mmm.IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII_IIIIID"iiii"" !iif!!i!!m'IIII1_IIIIIIIIIIIIIIII_IIIIIIII_lIIImmlll = February, 1919 Extension Bulletin Series I, No. 155-A 1= Reprint of Extension Bulletin No. 147 1I Colorado Agricultural College I EXTENSION SERVICE Fort Collin •• Colorado H. T. FRENCH. Dir~ct()r 1IIIIIIII1IIIIIIIII'lIIIii!!iDIII""lIIIIII'IIIImIllllii"IIIIIIIIIIIIIIIIIIII"lIIIiiiillllii"'lIIIiiiillllhiiilllll!iiilllll!iiilllll!!!!1III"IIImmI,jjii!!iiiiiiiii!ii!,i!i!ii 'iiii"!!I!ii!iiii!mih_mlll'" !!Iiii'''' IIII IIII i1/1 IIII ID IIII D I ~ R I c::=::::aU:=U:::::UI:I!II::C:::=:::I"IIIIl":IIII!iiiIllllii!i:llll!!iiIlllli!iiIlll!iiiillll"'.IIIIIIIIIIIIIIIiIII"'IiIC ·!i:::;:·3:1111!!iiIl:!·:::l'::::,lII:w:::::a'mmlmDlIII"a:'IIIiIj,jIli:" m'" ~. CO·OPERATIV. aXTENSION aERY.ell IN AGRICULTUA. AND HOME ECONOMIC.- a COLORADO AOIIICULTURAL COLLEGE AND U . S. DEPARTMENT OF' D IIII AGRICULTUR~ Co-OP."ATING III IIIl11allllii!iIlll"":IIII!llIIIIIIIlIIIIIIIlIIIIIIIlIIIlmmm"'lIIl11l111i! j~· i!~, :IIII!iiiDlllli lilllli!"IIII"!ii1llll'IIIIIIII:IIII!!iU"illlli!!iIlll!i"~'::::I"IIII... gmm"i!lIIIl!.i!lIIIij,:::I'1III!ii·:IIII!iiiIlll!!i1lllllll1lllllll1llllm1ll1ll1ll Colorado Agricultural College FORT COLLINS. COLORADO Term Expires THE STATE BOARD OF AGRICULTURE HON. CHAS. PEARSON ..................................... Durango. 1919 HON. R. W. CORWIN ........................................ Pueblo. 1919 HON. A. A. EDWARDS. President. ....................... Fort Collins. 1921 RON.. T. S. CALKTNS ................................... Westmlnster. 1921 HON. H. D. PARKER ........................................ Greeley. 1923 MRS. AGNES L. RIDDLE .................................... Denver. 1923 HON. J. C. BELL .......................................... Montrose. 1926 HON. E. M. AMMONS ......................................... Denver. 1926 PRESIDENT CHAS. A. LORY \, Ex-otl'lcio GOVERNOR .JULTUS C. GUNTER. --- L. M. TAYLOR. Secretary CHAS. H. SHELDON. Treasurer EXECUTIVE CO:nMITTEE A. A. EDWARDS. Chairman Eo M. AMMONS H.D. PARKER EXTENSION SERVICE CHAS. A. T,ORY ................................... President H. T. FRENCH ..................................... Dlrector A. R LOVF.TT .... State Leader County Agricultural Agent~ W. F.. VAPLON .......... State Leader Boys' and Girls' Clubs MIRT AM 1\1. HAYNF.S . .. ............................... State lJead('r Home Demon"tration Al!"pnt" ANNA T. BARNARD ......... " ............. Executive Clerk EXTENSION STAFF RALPH T,. CROSMAN .......... , .......... " ... , ...... .l'~ditnr or Pl1hli ... ".ton. 'f A TTnF. E. SHERIDAN ............ Assistant Leader Boys' and Girls' CI1Ib,- P ". rT ,A RK . _ . _ ............ , ..... ' .. .. A nlm.,1 H1IsbAndry STH ART T '. SWF.F.T ............................. }<'ipld A",,,nt in Markpting- O. S. RAYNER. Farm Managpl1\ent D "monRtrations and }<;xtengion Schools \Vm G . .T AMTSON ........ Assistant Stat ... L ... "d"r COllntv Ag-ricll1!ura1 Agent. n. ~. RAy .................. ......................... ~np"iall~t il1 ;\J"!"rol1om'\' n. H. FELTS ........... As"istant Sta te Leader County Agricllltural Agf'nl" COLLEGE FACULTY CO-OPERATING COUNTY AGRICULTURAL AGENTS County County .Jas. E. Morrison • .sterling ..... LOl>:an F.. H. Divelhiss. Delta ......... Delta W. H. Lauck. Colorado Springs. F.IPaso L. Morgan SWl'itzer. Lamar .. PrOWf'rs Fort Morgan .... Morgan F:"ott Wi~ner. Hugo ......... Lln"oln H. H. Simpson. Longmont. .. Boulder Flovd C. Tripp. Goldl'n .......Jetl'erson E. D.- Smith. Durango ....... La Plata WAlter .T. Ott.. Tulesburg .. Sedgwick Gen. R. S-nith. Brighton ....... Adams Walter A. nroom. Littleton. Arapaho" Rod" .. y C. Allred. Glenwood Harold n. Kobey. Craig ...... Motl'at Springs ................ Garfield Harry C. Nevius. Montrose. Montrose .T. C. Hale. Steamboat Springs. Routt Ralah R. Jeffries. Canon Ci'Y. Fremont H. n. Strange. Burlington Kit Carson .C. D. Hye.tt. M,)Ote Vista. Rio G~ande n. P. Newsom. Cortez .... Montezuma Chas. E. Smit!:. TrinJd,,-d. Las Animas D. C. Bascom. Fort Collins. Larimer M'lson E. Kna'lp. Greeley ....... Weld 'V. F. Drogf'. Rocky Ford •..... Otero Waldo Kidder. Walsenburg. Huerfano L ..T. Wormington. Castle Mary Collopy. County Home Dem- Rock .................... Douglas onstration Agent. Colorado 'vrn. n. S~ud"r. Center.... SalZua"h" SprinlZ!' ....... " ...... El Paso O. L. Davis. Pueblo ........... Pueblo EMERGENCY WORKERS Erma Douglass. County Home Dem­ onstration Agent ..... Walsenburg Pearl Horn. County Home Demon­ Mabel Verne Campbell. Urban Home stration Agent.. Glenwood Springs Demonstration Agent ...... Denver Susane- Thompson. County Hom .. Mrs. Rose Cole. Urban Home Dem­ Demonstration Agent ..... _Greele~' onstration Agent •......... Pueblo Fannie E. Virgil. County Home Dem- Agnes Kreutzer County Home Dem­ onstration Agent ........... Pueblo onstration Agent .... Las Animas Eunicp. Kennedy. Boys' and Girl3' Florence Redifer. Urban Home Dem­ Clubs .............. " . Fort Collins onstration Agent. Colorado Spring. ERADICATE COMMON BARBERRY It Is An Enemy of Wheat By W. W. ROBBINS aDd H. E. VASEY Colorado raised 31,276,986 bushels of small grain (wheat, oats. rye and barley) in 1917. It is estimated that if it had not been fo: the attacks of rust, the output for the State would have been an addi· tional 300,000 bushels. The rust caused a loss of about 200,000.- 000 bushels of wheat alone in the United States in 1916. Cereals are the most important staple crops. Rust seriously lower-s their yield. The loss from rust can be gl"eatly reduced by eradicating the common tall barberry (Berberis vulgaris). This shrub harbors and spreads the stem rust of cereals and is particularly destruc­ tive to wheat. It should be eradicated immediately. C. L. Marlatt, chairman of the Federal Horticultural Board, says: "During the past few years the Bureau of Plant Industry of the Department of Agriculture has been conducting a careful survey to determine the relationship of the common barberry to destructive epidemics of black or stem rust of wheat now prevalent throughout the spring-wheat area. This survey indicates clearly that the com­ mon barberry (Berberis vulgaris) is one of the important factors in the development of serious rust epidemics, if it is not imlcl.. d the main and practically the only factor. These conclusions are further supported by the experiences of the past few years in Denmark where the common barberry has been eradicated. No rust epidemics have occurred in Denmark since the eradication has been accomplished." RESOLUTION ON BARBERRY BY COLORADO COUNCIL OF DEFENSE "Whereas, it has been demonstrated by the most accurate scien­ tific work that the black stem rust of wheat and other cereals and grasses develops on both the green and purple varieties of common barberry (Berberis vulgaris) bushes in the spring, producing count­ less numbers of minute spores which may be carried long distances 4 COLOItADO AGRICULTURAL CoLUG£ by the wind to wheat, other cereals and grasses, and wherea .~ the chief wheat-producing states, under the encouragement of the U. S. Department of Agriculture, are engaged in the eradication of common barberry in order to increase food production; and whereas. at has been shown in this and certain European countries that black rust has disappeared gradually and contemporaneously with the bar­ berry bush; and, whereas we have in the Japanese barberry (Berberu thunbergii) a variety which is immune to rust and may be pldnted with safety: Therefore, be it RESOLVED, That we, the State Council of Defense, request that there be no further planting of any barberry (Berberis spp.) bushes except the species and variety known as Japanese barberry (Berberis thunbergii), and that all barberry bushes except the im­ mune variety above mentioned be destroyed on all premises within the bounds of the State of Colorado. Further, we declare the bar­ berry varieties which support the black stem rust, a pest, and we sup­ port the State Entomologist in his efforts to criforce the provisions 01 the Colorado Pest Inspection Act." Fl•. Z. The commOD barberry (Berberia vullrarla). Thla taU apeclea 'a aa eDelD}, ot wheat. Eradicate It. ERADICATE COMMON BARBERRY 5 STATE HAS LAW AGAINST SUCH PESTS From Colorado's Amended Pest Law: "Section 6. Whenever the State Entomologist, his deputy, or county inspector, has reason to believe', or has been credibly informed, that within the State there exist lands infested by pests which are liable to spread to the injury of others, it shall be his duty to make investigation of the SUB­ pected premises, and if they are found so infested, shall notify the owner or persons in charge or control of such premises, in writing, of the nature, ex­ tent and location of the infection and demand that within a specified time certain specified work shall be done on the infested premises for the ex­ termination of the pests, and if the occupant of the infested property re­ fuses or fails to do effective work on the premises in accordance with the in­ structions of the officer in charge, such officer shall take possession of the in­ fested premises, and do the work necessary for the extermination of said pests, as provided in this Act. The reasonable and necessary expeUBea for doing such work shall be paid by the county without unnecessary delay, upon filing with the county commissioners of the certificate of the State Entomologist showing the necessity for such work, the reasonable cost and expenses thereof, and giving a de'scription of the land or property upon which the work was done. And, upon