Shielding plants from frostation by use of foam

Claim 1

METHOD FOR SHEILDING BOTANICAL PLANTS FROM FROSTATION WHICH COMPRISES COVERING AT LEAST THE SUSCEPTIBLE PORTION OF SAID PLANTS WHEN DANGER OF FROST IS IMMINENT WITH AN ENVELOPING, PROTECTIVE LAYER HAVING A THICKNESS OF AT LEAST ABOUT HALF AN INCH OF A STABLEM LONG-LASTING FOAM THAT HAS A LONGEVITY OF AT LEAST ABOUT FOUR HOURS AND WHICH HAS BEEN GENERATED FROM AN AQUEOUS, SPUMESCENT, FOAMPROVIDING COMPOSITION, SAID FOAM BEING GENERATED FROM A DILUTE AQUEOUS SOLUTION CONTAINING BETWEEN ABOUT 0.25 AND 5.0 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE SOLUTION, OF A LONG-CHAIN WATER-SOLUBLE POLYMERIC MATERIAL SELECTED FROM THE GROUP CONSISTING OF NON-POLAR CELLULOSE ETHER DERIVATIVES THAT ARE ADAPTED TO PROVIDED ONE PERCENT BY WEIGHT AQUEOUS SOLUTINS HAVING SURFACE TENSIONS AT ROOM TEMPERATURE BENEATH ABOUT 60 DYNES PER CENTIMETER; POLYVINYL ALCOHOL; POLYVINYLPYRROLIDONE; WATER-SOLUBLE COPOLYMERS OF VINYL PYRROLIDONE; HYDROLYZED POLYACRYLONITRILE; COPOLYMERS OF VINYL ACETATE AND MALEIC ACID; COPOLYMERS OF VINYL METHYL ETHER AND MALEIC ANHYDRIDE; AND MIXTURES THEREOF; SAID AQUEOUS SOLUTION CONTAINING A MINOR PROPORTION OF BETWEEN ABOUT 0.05 AND 10 PERCENT BY WEIGHT OF SAPONIN, BASED ON THE WEIGHT OF THE SOLUTION.