OCR Text |
Show Flag Smut and Take-all may or may not bo in Utah County, but lot us ail bo on tho alert for their appearance and report to tho County Inspector immediately, anything that shows these symptoms. Flag Smut. Flag Smut has black stripes running In tho leaf blades nnd sheath. Theso black stripes are tho spores (or seeds of tho smut) produced by the fungus. Tho upper leaves of tho plant nro moro commonly affected. Sterna aro also slightly affected. Infected plants aro usually dwarfed and rarely head out to produce seed. Usually all stalks from ono stool nro affected. Remombor to look for this dlseaso on tho loaves. Take-all 8ymptoma. lladly dwarfed planU occurlng In distinct patches of varying size and shnpo or singly among healthy plants nro typical of this disease. Theso symptoms flrst becomo ovldent In tho Spring after growth of tho healthy plants aro well started. DIsonBed plants show dwarfing and a llttlo later abnormal dark green coloration ot tho fall loaves, dying of outer loaves nnd fall tillers and blowing blow-ing somotlmes rotting of crown roots oxcesslvo development of splng tutors, or somo plants may bo entirely killed. Dadly Infested fields may havo only a few healthy plants but with 'Blight Infestations It may bo dlfllcult to find tho moro or less Isolated diseased plants among tho healthy ones. Spots or patches of diseased plants show up horo and there without regard to tho typo or condition of tho soil. Most or tho plants in theso spots aro diseased nnd stunted thus giving a sharply defined de-fined margin to tho area. In spots duo to local unfavorable soil conditions, condi-tions, all tho plants usually decreaso In height rather gradually from tho edge toward tho center. Tho writer saw a field four or flvo years ago answering literally this description de-scription but It was not thon known that this dlsonso was In the United States. It has Just recently been I located In Kansas, Arkansas, Oregon and New York nnd was previously 'known in Illinois. Watch closely your I crops and report Immediately any Irro-'gulnrltls Irro-'gulnrltls or troubles that you mny find. |