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Agricultural Experiment. Station WINTER MANUAL OF PRACTICE IN ECONOMIC ZOOLOGY. WHAT TO DO IN WINTER AGAINST THE MORE IMPORTANT INSECT PESTS OF THE FARM, ORCHARD AND GARDEN. OHIO Agricultural Experiment. Station. WOOSTER, OH IO, U~ S. A., J ULY, 1905. BULLETIN 164 THE BLACK-CAPPED CHICKADEE, Parus atrzcapillus. (After Washburn.) The Bulletins o_f this Station are sent_free to all residents o_f the State who request them. Persons who desire thez'r addresses changed should give both old and new address. All corres­ Pondence should be addressed to EXPERIMENT STATION, Wooster, Ohio. OHIO AGRICULTURAL EXPERIMENT STATION BOARD OF COli~B.OL CHARLES F. E:ETTERING Presid.mt ••..•.• • •••• • • • • • • • • • • • • • • • • ••••••••••••••••• Daytou LAWRENCE E. LAYBOURNE, Vice President •.•. • • • • • • • • • • • • • • • • • •••••••••••••• Springfield 0. E. BRADFUTE •••••••••.•••••• • • • • • • • • · • • • • • • • • • • • • • • • • • • • • • • • • • • • • •••••••• Xenia JOHN KAISER ..... , •. , , .•••• , • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •.,, ••• :Marietta BENJ. F. :McCANN •••••.•••••• •. • • • • • • • • • • • • • · • • • • • • • • • • • • • • • • • • • • • • • •••••• Dayton EGBERT H. :MACK ...................... • .. • • • • · • • • .......... • • • • .. • .......Sandusky :MRs. ROBERT G. PATERSON ••.•••••••. • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • ......Columbus CHARLES V. TRUAX, Director of Agriculture • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •• , ..Columbus CARL E. STEEB, Secreta111 •••..••. • • • · • • • • · • • • · · • • • • • • • • • • • • • • • • • • ••••••• , ..Columbut STATION STAFF C. G. WILI.LUI:S, Director ADMDliS~RATION '8:0B.~IC1J'L~'O'B.B Tin: DIRECTOR, Chief J. H. GOURLEY, :M. S., Chief WILLIAM H. KRAJII!ER, Bur8Gr W. J. GREEN, Co71.8'UJ.ting Horticulturist W. K. GREENBANK, Editor F. H. BALLOU, Associate, {Newark) MARGARET WILI.LUI:S, A. B., JOH})! BUSHNELL, M. S., ABBistant AGRONOMY C. W. ELLENWOOD, Assistant F. S. HOWLETT, B. 8., Assistant THE DIRECTOR Chief I. P. LEWIS, B. S., ASBistant (:Marietta) J. B. PARK, Ph. D., AssociGtel ROY MAGRUDER, B. S., Assistant L. E. THATCHER, Ph. G., AssociGte W. F. ROFXA!I, B. S., Assistant F. A. WELTON, :M. S., A88ociGte C. E. DIKE, B. S., Assistant SOILS V. H. MORRIS, :M. A., Assistant OK.U. E. THORNII!, M. S. A., Chief 0 . .A, PATTON, Assistant J. W. AMEs, :M. S., Asso. in soil chemistf11 G. H. STRINGFIELD, B. S. A., Assistant F. E. BEAR, Ph. D., Assoc£Gtel .Alllll[AL INDUSTRY L. D. BAVER.._B. S., Assistant G. BOHSTEDT, M. S., Chief A.. BONAZZI, ~. Agr., Assistant B. H. EDGINGTON.._ D. V. M., A8Bociate G. W. CoNREY, Ph. D., Assistantl D. 0. KENNARD, ~. S., AssociGte I. H. CURIE, B. S., AMistant D. S. BELL, B. S., Assistant T. C. GREEN, Assistant R. :M. BETHKE, Plt.. D., Assistant !'ARM KANAGBMBNT C. H. HUNT, A. :M., ABBistant W. L. ROBISON, :M. 8, Assistant 0. W, MONTGOMERY, Chief P. S. WHITE, B, S., ABBistant L. B. NETTLETON, Assistant A. B.. WINTER, M. S., ABBistant DISTRICT EXPERIMENT FARMS BO~AliY H. 0. YOUNG, Ph. D., Chief liortheastem Test·!'arm, StroJlgllvWe Roy 0. THOMAS, M. .A., Assomte J. '!'. WILSON, Forema.n R. B. WILCOX, M. S., ABBociGtel Southwestern Test-Farm, GermantoWII FBEDA DETMEBS, Pia. D., ABBista.t HENBY M. WACHTEB, Manager PAUL E. TILFORD, B. S., Assistant W. J. YOUNG. M. S., Assistant Southeastern Test·!'arm, Carpenter CHB:MISTBY S. C. HARTMAN, :M. S., Supt. Mariette J. W. AMES, :M. S., Chief MABEL CORBOULD, B. S., ASBistant COUNTY EXPERIMENT FARMS c. J. ScHoLLENBEKGER, Assistant SMiami Co. Experiment !'arm ~ro:v WM. A. SIMKINS, B. S., AMistanC l Madison Co. Experiment Farm, London RAUB H. SmoN, A, M., AB8istant H. W. RoGERII, Supt., London CLIMATOLOGY Pauldinl Co. B:r;:periment Farm, Paulding W. H. ALEXANDER, Cllfef (Columbu)l 0. A. PATTON, Obser11er H. R. HoYT, Supt., Wooster DAIRYING Clermont Co. Experiment !'arm, Owensvi!lt C. C. HAYDEN, M. S. Chiff ~ &milton Co. Experiment !'arm, 0. F. MONBOE, :M. S., Assistant W. E. WEAVED, Supt., :Mt. Healthy A. E. PERKINS, M. S., Assistant BN~OMOLOGY washington Co. Experiment !'arm, !'leming { Washin&ton Co. Truck: Experiment !'arm, .!!_ .A.. GOSSARD, M. S., Chief Marietta ;J, s. ~OUSER, :M. s . .A.., ABBociGte S. C. HA!ITKAN, :M. S., Supt., :Marietta HmlmBRT 0SBO!Il! p. SC., ABBOciGtel <l. R. CUTRIGHT,' M. 8.1 ABBiei.;.'lt Mahoning Co. Experiment Farm, Can1leld L. L. HUBER, Ph. D., .ll.Usitant !Trumbull Co. Experiment Farm, Cortland .A.. E. MILLER, M. S., Assistant A. W. NETTLETON, B. S., Supt. (), R, :NBXSWANDEB, M. s., Assistant Oan:tl.eld !'ORBSTRY Belmont Co. Experiment !'arm, St. ClairsvWe EDMUND SECIIEST, B. S., ABBo. Di1'., Chief G. M. DEGBOFT, MM~<¥.1161', St. Clairsville 0. A. ALDERMAN, M. F., Assistant STATE FORESTS J. J. 011'0111:LEY, Ph. D., Assistant F. W. DEAN, B. S., Assistant Athens, Lawrence, Scioto, Boss, and Pike B. E. LEETE, M. F., Assistant Counties. lThe College of Agriculture, Ohio State University, Columbus, cooperating. 'The U. S. Department of Apiculture, cooperating. BULLETIN OF THE Ohio Agricultural Experiment Station NUMBER 164. JULY, 1905. WINTER PRACTICE IN ECONOMIC ZOOLOGY. BY H. A. GOSSARD. For the purpose of enabling the farmer and fruitgrower to follow correct practice in combatting his insect enemies, I have thought best to compile a set of four manuals which will briefly indicate the whereabouts and stages of development of our more important farm, orchard and garden pests during each of the four seasons of the year and suggest methods for destroying or control­ ling them. This is the first of these manuals, embodying the rules for winter practice. So far as possible, I have discussed only those species that are susceptible to winter treatment, but in some instances it may seem that I have included matter that should appear only in the fall and spring treatises, a confusion that arises from the difficulty of sharply separating late fall from early winter and late winter from early spring. Some of the insects herein mentioned are fought more effec­ tively during other seasons than winter; but many agriculturists have more spare time then than at other periods. and while willing to do anything possible during their leisure winter days, will do nothing at the critical moment when measures would be most effective. For the help of these men, I here indicate what meas­ ures are possible during the quieter months. It is, of course, assumed that the grower possesses a fair degree of common sense and will not adopt treatment when the insects are found in such sparse numbers that the cost of treatment must far exceed any possible good that can accrue from it; but, to pass to the (1) OHIO EXPERIMENT STATION: BULLETIN 164 other extreme, there is, perhaps, more reason for saying that the foregoing remark should not be quoted as a warrant and defense for lazy, shiftless inaction by those who have little disposition to learn and :yet less inclination to turn whatever knowledge is forced upon them to practical account. What measures to take and when to take them, must finally rest on the judgment of the grower, his ability to decide becoming perfected by experience as an observer and practitioner. To help him observe and acquire experience in the art of practice is the purpose of this manual. FARM PRACTICE. \'rhile not much can be done during the winter to destroy those insects which are recognized as special pests of the field, the rela­ tion between FALL PRACTICE and WINTER EFFECTS is SUCh as to merit a brief discussion. CLEAN FARMING is often the secret of a good crop and the neglect of it is, perhaps, as frequently the explanation of a crop failure. In many instances where failure can be directly traced to insect injUJ·y, CLEAN PRACTICE everywhere about the farm would have obvi~ a ted the disaster. For instance, the CHINCH BUG hibernates in grass and trash around the borders of wheat-fields and would become a much more rare insect if entire neighborhoods would cooperate in in cleaning up, in the fall, the borders of all their fields, their fence­ corners and roadsides, 'l'he JOINT-WORJ.Vr of wheat, Isosoma trztia~ lies as a larva in the stubble over winter, and would be destroyed by burning or deep fall plowing; likewise, the BARLEY JOINTWORM, Iso· soma hordei, the WHEAT STRAW-WORM, Isosoma grande, and the WHEAT SAWFLY BORER, Cephus occidenta!is, yield to the same treatment. A winter or fall TRAP-HEAP of trash often does good service to a well cleaned field. If the field is thoroughly cleaned up, leaving a few heaps or patches of trash, straw, or similar materials, here and there, into which the insects can retreat, large numbers of them will be killed by burning- the piles early the following- spring. WINTER WEATHERING undoubtedly has an important effect on some insects. Where land has been plowed late in fall, many species of cutworms, wireworms, etc., that have prepared for their winter rest, are exposed, not only to their enemies while they are most helpless, but to the freezing- effects of winter, their final destruction being inevitable. Such of these as are in the pupal stage, for example, the CORN-EAR WORM, HeHothis obso!eta, are thus put wholly at the mercy of their enemies and the elements. The grubs of the MAY BEETLES, Lachnosterna spp., and their pupae are WINTER PRACTICE IN ECONOMIC ZOOLOGY. 3 amenable to the <same treatment. The CORN-ROOT LOUSE, which is cared for by ants, when turned up by the plow late in fall, is unable to reenter the ground, and the ants are too sluggish to carry them belov;, making it probable that
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