone wetting powder mu consumption 25 restrain; Behind the medicine 3 days, the control efficiency of 15% silafluofene pyrrole aphid ketone wetting powder mu consumption, 50 grams and 16% silafluofene pyrrole aphid ketone wetting powder mu consumption, 40 grams all significantly is better than the control efficiency of 100 milliliters of 5% silafluofene missible oil mu consumptions, does not have significant difference with the control efficiency of 25% pyrrole aphid ketone wetting powder mu consumption, 25 grams; Behind the medicine behind 7 days trend and the medicine 1 day identical; Behind the medicine 14 days, the control efficiency of 15% silafluofene pyrrole aphid ketone wetting powder mu consumption, 50 grams and 16% silafluofene pyrrole aphid ketone wetting powder mu consumption, 40 grams all extremely significantly is better than the control efficiency of 100 milliliters of 5% silafluofene missible oil mu consumptions, does not have significant difference with the control efficiency of 25% pyrrole aphid ketone wetting powder mu consumption, 25 grams.
Table 3 silafluofene pyrrole aphid ketone wetting powder is to the control efficiency of white-backed planthopper
Effect to embodiment seven control brown planthopper adults is carried out field control effectiveness test (seeing Table 4), supply the reagent kind: 16% silafluofene pyrrole aphid ketone wetting powder mu consumption, 20 grams, 30 grams, 40 grams, 100 milliliters of 5% silafluofene missible oil mu consumptions, 25% pyrrole aphid ketone wetting powder mu consumption, 25 grams, in early September brown planthopper nymph peak period dispenser, 50 kilograms of every mu of water consumptions, even spraying, 20 square metres of every processing, triplicate.Field investigation is the result show, behind the medicine 3 days, the control efficiency of 16% silafluofene pyrrole aphid ketone wetting powder mu consumption, 20 grams, 30 grams, 40 grams all significantly were better than contrasting the effect of medicament; , behind the medicine 7 days, the control efficiency of 16% silafluofene pyrrole aphid ketone wetting powder mu consumption, 20 grams, 30 grams, 40 grams all extremely significantly were better than contrasting the effect of medicament; Behind the medicine 14 days, the control efficiency of 16% silafluofene pyrrole aphid ketone wetting powder mu consumption, 20 grams, 30 grams, 40 grams and the effect there was no significant difference of contrast medicament; Behind the medicine 21 days, the control efficiency of 16% silafluofene pyrrole aphid ketone wetting powder mu consumption, 20 grams, 30 grams, 40 grams all extremely significantly is better than the effect of 100 milliliters of 5% silafluofene missible oil mu consumptions, with the effect there was no significant difference of 25% pyrrole aphid ketone wetting powder mu consumption, 25 grams.
Table 416% silafluofene pyrrole aphid ketone wetting powder is to the control efficiency of brown planthopper adult
Claims (3)
1. composite insecticide that contains silafluofene, it is characterized in that: its effective ingredient is silafluofene and pyrrole aphid ketone, and the weight ratio of two kinds of compositions in insecticide is 1: 1～1: 16.
2. the composite insecticide that contains silafluofene according to claim 1 is characterized in that: it is a wetting powder, and the weight ratio that the total amount of silafluofene that comprises in its composition and pyrrole aphid ketone accounts for preparation is 2-40%, also includes auxiliary agent and carrier in its composition; Auxiliary agent that is comprised and the weight ratio that accounts for preparation thereof are wetting agent 2-20%, dispersant 2-20%, adsorbent 2-20%; Surplus is a carrier.
3. the composite insecticide that contains silafluofene according to claim 2 is characterized in that: described wetting agent is one or more in spaonin powder, sodium lignin sulfonate, the neopelex; Described dispersant is NNO; Described adsorbent is a white carbon; Described carrier is one or more in kaolin, the attapulgite.
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| CN200810196198XA CN101356924B (en) | 2008-09-19 | 2008-09-19 | Composite insecticide containing silafluofene |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101642107B (en) * | 2009-07-17 | 2012-03-21 | 陕西上格之路生物科学有限公司 | Insect-killing composition containing pymetrozine and etofenprox |
| CN101632385B (en) * | 2009-08-31 | 2013-07-03 | 江苏辉丰农化股份有限公司 | Insecticidal compound containing pymetrozine |
| CN101961029A (en) * | 2010-10-28 | 2011-02-02 | 江苏扬农化工股份有限公司 | Compound pesticide containing pymetrozine and silafluofen and application thereof |
| CN103688989A (en) * | 2013-12-13 | 2014-04-02 | 广西田园生化股份有限公司 | Ultra-low volume liquid containing silafluofen and organophosphorus insecticide |
| CN104304310A (en) * | 2014-09-28 | 2015-01-28 | 江苏省绿盾植保农药实验有限公司 | Composite insecticide containing tolfenpyrad and salifluofen and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1416704A (en) * | 2001-10-29 | 2003-05-14 | 大日本除虫菊株式会社 | Ant preventing material and ant preventing method using the same |
| EP1023832B1 (en) * | 1999-01-29 | 2004-11-17 | Basf Aktiengesellschaft | Aqueous suspension concentrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1023832B1 (en) * | 1999-01-29 | 2004-11-17 | Basf Aktiengesellschaft | Aqueous suspension concentrate |
| CN1416704A (en) * | 2001-10-29 | 2003-05-14 | 大日本除虫菊株式会社 | Ant preventing material and ant preventing method using the same |
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