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UNITED STATES DEPARTMENT OF AGRICULTURE
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agricultural alcoholic extract Amianthium amount aphids Aphis sp assessments ASTERACEAE average beetles British thermal units bunt Bureau bushels C. L. Marlatt calcium arsenate cent Charles White corn cotton caterpillars court crop acres crosses cube curculios damage decoction derris determined ditch dog flea drain drainage district drawbar dust efficient experiments FABACEAE feed feet field flavor and odor flying germination grade grain Greshoff 31 head hopper horse labor hours of horse improvement inches increased insecticide insects land larvae loaded Macrosiphum sp method milk northern area number of hours obtained operation percentage plane plants plat plowing poison pounds powder practically production Pyrethrum railroad reports results are given Riley 71 sabadilla seed shipments shippers silkworms smut southern special benefits species spores sprayed straw sulphate sweet potatoes Synonym tested tion tract tractors United varieties western area Whatley X St wheat writers yield