CN1226928C - Aju water dispersion granule and production method thereof - Google Patents

Abstract

The present invention relates to a farm chemical composition compounded by abamectin and high effect cypermethrin, which is characterized in that fertilizer is used as a carrier, and an auxiliary agent and an emulsifying agent are added, which enables water granules combining medicine and fertilizer to be granulated and molded. The farm chemical composition is composed of the following components of the proportion by weight: 0.05 to 5% of abamectin, 0.05 to 10% of high effect cypermethrin, 1 to 10% of auxiliary agent A, 0.01 to 3% of auxiliary agent B, 1 to 12% of emulsifying agent and 70 to 95% of fertilizer used as the carrier. Compared with the prior art, the present invention has the advantages of enhancement of medicinal and nutrient effects of compound medicine, reduction of production cost and reduction of environment pollution.

Description

Aju water dispersion granule and production method thereof

Technical field

The invention belongs to technical field of compounded pesticide. be specifically related to use Avermectin and beta-cypermethrin and be mixed and make a kind of pesticides new formulation and production method thereof.

Background technology

Avermectin (avermectn) is the macrolides antiinsect antibiotic, have killing mite, killing insect active of efficient, wide spectrum, mite class and insect are had stomach toxicity and action of contace poison. permeability is strong, soup sprays to infiltrate rapidly on the blade face and forms numerous miniature anther sacs in the mesophyll, the larval feeding of the adult of mite class and nymph and insect with contact soup after paralysis symptom appears immediately, inertia, do not get food, dead after 2-4 days. the medicament on residual blade face is few, and be broken down into innocuous substance very soon, so, lethal little to natural enemy.

Beta-cypermethrin (beta-Cypermenthrin) is a kind of pyrethroid insectide, it is the efficient isomer of beta-cypermethrin, having and tag and stomach poison function. its insecticidal spectrum is wide, the speed of knocking down is fast, insecticidal activity more efficient cypermethrin height. be mainly used in various crop insect and sanitary insect pests such as control vegetables, fruit tree, tea, tobacco leaf, wheat class and cotton. and poor to mite class control efficiency.

Avermectin and beta-cypermethrin are mixed and can improve drug effect and enlarge insecticidal spectrum, Avermectin and and the formulation that is mixed of beta-cypermethrin mainly be missible oil, the registration number of registering at present in the Ministry of Agriculture that mainly contains is LS20001524, LS20001199, Recompounded pesticide such as LS99893 and LS98839. 00110824) and microemulsion (Chinese invention patent application number: 99107713.X in addition, also have wetting powder (the Chinese invention patent application number: of Avermectin and high beta-cypermethrin; 99116869.0).. the organic solvent content of above-mentioned missible oil kind is up to 90%, widely-used missible oil causes the pollution of organic solvent to environment, also wasted valuable organic resource on the other hand. wetting powder has dust polluting environment when producing, main is that the suspensibility of wetting powder is generally about 70%, influencing the performance of drug effect. microemulsion is to be the novel form of medium with water, but, it is except that adding emulsifier about 20%, also to add cosolvent and stabilizing agent 30%, three's sum accounts for more than 50% of whole preparation, and manufacturing technology has certain requirement, grasps badly, and stability is difficult to guarantee.

Summary of the invention

The objective of the invention is to overcome the defective that prior art exists, reduce the composition of preparation and contaminated environment unhelpful as far as possible crops, and the pesticides new formulation that desinsection can be combined with additional foliar application..From this purpose, it is the Avermectin of carrier and the water dispersible granules that beta-cypermethrin is mixed with the chemical fertilizer that the present invention has developed. this water dispersible granules relies on carrier to dissolve dispersion rapidly in water and forms emulsion. because of carrier is a chemical fertilizer, the mixing fertilizer that N wherein, P, K form in proportion, not only price is low, environmentally safe, and when spraying insecticide, having replenished foliage fertilizer. water dispersible granules stable performance of the present invention, packing and storage and transportation are all very convenient.

The present invention is achieved through the following technical solutions:

A kind of with Avermectin and efficient cypermethrin compounded composition pesticide, with the chemical fertilizer is carrier, be added with auxiliary agent and emulsifier, make it the water dispersible granules that granulating and forming is a combination of pesticide and fertilizer, be by weight percentage: Avermectin 0.05-5%: beta-cypermethrin 0.05-10%; Auxiliary agent A 1-10%; Emulsifier 3-12%, carrier chemical fertilizer 70-90%; Auxiliary agent B 0.01-3%.

Preferably, described Avermectin: beta-cypermethrin is 1 by weight percentage: 1-1: 6.

Described carrier is to select commercial chemical fertilizer for use, for example urea, ammonium chloride, potassium chloride, ammonium nitrate, ammonium sulfate, ammonium phosphate, potassium sulphate, potassium dihydrogen phosphate, superphosphate etc., prepare the first compound fertilizer of mistake of helping the nitrogen type or containing N, P, K element voluntarily according to the nutritional need of crop, fruit and vegetables and do carrier, or do carrier with commercial compound fertilizer.

Described chemical fertilizer is 1: 0: 0 or 1: 1: 1 by the proportioning of pure N: P (in phosphorus pentoxide): K (in potassium oxide); Or 1: 0.5: 1; Perhaps 1: 0.5: 1.5.

Described chemical fertilizer is the commercial compound fertilizer that contains N, P, K element (calculating with scale), also can be the multi-element compound fertilizer that contains N, P, K element (calculating with scale) according to the preparation voluntarily of crop, fruit tree or vegetables Different Nutrition needs.

Described auxiliary agent A is from sec-butyl alcohol, the tert-butyl alcohol, n-butanol, isopropyl alcohol, ethanol, methyl-sulfoxide, N, and dinethylformamide, nafoxidine, hexahydropyridine, benzene,toluene,xylene select in any one wherein two kinds to form mixed aid or single with a kind of auxiliary agent of doing wherein; Described auxiliary agent B is selected any one wherein a kind of from dextrin, starch, diatomite, sodium lignin sulfonate, kaolin or sodium chloride.

Described emulsifier selects wherein two kinds to form blended emulsifiers from Tween-60, Tween-80, Span-40, Span-80, farming breast 0203, calcium dodecyl benzene sulfonate, neopelex, dialkyl group succinic acid benzene sulfonic acid sodium salt any one.

A kind of preparation is with the method (with the example that is prepared as of 0.5-10% water dispersible granules) of Avermectin and efficient cypermethrin compounded composition pesticide, and its concrete preparation process is as follows:

(1) calculate the consumption of two kinds of compositions by proportioning and degree, and weighing, mixing;

(2) be sequentially added into auxiliary agent, emulsifier and chemical fertilizer;

(3) be processed into granula by absorption method and coating method.

Composition pesticide in order to the preparation of top method can be used on crops, vegetables, flowers or the fruit tree.

Effect of the present invention is shown in table 1-9:

Table 1 Avermectin: the insecticidal effect of the different proportionings of beta-cypermethrin is (desinsection lethality and EC value) relatively

Avermectin: beta-cypermethrin	Apart from dispenser hour	Spraying medicine concentration (ppm)						EC50	EC90
										40	30	20	10	5	1
		1∶6	12	61.67	46.67	36.67	23.33									3.33	1.67	31.3	57.1
24	65.0							63.23	40.00	26.67	6.67	1.67	26.9	49.9
			48	73.33	70.00	46.67	31.67								6.67	6.67	23.40	44.70
1∶4	12							76.97	43.33	41.67	25.67	8.33	1.67	27.30					50.30
		24	76.97	43.33	41.67	26.67	8.33								1.67	27.30	50.30
	48							90.00	85.00	80.00	68.33	25.00	13.33	12.20				33.40
		1∶2	12	90.08	81.67	71.66	56.67								36.67	1.67	14.40		33.80
24	93.41							86.67	75.00	61.67	46.67	1.67	12.10	32.90
			48	93.44	83.33	78.33	63.33								46.67	1.67	11.80	32.90
Cypermethrin	12							48.33	46.67	45.00	36.67	20.00	3.33	3.41					73.50
		24	93.55	86.67	80.00	65.00	48.33								20.30	8.20	32.50
	48							93.55	86.67	80.00	65.00	48.33	20.30	8.20				32.50
		Avermectin	12	49.49	47.79	46.08	37.55								20.48	3.41	34.00		109.30
24	93.22							81.39	79.69	64.86	48.18	3.71	11.17	33.10
			48	98.33	93.43	86.24	70.10								52.09	21.56	5.90	29.10

Table 2 Avermectin: the toxicity test result of the different proportionings of beta-cypermethrin

Avermectin: beta-cypermethrin	100∶0.01	1∶2	1∶4	1∶6	0.01∶100
						EC90	29.10	32.90	33.40	44.70	32.50
The actual measurement toxicity index	100.00	88.45	87.13	65.1	100.00
						Theoretical toxicity index		31.37	31.82	32.01
Co-toxicity coefficient		28.20	2.74	2.03

Table 2 is the result show, Avermectin and beta-cypermethrin are mixed and have tangible potentiation, its co-toxicity coefficient is greater than 2. Avermectin: the co-toxicity coefficient of the proportioning effect of the co-toxicity coefficient of 1: 1 proportioning of beta-cypermethrin than 1: 2 is also big, and its coefficient is near 3, thereby its potentiation is more remarkable..

Table 3 the present invention is to the drug effect effect assessment of class Diabrotica insect

Medicament	Avermectin-r (contrast)							The present invention's (water dispersible granules)
															Design concentration (ppm)	0.5	1.0	3.0	5.0	7.0	10.00	15.0		0.5	1.0	3.0	5.0	7.0	10.0
Lethality %, 24h	10.52	20.13	29.54	40.34	60.19	64.24	68.41		28.00	33.1 0	42.10	46.90	59.00	67.4
															Lethality %, 48h	20.3	42.6	65.1	78.2	87.5	94.2	95.1		45.5	48.9	64.7	69.6	79.6	92.0

Table 4 the present invention is to the drug effect effect assessment of mite class (two spotted spider mite)

Medicament	Avermectin-r (contrast)							The present invention's (water dispersible granules)
														Design concentration (ppm)	0.5	1.0	3.0	5.0	7.0	10.00	15.0	0.5	1.0	3.0	5.0	7.0	10.0
Lethality %, 6h	28.0	33.1	42.1	46.7	59.0	67.4	83.3	39.9	68.1	74.6	81.4	85.4	88.8
														Lethality %, 24h	45.5	48.8	64.7	69.6	79.6	92.0	98.1	48.3	70.2	78.2	85	88.8	98.1

Table 5 the present invention is to the drug effect effect assessment of Phytophthira insect

Medicament	Avermectin-r (contrast)							The present invention's (water dispersible granules)
														Design concentration (ppm)	0.5	1.0	3.0	5.0	7.0	10.00	15.0	0.5	1.0	3.0	5.0	7.0	10.0
Lethality %, 24h	8.4	13.2	28.4	47.8	57.8	65.9	70.7	12.1	17.9	27.4	39.5	47.2	56.4
														Lethality %, 48h	44.1	51.9	64.6	88.4	97.1	100	100	24.4	41.1	68.4	82.1	95.4	98.3

Table 3,4,5 result show that water dispersible granules of the present invention has also been done further test apparently higher than contrast medicament (missible oil) to beet armyworm, cotton bollworm and prodenia litura, and the result is shown in 6,7,8:

Table 6 the present invention is to the drug effect effect assessment of beet armyworm

Medicament	Avermectin-r (contrast)			The present invention's (water dispersible granules)
							Design concentration (ppm)	20	40	60	20	40	60
Lethality %, 24h		80.00	100.00		90.00	100.00
							Lethality %, 48h		100.00			100.00

Table 7 the present invention is to the drug effect effect assessment of cotton bollworm

Medicament	Avermectin-r (contrast)			The present invention's (water dispersible granules)
							Design concentration (ppm)	20	40	60	20	40	60
Lethality %, 24h	50.00	65.00	90.00	50.00	80.00	90.00
							Lethality %, 48h	80.00	82.00	100.00	60.00	83.00	100.00

Table 8 the present invention is to the drug effect effect assessment of prodenia litura

Medicament	Avermectin-r (contrast)			The present invention's (water dispersible granules)
							Design concentration (ppm)	20	40	60	20	40	60
Lethality %, 24h	36.00	56.00	80.00	33.00	55.00	82.00
							Lethality %, 48h	54.00	75.00	90.00	67.00	85.00	99.00

Compare the present invention from the cost of inventing and also have the prior art of being better than, as shown in table 9:

The production cost of table 9 the present invention and prior art relatively

Medicament kind	2% Avermectin-r (prior art)	2% Avermectin-beta-cypermethrin water dispersible granules (the present invention)
			Avermectin	1.267	1.267
Beta-cypermethrin	0.016	0.016
			Solvent	0.24
Carrier (chemical fertilizer)		0.102
			Auxiliary agent	0.42	0.32
The unit price of manufactured goods (RMB, unit/100 grams)	1.94	1.705

The present invention as seen from the above analysis has combination of pesticide and fertilizer than existing product (Avermectin-r), and desinsection and foliar application are combined, and improves the result of use of agricultural chemicals, has also got positive effect to reducing environmental pollution simultaneously.

Embodiment

Embodiment 1:

0.5-2% A Ju (preparation (counting by weight percentage) of Avermectin-beta-cypermethrin pesticide water dispersible granule:

Avermectin: 0.05-1%;

Beta-cypermethrin: 0.05-5%;

Auxiliary agent A, for example optional wherein a kind of from benzene,toluene,xylene, addition: 1-5%;

Emulsifier, for example addition: 1-5% is selected in the mixed Ruzhong of farming breast 0203 or polysorbate60 or Tween 80 and calcium dodecyl benzene sulfonate composition;

The carrier chemical fertilizer is for example selected addition: 70-95% from the full nitrogen type mixed fertilizer of urea or urea and ammonium chloride or urea and ammonium sulfate composition.

Be processed into granula by absorption method and coating method.

(6) quality testing: press the Recompounded pesticide national standard and carry out (down together).

Embodiment 2:

The preparation (counting by weight percentage) of 4-6% A Ju (Avermectin-beta-cypermethrin) pesticide water dispersible granule:

Avermectin: 0.5-3%;

Beta-cypermethrin: 1-7%;

Auxiliary agent A: for example from the mixed aid that toluene and methyl-sulfoxide or dimethylbenzene and N, dinethylformamide are formed, select wherein a kind of, addition: 2-7%;

Emulsifier, for example from the blended emulsifier that farming breast 0203, polysorbate60 or Tween 80 and Span-40 or Span-80 form, choose wantonly wherein a kind of,, addition: 5-7%;

Auxiliary agent B, for example optional wherein a kind of from diatomite or starch, addition: 1-2%

Carrier chemical fertilizer, preparation by the following method: by pure N, phosphorus pentoxide, potassium oxide=1: 0.5: 1 or 1: 1: 1, addition: 70-95%.

Granulation and quality inspection method are with embodiment 1.

Embodiment 3:

8-10% Avermectin-beta-cypermethrin water dispersible granules (by weight percentage), by preparing 100 kilograms of calculating of product:

Avermectin: 2-5% (2-5 kilogram);

Beta-cypermethrin: 2-8% (2-8 kilogram);

Auxiliary agent A, optional wherein a kind of from the mixed aid that toluene, toluene and methyl-sulfoxide, the tert-butyl alcohol and methyl-sulfoxide are formed, addition:: 3-7% (3-7 kilogram);

Auxiliary agent B, optional wherein a kind of from diatomite, sodium lignin sulfonate, kaolin, addition:: 1-3% (1-3 kilogram);

Emulsifier, for example optional wherein a kind of from farming breast 0203, polysorbate60 or Tween 80 and calcium dodecyl benzene sulfonate or dialkyl group succinic acid benzene sulfonic acid sodium salt composition blended emulsifier, addition: 7-10% (7-10 kilogram);

Carrier chemical fertilizer, preparation by the following method: by pure N, phosphorus pentoxide, potassium oxide=1: 0.5: 1 or 1: 0.5: 1.5, addition (percentage by weight): 70-95%.

Granulation and quality inspection method are with embodiment 1.

Claims (4)

1, a kind ofly it is characterized in that with Avermectin and efficient cypermethrin compounded composition pesticide, is carrier with the chemical fertilizer, is added with auxiliary agent and emulsifier, makes it the granula that granulating and forming is a combination of pesticide and fertilizer, is by weight percentage: Avermectin 0.05-5%; Beta-cypermethrin 0.05-10%; Auxiliary agent A 1-10%; Auxiliary agent B 0.01-3%; Emulsifier 1-12%, carrier chemical fertilizer 70-95%;

Wherein:

Described auxiliary agent A is selected from sec-butyl alcohol, the tert-butyl alcohol, n-butanol, isopropyl alcohol, ethanol, methyl-sulfoxide, N, and dinethylformamide, nafoxidine, hexahydropyridine, benzene,toluene,xylene are wherein a kind of or be selected from wherein two kinds;

It is wherein a kind of that described auxiliary agent B is selected from dextrin, starch, diatomite, sodium lignin sulfonate, kaolin or sodium chloride;

Described emulsifier is selected from Tween-60, Tween-80, Span-40, Span-80, farming breast 0203, calcium dodecyl benzene sulfonate, neopelex, dialkyl group succinic acid benzene sulfonic acid sodium salt is wherein a kind of or wherein two kinds;

Described carrier chemical fertilizer is selected from one of them kind of urea, ammonium chloride, potassium chloride, ammonium nitrate, ammonium sulfate, ammonium phosphate, potassium sulphate, potassium dihydrogen phosphate, superphosphate.

2, according to claim 1ly it is characterized in that described Avermectin with Avermectin and efficient cypermethrin compounded composition pesticide: the percentage by weight of cypermethrin is 1: 1-6.

3, according to claim 1 with Avermectin and efficient cypermethrin compounded composition pesticide, it is characterized in that described carrier chemical fertilizer is 1: 0: 0 or 1: 1: 1 or 1: 0.5: 1.5 by the weight ratio of pure N: P (in phosphorus pentoxide): K (in potassium oxide).

4, according to claim 1ly it is characterized in that with Avermectin and efficient cypermethrin compounded composition pesticide described carrier chemical fertilizer is selected from full nitrogen type chemical fertilizer or contains the compound fertilizer of N, P, K element.