Planting method and biodegradable material for preventing pests

Details Planting method and biodegradable material for preventing pests Planting method and biodegradable material for preventing pests

2001-03-27

2003-11-18

Levy, Neil S. (Department: 1616)

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

C424S405000, C424S407000, C424S410000, C424S411000, C424S412000, C424S413000, C424S414000, C424S420000, C514S517000

Reexamination Certificate

active

06649182

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a planting method and a biodegradable material for preventing pests, and especially to a planting method and a biodegradable material for preventing snails from generating in a low land rice field.
BACKGROUND OF THE INVENTION
The damages of pests and weeds are two biggest problems for the agricultural management nowadays. Especially after the golden apple snail (
Pomacea canaliculata
(Lamarck)) was wrongly introduced into Taiwan, the balance of ecological environment is seriously affected. The golden apple snail mainly inhabits in aquatic environment, is polyphagia and has a very high multiplication rate. Once introduced into the paddy field the rice seedlings are serious damage and resulted in yield reduction. Conventionally, the pesticide used for control the snail is fentin acetate, but the soil of the rice field will also be contaminated with heavy metals. Therefore, the business of the greatest urgency at present is to find an alternate method for preventing snails.
In addition, the expendable goods used for agricultural production are usually made of plastic. Although plastic is cheap and convenient, it is non-biodegradable. To protect our environment, the usage of plastic should be limited. Thus, it is important to provide a biodegradable material for agricultural production.
It is therefore attempted by the applicant to deal with the above situation encountered with the prior art.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a planting method for preventing pests growing, and to provide a biodegradable material which can prevent pests and weeds growing thereon.
Another object of the present invention is to provide a planting method for preventing pests, particularly snails, from generating in a paddy rice field.
The planting method of the present invention includes the steps of (a) providing a biodegradable material, (b) adding a pesticide into the biodegradable material, and (c) spreading the pesticide-added biodegradable material on a plant-growing substrate. Therefore, a plant growing on the plant-growing substrate will not undergo the damage of pests.
The pesticide of the present invention is preferably sodium dodecyl sulfate (SDS), linear alkyl sulfonate (LAS), or an agricultural waste containing saponin. The saponin-containing agricultural waste is preferably methyl alcohol extracted from seeds of bitter tea or tobacco powder.
The biodegradable material of the present invention is preferably paper mats, non-twine cloths, or films made of biodegradable polymers.
According to the present invention, SDS is added into the biodegradable material by spraying, or by the steps of (a) mixing SDS with a glue to form a glutinous solution, (b) daubing the glutinous solution on the biodegradable material, and (c) air-drying SDS-added biodegradable material. Preferably, the glue is carboxymethyl cellulose sodium salt (CMC), and SDS is added into the biodegradable material with a dosage larger than 100 ppm, preferably ranged from 500 ppm to 10000 ppm.


REFERENCES:
patent: 3090723 (1963-05-01), Pastac
patent: 5162349 (1992-11-01), Beriger et al.
patent: 5951995 (1999-09-01), Adamoli, Jr. et al.
Roll Lawn; Planters Paper Stokes Catalog, 1998.*
Less Toxic: Snails & Slugs, Feb. 2000.

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