Background technology
Fluorine pyridine worm amine nitrile (sulfoxaflor) belongs to sulfoximide insecticide, acts on the nervous system of insect, can through leaf, stem, root absorption and entering in plant corpus.Have efficient, broad spectrum of activity, usage amount is low.Test display, it has remarkable control effects to U.S. tarnished plant bug (Lygusline-olaris), has preventive effect equally to Brown Planthopper.Other controlling objects comprise aphid, aleyrodid and scale insect.Research shows that the insecticide of this composition and other chemical classes is without cross resistance.
Nylar (pyriproxyfen) is the insect growth regulator, IGR that phenylate class upsets insect growth, belongs to the novel pesticide of juvenoid, has interior suction transfer activity, low toxicity, lasting period is long, to crop safety, to fish low toxicity, the feature little to eco-environmental impact.Have good control efficiency to Bemisia tabaci, scale insect, diamond-back moth, beet armyworm, prodenia litura, pear psyllid, trialeurodes vaporariorum etc., this product has good control efficiency to the sanitary insect pest such as fly, mosquito simultaneously.Nylar has suppression mosquito, fly larvae pupation and emergence effect.Mosquito, fly larva contact this medicament, substantially all dead in pupa time, can not sprout wings.
Trialeurodes vaporariorum (Trialeurodesvaporariorum) belongs to Homoptera Aleyrodidae.Be a kind of worldwide insect, all there is generation China various places, are the important pests of long-term cropping in vegetable plot, field, greenhouse, booth.Belong to sucking mouth parts, adult and nymph sucking plant juice, killed blade chlorisis, flavescence, wilting, even complete stool is withered.
Summary of the invention
The object of this invention is to provide that a kind of insecticidal activity is high, lasting effect is long, the high and low poison of quick-acting, environmental protection Pesticidal combination.Be specifically related to fluorine pyridine worm amine nitrile and Nylar is the composition of active ingredient.
In above-mentioned Pesticidal combination, the weight ratio of fluorine pyridine worm amine nitrile and Nylar is 1:60 ~ 60:1.
Utilize above-mentioned Pesticidal combination, be equipped with the known auxiliary agent of those skilled in that art, formulation of the present invention can be made with the known method of those skilled in that art.Its formulation that can process is suspending agent and water dispersible granules.
The advantage that the present invention has and beneficial effect: 1, good disinsection effect, the lasting period is long; 2, active ingredient is new, with existing composition without cross resistance 3, formulation safety, environmental protection, can better play drug effect; 4, complex preparation, has synergistic effect.
First applicant has carried out the research of recipe determination to fluorine pyridine worm amine nitrile and Nylar, the insecticidal activity of fluorine pyridine worm amine nitrile, Nylar two kinds of active ingredients is very high, for the action character of two kinds of compositions, indoor biometrics object is decided to be trialeurodes vaporariorum, specific experiment situation and result as follows:
Experimental drug adopts 96% fluorine pyridine worm amine nitrile and the former medicine of 95% Nylar, according to the matched proportion density of setting, is mixed with the liquid of desired concn, for subsequent use.With reference to pesticide indoor bioassay test rule (agricultural industry criteria NY/T1154.14-2008), test adopts immersion method.The process of trialeurodes vaporariorum: appropriate cucumber leaves is soaked into the liquid 15s, takes out and naturally dry in ventilation, is positioned in the culture dish of diameter 9cm, and trialeurodes vaporariorum 3 instar larvae is placed in culture dish according to 15/ware, and upper lid layer filter paper, adds a cover mark.If clear water control treatment, each process repeats for 4 times.Be positioned over 27 DEG C, 14h illumination cultivation is indoor, check result after 3d.Touch polypide gently with writing brush, be reactionlessly considered as dead worm.Data SPSS software statistics process.Obtain toxicity regression formula, the lethal concentration of 50, correlation coefficient etc., and obtain co-toxicity coefficient by the abundant method of Sun Yun.
The co-toxicity coefficient method representation that the co-toxicity of mixture preparation adopts Sun Yun abundant:
The theoretical toxicity index TTI=∑ of mixture preparation (percentage of this pharmaceutically active ingredient of the toxicity index ATI of certain medicine × in mixture).
Be synergistic effect when CTC is greater than 120, being antagonism when being less than 80, is addition when 80 ~ 120.
Table 1 different ratio is to the toxicity test result of trialeurodes vaporariorum
Analyze above-mentioned data result to show, fluorine pyridine worm amine nitrile and Nylar different proportion composite time, the co-toxicity coefficient of all compounded formulas is all greater than 120, has obvious synergistic effect.Illustrate after composite for two kinds of active ingredients, good synergistic effect can be had.
Following instantiation is in order to further describe the present invention, but the present invention is absolutely not only only limitted to these embodiments following.In formula, percentage is all weight percentage, and the former medicine used and auxiliary agent are all bought from other producers.
Formulation examples is as follows:
Example one: 36.6% fluorine pyridine worm amine nitrile Nylar suspending agent
Example two: 24.8% fluorine pyridine worm amine nitrile Nylar water dispersible granules
Example three: 11% fluorine pyridine worm amine nitrile Nylar water dispersible granules
Example four: 18% fluorine pyridine worm amine nitrile Nylar water dispersible granules
Example five: 15% fluorine pyridine worm amine nitrile Nylar suspending agent
Example six: 10% fluorine pyridine worm amine nitrile Nylar suspending agent
Example seven: 30% fluorine pyridine worm amine nitrile Nylar water dispersible granules
Example eight: 22% fluorine pyridine worm amine nitrile Nylar suspending agent
Example nine: 18.6% fluorine pyridine worm amine nitrile Nylar water dispersible granules
Example ten: 30.5% fluorine pyridine worm amine nitrile Nylar water dispersible granules
According to above-mentioned ten examples, carry out the field experiment of 15% fluorine pyridine worm amine nitrile Nylar suspending agent and other compounded formulas control cucumber trialeurodes vaporariorum, simultaneously by the Contrast on effect with 50% fluorine pyridine worm amine nitrile water dispersible granules and 10% Nylar suspending agent single dose, verify composite after synergistic effect.Test site is area, Shouguang, Shandong Province, and the time is on June 2nd, 2013, test totally four process, each process three repetition, community randomized arrangement, plot area 30m
2, the planting habit of planting habit all with local of all communities is identical, records the synoptic data on the dispenser same day and a week thereafter, specific as follows:
Table 2 duration of test meteorological data
Investigation standard is: investigate according to standard NY/T1464.6-2007, and 20 leaves, in crop, are fixedly chosen in each community, investigation borer population alive, the larva number of record trialeurodes vaporariorum.Before dispenser, the trialeurodes vaporariorum number of investigation cucumber leaves; 3 days and investigation in 7 days borer population alive after medicine, calculate control efficiency respectively.Each numerical value is according to following formulae discovery, and concrete result of the test is as follows:
Table 315% fluorine pyridine worm amine nitrile Nylar suspending agent and other compounded formulas are to the field control effectiveness test of trialeurodes vaporariorum
As can be seen from above-mentioned data, different formulations carries out in composite process, using under identical effective dose, after fluorine pyridine worm amine nitrile and pyriproxyfen compound, the preventive effect of preparation will apparently higher than two kinds of single doses, the control efficiency of complex preparation 7d after medicine has all exceeded 83%, and the preventive effect of two single doses is respectively 52.96% and 41.32%, has good synergistic effect after visible two kinds of compositions are composite.Meanwhile, complex preparation 7d preventive effect after medicine is greater than 3d after medicine, compared with single dose, extends the lasting period.Both are environmental protection formulation, environmentally safe close friend at composite formulation, reduce peasant's amount of labour, have good economic benefit.