Aqueous emulsion containing bamboo vinegar pesticide as well as preparation method and use thereof

Abstract

The invention discloses a bamboo vinegar contained pesticide aqueous emulsion which comprises the following components by weight: 1 to 20 percent of pyrethroid, 5 to 10 percent of organic solvent, 2 to 10 percent of emulsifier, 1 to 3 percent of dispersant, 1 to 5 percent of anti-freeze agent, 0.1 to 3 percent of thickening agent, 30 to 60 percent of bamboo vinegar and balance water. The pyrethroid is shown as a first equation, wherein R1 is a group as follows: Cl2 = CH-, (CH3)2C = CH-, Br2C = CH- or CF3ClC = CH-. The invention also provides a method for preparing the bamboo vinegar contained pesticide aqueous emulsion applied to the prevention of agricultural insects. The bamboo vinegar contained pesticide aqueous emulsion comprises the pyrethroid and the bamboo vinegar and accords with the quality requirements of agricultural preparations without on-site preparation, and moreover, the bamboo vinegar can improve the insecticidal action of the pyrethroid. Compared with the prior agricultural composition only comprising the pyrethroid, the invention achieves the same insecticidal action, decreases the effective ingredient consumption of the pyrethroid by about 50 percent and is non-toxic and pollution-free.

Description

technical field

[0001] The present invention relates to a water emulsion containing bamboo vinegar insecticide and a preparation method thereof, the application of the insecticide water emulsion containing bamboo vinegar for preventing and controlling pests of cotton, vegetables, fruit trees and tobacco, and the insecticide containing bamboo vinegar The water emulsion is used for the control of cotton bollworm, pink bollworm, cotton aphid, cabbage caterpillar, diamondback moth, aphid, red wax scale, leaf miner, tobacco budworm. Background technique

[0002] With the improvement of the level of agricultural modernization, the development of modern pesticides is facing enormous pressure from food, ecology and environmental safety. First of all, food safety has become a global issue and has attracted widespread attention from governments and people in various countries. Pesticide residues are an important factor affecting food safety, and it has become a consensus to reduce the...

Examples

Embodiment 1

[0036] Prepare bamboo vinegar insecticide aqueous emulsion according to the following steps:

[0037] a) uniformly mixing pyrethroids, emulsifiers, organic solvents, and dispersants into an oil phase; uniformly mixing antifreeze, thickener, bamboo vinegar and water into an aqueous phase;

[0038] b) under the condition that the oil phase is stirred at a high speed, the water phase is added dropwise into the oil phase to obtain the insecticide-in-water emulsion containing bamboo vinegar.

[0039] The raw materials used in step a) and their consumption are shown in Table 1. The pyrethroid in the present embodiment is deltamethrin, that is, R in the formula (I) 1 Specifically for Br 2 C=CH-. An insecticide aqueous emulsion containing bamboo vinegar with a weight content of 2.5% of deltamethrin was prepared.

Embodiment 2

[0041] Containing the preparation steps of bamboo vinegar insecticide emulsion in water is identical with embodiment 1. The difference is that the raw materials and their amounts used in step a) are shown in Table 2. The pyrethroid in the present embodiment is cypermethrin, that is, R in the formula (I) 1 specifically Cl 2 C=CH-. A water emulsion containing bamboo vinegar insecticide with a weight content of 5% of cypermethrin was prepared.

[0042] Table 1

[0043]

[0044] Table 2

[0045]

Embodiment 3

[0047] Containing the preparation steps of bamboo vinegar insecticide emulsion in water is identical with embodiment 1. The difference is that the raw materials and their amounts used in step a) are shown in Table 3. There is no water in Table 3, which means that the water phase in step a) does not contain water. The pyrethroid in the present embodiment is fenpropathrin, that is, R in the formula (I) 1 Specifically (CH 3 ) 2 C=CH-. A water emulsion containing bamboo vinegar insecticide with a weight content of 20% of fenpropathrin was prepared.

[0048] table 3

[0049]

[0050] The insecticide-in-water emulsions containing bamboo vinegar prepared in Examples 1-3 can be stored for a long time and meet the quality requirements of pesticide preparations.

technical field

[0001] The present invention relates to a water emulsion containing bamboo vinegar insecticide and a preparation method thereof, the application of the insecticide water emulsion containing bamboo vinegar for preventing and controlling pests of cotton, vegetables, fruit trees and tobacco, and the insecticide containing bamboo vinegar The water emulsion is used for the control of cotton bollworm, pink bollworm, cotton aphid, cabbage caterpillar, diamondback moth, aphid, red wax scale, leaf miner, tobacco budworm. Background technique

[0002] With the improvement of the level of agricultural modernization, the development of modern pesticides is facing enormous pressure from food, ecology and environmental safety. First of all, food safety has become a global issue and has attracted widespread attention from governments and people in various countries. Pesticide residues are an important factor affecting food safety, and it has become a consensus to reduce the...

Examples

Embodiment 1

[0036] Prepare bamboo vinegar insecticide aqueous emulsion according to the following steps:

[0037] a) uniformly mixing pyrethroids, emulsifiers, organic solvents, and dispersants into an oil phase; uniformly mixing antifreeze, thickener, bamboo vinegar and water into an aqueous phase;

[0038] b) under the condition that the oil phase is stirred at a high speed, the water phase is added dropwise into the oil phase to obtain the insecticide-in-water emulsion containing bamboo vinegar.

[0039] The raw materials used in step a) and their consumption are shown in Table 1. The pyrethroid in the present embodiment is deltamethrin, that is, R in the formula (I) 1 Specifically for Br 2 C=CH-. An insecticide aqueous emulsion containing bamboo vinegar with a weight content of 2.5% of deltamethrin was prepared.

Embodiment 2

[0041] Containing the preparation steps of bamboo vinegar insecticide emulsion in water is identical with embodiment 1. The difference is that the raw materials and their amounts used in step a) are shown in Table 2. The pyrethroid in the present embodiment is cypermethrin, that is, R in the formula (I) 1 specifically Cl 2 C=CH-. A water emulsion containing bamboo vinegar insecticide with a weight content of 5% of cypermethrin was prepared.

[0042] Table 1

[0043]

[0044] Table 2

[0045]

Embodiment 3

[0047] Containing the preparation steps of bamboo vinegar insecticide emulsion in water is identical with embodiment 1. The difference is that the raw materials and their amounts used in step a) are shown in Table 3. There is no water in Table 3, which means that the water phase in step a) does not contain water. The pyrethroid in the present embodiment is fenpropathrin, that is, R in the formula (I) 1 Specifically (CH 3 ) 2 C=CH-. A water emulsion containing bamboo vinegar insecticide with a weight content of 20% of fenpropathrin was prepared.

[0048] table 3

[0049]

[0050] The insecticide-in-water emulsions containing bamboo vinegar prepared in Examples 1-3 can be stored for a long time and meet the quality requirements of pesticide preparations.

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