Spindle streak virus affecting wheat NEWARK, DEL. The unusual, all too common occurrence of wheat spindle streak mosaic virus this spring has many area wheat growers wondering what to do about the disease next year. “This is the first time we have positively identified the disease in Delaware," says University of Delaware extension plant BUSH HOG 250 SERIES ROTARY CUTTERS The Perfect Choices For All Medium-Paly Cuffing Jobs _Xhe 250 Series rotary cutters feature a new functional design with plenty of eye appeal. Each model is offered in pull and lift-type versions. Pull models are self-leveling, with a choice of manual or hydraulic height adjustment. A 3-point Category 1 or 2 hitch is offered on 255 and 256 cutters. A 3-point Category 2 hitch is offered on 257 models. The new box-type triangular tallwheel design provides maximum strength when turning. The tallwheel attaches to the cutter strongbacks distributing heavy shock loads ancounterad when operating in rough terrain. B CONTACT YOUR LOCAL BUSH HOG DEALER BENCE’S FARM EQUIPMENT FARMERSVILLE RO2 EQUIPMENT, INC. Bedford, PA 15522 RD 4 814-623-8601 Ephrata, PA 17522 717-354-4271 B,N SM RST GEORGE N. GROSS, INC. i c, ; n. 5261 Davidsburg Rd. 133 R othsviHe Station Rd. Dovm. PA 17315 717-626-4705 717-292-1673 CLAPPER FARM EQUIPMENT ROl Alexandria, PA 16611 814-669-4465 THOMAS L. DUNLAP RD 1 Box 105 Jersey Shore, PA 17740 717-398-1391 pathologist Bob Mulrooney, “Since infection takes place soon after wheat becomes established in the fall, by the time symptoms appear the following spring, nothing can be done to control the disease on the current crop.” The virus is transmitted to wheat by a soil fungus called Polyxma graminis. The fungus produces • 5/6/7 Foot Models - Available 3-Point Lift or Pull • Tapered Rear Design - For Easy Discharge • Unitized, Z-Band Deck Construction A. L. HERR & BROS. 312 Park Awe. Quarryville, PA 17566 717-786-3521 KELLER’S FARM MACHINERY, INC. 116 Richlandtown Pike Quakertown, PA 215-536-4046 spores which attack wheat through plant roots. Soils containing virus infected fungus can produce virus infected wheat any time a susceptible variety is grown, Mulrooney says. The long cool, wet spring weather has been very favorable for infection and symp tom development. “At present, we don’t know how Slip clutches, round blade holders are standard equipment. Options include safety chains, heavy duty blades, and jackstands(for pull models). The Bush Hog 250 Series rotary cutters do have a new 100 k... but you can rely on the same dependable quality of performance that is a trademark of implements from Bush Hog - the innovators of rotary cutter design and develop ment. offered for lift models. The lop flex A new hMvy duty gearbox design on 256 and 257 modals makes service fast and easy. All gearboxes are 540 rpm with 1000 rpm follow ground contours. Tie rods stabilize the cutter to prevent bouncing on rough terrain during transport. gearboxes available on 257 models. Heavy duty ASAE Category 4 drive shafts are standard. LEHIGH AG EQUIPMENT RD #2 Wescosville, PA 215-398-2553 MILLER SALES & SERVICE INC. Stewartstown, PA 17363 717-993-2470 NEUHAUS’ES INC. RD2 York, PA 17403 717-428-1954 PEOPLES SALES & SERVICE Oakland Mills. PA 717-463-2735 A 3-point Category 1 or 2 hitch Is link is slotted allowing the unit to STANLEY'S FARM SERVICE STOLTZFUS FARM SERVICE Cochranville, PA 19330 215-593-2407 much yield loss will result from wheat spindle streak mosiac virus. My guess is it will be under 10 percent,” he says. Growers should check their wheat now to determine if it has the virus. Infected wheat will have yellow-green mottled dashes and streaks on the newest leaves. The streaks parallel leaf veins and Threaded ends of Category 2 pins are a new, larger size (1 1/8" diameter) for extra strength. heavy duty steel front nber provides even more ngth. Predrilled holes are ridsd for fast attachment ont safety chains, if desired. PETERMAN FARM EQUIPMENT, INC. 225 York Rd. Carlisle, PA 17013 717-249-5338 RO Box 46 Klingerstown, PA 717-648-2088 UMBER6ERS MILL RD 4 Box 132 Lebanon, PA 17042 717-867-5161 IVAN I. ZOOK Belleville, PA 17004 717-935-2948 Lancaster Farming, Saturday, June 4, 1983—D5 sometimes taper at both ends like spmdles-hence the name of the disease. Streaks can range, from 1/2- to 3/4-inch long and are 1/8- mcb or less wide. Plants infected early in the fall will be mildly stunted and most of the field may be involved. Early spring symptoms include some stunting, yellowing of lower leaves and streaked foliage in the upper part of plants. Some symptoms resemble those resulting from poor fertility conditions. Later the leaf spots may resemble powdery mildew infection, but will lack the white cottony mold growth associated with that disease. “So far, my own observations and those from surrounding states indicate that susceptible wheat varieties include McNair 1003, Potomac, Hunter, Arthur 71, Coker 762, and Severn,” Mulrooney says. “Varieties with no streaking have been Tyler, Hart, Pioneer 2550, Massey, and Feland. By season’s end we should have a good idea which varieties are resistant for use where wheat spindle streak mosaic vims has occurred." Besides using resistant varieties, another excellent control would be to plant no wheat at all in infested fields. beef cattle and calves. * One “EctibanTape" per animal is sufficient. * Use by wrapping tape around existing ear tag. Activate by rupturing internal ampules with your thumb. * Full season fly control. * No need to puncture animals ear year after year with insecticide tags. ZIMMERMAN’S ANIMAL HEALTH SUPPLY RD#4, Box 141, Lititz, PA. 17543 Phone (717) 738*4241 3 miles west of Ephrata along Wood Corner Rd. | 9B n Roskamp Low-Pro Feed Low-Pro Feed Processing Center The Grappler Feed Processing Center makes feeding less of a chore its design allows easy installation m almost any location With the electronic control panel. Vibra-Mefers and weigher/dumper, you have a complete feed processing center at your finger tips.. Forget standing in the cold Or starting those fuel-guzzlmg tractors for portable mixers Simply push a button and let a small 5 hp or Vh hp motor do the work Instead of you ROLLER MILLS FOR ANY PURPOSE See Page D-37
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