Show AST OUS POTATO IX C. C jp Pathologist Announces Dis- Dis CI cry of Importance to Spud Growers of or Basin td IB B. B L. L Richards plant p. p t ol- ol the experiment e St station I ut charge h rge of botanical work at attah attah attah tah agricultural c college has ana anI an- an HE ed t I ted a discovery which is consid- consid co consid- consid oi paramount importance to toa tod a nd id d other intermountain states Richards pilchards I hards as the result of or a sem se- se m of or carefully conducted expert expert- t the college experiment sla- sla luis has shown that the disastrous o I. I disease which swept over overl during l the past summer Is- Is some wa way vay h by a a small ln- ln Cl Q n as the hopping plant or This insect pune Wie Rhe he potato plant with the re- re that thai the underground tuber growing the plant leaves I l yellow and ald red rell and a secy sec y growth commences s s. s Richards Richards In his t experiments r raven roven vell conclusively tat m thi fh dis dis- only t fie tte insect H the thC potato plant Iii thought though that perhaps the inin in- in in iM i'M eels ts a virus or 01 PO poison Into ilant nh t al arid and l ther therefore fore itself acts a the carrier 0 of the disease lie c same as U the e mosquito ItO carthe car car- the malaria fever fevel and add the thu leaf lear r r carries rles th the i which pro Iwo the he curly top in sugar Letts i this is at al t present Is just u n theory are many facts justify tHy a j elief elier eds of or thousands thousands' of 01 image to the potato fields Holds of ii Colorado resulted fro from tin UIt 11 Se per rapidly rapidly- which hutch spread so rapidly the g the he past summer i continue to tread spread atI at tro tle v maintained this summer l rath- rath th- th its t assert it il will create out or of o ott st st seri serious Us agricultural tt lu the thc west uses from the government nut bill bu- bu crop estimates show allow that harvesting only OU Vu j per Jer l 1 11 talo ato crop this tins year This low j largely eh due to the presence now new disease The rhe entire crops l Lake Davis an and Weber counIe coun- coun lt Ie fre especially hard haid a d hit b by the theand hied and nd there is 15 hardly a field in III lire state that has ims not been t 1 il d r Richards s spoke of or It It t Has as as Ul Ulc thed the tho disastrous d c disease that has has' over ever 1 I potato potato plant ft l' l probably ter lor agricultural t O l I 1 from V various rI l lS parts df t LUry wile who observed cd the disease time while 0 in Ut Utah h last m III 1 i- i were at a lo lots loss s to to orJi i any lion ul Dr H lei Richards Richards' Bards Bards' l C lead to the apu ap- ap u l of control measures measures In to toi InI Inthe I work ark the departments ts o of pathy path path- y lid ud entomology find and the pe e. exile exile- I 1 at the thc college will ashe as- as fi n he lie lead n 11 explanation of the tho disease u by Dr Richards is that the ot the lire affected plant curl and I color new branches blanches and begin to grow at the axis o of let lear leaf and antI underground tubers rowing germinate and a sec sec- U au g growth of tubers is formed formed In Iu some sonic cases Is Is- that thai t second cro crop of or very small porn po e 0 rn may may mayhe ay be he i Pl IoL in certain I on The Tho growth of a great J I mall bunched leaves gives the of oC a In fu the axis Cleaves leaves or the top tOl o of tho the plant I ler r experimental conditions the of oC the disease are art rev observable within ten days r 1 tile the Insect has teen been placed on all plant In carrying out mil IllS his experiments eXl n li chard obtained se from in Otc Ore I hal had not gr gl grown ow fn In area rea fh Thib seed aced st nt hn h as n d in iu a u greenhouse at the eele eel col- e under uHler tight Insect cages or cov- cov Hg sg Voder some ome of or those cases cages Richards ichards liberated a few of or and in every ery case the tho l p. p d l symptoms of or the disease Uscu In 18 c ca c 0 wh whore where re the insect insert was vas not c l In ill the cage did the 1 o clap P and a normal healthy w 1 t resulted Similarly cages cage placed over o seed at tho the time of lt It ng in an ordinary field The results were the same us its exposed plants were diseased 1 and antI covered plants showed no indications indications' of tho the disease Until this s summer r both hou th tha the disease anti and th the insect on au such such n n l large scale scalo were new to science and ami a agriculture o In ill this section Dr Rl Richards Richards' discovery dis covery gives 1 pathologists a a. HOJI liol upon which they nUl may begin the thew w work rk of ot ulUmal ultimately controlling the disease it Is said |