This invention is the application of liquid permeable packaging such as but not limited to pressed or woven natural or synthetic fibers sheets in the form of tubes, envelopes, or other packages to single use preservatives and pesticides with the intent of environmental liquids either ambient or added being able to move through the packaging as to interact with the dry preservative or pesticide. It is applicable to such preservatives or pesticides as require liquids to be applied with or present in the target site, either to alter the chemical nature of, or aid in the transportation of the pesticide or preservative.