Farmers' Bulletin, العدد 1097

able abundance accumulations adult animals appear attack attractive barns beak become biting blood breeding breeding place catch cattle cause completely considerable continually cover cows dairy deposit destroy digested disease disposed early early spring effective eggs engorged enter especially fall favorable feed female fields fighting FIGURE flies flytrap followed frequently grain belt Greatly enlarged hatch head Hodge holes horses host housefly immature stages important inch in length individuals injury insect killed larvae leave less livestock loss maggots manure material meal means milk moist moisture months natural necessary numbers observed occurs particularly period pest piles plowing portions practically present produced proper protection pupae resting scattered screen seen severe outbreaks side soon stablefly stables stacks straw strawstacks substances suitable summer take place temperature Texas threshing throughout trap usually weather window winter