CN107736382A - It is a kind of to contain the composition pesticide for killing aphid element and pymetrozine - Google Patents

Abstract

The invention discloses a kind of containing the composition pesticide for killing aphid element and pymetrozine, the composition pesticide contains active ingredient pymetrozine and kills aphid element, and pymetrozine and the mass fraction ratio for killing aphid element are 90:1~9:1, it is preferably in a proportion of 60:1~20:1, further more preferably ratio is 39:1~29:1, further it is preferably in a proportion of 39:1 and 29:1, pymetrozine and kill aphid element in the proportion there is synergistic effect to the prevention effect of planthopper, Bemisia tabaci, pymetrozine and kill aphid element and can be processed into pesticidal preparations, pymetrozine and kill aphid quality amount summation account for pesticidal preparations gross weight percentage composition be 0.1%~50%, remaining is insecticides adjuvant, and said composition can be used for preventing and treating planthopper, tomato Bemisia tabaci.

Description

It is a kind of to contain the composition pesticide for killing aphid element and pymetrozine

Technical field

The invention belongs to synergetic pesticide composition field, specifically provide and a kind of containing active ingredient pymetrozine and kill aphid element Synergetic pesticide composition.

Background technology

Pymetrozine (Pymetrozine) belongs to pyridines or Triazinone insecticide, is brand-new non-killing livestock property insecticide, Developed earliest by Ciba-Geigy company of Switzerland in 1988, the product shows excellent to the sucking pest of various crop Prevention effect, have the characteristics that efficiently, low toxicity, high selectivity, to Environment Ecological Safe, its preparation can be used for preventing and treating largely Homoptera pest, especially aphid section, Aleyrodidae, Cicadellidae etc..Suitable for vegetables, rice, melon and fruit and a variety of field crops.

It is light gray streptomycete Hangzhou mutation (Streptomyces griseolus var.hangzhouensis to kill aphid element N.var.YANet FANG 1978) caused by antiinsect antibiotic, there is stronger contact toxicity to insects such as planthopper, mite class, Efficiently, low toxicity, low-residual, can effectively prevent and treat Bemisia tabaci and planthopper.

Planthopper, Piroplasmea Homoptera (Homoptera) Delphacidae (Delphacidae) insect, popular name fire midge worm.Inhaled with piercing Plant juice is caused harm the crops such as rice.Frequent species has brown paddy plant hopper (Nilaparvata lugens), white backed planthopper (Sogatella furcifera) and small brown rice planthopper (Laodelphax striatellus).

Bemisia tabaci [Bemisia tabaci (Gennadius)] is a kind of global insect.It is primary in the torrid zone and Asia heat Zone, since the 1980s, with worldwide trade contacts, Bemisia tabaci is by flowers and other industrial crops Nursery stock is spread rapidly, in wide-scale distribution all over the world and population outbreak, as the U.S., India, Pakistan, the Sudan and with Important pests in the National agricultural production such as color row.Bemisia tabaci (Bemisia tabaci) is to endanger the invader of maximum in the world One of kind, crushing harm is caused to many crops of China and other multiple countries and regions in phagocytic process.One The research announcement that item is completed in China and Australia, the mating behavior of this insect can help its to invade indigenous Bemisia tabaci Manor, the little indigenous Bemisia tabaci of harmfulness is become extinct and substituted.

The single use of agricultural chemicals can bring resistance risk, and agriculture chemical compounding is the effective way for solving resistance problem.

Develop new product bactericide is expensive, the cycle is grown, and by contrast, exploitation is efficient, less toxic, low-residual with research Compounding have with mixture invest small, lead time it is short and by attention both domestic and external, it is numerous and confused to increase development dynamics.

Pymetrozine has no report with the combination for killing aphid element.

The content of the invention

It is an object of the present invention to provide it is a kind of containing pymetrozine and kill aphid element composition pesticide, for prevent and treat tomato Bemisia tabaci, Planthopper.

The present invention is achieved through the following technical solutions：

It is a kind of containing kill aphid element composition pesticide, containing active ingredient pymetrozine and kill aphid element, pymetrozine and kill aphid element Mass fraction ratio is 90:1~9:1, it is preferably in a proportion of 60:1~201, further preferred ratio is 39:1~29:1, more enter one Step is preferably in a proportion of 39:1 and 29:1.

The described composition pesticide plain with aphid is killed containing pymetrozine, containing active ingredient pymetrozine and aphid element is killed, is also contained There is insecticides adjuvant, in order to be processed into insecticides adjuvant, wherein pymetrozine and kill the gross weight percentage composition of aphid element in the composition For 0.1%~50%, remaining is insecticides adjuvant.

The described composition pesticide plain with aphid is killed containing pymetrozine, can be processed into aqueous suspension agent, aqueous emulsion, micro emulsion Agent.

The aqueous suspension agent formulation weight percent forms：Pymetrozine 0.1~45%, aphid element 0.1~5% is killed, point Powder 0.1~13%, wetting agent 0.1~12%, thickener 0.1~1%, antifreezing agent 0.1~2%, deionized water carrier are supplied To 100%；Specifically production stage is：Active ingredient and other auxiliary agents are mixed, disperses through high speed shear, are sanded in sand mill Afterwards, high dispersive, stable suspension system are formed in water-medium, the aqueous suspension agent of corresponding weight percentage is made.

The aqueous emulsion agent weight percent forms：Pymetrozine 0.1~45%, aphid element 0.1~5% is killed, emulsified Agent 0.1~15%, solvent 0.1~22%, dispersant 0.1~6%, stabilizer 0.1~1%, antifreezing agent 0.1~6%, defoamer 0.1~1%, deionized water carrier complements to 100%；Specifically production stage is：By above-mentioned active ingredient, solvent, emulsifying agent, point Powder and stabilizer are mixed to form oil phase, and antifreezing agent dissolves in water forms aqueous phase, and slowly oil phase is added under cutter effect Enter in aqueous phase, and continue shearing 30 minutes, that is, the aqueous emulsion is made.

The micro-emulsion form weight percent forms：Pymetrozine 0.1~45%, kill aphid element 0.1~5%, solvent 0.2-16%, stabilizer 0.1~8%, emulsifying agent 0.1~9%, penetrates into 0.1~3%, antifreezing agent 0.1~5%, deionized water Carrier complements to 100%；Specifically production stage is：Active ingredient is completely dissolved with solvent, then adds emulsifying agent, stably Agent, bleeding agent, antifreezing agent are well mixed, and are eventually adding deionized water, after being sufficiently stirred, you can the microemulsion is made.

Described auxiliary component is solvent, emulsifying agent, wetting agent, dispersant, stabilizer, antifreezing agent, thickener, bonding Agent, disintegrant, defoamer, bleeding agent, preservative, all it is to commonly use in pesticidal preparations or allow the composition used, has no special limit Fixed, specific composition and dosage are according to recipe requirements by simply testing determination.

Described is applied to preventing and treating planthopper, tomato Bemisia tabaci containing the composition pesticide for killing aphid element.

Compared with prior art, the advantage of the invention is that：

1st, pymetrozine and kill aphid element compounded in the range of certain proportion to tomato Bemisia tabaci, Brown Planthopper have collaboration increase Effect acts on.

2nd, pymetrozine and aphid element two kinds of active ingredients compounding is killed, reduces Pesticide use amount, reduce use cost, mitigate Pollution to environment, the drug-fast service life for producing, adding agricultural chemicals of pest and disease damage is delayed.

Embodiment

According to the abundant methods of Sun Yun, the synergy of pharmacy mix is evaluated according to co-toxicity coefficient (CTC), i.e. CTC≤80 are association Same antagonism, 80 ＜ CTC ＜ 120 are joint action of antagonism, and CTC >=120 are synergistic function.Survey toxicity index (ATI)=(LC of standard agent₅₀The LC of/reagent agent₅₀)×100；The toxicity index of theoretical toxicity index TTI=A medicaments × In mixture in toxicity index × mixture of the percentage composition+B medicaments of A medicaments B medicaments percentage composition；Co-toxicity coefficient (CTC)= [mixture actual measurement toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100；；

The table 1 of embodiment one：(contact toxicity tries pymetrozine with killing toxicity measure of the aphid element to planthopper (brown paddy plant hopper) Test, drop method, investigate within 24 hours after medicine, test method is killed with reference to NYT1154.1-2006 farm-chemical indoor determination test rules Worm agent part 1：Contact toxicity tests drop method).

Reagent agent	Proportioning	LC50(μg/ml)	ATI	TTI	CTC
						Pymetrozine	-	3.150	100.00
Kill aphid element	-	0.224	1406.25
						Pymetrozine：Kill aphid element	90:1	2.335	134.90	114.35	117.97
Pymetrozine：Kill aphid element	60:1	2.014	156.41	121.41	128.82
						Pymetrozine：Kill aphid element	39:1	1.422	221.52	132.66	166.99
Pymetrozine：Kill aphid element	29:1	1.337	235.60	143.54	164.13
						Pymetrozine：Kill aphid element	20:1	1.299	242.49	162.20	149.50
Pymetrozine：Kill aphid element	9:1	1.245	253.01	230.63	109.71

The data result that table 1 is recorded shows that pymetrozine is with killing aphid element quality parts ratio example 60:1~20:It is right in the range of 1 The contact toxicity of brown paddy plant hopper has synergistic effect, and co-toxicity coefficient is more than 120；Pymetrozine is with killing aphid element quality parts ratio example 39:1 ~29:There is synergistic effect to the contact toxicity of brown paddy plant hopper in the range of 1, co-toxicity coefficient is more than 160；And pymetrozine is with killing aphid quality It is 90 to measure number ratio:1 and mass fraction ratio be 9:1 does not have synergistic effect, and co-toxicity coefficient is less than 120.

The table 2 of embodiment two：Pymetrozine with killing toxicity measure of the aphid element to Bemisia tabaci (test, drop by contact toxicity Method, investigate within 24 hours after medicine, test method is with reference to NYT 1154.1-2006 farm-chemical indoor determination test rules insecticide the 1 part：Contact toxicity tests drop method).

Reagent agent	Proportioning	LC50(μg/ml)	ATI	TTI	CTC
						Pymetrozine	-	24.522	100.00
Kill aphid element	-	0.267	9184.27
						Pymetrozine：Kill aphid element	90:1	11.440	214.35	199.83	107.27
Pymetrozine：Kill aphid element	60:1	7.250	338.23	248.92	135.88
						Pymetrozine：Kill aphid element	39:1	4.630	529.63	327.11	161.91
Pymetrozine：Kill aphid element	29:1	3.550	690.76	402.81	171.49
						Pymetrozine：Kill aphid element	20:1	3.420	717.02	532.58	134.63
Pymetrozine：Kill aphid element	9:1	3.110	788.49	1008.43	78.19

The data result that table 2 is recorded shows that pymetrozine is with killing aphid element quality parts ratio example 60:1~20:It is right in the range of 1 The toxicity of Bemisia tabaci has synergistic effect, and co-toxicity coefficient is more than 130；Pymetrozine is with killing aphid element quality parts ratio example 39:1 ~29:There is synergistic effect to the toxicity of Bemisia tabaci in the range of 1, co-toxicity coefficient is more than 160；And pymetrozine is with killing aphid quality It is 90 to measure number ratio:1 and mass fraction ratio be 9:The toxicity of 1 pair of Bemisia tabaci does not have synergistic effect then, altogether poison Coefficient is less than 120.

The pymetrozine of embodiment 3 40% kills aphid element aqueous suspension agent

Pymetrozine 39%, kill aphid element 1%, be AEO 13%, alkyl polyoxyethylene ether sodium sulfonate 5%, poly- Ethylene glycol 3%, xanthans 0.5%, urea 0.1%, deionized water supplies 100%；By above-mentioned active ingredient, wetting agent, disperse Agent, antifreezing agent, thickener and defoamer through high speed shear is scattered, is sanded in sand mill, the high dispersive that is formed in water-medium, Stable suspension system, you can 40% pymetrozine is made and kills aphid element aqueous suspension agent.

The pymetrozine of example IV 40% kills aphid element aqueous emulsion

Pymetrozine 39%, kill aphid element 1%, sec-Butyl Acetate 15%, alkylaryl polyoxyethylene poly-oxygen propylene aether 4%, fat Fat acid APEO 12%, glycerine 1%, deionized water supplies 100%；By above-mentioned active ingredient, solvent, emulsifying agent, point Powder and stabilizer are mixed to form oil phase, and antifreezing agent dissolves in water forms aqueous phase, and slowly oil phase is added under cutter effect Enter in aqueous phase, and continue shearing 30 minutes, 40% pymetrozine is made and kills aphid element aqueous emulsion.

The pymetrozine of embodiment 5 40% kills aphid element microemulsion

Pymetrozine 39%, kill aphid element 1%, epoxidized soybean oil 7%, cyclohexanone 3%, n-butanol 4%, organosilicon 2%, the third three Alcohol 2%, deionized water supplies 100%；Active ingredient is completely dissolved with solvent, then adds emulsifying agent, stabilizer, infiltration Agent, antifreezing agent are well mixed, and are eventually adding deionized water, after being sufficiently stirred, you can 40% pymetrozine is made and kills aphid element micro emulsion Agent.

40% pymetrozine obtained by the example IV of embodiment six kills aphid element aqueous emulsion, the 40% pyrrole aphid of gained of embodiment five Ketone kills aphid element microemulsion, 40% pymetrozine of gained of embodiment three kills aphid element suspending agent preventing and treating tomato Bemisia tabaci, planthopper field Between the test of pesticide effectiveness (cauline leaf spray-on process, every mu of 30 kilograms of injection flow rate, after medicine 7 days investigate)

Table 3 respectively handles chemical control tomato Bemisia tabaci, planthopper field control effectiveness test

The result of table 3 shows that 40% pymetrozine kills aphid element aqueous emulsion, 40% pymetrozine kills aphid element microemulsion, 40% pyrrole Aphid ketone kills 15 grams/ha of aphid element suspending agent effective ingredient consumption and preferably preventing and treating effect is respectively provided with to planthopper, tomato Bemisia tabaci Fruit.

Synergetic pesticide composition of the present invention is in addition to available for preventing and treating rice hoppers, it may also be used for preventing and treating Cicadellidae insect, Other Delphacidae insects and Aphidoidea insect.

Claims (10)

1. It is 1. a kind of containing the composition pesticide for killing aphid element, it is characterised in that：Containing active ingredient pymetrozine and kill aphid element, pymetrozine and The mass fraction ratio for killing aphid element is 90:1~9:1.
2. 2. composition pesticide according to claim 1, it is characterised in that：The pymetrozine and the quality parts ratio for killing aphid element Example is 60:1~20:1.
3. 3. composition pesticide according to claim 1, it is characterised in that：The pymetrozine and the quality parts ratio for killing aphid element Example is 39:1~29:1.
4. 4. composition pesticide according to claim 1, it is characterised in that：The pymetrozine and the quality parts ratio for killing aphid element Example is 39:1.
5. 5. composition pesticide according to claim 1, it is characterised in that：The pymetrozine and the quality parts ratio for killing aphid element Example is 29:1.
6. 6. according to the composition pesticide described in Claims 1 to 5 any one, it is characterised in that：The pymetrozine and kill aphid element Gross weight percentage composition in the composition is 0.1%~50%, and remaining is insecticides adjuvant.
7. 7. composition pesticide according to claim 6, it is characterised in that：The formulation of composition pesticide is aqueous suspension agent, water Emulsion or microemulsion.
8. A kind of 8. preparation method of the aqueous suspension agent described in claim 7, it is characterised in that：Pymetrozine 39%, kill aphid element 1%, AEO 13%, alkyl polyoxyethylene ether sodium sulfonate 5%, polyethylene glycol 3%, xanthans 0.5%, urea 0.1%, deionized water supplies 100%；Above-mentioned active ingredient, wetting agent, dispersant, antifreezing agent, thickener and defoamer are passed through High speed shear is scattered, is sanded in sand mill, high dispersive, the stable suspension system formed in water-medium, you can be made 40% pymetrozine kills aphid element suspending agent.
9. A kind of 9. preparation method of the aqueous emulsion described in claim 7, it is characterised in that：Pymetrozine 39%, kill aphid element 1%, vinegar The secondary butyl ester 15% of acid, alkylaryl polyoxyethylene poly-oxygen propylene aether 4%, aliphatic acid polyethenoxy ether 12%, glycerine 1%, go Ionized water supplies 100%；Above-mentioned active ingredient, solvent, emulsifying agent, dispersant and stabilizer are mixed to form oil phase, antifreezing agent Dissolving forms aqueous phase in water, and slowly oil phase is added in aqueous phase under cutter effect, and continues shearing 30 minutes, is made 40% pymetrozine kills aphid element aqueous emulsion.
10. 10. kill application of the composition pesticide of aphid element in preventing and treating planthopper, tomato Bemisia tabaci containing described in claim 1.