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Application of invasive weed Wedelia trilobata to killing of prodenia litura larva

A technology for Spodoptera litura and Wee chrysanthemum, which is applied in an environment-friendly field, can solve problems such as endangering human and animal health, ecological pollution, pesticide residues, etc., and achieves the effects of being convenient for farmers to operate in the field, easy to operate, and low in cost.

Active Publication Date: 2016-08-17
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of pesticides will not only cause pesticide residues on crops, endangering the health of humans and animals, but also enter the soil and rivers through the erosion of rainwater, causing long-term ecological pollution

Method used

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  • Application of invasive weed Wedelia trilobata to killing of prodenia litura larva

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The present invention is a method for killing the pest Spodoptera litura larvae by the invasive weed of South American Wedelia Wedelia, and the specific steps include:

[0019] (1) Collect South American Wedelia leaves, sun-dried and smashed into powder. Take 50 g of dry leaf powder and soak in 1 L of tap water, stir frequently during the period, and filter with gauze after soaking for 48 hours to obtain Wedelia chinensis extract.

[0020] (2) Spray the prepared South American Wedelia chrysanthemum extract directly on the crops damaged by Spodoptera litura larvae, which is suitable for Spodoptera litura larvae in the young stage. Spraying the Wedelia chrysanthemum extract is not optional in rainy weather to prevent the extract from being washed away by rain. Spray once a week, about three times later, it can kill the young larvae of Spodoptera litura. If the larvae are larger, you can continue to spray 2-3 times to achieve the effect of killing Spodoptera litura larvae.

[...

Embodiment 2

[0023] The present invention is a method for killing the pest Spodoptera litura larvae by the invasive weed of South American Wedelia Wedelia, and the specific steps include:

[0024] (1) Collect South American Wedelia leaves, sun-dried and smashed into powder. Take 100 g of dry leaf powder and soak it in 1 L of tap water, stir frequently during the period, and filter with gauze after soaking for 72 hours to obtain the Wedelia chrysanthemum extract.

[0025] (2) Spray the prepared South American Wedelia chrysanthemum extract directly on the crops damaged by Spodoptera litura larvae, which is suitable for Spodoptera litura larvae in the young stage. Spraying the Wedelia chrysanthemum extract is not optional in rainy weather to prevent the extract from being washed away by rain. Spray once a week, about three times later, it can kill the young larvae of Spodoptera litura. If the larvae are larger, you can continue to spray 2-3 times to achieve the effect of killing Spodoptera litur...

Embodiment 3

[0028] The present invention is a method for killing the pest Spodoptera litura larvae by the invasive weed of South American Wedelia Wedelia, and the specific steps include:

[0029] (1) Collect South American Wedelia leaves, sun-dried and smashed into powder. Take 200 g of dry leaf powder and soak it in 1 L of tap water, stir frequently during the period, and filter with gauze after 72 hours of soaking to obtain Wedelia chinensis extract.

[0030] (2) Spray the prepared South American Wedelia chrysanthemum extract directly on the crops damaged by Spodoptera litura larvae, which is suitable for Spodoptera litura larvae in the young stage. Spraying the Wedelia chrysanthemum extract is not optional in rainy weather to prevent the extract from being washed away by rain. Spray once a week, about three times later, it can kill the young larvae of Spodoptera litura. If the larvae are larger, you can continue to spray 2-3 times to achieve the effect of killing Spodoptera litura larvae....

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Abstract

The invention discloses application of invasive weed Wedelia trilobata to killing of prodenia litura larvae and belongs to the environment-friendly technical field of killing pests by using invasive plant resources. Wedelia trilobata extract solution is applied to crops to directly kill prodenia litura larvae. The invasive weed Wedelia trilobata which is commonly seen in South China areas is used to realize reasonable and effective development and utilization of plant resources; dry leaf weight of Wedelia trilobata used in the preparation of the Wedelia trilobata extract solution is 50 to 200g. By using the invasive weed Wedelia trilobata to effectively kill the agricultural pest prodenia litura larvae, the operation is simple and easy to perform, the effect is good, the cost is extremely low and the method is a healthy, pollution-free, environment-friendly and ecological method for preventing and controlling agricultural pests.

Description

Technical field [0001] The present invention is an environment -friendly technology field that uses plant resources to kill insects. It involves a method of using an external invasion of weeds in the samuraga chrysanthemum in the killing of pests. Background technique [0002] The oblique night moth is a omnivorous agricultural pest commonly distributed in my country. Its larvae feed a variety of crops, bite plant leaves, flowers, and fruits. Caused pollution, and it can reproduce 4-5 generations a year, which is harmful to intermittentity, causing huge economic losses to my country's agriculture.At present, the main method of my country's prevention and treatment of oblique night moths is to use chemical pesticides.However, the use of pesticides will not only cause pesticide residues on the cash crop, endanger human and animal health, and enter the soil and river channels through the washing of rainwater, causing long -term ecological pollution.The use of biological prevention a...

Claims

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Application Information

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IPC IPC(8): A01N65/12A01P7/04A01G13/00
CPCA01G13/00A01N65/00A01N65/12
Inventor 祁珊珊戴志聪陈琪王宁付伟宋由页黄凯杜道林
Owner JIANGSU UNIV
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