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Show Fall and Winter Chinch Bug Fight Plow and Burn Hibernating Quarters, Is Advice of " Entomologists. Ry W P Flint, f'hlof KritomoloKlBt. Illinois Nainrnl lllittory Survwy. WNU HervlnB. Having wrought ruin throughout the corn belt during the past two seasons, chinch bugs are now going Into hibernation hiber-nation In such thick numbers that Illinois Illi-nois might easily lose 25 per cent of Its next year's corn crop, or more than $ 10,000,000, on the basis of the ten-year average annual farm value of the grain. A campaign of warfare against the chinch-bug carryover, which will be largest since 18S7, was mapped out at a recent conference of entomologists entomolo-gists of the central West The program pro-gram covers the coming winter, spring and summer. Full plowing und the burning of hibernating quarters are to be stressed during the fall and winter campaign. The attack upon the bugs next spring will be directed along the lines of planning plan-ning cropping systems so that they will Include as many crops as possible possi-ble upon which the bugs do not feed. Some reliance will be placed upon chinch-bug resistant varieties of corn. At small-grain harvest time many of the bugs can be killed by the use of barriers. Approximately 73 counties, or about j three-fourths of the state, are now Infested In-fested with chinch bugs. The territory I Includes all of the state except a band of counties In the extreme southern part and a narrower strip of counties at the extreme north. The fact that Illinois farmers have bad two bad chinch-bug years does not mean the end of their troubles. Outbreaks Out-breaks of the bugs usually last from two to four years. Some former Illinois Illi-nois outbreaks not as extensive as the present one have persisted for as long as five years. |