Background technology
Because acaricidal long-term single use causes the enhancing of harmful mite resistance, control efficiency is affected, and how to guarantee that the continuity of existing agricultural chemicals is used, and reduces the pesticide producing use cost, and the potential value of excavating agricultural chemicals is a convenient way.Constantly can solve the resistance problem of harmful mite through reasonably composite, but also can improve preventive effect agricultural chemicals.
Hexythiazox, English hexythiazox by name, chemical molecular formula is C
17H
21ClN
2O
2S.Hexythiazox has strong ovum extremely, kills the children if the characteristic of mite is invalid to the one-tenth mite the harmful mite of various plants, but the ovum that female adult worm produced that touches soup is had the effect of inhibition hatching.With action of contace poison is main, and plant tissue is had good penetration property, absorption effect in not having.
Spiral shell mite ester, active ingredient are spirodiclofen (English spirodiclofen by name, chemical molecular formula C
21H
24Cl
2O
4).Mechanism of action is the lipogenesis that suppresses in the pest mite body.Do not have cross resistance between it and the existing miticide, be applicable to be used for preventing and treating the pest mite class that existing miticide is produced resistance.Acaricidal broad spectrum adaptability of spider, yellow spider, rust Pi lice, yellow tea mite, carmine spider mite and two-spotted spider mite, etc. have a good control effect, can be used for citrus, grapes and other fruit trees and eggplant , peppers, tomatoes and other solanaceous crops mites treatment.In addition, insects such as pear sucker, oystershell scale and leafhopper class there is the well double effect of controlling.Low toxicity, low-residual, safety are good, and be as safe as a house to crop under different temperature conditions, to people and animals and crop safety, low toxicity, is suitable for nuisanceless production.Spiral shell mite ester can mix existing usefulness with most of agricultural chemicals (except strong basicity agricultural chemicals and the copper agent) at present, uses with existing miticide, both can improve quick-acting, helps the resistance management of mite evil again.
Summary of the invention
The objective of the invention is Hexythiazox and spiral shell mite ester are carried out composite a kind of efficient, low toxicity, quick-acting is good and the lasting period is grown the miticide composition of providing.
Another object of the present invention is that said composition is applied to prevent and treat fruit tree evil mite.
Technical scheme of the present invention: with Hexythiazox and spiral shell mite ester is active ingredient, and the ratio of quality and the number of copies of Hexythiazox and spiral shell mite ester is 5:1~15:1, and all the other are to allow in the agricultural chemicals to use and the acceptable auxiliary element.
Composition pesticide of the present invention can adopt known method to be prepared into suitable agricultural and go up any one formulation of using, and reasonable formulation is suspending agent, aqueous emulsion, missible oil, microemulsion.
The auxiliary element that uses in the present composition comprises that solvent, dispersant, stabilizing agent, emulsifier, antifreezing agent, thickener etc. and other are of value to active ingredient stablizes and bring into play drug effect in preparation known substance; All be the various compositions of using or allow use in the pesticidal preparations always; Do not have special qualification, concrete composition and consumption require to confirm through simple test according to prescription.
Product described in the invention can finished product preparation form provide, promptly each material mixes in the composition, the form that the composition of composition also can single agent provides, and directly in jar or bucket, mixes before the use, is diluted to needed concentration then.The frequency of administration of the present composition and amount of application change with weather condition and crop state variation, can reach the purpose of control through using suitable formulation.
The present composition is used to prevent and treat fruit tree evil mite.
Compared with prior art, beneficial effect of the present invention is: 1, two kinds of active ingredient is composite has an obvious synergistic effect, and miticidal effect significantly improves.2, the quick-acting of composition is strong, and drug effect is more lasting.3, two kinds of active ingredients are composite, and there is not cross resistance in mechanism of action uniqueness, reduced the agricultural chemicals usage amount, thereby reduced cost and reduced the pollution to environment, and it applies huge economic benefit and social benefit.
Embodiment
In order to make the object of the invention, technical scheme and advantage more short and sweet, the present invention describes with following specific embodiment, but the present invention only limits to these examples absolutely not.The following stated is merely the present invention embodiment preferably, only is used to describe the present invention, can not be interpreted as the restriction to scope of the present invention.Should be pointed out that all any modifications of within spirit of the present invention and principle, being made, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with accompanying claims.
In following examples, unless otherwise indicated, all percentages all are weight percentage.
FORMULATION EXAMPLE 1: take by weighing 10% Hexythiazox, 2% spiral shell mite ester, 3% farming breast, 600,3% farming breast, 2201,3% lignosulfonates, 0.2% xanthans, 6% ethylene glycol, 0.5% organosilicon, deionized water is mended to 100%.After the above-mentioned raw materials mixing, emulsification makes 12% Hexythiazox spiral shell mite ester suspending agent through high speed shear.
FORMULATION EXAMPLE 2: take by weighing 15% Hexythiazox, 1% spiral shell mite ester, 5% Nongru-700 # (alkyl phenol formaldehyde resin polyoxyethylene ether), 2% Tween-60 # (sorbitan monostearate polyoxyethylene groups ether), 2% alkylphenol-polyethenoxy base ether formaldehyde condensation products phosphate, 5% propane diols, 0.2% xanthans, deionized water is mended to 100%.After the above-mentioned raw materials mixing, emulsification makes 16% Hexythiazox spiral shell mite ester suspending agent through high speed shear.
FORMULATION EXAMPLE 3: take by weighing 10% Hexythiazox, 1% spiral shell mite ester, 4% agricultural newborn 500# (calcium dodecyl benzene sulfonate), 3%Span-60# (sorbitan monostearate), 3% agricultural newborn 2201#, 2% triphenyl phosphite, xylol is mended to 100%.Above-mentioned raw materials is mixed back fully dissolving, mixing, make 11% Hexythiazox spiral shell mite emulsifiable concentrate.
FORMULATION EXAMPLE 4: take by weighing 13% Hexythiazox, 1% spiral shell mite ester, 6% emulsifier such as the newborn 500# of farming (calcium dodecyl benzene sulfonate), 2% agricultural newborn 2201#, 3% agricultural newborn 600#, 1% methyl alcohol, 6% xylol, 1.2% epoxychloropropane, 0.4% aceticanhydride; Deionized water is mended to 100%; With above-mentioned raw materials fully dissolve, mixing, make 14% Hexythiazox spirodiclofen microemulsion.
FORMULATION EXAMPLE 5: take by weighing 12% Hexythiazox, 1% spiral shell mite ester, 6% agricultural newborn 600# phosphate (triphen ethyl-phenol polyoxyethylene ether phosphate), 2% Tween-60 # (sorbitan monostearate polyoxyethylene groups ether), 3% agricultural newborn 600#, 8% xylol, 1% triphenyl phosphite, 2% ethylene glycol, 1.5% xanthans, 0.8% polyvinyl alcohol, 0.2% benzoic acid, deionized water is mended to 100%.Above-mentioned raw materials is fully dissolved the mixing shearing make 13% Hexythiazox spirodiclofen water emulsion.
Field efficacy embodiment 1: the composite test of pesticide effectiveness of Hexythiazox and spiral shell mite ester to citrus red mite.
1, test medicine: (1) 12% Hexythiazox spiral shell mite ester suspending agent (FORMULATION EXAMPLE 1 of the present invention); (2) 5% Hexythiazox missible oil (contrast medicament); (3) 24% spiral shell mite ester suspending agents (contrast medicament).
2, test period: in August, 2010, citrus red mite is started the phase.
3, controlling object: citrus red mite.
4, application method: convert the water even spraying.
5, test place: the Chen Jiang of Huizhou City, Guangdong Province one oranges and tangerines garden.
6, result of the test: see table 1.3 days, 7 days, 15 days, 30 days preventive effect can be found out after the dispenser: 12% Hexythiazox spiral shell mite ester suspending agent of the present invention is outstanding to the citrus red mite control efficiency; Quick-acting and persistence all have significant improvement than single agent; Dosage obviously reduces simultaneously; Reduce use cost, reduced the agricultural chemicals environmental pollution.
The field control effectiveness test result of table 1, control citrus red mite.
Field efficacy embodiment 2: the composite test of pesticide effectiveness of Hexythiazox and spiral shell mite ester to European red mite.
1, test medicine: (1) 13% Hexythiazox spirodiclofen water emulsion (FORMULATION EXAMPLE 5 of the present invention); (2) 5% Hexythiazox missible oil (contrast medicament); (3) 24% spiral shell mite ester suspending agents (contrast medicament).
2, test period: in May, 2010, European red mite is started the phase.
3, controlling object: European red mite.
4, application method: convert the water even spraying.
5, test place: Mei County, Baoji, Shaanxi province city.
6, result of the test: see table 2.3 days, 7 days, 15 days, 30 days preventive effect can be found out after the dispenser: 13% Hexythiazox spirodiclofen water emulsion of the present invention is outstanding to the European red mite control efficiency; Quick-acting and persistence all have significant improvement than single agent; Dosage obviously reduces simultaneously; Reduce use cost, reduced the agricultural chemicals environmental pollution.
The field control effectiveness test result of table 2, control European red mite.