Two, technical background
Gamma cyhalothrin claims cyhalothrin again.
ISO adopted name: lambda-cyhalothrin
Chemical name: alpha-cyano-3-benzyloxy phenoxy base-3-(2-chloro-3,3,3-trifluoro-propenyl)-2,2-dimethyl cyclopropane carboxylic acid ester
Structural formula:
Empirical formula: C23H19ClF3NO3
Gamma cyhalothrin is a kind of widely used pyrethroid insecticides, is high-efficient broad-spectrum insecticide, and tool is tagged and the insecticide of stomach poison function, and quick-acting is good, prevents and treats a lot of insects.Effective especially to coleoptera and Lepidoptera, the insect that is mainly used in control has rice leaf roller, paddy stem borer, striped rice borer, rice leafhopper, plant hopper, stinkbug, cutworm, aphid, corn borer, cotton bollworm, pink bollworm, looper, thrips, aleyrodid, flea beetle, tomato moth, dive fly, moth-eaten moth, gypsymoth, tent caterpillar and coccid etc.Gamma cyhalothrin has certain preventive effect to the insect and the evil mite of sucking mouth parts, can doublely control the mite class.Gamma cyhalothrin decomposes in plant corpus soon, and residual hazard is low, to the person poultry safety, environment is had no adverse effects.
Flufenoxuron (flufenoxuron) belongs to the benzoyl area kind insect growth regulator, IGR, and it is synthetic to suppress insect chitin, controls but the worm mite is double, and active high, the lasting period is long.Have and tag and stomach poison function, no systemic action.By suppressing chitinous formation, insect can not normally be casted off a skin and metamorphosis, especially to the control of normally casting off a skin and growing of larva, reach the purpose of desinsection.This medicament also has good blade face anelasticity.Can be used for preventing and treating the mite class and the insect of citrus, cotton, vegetables, soybean, fruit tree, seeding corn and other crops field mezzanine level, to predacious mite and insect safety.But relatively chrysanthemum ester insecticide is slow for the quick-acting of flufenoxuron insecticide, and influence is to the general control of insect, and is especially relatively poor to explosive pest controling effect.
The synergistic complex of agricultural chemicals is expanding prevention spectrum and the effective measures that improve desinsection quick-acting and lasting effect, still finds no the Pesticidal combination that closes gamma cyhalothrin and flufenoxuron up to now.
Lepidoptera pest as cabbage caterpillar, cotton bollworm, aphid, beet armyworm, the snout moth's larva of rice etc., increases gradually in present resistance, and the agent of agricultural chemicals list descends gradually to the effect of control of insect, and agriculture chemical compounding can obviously improve drug effect, and delays the generation of pest resistance.
Three, summary of the invention
1, goal of the invention
The purpose of this invention is to provide a kind of multifunctional insecticide composition and application thereof that prevents and treats lepidoptera pest.
2, technical scheme
For achieving the above object, gamma cyhalothrin and flufenoxuron assembly that the present invention will grow the lasting period obtain the new and effective multifunctional insecticide composition of a class.This insecticide has good preventive effect to the various pests that Lepidoptera is easy to generate resistance; And suppress insect the pesticide resistance of unitary agent (in gamma cyhalothrin or the flufenoxuron arbitrary) is produced.
A kind of Pesticidal combination is characterized in that it contains gamma cyhalothrin and flufenoxuron is an active ingredient, and wherein the weight ratio of gamma cyhalothrin and flufenoxuron is 0.1~30: 0.5~30.
Above-mentioned effective ingredient is present in the composition with the synergy effective dose.
The preferred weight ratio of gamma cyhalothrin and flufenoxuron is 0.5~20: 1~25.
The optimum weight ratio of gamma cyhalothrin and flufenoxuron is 1~10: 1~15.
Pesticidal combination of the present invention is that active ingredient and insecticides adjuvant and excipients are formulated with gamma cyhalothrin and flufenoxuron.
Pesticidal combination of the present invention is in the application that prevents and treats on the resistance lepidoptera pest, especially in the application that prevents and treats on the snout moth's larva of rice and cabbage caterpillar, the beet armyworm.
Above-described auxiliary agent is the one or more combinations in calcium dodecyl benzene sulfonate, alkylphenol polyoxyethylene, polyoxyethylene polyoxy third rare block compound (as the newborn 33# of farming), the polyoxyethylene nonylphenol ether, and excipient comprises dimethylbenzene, solvent naphtha.Above auxiliary agent, excipient can be singly with or and also can add other auxiliary material with reaching.
Measure through indoor synergism test and to show: is 156-238 by gamma cyhalothrin and flufenoxuron to the co-toxicity coefficient of beet exigua larvae, and test determination shows that all composite dose all has significant synergistic insecticidal action to two kinds of insects; Field control effectiveness test equally also shows the composite dose of effect that the insecticidal effect of beet tops moth larvae all is significantly higher than corresponding single agent agricultural chemicals that the present invention is all.
3, beneficial effect
Purpose of the present invention just provides the Pesticidal combination of a kind of gamma cyhalothrin and flufenoxuron, it compared with prior art, can produce higher cooperative synergism, can both improve the performance of its quick-acting, again can be arranged certain lasting period, overcome and delayed pest resistance to insecticide, the expanding prevention spectrum, desinsection speed is fast, has reduced drug cost, has alleviated toxicity.
The present invention especially can be used for preventing and treating the snout moth's larva of rice and resistance cabbage caterpillar, beet armyworm, and its effect is used apparently higher than its single agent.
Pesticidal combination of the present invention compared with prior art produces following beneficial effect: (1) is compared with single agent, and said composition has notable synergistic to lepidoptera pest, has obviously improved control efficiency; (2) one medicines are controlled more, and a dispenser can prevent and treat various pests simultaneously, reduce control recruitment cost; (3) alternative high-toxic pesticide, and reduce the field dosage significantly, effectively reduce environmental pollution and residue of pesticide; (4) have concurrently quick-acting and long-acting; (5) compare with single agent product, produce and the use cost reduction; (6) suppress the resistance enhancing of lepidoptera pest to agricultural chemicals; (7) reduction is to the toxicity of warm blooded animal.
Four, embodiment
Embodiments of the invention are the methods that adopt indoor bioassay and field trial to combine.Pass through indoor bioassay, the co-toxicity coefficient after clear and definite two kinds of medicaments are composite by a certain percentage earlier; On this basis, carry out field trial again.
Embodiment 1:
Take by weighing 2g gamma cyhalothrin, 2g flufenoxuron, calcium dodecyl benzene sulfonate 4g, phenethyl phenol polyethenoxy ether 3 g, add dimethylbenzene to 100g.The method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 4% gamma cyhalothrin 5 percent of hexaflumuron emulsifiable concentrate.
Carry out indoor synergy biologicall test, the selection beet exigua larvae is a target pest, and every processing repeats 3 times, and every concentration is handled 30, presses the abundant method of Sun Yun with the LC50 value and calculates co-toxicity coefficient:
The toxicity test effect of table 1 gamma cyhalothrin flufenoxuron=2: 2 pairs of beet armyworms
Concentration (μ g/mL) |
I |
II |
III |
Examination borer population (head) |
Dead borer population (head) |
Examination borer population (head) |
Dead borer population (head) |
Examination borer population (head) |
Dead borer population (head) |
100 |
10 |
9 |
10 |
7 |
10 |
8 |
20 |
10 |
8 |
10 |
7 |
10 |
8 |
4 |
10 |
6 |
10 |
6 |
10 |
8 |
0.8 |
10 |
6 |
10 |
5 |
10 |
5 |
0.16 |
10 |
5 |
10 |
3 |
10 |
4 |
0.032 |
10 |
1 |
10 |
2 |
10 |
3 |
0.0064 |
10 |
1 |
10 |
1 |
10 |
2 |
0.000128 |
10 |
2 |
10 |
0 |
10 |
2 |
CK |
10 |
2 |
10 |
0 |
10 |
0 |
Regression equation: Y=4.94158+0.528111X
Lethal concentration: LC50=1.290102 μ g/mL (95% confidence limit: 0.533609-3.89801 μ g/mL)
Embodiment is prevented and treated the field control effectiveness test of beet armyworm, and the contrast medicine is that the result is as follows:
Result of the test: unit: head/4
Handle (ppm AI) |
Extension rate |
Radix before the medicine |
Behind the medicine 3 days |
Behind the medicine 10 days |
Behind the medicine 15 days |
Residual borer population |
Preventive effect |
Residual borer population |
Preventive effect |
Residual borer population |
Preventive effect |
Embodiment 1 |
3000 |
25.8 |
10.0 |
59.3a |
2.25 |
90.4a |
1.5 |
92.9a |
2500 |
30.8 |
11.0 |
62.4a |
4.75 |
83.0a |
1.5 |
94.0a |
2000 |
29.8 |
10.5 |
63.1a |
2.75 |
89.9a |
1.0 |
95.8a |
2.5% gamma cyhalothrin EC |
2000 |
25.25 |
13.75 |
54.4c |
8.25 |
63.9b |
7.75 |
62.2b |
5% stuck gram EC |
2000 |
27.25 |
15.65 |
57.4c |
7.45 |
72.6b |
6.35 |
76.7b |
Contrast |
|
26.75 |
25.5 |
|
24.25 |
|
21.75 |
|
Annotate: a is illustrated on α=0.05 level remarkable, and b is illustrated on α=0.05 level variant, and c is illustrated on α=0.05 level not remarkable; A is illustrated on α=0.01 level remarkable, and B is illustrated on α=0.01 level variant, and C is illustrated on α=0.01 level not remarkable:
The above results shows, the complex composition of gamma cyhalothrin and flufenoxuron is compared with two single agent and to be had following advantage: (1) has significantly improved the omnidistance control efficiency to beet armyworm; (2) have the quick-acting of enhancing and long hold effect concurrently, the insecticidal effect of 3 days, 10 days and 15 days all is significantly higher than each single agent after the dispenser.
Embodiment 2:
Take by weighing 1g gamma cyhalothrin, 3g flufenoxuron, calcium dodecyl benzene sulfonate 4g, phenethyl phenol polyethenoxy ether 3g, add dimethylbenzene to 100g.The method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 4% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 3:
Take by weighing 5g gamma cyhalothrin, 7g flufenoxuron, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 12% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 4: take by weighing 0.1g gamma cyhalothrin, 3g flufenoxuron, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 3.1% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 5: take by weighing 5g gamma cyhalothrin, 7g flufenoxuron, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 12% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 6: take by weighing 0.5g gamma cyhalothrin, 3g flufenoxuron, calcium dodecyl benzene sulfonate 3g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 3.5% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 7: take by weighing 1g gamma cyhalothrin, 3g flufenoxuron, calcium dodecyl benzene sulfonate 3g, phenethyl phenol polyethenoxy ether 3g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 4% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 8: take by weighing 5g gamma cyhalothrin, 0.5g flufenoxuron, calcium dodecyl benzene sulfonate 5g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 5.5% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 9: take by weighing 2.5g gamma cyhalothrin, 0.5g flufenoxuron, calcium dodecyl benzene sulfonate 2g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 3% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 10: take by weighing 1g gamma cyhalothrin, 2g flufenoxuron, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 3% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 11: take by weighing 2g gamma cyhalothrin, 4g flufenoxuron, calcium dodecyl benzene sulfonate 2g, phenethyl phenol polyethenoxy ether 1g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 12% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 12: take by weighing 1g gamma cyhalothrin, 6g flufenoxuron, calcium dodecyl benzene sulfonate 2g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 7% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 13: take by weighing 1g gamma cyhalothrin, 5g flufenoxuron, calcium dodecyl benzene sulfonate 4g, phenethyl phenol polyethenoxy ether 2g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 6% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 14: take by weighing 2g gamma cyhalothrin, 5g flufenoxuron, calcium dodecyl benzene sulfonate 3g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 7% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 15: take by weighing 1g gamma cyhalothrin, 3g flufenoxuron, calcium dodecyl benzene sulfonate 2g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 4% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 16: take by weighing 5g gamma cyhalothrin, 0.25g flufenoxuron, calcium dodecyl benzene sulfonate 2g, phenethyl phenol polyethenoxy ether 2g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 5.25% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 17: take by weighing 2g gamma cyhalothrin, 1.5g flufenoxuron, calcium dodecyl benzene sulfonate 2g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 3.5% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 18: take by weighing 2g gamma cyhalothrin, 3g flufenoxuron, calcium dodecyl benzene sulfonate 2g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 5% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 19: take by weighing 30g gamma cyhalothrin, 1g flufenoxuron, calcium dodecyl benzene sulfonate 14g, phenethyl phenol polyethenoxy ether 15g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 31% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 20: take by weighing 15g gamma cyhalothrin, 5g flufenoxuron, calcium dodecyl benzene sulfonate 15g, phenethyl phenol polyethenoxy ether 10g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 20% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 21: take by weighing 10g gamma cyhalothrin, 0.5g flufenoxuron, calcium dodecyl benzene sulfonate 10g, phenethyl phenol polyethenoxy ether 8g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 10.5% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 22: take by weighing 10g gamma cyhalothrin, 1g flufenoxuron, calcium dodecyl benzene sulfonate 10g, phenethyl phenol polyethenoxy ether 8g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 11% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 23: take by weighing 9g gamma cyhalothrin, 7.5g flufenoxuron, calcium dodecyl benzene sulfonate 10g, phenethyl phenol polyethenoxy ether 8g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 12% gamma cyhalothrin flufenoxuron missible oil.
Embodiment 24: take by weighing 6g gamma cyhalothrin, 6g flufenoxuron, calcium dodecyl benzene sulfonate 8g, phenethyl phenol polyethenoxy ether 5g, add dimethylbenzene to 100g, the method that above raw material is prepared missible oil routinely drops in the mixing kettle mixes, and forms preparation 12% gamma cyhalothrin flufenoxuron missible oil.