. Chemical control of submersed waterweeds in Western irrigation and drainage canals : joint report. Weeds Control; Irrigation canals and flumes; Irrigation canals and flumes Weed control; Weeds; Irrigation canals and flumes; Irrigation canals and flumes. Curlyleaf pondweed (P. crispus L.), water stargrass (Heteranthera dubia (Jacq.) MacM.), and waterplantain (Alisma gramineum (Torr.) Sam. var. Geyeri) are problem weeds in canals in some areas. Most of these waterweeds are rooted in the soil at the bottom and sides of irrigation channels and grow almost entirely beneath the water surface (Fig.
. Chemical control of submersed waterweeds in Western irrigation and drainage canals : joint report. Weeds Control; Irrigation canals and flumes; Irrigation canals and flumes Weed control; Weeds; Irrigation canals and flumes; Irrigation canals and flumes. Curlyleaf pondweed (P. crispus L.), water stargrass (Heteranthera dubia (Jacq.) MacM.), and waterplantain (Alisma gramineum (Torr.) Sam. var. Geyeri) are problem weeds in canals in some areas. Most of these waterweeds are rooted in the soil at the bottom and sides of irrigation channels and grow almost entirely beneath the water surface (Fig. 3). They are commonly referred to as moss or horsetail Figure 3.— A dense stand of waterweeds, primar ily sago pondweed, growing in a section of lined canal on the Gila Proj- ect in Nevada. Deposition of sand and silt on top of the lining provided an ideal seedbed and anchorage for the water- weeds. (Photo courtesy Bureau of Reclamation, Region 3.) 2. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Agricultural Research Service; Comes, R. D; United States. Bureau of Reclamation. [Beltsville, Md. ] : U. S. Dept. of Agriculture, Agricultural Research Service
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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, booksubjectweeds
