Show WEED CONTROL CONT KOt there are arc in utah a number of weeds considered to be unusually persistent and to eradicate once they have become established the most common in this group are arc wild morning glories white tops canada es peren perennial niel sow this ties and Russ russian laft knap weeds the last being one of comparatively recent introduction the weeds in this group are quite generally feared anti and much talked of by the farmers they are feared because it if allowed to persist they usually take possession of the hinder the grow t ali ot of faem coopt cropt tite tho fact about these weeds is their s spread pread old infested argas are increasing in size and each year new lands lads are becoming infected in time practically every farmer in utah will bo be fighting one ona or more of these weeds unless some vigorous methods are arc taken to keep keel them in check on the other hand there is onether another group of weeds much less feared by the farmers but which is ia causing tar far greater total losses in crops because of their wide distribution these are mostly animals in nature such as red root russian thistle and one or more weed sot this group is present on every farm in utah and is materially affecting acre yields and the lie quality of the crop harvested A survey made in the summer ot of 1926 of utah salt lake weber davis boxelder Gox Box elder tooele thoele and cache counties showed allowed that about eighty five percent of the fields have weeds interspersed intersperse with the crops thear the ar la ea of the land occupied by these weeds covers from five to ninety per cent ot of tile holds fields it is difficult to arrivo arrive at the exact loss thit that occurs each year in III utah due to weeds but undoubtedly it ani amounts to millions ot of dollars moreover there is an occasional death of some individual caused by eating t in the roots of a poison weed in III addition there Is a groat great annoyance and suffering from hay fever which is caused largely by weeds some of iho ethe ways by which weeds cause losses are robbing the crop of moisture and plant food lowering the crop yield increasing the cost of producing crops and marketing reducing the value of farm products harboring lai hai boring insects and diseases and poison weeds causing heavy losses to livestock teg losses agencies and distribution natuis and control ot of weeds Is discussed in circular 71 of tile the utah agricultural experiment station written by william peterson and D C this circular is now a callable val lable for use |