CN104430403A

CN104430403A - Pesticide composition containing emamectin benzoate and application of the composition

Info

Publication number: CN104430403A
Application number: CN201410687021.5A
Authority: CN
Inventors: 孙素一
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-11-25
Filing date: 2014-11-25
Publication date: 2015-03-25

Abstract

The invention discloses a pesticide composition containing emamectin benzoate and application of the composition. The composition comprises emamectin benzoate (A) and furan tebufenozide (B), wherein the weight ratio of emamectin benzoate to furan tebufenozide is (1-30) to (30-1). The composition is prepared into various pesticide formulations by adding components such as an emulsifier, a cosolvent, an antifreezer, a defoamer, a thickener, a stabilizer and a pH regulator, but preferably the composition is prepared into an environment-friendly water-based suspending agent preparation; the composition has a synergistic pesticide effect and can delay pesticide resistance of pests and prevent and control various pests such as delphacidae, aleyrodidae, aphides, thrips, diamondback moths, beet armyworms and mites on crops.

Description

A kind of Pesticidal combination containing emamectin-benzoate and uses thereof

Technical field

The present invention relates to technical field of pesticide preparations, be specifically related to a kind of Pesticidal combination containing emamectin-benzoate and uses thereof.

Background technology

Emamectin-benzoate: molecular formula: Bla:C49H75NO13.C7H6O2Blb:C48H73NO13.C7H6O2, English name: Emamect in Benzoate, molecular weight: Bla:1008.26Blb:994.23.Former medicine is white or light yellow crystalline powder; Fusing point: 141-146 DEG C; Be dissolved in acetone and methyl alcohol, be slightly soluble in water, be insoluble to hexane; Stability: stable under the condition of storage usually.

Emamectin-benzoate is the new and effective semisynthetic antibiotics insecticide of one of synthesis from fermented product AVERMECTIN B1, it has super-high-efficient, low toxicity (preparation is closely nontoxic), noresidue, the nuisanceless feature waiting biopesticide, with Avermectin first insecticidal activity improve 1-3 the order of magnitude, to the larva of lepidopterous insects and the activity of other many insect and mite class high, existing stomach poison function is double action of contace poison again, under low-down dosage (0.084 ~ 2g/ha), there is good effect, and in the process of pest control, beneficial insect is not injured, be conducive to the integrated control to insect, expand insecticidal spectrum in addition, reduce the toxicity to people and animals.

Furan tebufenozide, the insecticide that China has independent intellectual property right, chemistry N mono-(2,3-_7-hydrogen 1 by name, 7-dimethyl. benzofuran .6 mono-formoxyl) a N ' tertiary butyl .N '. (3,5 dimethylbenzoyls) hydrazine, Chinese name furan tebufenozide is a kind of white powdery solids, fusing point: 146.0-148.00C, molten-in organic solvent, water insoluble low toxicity is to fish, honeybee, bird, to the high poison of silkworm; To honeybee low-risk, extremely malicious to silkworm.

Furan tebufenozide, as the N mono-tertiary butyl bishydrazide compounds containing benzofuran ring, has the moulting hormone regulating and controlling effect that bishydrazide compounds generally has.After pests official loyal to his sovereign, there is abnormal reaction of casting off a skin very soon, stop taking food, cast off a skin ahead of time, but cannot complete due to abnormal casting off a skin and cast off a skin, cause larva to dewater and hungry and dead.Stop damage to crops in a few hours after pests official loyal to his sovereign, although the death rate of insect differs, furan tebufenozide to the protected effect of crop both fast and sound! Equally also show higher biologically active.

Summary of the invention

The technical problem to be solved in the present invention is, for existing preparation technique Problems existing, proposes a kind of Pesticidal combination containing emamectin-benzoate and uses thereof, improves original preparation technique, improve preventive effect.

Technical solution of the present invention is as follows:

The invention provides one group of Pesticidal combination containing emamectin-benzoate, said composition comprises emamectin-benzoate and furan tebufenozide, can prevent and treat simultaneously, have synergistic function to the multiple insect pest of crops.

The present invention also additionally provides a kind of suspending agent comprising above-mentioned composition, and percentage by weight consists of:

Above-mentioned all components sum is absolutely

Described wetting dispersing agent can select nonionic surface active agent or anionic surfactant, described non-ionic surface active agent is phenethyl phenol polyethenoxy ether, the rare ether of phenethyl phenol polyethenoxy polyoxy third, alkylphenol polyoxyethylene, alkylphenol polyoxyethylene formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, castor oil polyoxyethylene ether, polystyrene-based phenol formaldehyde resin APEO, phenethyl phenol polyethenoxy ether phosphate, alkylphenol polyoxyethylene phosphate etc., and described anion surfactant is alkyl benzene calcium sulfonate, sodium alkyl benzene sulfonate, C ₈~ C ₂₀sodium alkyl sulfate etc.

The optional spent glycol of described antifreezing agent, propane diols, glycerine, polyethylene glycol, sorbierite, urea one of them.

Described defoamer can select organic silicone oil, isooctanol etc.

Described thickener can select xanthans, gum Arabic, carboxymethyl cellulose, CMC, polyvinyl alcohol etc.

Described stabilizing agent can select epoxychloropropane, MPD, tributyl phosphate, sulfonic acid ammonium salt, phosphate, epoxidized vegetable oil etc.

Described PH conditioning agent can select the one in citric acid, lactic acid, glacial acetic acid, hydrochloric acid, phosphoric acid, polyphosphoric acids.

Water of the present invention is running water or ionized water, preferred running water.

Another technical solution of the present invention is, described composition aqueous chemical preparation preparation method comprises the following steps:

Emamectin-benzoate and the former medicine of furan tebufenozide and dispersion wetting agent, antifreeze, defoamer, antimicrobial are carried out high speed dispersion according to the ratio of described each component, through sand mill, mixed material is ground to below particle diameter 5um, to rear mixing kettle, add thickener, pH value regulator etc. stir, finished product.

Embodiment

In order to understand essence of the present invention better, describe in detail with instantiation below, but the present invention is not limited thereto.

Embodiment 1

40% emamectin-benzoate furan tebufenozide suspending agent preparation, each component proportion by weight:

Its preparation process is as follows: emamectin-benzoate and the former medicine of furan tebufenozide and point phenethyl phenol polyethenoxy ether, alkylphenol polyoxyethylene, part water are carried out high speed dispersion 30min according to described ratio, through sand mill, mixed material is ground to below particle diameter 5um, to rear mixing kettle, add ethylene glycol, citric acid, xanthans etc. to stir, finished product.

Experimental example 1

The process taking emamectin-benzoate and furan tebufenozide employing embodiment 1 is mixed with by different proportion the emamectin-benzoate furan tebufenozide suspending agent that total active ingredient weight percentage is 30%.Concrete ratio sees the following form.

Leaf dipping method is adopted to carry out indoor synergy biologicall test, resistance diamond-back moth is selected to be target pest, often process repetition 3 times, every concentration process 60, calculates virulence regression equation and the lethal concentration of 50 of each medicament antagonism diamond-back moth by probability value method, press the abundant method of Sun Yun calculate co-toxicity coefficient by LC50 value, evaluate mixed effect, usually show three kinds of type of action, i.e. synergy, addition and antagonism, when co-toxicity coefficient (CTC) is greater than 120, there is synergistic effect.

The EC50*100 of the EC50/AB of actual toxicity index ATI (AB)=A

Theoretical toxicity index TTI (AB)=percentage+TI (B) * B percentage co-toxicity coefficient CTC=ATI (AB) in the mixture/TTI (AB) * 100 of TI (A) * A in mixture

The results are shown in following table:

The toxicity test result of table 1 emamectin-benzoate and the composite and single dose antagonism diamond-back moth of furan tebufenozide

Reagent agent	Proportioning	EC50(mg/l)	CTC
				Emamectin-benzoate		1.86
Furan tebufenozide		0.87
				Emamectin-benzoate: furan tebufenozide	1:10	0.83	152.1
Emamectin-benzoate: furan tebufenozide	1:5	0.71	164.3
				Emamectin-benzoate: furan tebufenozide	1:1	0.60	192.2
Emamectin-benzoate: furan tebufenozide	5:1	0.52	198.4

As can be seen from Table 1, emamectin-benzoate and furan tebufenozide co-toxicity coefficient in ratio range is all greater than 120, illustrates that both all have synergistic function within the scope of this.

Experimental example 2

Leaf dipping method is adopted to carry out indoor synergy biologicall test, selection resistant bollworm is target pest, often process repetition 3 times, every concentration process 60, virulence regression equation and the lethal concentration of 50 of each medicament antagonism diamond-back moth is calculated by probability value method, press the abundant method of Sun Yun by LC50 value and calculate co-toxicity coefficient, evaluate mixed effect.The results are shown in following table:

The toxicity test result of table 2 emamectin-benzoate and the composite and single dose antagonism cotton bollworm of furan tebufenozide.

As can be seen from Table 2, emamectin-benzoate and furan tebufenozide co-toxicity coefficient in ratio range is all greater than 120, illustrates that both all have synergistic function within the scope of this.

Embodiment 2

20% emamectin-benzoate furan tebufenozide suspending agent preparation, each component proportion by weight:

Preparation method is with reference to embodiment 1

Experimental example 3

Control vegetables diamond-back moth field control effectiveness test is carried out to embodiment 2, with 20% emamectin-benzoate can wet-milling and 20% furan tebufenozide missible oil for contrast medicament, be blank with clear water, after medicine, look into 7 days, 14 days results.Result sees the following form:

Table 3 emamectin-benzoate furan tebufenozide compound drug is to the field test results of vegetables diamond-back moth.

As shown in Table 3, the invention composition suspending agent of the present embodiment 2 gained all shows good insecticidal activity under dilution 2000 times and 1000 times of concentration, and higher than the insecticidal activity of single dose.Illustrate that the suspending agent antagonism diamond-back moth of gained of the present invention has good preventive effect.

Claims

1., containing a Pesticidal combination for emamectin-benzoate, it is characterized in that described composition comprises emamectin-benzoate and furan tebufenozide two kinds of components, its weight proportion is 1-30:30-1.

2., containing a Pesticidal combination for emamectin-benzoate, it is characterized in that described composition can prevent and treat the various insects such as plant hopper on crops, aleyrodid, aphid, thrips, diamond-back moth, beet armyworm, mite class.

3. the Pesticidal combination containing emamectin-benzoate, it is characterized in that described composition adds the components such as emulsifier, cosolvent, antifreezing agent, defoamer, thickener, stabilizing agent, PH conditioning agent, water and makes the various formulations of pesticide, preferably suspending agent.

4. the suspending agent of composition according to claim 3, it is characterized in that, described emulsifier can select nonionic surface active agent or anionic surfactant, described non-ionic surface active agent is phenethyl phenol polyethenoxy ether, the rare ether of phenethyl phenol polyethenoxy polyoxy third, alkylphenol polyoxyethylene, alkylphenol polyoxyethylene formaldehyde condensation products, fatty alcohol-polyoxyethylene ether, castor oil polyoxyethylene ether, polystyrene-based phenol formaldehyde resin APEO, phenethyl phenol polyethenoxy ether phosphate, alkylphenol polyoxyethylene phosphate etc., described anion surfactant is alkyl benzene calcium sulfonate, sodium alkyl benzene sulfonate, C ₈~ C ₂₀sodium alkyl sulfate etc.

5. the suspending agent of composition according to claim 3, is characterized in that, the optional spent glycol of described antifreezing agent, propane diols, glycerine, polyethylene glycol, sorbierite, urea one of them.

6. the suspending agent of composition according to claim 3, is characterized in that, described defoamer can select organic silicone oil, isooctanol etc.

7. the suspending agent of composition according to claim 3, is characterized in that, described thickener can select xanthans, gum Arabic, carboxymethyl cellulose, CMC, polyvinyl alcohol etc.

8. the suspending agent of composition according to claim 3, is characterized in that, described stabilizing agent can select epoxychloropropane, MPD, tributyl phosphate, sulfonic acid ammonium salt, phosphate, epoxidized vegetable oil etc.

9. the suspending agent of composition according to claim 3, is characterized in that, described PH conditioning agent can select the one in citric acid, lactic acid, glacial acetic acid, hydrochloric acid, phosphoric acid, polyphosphoric acids.

10. the suspending agent preparation method of the composition according to claim 3-9, it is characterized in that, emamectin-benzoate and the former medicine of furan tebufenozide and dispersion wetting agent, antifreeze, defoamer, antimicrobial are carried out high speed dispersion according to the ratio of described each component, through sand mill, mixed material is ground to below particle diameter 5um, to rear mixing kettle, add thickener, pH value regulator etc. stir, finished product.