Show III EFFORTS BEING MADE T TO 0 PREVENT SPREAD OF EUROPEAN CORN BORER l l l l mi Prepared by the United State Statu Department of ot Agriculture Special efforts to prevent pre the European European European Eu Eu- corn borer from spreading to the corn belt which it now threatens to do from the southern shore of ot Lake Erie will be made this season by tho the United States Department t of Agriculture The moat most Important single single sin sin- gle ale measure will be the rigid enforcement enforcement enforcement enforce enforce- ment of ot federal quarantine regulations by the federal horticultural board of the department la In coo operation co-operation with the Canadian government go and the various various va va- va rious states where tho the pest now ex ex- lets This will wUl prevent other Infestations Infestations Infesta Infesta- of the insect from coming Into the United States and will go a long longway longway longway way toward keeping the borer from being carried d to other parts of the country The bureau of ot entomology of ot the department has prepared Its plans for tor Investigating the Inse Insect t which was discovered In this country during 11 1017 17 with a view to applying and amplifying methods of ot controlling it The slight Infestations along the lake shore It Is believed will not cause serious Injury to corn there Immediately giving ample ample ompIe am om- pIe time for n a careful study of the In Insect Insect insect In- In sect and ond Its behavior In this new environment environment environment en en- before actual commercial damage Is done For this purpose the bureau will establish Immediately a number of entomologists at ot Sandusky Ohio May Have Havo Come Como From Canada The Infestation on Lake Erie It Is 19 believed originated In the province of ot Ontario Canada where a severe In In- has hns been present for several years Favorable winds during the flight season of the moth In the summer summer sum sum- mer of 1021 1921 are supposed to have haye compelled the adult Insects to fly across the lake Inke to the American side where they became established along almost the entire southern shore Records Records Rec lee of the weather bureau indicate that for tor the first time in five or six years ears the winds prevailing then blew from the north or northwest for several several several sev sev- eral days at a time It Is not thought therefore that this condition will prevail prevail pre pre- vail again for several years ears and other moths be blown over In order to watch this phase of ot the matter however the bureau of entomology entomology entomology ento ento- will request permission of the lighthouse service to station observers during the flight night season at the powerful powerful powerful power power- ful lights maintained along the southern southern south south- ern shore The They will ascertain if possible possible possible pos pos- sible cr moths are attracted to the lights from the other side The federal quarantine Includes cities and towns In Massachusetts three In Michigan 12 In New Hampshire Hampshire Hampshire Hamp Hamp- shire In New York 42 in Ohio and 13 In Pennsylvania and the shipment of corn and ond broom corn Including all parts of the stalk cut flowers or entire plants of chrysanthemum mum aster cosmos zinnia hollyhock and cut flowers or entire plants Plants o of I gladiolus and dahlia except the bulbs to other states throughout the year Control Practices Recommended To control the corn borer on the farm the department recommends the following practices 1 Burn or otherwise destroy before before be be- fore May 1 of oi each year all cornstalks corn cobs corn stubble vegetable field and flower ower crop remnants weeds and stemmed large-stemmed grasses of the previous year 2 Keep cultivated fields fence rows row field borders roadsides and such places free re from large weeds or stemmed large-stemmed grasses 8 8 3 Cut corn close to the ground 4 Cut and remove sweet corn fodder from the field as soon as the ears are harvested Feed direct to live stock or place In silo 5 Cut and remove field corn from the field as soon as the ears are ma ma- ture Feed the stalks to live stock as ns soon as possible and ond burn or otherwise dispose of ot the uneaten parts before May 1 following Shred or cut the fodder to Increase Its consumption 0 G. Plow under thoroughly In the fall taU all oU Infested cornstalks corn stubble stubble stubble stub stub- ble other crop remnants weeds and similar material which It Is s Impractical cal to destroy In any other manner When necessary to adopt this practice practice practice tice an a attempt should be made to plow under all the material to a depth of at nt least 0 inches 7 Plant small areas of early sweet corn to act as a trap crop adjacent to fields Intended for field corn or late l LARVAE PAPAS r 1 tj r I I ADULTS ADULT 4 N MALE I I FEMALE r g I t f JJ rf 1 I WORK OF Or LARVA IN INTERIOR OF STALK CORN European Corn Borer In Various Stages Stage and I Its s Work sweet corn Feed or otherwise destroy destroy destroy de de- stroy this early carty sweet s corn as soon as os the ears are harvested or preferably preferably preferably prefer prefer- ably Just before that period If the grower Is willing to sacrifice the ears Such plantings where not destroyed at the proper time constitute a menace menace menaco men men- ace aco to later corn 8 Limit the size of cornfields to areas that can be kept free of weeds 0 D. Do not plant corn within GO 50 feet of beets beans celery spinach rhubarb rhubarb rhu rhu- barb or flowering plants Intended for tor sale 10 Do not throw the uneaten parts of cornstalks used as feed or bedding Into the manure pile pUe unless this material material materIal mate mate- rial Is worked Into plies piles containing enough fresh horse manure to produce heating beating 11 Do not transport outside of the Infested area any of the plants or plant products listed In Federal Quarantine antine antino No 43 12 Do not transport any living stages of the European corn-borer corn outside outside outside out out- out out- side of at the tIle Infested areas 13 Do not place In swill swill container container any sweet sweet corn ears or portions thereof there there- of ot or discarded portions of ot celery beets beans rhubarb and spinach when this material Is suspected of containing the borer |