Ultrahigh-Frequency Electromagnetic Radiation Utilized For Aquatic Vegetation Control

An ultrahigh-frequency electromagnetic field (2,450 ±20 megahertz) is lethal to floating aquatic plants. Preliminary experiments indicate specie sensitivity varies within the duckweeds. Laboratory experiments indicate their Median Tolerance Limit is approximately 16.7 joules/ml, for our experimental conditions. However, field simulated experiments with soil banked test containers indicate higher energy levels will be necessary for field control.

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