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Show Tcfxapheiie Is ISoeoiiBiiBOBBtlocl Toxaphe.ne supplies, needed for lygus bug control on alfalfa, are being supplemented to some ex-lent ex-lent through contact with the man ufacturer, reported Dr. George F. Knowlton, USAC Extension entomologist. entom-ologist. Toxaphene is the only insecticide insecti-cide currently being recommended for use on alfalfa during the period per-iod of bloom, by scientists of the Legume Seed Research Laboratory, which is located at the USAC Ag. Experiment Station. Toxaphene may be applied to blossoming alfalfa for control of lygus bugs and grasshoppers, provided pro-vided it is put on while bees are not visiting the fields. In Utah this means applying it after 7 p. m. and be'fore 7 a. m. Daytime use of in-1 secticides is destructive to pollinators pollin-ators and should be avoided. Toxaphene has been difficult to secure in adequate quantities this year. Much of the supply allocated allocat-ed to Utah insecticide dealers for 1951 was used up in controlling extensive ex-tensive early spring infestations of army cutworms thhroughout the state. While the supply of toxaphene still will be short, some increase in supplies to local Utah dealers is anticipated, entomologist Knowl -ton indicated. |