ADADC Elects Officers SYRACUSE. N.Y. Ray mond Johnson, president of A meric ’ ~ Dairy Association and Dairy Cl icil, Inc. (ADADC), was re-elected at a board meeting on Feb. 20, held after the ADADC 31st Annual Meeting, at the Sheraton Inn in Liverpool. Johnson has served as president of ADADC for eight years. He serves as secretary of United Dairy Industry Association (UDIA), and is a member of the UDIA personnel and finance com mittees. He is also a member of the National Dairy Board. Johnson operates a 450-acre farm in Schaghticoke, Rensselaer County, with his son. They milk 75 Holsteins. Also elected were: vice presi dent, Ronald Harris of Stanley, Ontario County; second vice pre sident, Allen Ostrander of Ther esa, Jefferson County; treasurer, Robert Harrison of Skaneateles, Onondaga County; and secretary, David Hardie of Lansing, Tomp kins County. Black shank and blue mold are two of the biggest enemies a leaf of hurley or flue-cured can have. And on a cost-per-acre basis, nothing protects tobacco plants from these diseases like Ridomilf Just one application (at labelled rates) in the field before transplanting fights black shank, blue mold and Pythium all season long. Ridomil stops disease on contact in the soil. Then its systemic n action allows it to be absorbed into the plant through the roots, keeping ' it safe from disease. You get a healthier plant, higher quality tobacco. So this season, use Ridomil. Before a few of tobacco’s biggest enemies beat your bottom line black and blue. m _ „ If you want to know more about Ridomil, PifMMllH call Furney Todd any Monday on the Monday Hotline. IIIIIUIIIII* sponsored by GIBA-GEIGY. 1-800-862-2229 CIBA-GEIGY 01990 CIBA-GEIGY Agricultural Division PO Box 18300. Greensboro NC 27419 Always read and follow label directions AND BLUE. Ray Shipp, associate professor of agronomy, Penn State, above, listens via satellite to a call placed by Paul Craig, Dauphin Co. extension agent, who moderated questions and answers at the Crop Production Satellite Seminar. (Continued from Page B 14) Combines are another compac tion culprit. Often, the grain tanks hold 160-180 bushels of com and create enormous pressure on the tires and lots of compaction on the soil. Trucks in the field, holding the grain from the combine, often sup- Lancaster Farming, Saturday, March 16, 1991-815 Satellite Conference “ Wc must manage to clminalc or not cause soil compaction on our farms, or wc must manage our inputs to reduce the problem should it already exist,” said Hoffman. Also at the satellite conference, experts said that com growers should study corn hybrids carefully and consider the conditions of the farm itself before selecting the seed. Com hybrid differences could amount to a difference of 30-40 bushels/acrc of yield potention, according to Greg Roth, assistant professor of corn management at Penn Stale. “One of the most important characteristics is hybrid maturity,” said Roth at the satellite seminar. “This is important because wc want to hayc a hybrid that matures year-in and year out on your particular farm.” Hybrids arc classified m two maturity types; relative maturity and degree-day. Rela tive maturity includes the anticipated amount of moisture content. The degree-day mea sures heal units or growing degree days between planting and physiological maturity. Other factors going into the selection of a hybrid include: • Planting day, end use, and harvest lime. • Soil types. Should we use long- or short season hybrids? • Drought potential. Is the seed drought stress-resistant under a range of maturities? • Slandability, For grain producers who are going to have com on the stalk till late November or early December, will it tolerate different stress factors, including com bore, stalk rot, and other problems? • Disease tolerance and resistance. Far mers should identify specific problems with diseases on their farms. • Yield. Hybrid test reports and other sour ces of information can provide these factors. •Cold tolerance. “It’s especially critical if we’re planting com in no-till environments where soils are cool and moist and the com plant is growing very slowly,” said Roth. “It’s especially critical when we’re planting com in no-till environments with a high level of residue.” There are a number of stresses, including insect and slug damage, that the com seedling can be exposed to. Yield stability for the hybrid is important There are two types; offensive and defensive hybrids. Offensive hybrids provide good yields under optimum conditions. The defen sive hybrids maintain a good yield across a wide range of growing conditions. ‘ ‘ In most cases in Pennsylvania, we want to be looking for these defensive characteris tics," said Roth. port 320-350 bushels of com at a time (especially with high moisture com). Instead of bringing the truck onto the field and creat ing tire traffic compaction, the far mer should park the truck in an adjacent lane and unload the com to the truck off the field. Study corn hybrids Hybrid factors