Unlock instant, AI-driven research and patent intelligence for your innovation.

Insecticide for preventing and controlling inchworms of stevia rebaudiana and preparation method

A technology of stevia inchworm and insecticide, which is applied in the field of insecticide and preparation for controlling stevia inchworm, can solve problems such as human injury, environmental pollution, and stevia plant influence, and achieve good quality, high nutritional value, and good quality. The effect of application value and environmental significance

Inactive Publication Date: 2017-05-10
MINGGUANG DAQUAN STEVIA PROFESSIONAL COOP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to obtain stevia with high quality and good commercial value, we must pay attention to the impact of insect pests, and the influence of inchworms on stevia pests cannot be ignored. At present, people generally use high-concentration pesticides to kill stevia pests. It can have a therapeutic effect, but it will pollute the environment and cause harm to the human body, and excessive dosage will affect the stevia plant, such as symptoms such as burning seedlings. Therefore, research and development of a method that can effectively prevent stevia from growing Insecticides affected by inchworm pests in the process, and have environmental protection performance, have important significance and application value

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment relates to a kind of insecticide and preparation method for controlling stevia leafworm;

[0025] The insecticide is composed of the following components: 20 parts of stevia, 10 parts of Sophora flavescens, 8 parts of chamaejamas, 15 parts of bitter bark vine, 12 parts of pomegranate seeds, 12 parts of Bauhinia bark, 10 parts of tripterygium wilfordii, 15 parts of pyrethrum , 15 parts of castor, 13 parts of calamus, 10 parts of hundred.

[0026] The preparation steps of described insecticide are as follows:

[0027] (1) Weigh each component separately according to the proportion, pulverize with a pulverizer until the particle size is 50 mesh, mix evenly, and set aside;

[0028] (2) Wrap the mixed components with filter paper and add them to the Soxhlet extractor, and add ethanol to the flask connected to the Soxhlet extractor, wherein, the mixture coarse powder: the amount of ethanol is 5g: 100mL, at 80 ° C, ultrasonic radiation Under the condition of ...

Embodiment 2

[0033] This embodiment relates to a kind of insecticide and preparation method for controlling stevia leafworm;

[0034] The insecticide is composed of the following components: 10 parts of stevia, 5 parts of Sophora flavescens, 5 parts of chamaejasma chamaejasme, 10 parts of bitter bark vine, 10 parts of pomegranate seed, 10 parts of Bauhinia bark, 5 parts of tripterygium wilfordii, 10 parts of pyrethrum , 10 parts of castor, 10 parts of calamus, 5 parts of hundred parts.

[0035] The preparation steps of described insecticide are as follows:

[0036] (1) Weigh each component according to the proportion, pulverize with a pulverizer until the particle size is 100 mesh, mix evenly, and set aside;

[0037] (2) Wrap the mixed components with filter paper and add them to the Soxhlet extractor, add ethanol to the flask connected to the Soxhlet extractor, wherein, the mixture coarse powder: the amount of ethanol is 5g: 120mL, at 80 ° C, ultrasonic radiation Under the condition of ...

Embodiment 3

[0042] This embodiment relates to a kind of insecticide and preparation method for controlling stevia leafworm;

[0043] The insecticide is composed of the following components: 30 parts of stevia, 15 parts of Sophora flavescens, 10 parts of chamaejamas, 20 parts of bitter bark vine, 15 parts of pomegranate seeds, 15 parts of Bauhinia bark, 15 parts of tripterygium wilfordii, 20 parts of pyrethrum , 20 parts of castor, 20 parts of calamus, 15 parts of hundred.

[0044] The preparation steps of described insecticide are as follows:

[0045] (1) Weigh each component according to the proportion, pulverize with a pulverizer until the particle size is 100 mesh, mix evenly, and set aside;

[0046] (2) Wrap the mixed components with filter paper and add them to the Soxhlet extractor, add ethanol to the flask connected to the Soxhlet extractor, wherein, the mixture coarse powder: the amount of ethanol is 10g: 150mL, at 75 ° C, ultrasonic radiation Under the condition of 90W, ultraso...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention provides an insecticide for preventing and controlling inchworms of stevia rebaudiana and a preparation method. The insecticide is prepared from the following components: the stevia rebaudiana, radix sophorae flavescentis, radix euphorbiae ebracteolatae, celastrus angulatus, pomegranate seeds, kadsura root-bark, radix tripterygii wilfordii, pyrethrum cinerariifolium, semen ricini, rhizoma acori tatarinowii and radix stemonae. The preparation method comprises the following steps: crushing and uniformly mixing each component; wrapping the mixed components with filter paper for adding into a Soxhlet extractor, adding ethanol into a flask connected with the Soxhlet extractor, and performing ultrasonic-assisted heating refluxing to obtain an extracting solution; loading the mixed components in the flask, adding water, performing ultrasonic-assisted heating refluxing extraction and hot filtration, and repeating the operation twice; mixing and concentrating the obtained extracting solution, filtrate and washing liquor to obtain a target product, i.e. the insecticide. The insecticide has relatively better prevention and control effects on the inchworms in a growth process of the stevia rebaudiana so as to obtain the stevia rebaudiana with high nutritional value and high quality, and has relatively higher application value and environmental protection significance.

Description

technical field [0001] The invention relates to the technical field of agricultural pest control, in particular to an insecticide for controlling stevia leafworm and a preparation method thereof. Background technique [0002] Stevia is a perennial herbaceous plant of Compositae, native to subtropical South America. The roots, stems and leaves of Stevia rebaudiana contain steviol glycosides. Stevioside has the characteristics of high sweetness (200-300 times that of sucrose), low calorie (only 1 / 300 of sucrose), and can increase blood sugar, lower blood pressure, and promote metabolism. Heart disease, dental caries, etc. have a certain auxiliary effect, so it has increasingly attracted people's attention and attention, and has become the "third sugar source" after sucrose and synthetic sugar. [0003] The planting area of ​​stevia is also expanding, and the supply exceeds the demand. Stevia products are widely used in medicine and food additive industries. At present, ste...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01N65/46A01P7/04
CPCA01N65/00A01N65/46A01N2300/00Y02A50/30
Inventor 贾德军
Owner MINGGUANG DAQUAN STEVIA PROFESSIONAL COOP