portance of pruning stressed to fruit growers 'TYSBURG, Pa. - . ru ies outlined to County fruitgrowers 'bard demonstrations , the beginning of this can add years to the ’live life of peach trees maintain the peach m the Com o3ith, according to Dr. jd Petersen, plant (legist f° r •rative Extension , e of The Pennsylvania University. (each canker disease , by the cytospora , s m killing large •rs of trees and forcing , rs to curtail plantings New York, Ohio and ATTENTION: DAIRYMEN To save money and improve milk production Feed Dairy Special 40XX The key to efficiency in any dairy feeding program is getting maximum performance out of homegrown grains and roughages while keeping out-of pocket feed costs down. That’s why Vigortone developed Dairy Special 40XX for use in legume hay or haylage rations. This potent pre-mix contains abundant phosphorus to balance off the high calcium content of these roughages and provides proper levels of other major minerals, trace minerals and vitamins. Legume programs are well balanced with Dairy Special 40XX, and the need for supplemental protein is much less. Best of all, your cows soon respond to their full hred-in potential to produce milk. Over 150Servicemafi in PA alone!! LEON B. HERSHEY Box 166 Paradise, PA 717 442 4807 RON L HERSHEY R 2 Gap, PA 717 442-8573 JASON E. MILLER R 4 Lancaster, PA 717 393 7244 WM.J. YODER R 1 Conestoga, PA 717 872 8047 ELI KING “1 Box 59 Ronks.PA 717 768 3608 Berks Co. RA D ALVIN ESH B °x 72 Intercourse, PA 717-768 3128’ H MELVIN CHARLES nl Washington Boro PA 717 684 5783 p ETE CALDWELL RI Windsor. PA 717 246 1046 r ALPH e brungart Loganton. PA 717 7252355 elamg HOOVER K 1 New Holland PA 717 354 0432 Michigan” added the University Specialist who went on to say that he is convinced changes in pruning and other orchard practices can keep peach growing profitable. “While there is no control for this fungus which attacks all stone fruits, we do un derstand the problem and can live with it,” he added. Petersen explained how the fungus organisms, always present on air currents, spread during rainy weather when the temperature is above freezing. Wounds created by pruning cuts, dead tissues - Better rations with Vigorfone. -MIXES Especially Now! 50 warehouses—over 5400 servicemen 3 manufacturing plants PHILIP A. HAYES Oxford RD2 215-932-8736 CHRISTIAN L.STOLTZFUS R 2 Box 409 Elverson, PA 215-286-5995 CHESTER SOLTYS, JR. Spring City, PA 215-948-3647 ERIC W. FOGG West Chester, PA 215 696-2283 JAMES STUTZMAN SONS R 3 Kutztown, PA 215-683-7198 ELWIN REAM Hughesville. PA 717-584-4085 SHERWOOD A. WITHER Box 138 Berrysburg, PA 717-362-8823 Uh HARMONY \\ Tun the feed lot J J areas caused by Winter injury, or dead dormant buds are suitable infection sites on peach trees. “In one year an infection site will enlarge to girdle small twigs; in two years limbs up to one inch in diameter can be killed by the canker”, said Petersen. “The first step in reducing the incidence of canker lies in training peach trees to a modified central leader, a stronger tree less subject to limb breakage than the conventional vase - form tree” continued the specialist. He called for a change in the time of pruning, urging the growers Dairy Special 50XX for the dry cow Proper nutrition for the dry cow is just as important as for the producing cow. It’s during this period that the stage is set for the level of production she will have throughout the lactation period. Vigortone’s Dairy Special 50XX is prop erly suited to fortify high roughage ra tions of dry cows and keep them in ex cellent condition right up to freshening. See your Vigortone dealer soon Your Vigortone dealer has several prod ucts and programs to promote better milk production and help you save money. See him soon. Learn why more dairymen are feeding Vigortone especially now. cost less . . . JOHN KLEMIUK Box 638 Hammonton. NJ 609 561-0982 RAYMOND CANTI RD2 Phillipsburg. NJ PAULI. KREIDER R 2 Palmyra, PA 717-964-3791 WILMERJ. WEAVER R 1 Fredericksburg, PA 717-865-6710 MARLIN GEESAMAN R 2 New Port, PA 717-582-4598 RUSSELL FRY Duncannon. PA ROMAN YODER R 1 Grantsville. MD 301-895-5302 KAREN TAYLOR R 3 Cambridge. MD 301-228-3989 ED FOGG Malvern PA 215 647 6818 C OWEN FRANKLIN R 3 Bridgeton. NJ 609 451 5919 201-859 1314 to wait as near the tune of bud swell as possible, and suggesting that summer pruning leads to fewest in fections. “A spray with Bordeaux mixture at Time of leaf drop helps reduce cankers and controls the leaf curl disease”, Petersen concluded. Petersen participated in stone - fruit pruning demonstrations sponsored by the Cooperative Ex tension Service and featuring Dr. C. Marshall Ritter, Extension pomologist. County Agent Thomas E. Piper presided at the field sessions which were hosted at 9 a.m. by Thomas 0. Oyler, Sr., Gettysburg R 3 and at 1 p.m. by the I. Z. Musselman Orchards, Orrtanna, and Kane Brothers of Cashtown. Dr. William Bode, entomologist at the Penn State Fruit Research Laboratory shared in the morning session. “The most important pruning in the life of a peach tree is done the day you plant it” said Dr. Ritter as he demonstrated a technique for pruning newly set trees to favor a central leader. “Plant the tree, remove one ROHRER’S CARRY A COMPLETE LINE OF FARM AND GARDEN SEEDS AGRICULTURAL CHEMICALS ORTHO UNIPEL FERTILIZER Catalog mailed free upon request covering full line of vegetable and farm seeds. p SMOKETOWN, PA Phone Lane. 717-299-2571 Lancaster Farming, Saturday, March 19,1977—113 quarter of the top, then let it grow. When growth starts and the shoots are about two inches long, return to select the desired well - distributed branches. Training which is h two-year process, is dif ficult; pruning established trees is easy by com parision,” added the specialist. Turning to the bearing trees, Ritter pointed out that such a tree may produce up to 7000 flower buds while 500 peaches, size 2\z inches and up would be considered a good yield. Heavy pruning is necessary and requires removal of Vz the shoots from the tree and cutting in half those which remain. Leaving some small one or-two bud-stubs on the main trunk will promote cir culation and keep the tissue alive. Because of the very cold winter, growers wanted to know how to identify signs of Winter injury. Ritter pointed out that plump buds silvery in color are generally good. The bark on twigs should appear red and not be shriveled or wrinkled. “Cut representative buds in cross section,” suggested Ritter. “The live ones will be green or yellow; the dead ones will be brown or black”. “Wind chill temperatures have little or no influence on the buds but air temperatures which dip under 12 to 15 degrees below zero will kill peach buds” he added. Several growers reported taking bouquets of peach branches indoors to force bloom. Ritter cautioned that results could be inconclusive unless you can see that the flower contains a healthy pistil. “If Winter damage is suspected, delay pruning until growth starts so as not to remove live buds which appear on terminal growth,” cautioned the specialist. In response to a question, Ritter recommended painting the trunk and base of main branches with a white latex paint. This reflects sunlight and helps prevent wide temperature differences within the tree. “The problem is most critical during sunny days when the orchards are snow - covered. While the air temperature may be 40 degrees or less, tem peratures beneath the bark may reach 70 degrees creating a stress which may cause the bark to split” he said. “The best quality cherries are produced on trees which are pruned annually” ob served Dr. Ritter as he went on to demonstrate how these trees should be pruned. “If the fruit will be harvested mechanically, the center of the tree should be fairly open and the top ’ shaped somewhat like a mushroom.” Petersen cautioned the growers to use Benlate in combination with another fungicide to prevent the development of tolerant strains of the Brown Rot organism reported in other states. He announced that Actidione, a fungicide for post - harvest control of cherry leaf spot and use on non-bearing cherry trees will be available this season. Professor Bode warned that adult pear psylla became active on warm Spring days and will begin laying eggs in early April. “An oil and phosphate spray applied before egg laying begins is helpful in keeping this insect under control,” he concluded. TRY A CLASSIFIED AD!
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