Method for killing amazonian snails by using tobacco stalks

A technology for tobacco stems and snails, which is applied in the field of resource utilization of snail-killing plants, can solve the problems of complicated tobacco plant production process, large workload of tobacco stems, increased cost and the like, and achieves the ability to inhibit climbing and activity, good effect and cost. low effect

Active Publication Date: 2012-09-12
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing methods have the following defects and deficiencies in the application of killing snails: the extraction process of tobacco plants is complica

Method used

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  • Method for killing amazonian snails by using tobacco stalks
  • Method for killing amazonian snails by using tobacco stalks
  • Method for killing amazonian snails by using tobacco stalks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Collect the tobacco stalks, wash the tobacco stalks, dry them in the shade in a ventilated place, and cut them into pieces;

[0031] The shredded tobacco stalks were dried in a constant temperature blast drying oven at 60°C for 24 h, pulverized by a plant sample grinder, passed through a 40-mesh sieve, and the obtained dry tobacco stalk powder was sealed in a plastic bag and placed in Store in a desiccator for later use.

[0032] The tobacco stalk dry powder was subjected to a toxicity test. Put 80 / m2 in plastic basin 2 Apple snails, any age and size, water 1L (10 -3 m 3 ) (water temperature 25~30℃), treatment dosage is 15.9 g / m 2 、39.8 g / m 2 , 79.6 g / m 2 . Observation at different times found that adding tobacco stem powder 39.8 g / m 2 After 5 days, the mortality rate of apple snails reached 65.8%, and 79.6 g / m 2 After 3 days, all the apple snails died. At the same time, the mortality rate of apple snails gradually increased with the increase of different tob...

Embodiment 2

[0034] Collect the tobacco stalks, wash the tobacco stalks, dry them in the shade in a ventilated place, and cut them into pieces;

[0035] The shredded tobacco stalks were dried in a constant temperature blast drying oven at 60°C for 24 h, pulverized by a plant sample grinder, passed through a 40-mesh sieve, and the obtained dry tobacco stalk powder was sealed in a plastic bag and placed in Store in a desiccator for later use.

[0036] Since adult apple snails are the most harmful and have strong destructive ability when rice is transplanted, and the individual gonads are mature and have strong fecundity, the toxicity of the tobacco stem dry powder to adult apple snails was tested in this example. Put 80 / m2 in plastic basin 2 Adult apple snails (more than 6.5 grams per snail), water 10 -3 m 3 (Water temperature 25~30℃), treatment dosage is 15.9 g / m 2 、39.8 g / m 2 , 79.6 g / m 2 . Observation at different times found that adding tobacco stem powder 39.8 g / m 2 After 5 day...

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Abstract

The invention belongs to the technical field of utilization of snail-killing plant resources and discloses a method for killing amazonian snails by using tobacco stalks. The method comprises the following steps of drying and grinding the tobacco stalks; screening the ground tobacco stalks with a 40 to 60-mesh screen; adding the dry tobacco stalk powder into a water body in an amount of 79.6 to 119.4g per square meter; and completely killing amazonian snails three days later. According to the method, the amazonian snails can be directly killed by adding a proper amount of dry tobacco stalk powder into the water body of rice fields. The method is easy to operate and low in cost, has an obvious effect and can achieve the aim of recycling of wastes.

Description

technical field [0001] The invention belongs to the technical field of utilizing snail-killing plant resources, and in particular relates to a method for killing apple snails, an alien invasive mollusc in South China, by using tobacco stalks. Background technique [0002] Apple snail ( Amazonian smail ) also known as the big bottle snail, amphibious freshwater shellfish mollusk, belongs to the mollusc phylum, gastropoda, mesogastropoda, bottle snail family; the shell is approximately disc-shaped, generally has 6 spiral layers; it likes to inhabit slow-flowing rivers and shade Humid and ventilated ditches, streams and paddy fields, etc.; apple snails are dangerous and harmful invasive organisms that have attracted much attention in the world in recent years. The growth of aquatic crops has amazing fecundity and extremely fast growth speed. Although it is an aquatic species, it can be buried in moist soil for 6-8 months during the dry season, and once there is water, it will be...

Claims

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Application Information

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IPC IPC(8): A01M99/00
Inventor 章家恩方丽赵本良全国明罗明珠
Owner SOUTH CHINA AGRI UNIV
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