CN1930985A - Compound pesticide for preventing and killing plant hopper and rice leaf roller - Google Patents
Compound pesticide for preventing and killing plant hopper and rice leaf roller Download PDFInfo
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- CN1930985A CN1930985A CN 200610096728 CN200610096728A CN1930985A CN 1930985 A CN1930985 A CN 1930985A CN 200610096728 CN200610096728 CN 200610096728 CN 200610096728 A CN200610096728 A CN 200610096728A CN 1930985 A CN1930985 A CN 1930985A
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- rice
- imidacloprid
- chrysanthemum ester
- ether chrysanthemum
- leaf roller
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Abstract
The multifunctional compound pesticide for preventing and killing plant hopper and rice leaf roller consists of active components etofenprox in 0.5-20 % and imidacloprid in 0.5-20 %, emulsifier in 5-15 % and solvent for the rest. The multifunctional compound pesticide has the advantages of obvious synergistic effect, capacity of killing several kinds of pests, less pollution to ecological environment and less residue in rice and aquatic product, both quick and lasting acting, less pesticide resistance and low cost.
Description
One, technical field
The invention belongs to insect chemical control technical field, be specifically related to a kind of efficient, the low toxicity of ether chrysanthemum ester (ethofenprox) and Imidacloprid (imidcloprid), multi-functional composite insecticide of containing, be used for various pests such as high-efficiency prevention and control rice fulgorid and rice leaf roller, can restrain or delay simultaneously the pesticide resistance of insect.
Two, technical background
Rice fulgorid mainly comprises brown planthopper Nilaparvata lugens St l and small brown rice planthopper Laodelphax striatellus Fallen, and it is caused harm by sucking mouthpart absorption paddy rice juice.Except that the paddy rice of directly causing harm, viral disease can also spread disease.In recent years, rice fulgorid is especially big generation in Jiangsu Province, and the paddy rice of not only causing harm forms to emit and wears, and causes being very popular of stripe disease, produces to paddy rice and brings heavy losses.For a long time, the control of rice fulgorid mainly relies on medicaments such as Imidacloprid, dichlorvos, and wherein the Imidacloprid preventive effect is slower, and general control to control effect undesirable, dichlorvos etc. have certain quick-acting, but the lasting period is short especially.Rice leaf roller Cnaphalocrocis medinalis Guenee is a kind of migrating property rice grub, and the paddy rice of causing harm is caused Bai Ye.It is sudden strong, and it is wide to cause harm, and is one of paddy rice primary pest.For a long time, the control of rice leaf roller mainly relies on insecticide varieties such as acephatemet, desinsection list, because acephatemet belongs to high-toxic pesticide, has banned use of in China; Desinsection list (two) belongs to the bio-imitability low toxic pesticide, but the control efficiency of above rice leaf roller is relatively poor to 2 ages, under the situation that insect breaks out on a large scale, existing single control medicament and composite dose are controlled causing harm of rice leaf roller all not yet in effectly, produce to paddy rice and bring heavy losses.Therefore, demand researching and developing low toxicant quick-acting and that effect has both urgently,, control the popular of paddy rice virus disease with the generation of effective compacting rice fulgorid and rice leaf roller.
Ether chrysanthemum ester is the ethers pyrethroid insectide of no ester structure in a kind of molecule, and chemical name is 2-(4-ethoxyl phenenyl)-2-methyl-propyl-3-phenoxy benzyl ether, and it by the exploitation of Mitsui chemical company, now domesticizes the earliest.It belongs to never poison, has and tags and stomach poison function, does not inhale conduction in not having.Quick-acting, the speed of knocking down is fast, insecticidal spectrum is wide, and is effective to various pests such as Lepidoptera, Homoptera, Semiptera, coleoptera, diptera, Isopteras.Ether chrysanthemum ester is low to aquatile toxicity such as fish, can be used safely in the paddy field.At present, China has begun to carry out pyrethrin pesticide test aspect the restricted use in paddy field, and this uses for the expansion of ether chrysanthemum ester in China's agricultural production and lays a good foundation.
Ether chrysanthemum ester has and tags and stomach poison function as a kind of pyrethroid insecticides of tool knockdown effect, and is very fast to the insect speed of action, but the lasting period is not long.On the other hand, Imidacloprid is a kind of nicotinic insecticide that acts on acetylcholinergic receptor, and its lasting period to insect is long, but quick-acting is not good.Thereby Imidacloprid or the agent of ether chrysanthemum ester list all are not the desirable medicaments of control field water rice pest.
Three, summary of the invention
1, goal of the invention
The purpose of this invention is to provide a kind of not only high-efficiency prevention and control rice fulgorid, but also the high-efficiency prevention and control rice leaf roller, have the quick-acting and long low-toxicity multifunctional insecticide of imitating characteristic of holding concurrently.
2, technical scheme
To achieve the above object of the invention, the present invention is by the network analysis to ether chrysanthemum ester and Imidacloprid insecticidal properties, make full use of the complementary advantage of the ether chrysanthemum ester of long Imidacloprid of lasting period and quick-acting, ether chrysanthemum ester and Imidacloprid is compound according to a certain ratio, obtain a kind of multi-functional composite insecticide of novel low toxicity synergy.This composite insecticide is efficient to various pests such as rice fulgorid, rice leaf folders; Have the effect of quick-acting and long-acting control evil concurrently; One medicine is controlled more, has reduced field rotating medicine number of times, dosage and cost, has also significantly reduced the mu time consumption and the use cost of ether chrysanthemum ester; And the inhibition insect is to the pesticide resistance of single insecticide (Imidacloprid, ether chrysanthemum ester).
The composite insecticide of a kind of high-efficiency prevention and control rice fulgorid of the present invention and rice leaf roller is made up of ether chrysanthemum ester and two kinds of active ingredients of Imidacloprid and various auxiliary agent.Use 100 gram finished medicines to calculate by every mu, the net content of various components is in the 100 gram finished medicines: ether chrysanthemum ester 0.5～20 gram, Imidacloprid 0.5～20 gram, auxiliary agent 60～99 grams.
3, beneficial effect
Composite insecticide of the present invention compared with prior art produces following beneficial effect: (1) is compared with single agent, and this composite dose to rice fulgorid and rice leaf roller notable synergistic all, has significantly improved control efficiency; (2) one medicines are controlled more, and a dispenser can prevent and treat various pests simultaneously, reduce control medicine basis and cost; (3) alternative high toxicity agricultural chemicals acephatemet, and reduce dosage, effectively reduce residue of pesticide in ecological environmental pollution and rice, the aquatic products; (4) have the quick-acting and long effect characteristic of holding concurrently, the lasting period can be controlled rapidly again and cause harm more than 15 days simultaneously behind a drug, and single medicament or quick-acting poor or lasting period weak point; (5) suppress the pesticide resistance of insects such as rice leaf roller, rice fulgorid to single medicament; (6) compare with the agent of ether chrysanthemum ester list, composite dose has been reduced application cost significantly.
Four, embodiment:
Reagent agent: ether chrysanthemum ester is that Zhangjiagang seven continent pesticide chemical Co., Ltds produce, and Imidacloprid is that Nanjing red sun group produces.Ether chrysanthemum ester and Imidacloprid are pressed different proportion mix, amount to every mu of usage amount and calculate, the pure medicine content of two kinds of active components is respectively in composite dose: ether chrysanthemum ester 0.5～20 gram, Imidacloprid 0.5～20 gram.
For the examination insect: the synergistic effect in composite dose between two kinds of single agent components is measured, and used rice fulgorid is the brown planthopper and the small brown rice planthopper nymph in 3 age of indoor feeding, and rice leaf roller is 3 instar larvaes that gather in the field; The worm source of field trial is abiogenous rice fulgorid in experimental field and a rice leaf roller in the academy of agricultural sciences, Jiangsu Province, Nanjing.
Assay method:
The method that adopts indoor bioassay and field trial to combine.At first draw composite dose of co-toxicity coefficient of different proportionings, by clear and definite its control efficiency of field trial, determine composite dose prescription and consumption again rice fulgorid and rice leaf roller by biologicall test.
Indoor synergy biologicall test: take by weighing a certain amount of ether chrysanthemum ester and the former medicine of Imidacloprid, use acetone and N respectively, after the dinethylformamide dissolving, respectively add the emulsifier Triton-100 of cumulative volume 5%, mixing is mixed with 10% ether chrysanthemum ester list agent and 10% Imidacloprid list agent respectively.2 kinds of single agent to preparing again are mixed into two yuan composite dose (concrete ratio is seen each embodiment) of different proportionings by a certain percentage.Then, water is handled each composite dose confession reagent liquid that is diluted to a series of concentration respectively as blank with clear water.Rice fulgorid is adopted and soaks seedling method mensuration, and rice leaf roller adopts the soup dip method to measure, and rice seedling or larva are soaked in soup after 1 second and take out, and places earlier to inhale on the blotting paper and removes residual liquor, inserts worm again or adds the rice leaf.24h, 48h and 72h investigate dead borer population respectively after immersion liquid, calculate the virulence and the co-toxicity coefficient of two kinds of medicaments.
Field control effectiveness test: take by weighing a certain amount of ether chrysanthemum ester and the former medicine of Imidacloprid, quantitatively be dissolved in acetone and N respectively, in the dinethylformamide, be mixed with 30% ether chrysanthemum ester solution and 30% Imidacloprid solution; After pressing different proportion again the two being mixed, add cumulative volume 5～15% farming breasts 0204, abundant mixing promptly is mixed with the composite agent emulsifiable solution of different proportionings and content.Adopt the anti-therapy of spraying: in rice fulgorid low age nymph peak period or the rice leaf roller low instar larvae contain and send out a phase dispenser, single agent emulsifiable solution or composite agent emulsifiable solution are converted water by every mu of consumption are configured to soup respectively for 50 kilograms, even spraying, every sub-district 30m
2, each is handled and repeats 4 sub-districts.Rice fulgorid was investigated residual borer population in 1 day, 5 days and 15 days after respectively at medicine, and rice leaf roller was investigated residual borer population in 1 day and 5 days behind medicine, calculate the control efficiency and the significance of difference.
Implementation result:
Embodiment 1:
The result of synergy biologicall test shows: ether chrysanthemum ester and Imidacloprid be by effective ingredient 5: 1,3: 1,1: 1,1: 3 and 1: 5 composite dose of totally 5 kinds of proportionings, and the co-toxicity coefficient of brown planthopper is respectively 123,148,151,168 and 191; Co-toxicity coefficient to small brown rice planthopper is respectively 155,178,211,189 and 197; Co-toxicity coefficient to rice leaf roller is respectively 141,125,172,153 and 185.Show behind these two kinds of composite reagents rice fulgorid and rice leaf roller are all had significant synergistic insecticidal action.
Embodiment 2:
Field test results (table 1) shows: by the pure dose (down together) of every mu of use, composite dose (1: 1) of ether chrysanthemum ester 5 gram+Imidacloprids 5 grams, after the dispenser 1 day, the average insecticidal effect of control rice fulgorid is 72%, (reach 5% significance level significantly, down with) be higher than the insecticidal effect (58%) of mu with ether chrysanthemum ester list agent 5 grams, and the utmost point significantly (reach 1% significance level, down with) be higher than the insecticidal effects (45% and 30%) of mu with Imidacloprid 5 grams or 3 grams.Behind the medicine 5 days, the composite dose of effect to rice fulgorid was 91%, the utmost point be significantly higher than mu with the effect (73%) of ether chrysanthemum ester list agent 10 grams and Imidacloprid mu with 5 effects (81%) that restrain.After the dispenser 15 days, the effect of this composite dose control rice fulgorid was 78%, and still the utmost point is significantly higher than the effect of mu with ether chrysanthemum ester 10 grams or Imidacloprid 5 grams.After dispenser 1 day, composite dose of control efficiency 73% to rice leaf roller, the utmost point is significantly higher than the preventive effect (18%) of mu with Imidacloprid 5 grams, does not have significant difference (68%) with mu with the preventive effect that ether chrysanthemum ester 5 restrains; Behind the medicine 5 days, the composite dose of preventive effect to leaf-roller was 62%, and still the utmost point is significantly higher than the preventive effect (24%) of mu with Imidacloprid 5 grams, with the preventive effect indifference of mu with ether chrysanthemum ester 5 grams.
Table 1 ether chrysanthemum ester, Imidacloprid and the composite dose of field insecticidal effect of preventing and treating rice fulgorid and rice leaf roller thereof
| Handle | Mu consumption (gram a.i.) | Rice fulgorid preventive effect (%) | Rice leaf roller preventive effect (%) | |||
| 1d behind the medicine | 5d | 15d | 1d behind the medicine | 5d behind the medicine | ||
| Ether chrysanthemum ester+Imidacloprid | 5+5 | 72bB | 91aA | 78aA | 73bB | 62cB |
| 8+3 | 88aA | 86aAB | 73aA | 90aA | 81abA | |
| 10+2 | 93aA | 90aA | 71abA | 94aA | 83aA | |
| Ether chrysanthemum ester | 5 | 58cB | 47dD | 15eD | 68bB | 56cB |
| 10 | 86aA | 73bB | 30dC | 87aA | 75bA | |
| Imidacloprid | 3 | 30eD | 60cC | 51cB | 12cC | 15eC |
| 5 | 45dC | 81bB | 65bA | 18cC | 24dC | |
Embodiment 3:
Field test results also shows (table 1): composite dose (2.7: 1) of ether chrysanthemum ester 8 gram+Imidacloprids 3 gram, and after the dispenser 1 day, the effect of control rice fulgorid was 88%, the utmost point is significantly higher than the effects of mu with Imidacloprid 3 grams or 5 grams, and is suitable with the effect of ether chrysanthemum ester 10 grams with mu.After the dispenser 5 days, the effect of composite dose of control rice fulgorid was 86%, was significantly higher than mu with the effect of ether chrysanthemum ester 10 grams or the mu effect with Imidacloprid 5 grams.Behind the medicine 15 days, the effect of this composite dose control rice fulgorid was 73%, still be significantly higher than mu with Imidacloprid 5 grams or ether chrysanthemum ester mu with the 10 corresponding effects that restrain.Behind the medicine 1 day and 5 days, the effect of composite dose of control rice leaf roller was respectively 90% and 81%, and the utmost point is significantly higher than the preventive effects of mu with Imidacloprid 3 grams or 5 grams, and suitable with the effect of ether chrysanthemum ester 10 grams with mu.
Embodiment 4:
Composite dose (5: 1) of ether chrysanthemum ester 10 gram+Imidacloprids 2 gram, after the dispenser 1 day, the effect of control field rice fulgorid was 93%, the utmost point is significantly higher than the corresponding effects of mu with Imidacloprid 3 grams or 5 grams, and is suitable with 10 effects that restrain with ether chrysanthemum ester mu; After the dispenser 5 days, the effect of control rice fulgorid was 90%, and the utmost point is significantly higher than the effect of mu with ether chrysanthemum ester 10 grams or Imidacloprid 5 grams.Behind the medicine 15 days, the effect of this composite dose control rice fulgorid was 71%, and the utmost point is significantly higher than the preventive effect of mu with ether chrysanthemum ester 10 grams, and is suitable with the effect same period of Imidacloprid 5 grams with mu.Behind the medicine 1 day, the effect of composite dose of control rice leaf roller was respectively 94%, and the utmost point is significantly higher than the preventive effects of mu with Imidacloprid 3 grams or 5 grams, and suitable with the effect of ether chrysanthemum ester 10 grams with mu; Behind the medicine 5 days, composite dose effect was 83%, and the utmost point is significantly higher than the preventive effect of mu with Imidacloprid 5 grams, was significantly higher than the preventive effect (table 1) of mu with ether chrysanthemum ester 10 grams.
The above results shows, compare with ether chrysanthemum ester for this composite dose, significant prolongation the lasting period; And compare with Imidacloprid, then significantly strengthened quick-acting.Therefore, this composite dose has quick-acting and long-acting characteristic concurrently to rice fulgorid, becomes a kind of novel omnidistance efficient medicament, can reduce the field rotating medicine number of times.
Claims (3)
1, a kind of composite insecticide of preventing and treating rice fulgorid and rice leaf roller, it is characterized in that by ether chrysanthemum ester, Imidacloprid, emulsifier and solvent composition, use 100 gram finished medicines to calculate by every mu, the percentage by weight of each component is in the finished medicines: ether chrysanthemum ester 0.5～20%, Imidacloprid 0.5～20%, emulsifier 5～15%, all the other are solvent.
2, composite insecticide according to claim 1 is characterized in that emulsifier is Triton-100 and farming breast 0204.
3, composite insecticide according to claim 1 is characterized in that solvent is acetone and N, the double solvents of dinethylformamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610096728 CN1930985A (en) | 2006-10-12 | 2006-10-12 | Compound pesticide for preventing and killing plant hopper and rice leaf roller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610096728 CN1930985A (en) | 2006-10-12 | 2006-10-12 | Compound pesticide for preventing and killing plant hopper and rice leaf roller |
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| CN1930985A true CN1930985A (en) | 2007-03-21 |
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| CN 200610096728 Pending CN1930985A (en) | 2006-10-12 | 2006-10-12 | Compound pesticide for preventing and killing plant hopper and rice leaf roller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2967039A4 (en) * | 2013-03-14 | 2016-08-31 | Sergeants Pet Care Prod Inc | Spot-on pesticide composition comprising a neonicotinoid and a pyrethroid |
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- 2006-10-12 CN CN 200610096728 patent/CN1930985A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2967039A4 (en) * | 2013-03-14 | 2016-08-31 | Sergeants Pet Care Prod Inc | Spot-on pesticide composition comprising a neonicotinoid and a pyrethroid |
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