Show METHOD OF CONTROL FOR CORN COHN EAR WORM by J C HOGENSON extension agronomist the control ot of the corn codr worm is a 0 rather difficult problem because it cannot vo bo handled by spraying with any kind of chemical poison whon its life cycle Is understood however lio its control becomes bec omea it rathor rather simple though continuous procesa pro proc cosa the adult or of tho the corn ear car worm la is a moth which lays its ita eggs at random on any part ot of tile tha corn plant ono one Con cinialo conialo ialo moth lays about 1000 eggs during a period of about 12 days there are armally from one to four our generations Bonera tlona in a year depending upon tho the length of the tha worm season tho the eggs hatch about eight days after thoy they are deposited after hatching tho the worm enters the ear car and grows growa rapidly it ts is during till this stage of its ita development that dam ago to tho the corn la 19 done when fully grown tile tho worm leaves the our oar usually by boring out through tho the husks and drops to tile the ground it enters the tha soil anti and boros bores down to a depth of from one to nine inches here pupation takes pla co curing this period it Is vory very delicate find holp loas when tho the changes have been completed which usually take about 14 days afo full grown moth emerges from tho the soli goll the rho control of this peat lies mostly in destroying the pupae in tho the soil during its lorcata loU cAta anti and helpless period this of three enree practices 1 rotation do not plant cirii on the same ground two years in sue one cession 2 doop deep weekly 31 3 deep fall plowing to destroy tho the eggs of the last generation it these three practices are used vic the corn far car worm can usually be kept under control pl |