OCR Text |
Show New Odor Baits Fool Moths of AFple Worm i The codling moth the adult of the apple worm is attracted by certain odors, which point3 to the possibility of another control measure. mea-sure. A synthetic tait that would trap, the-moths as readily as chemically chem-ically treated, bands trap the worms would' give apple growers, a valuable valu-able supplement to the sprays now used, to .protect fruit, thus cutting co8tso.n graying and washing off the residue.. Farmenting sugar or. molasses solutions ..attract enough. moths" to trap in orchards to determine sprttjaDg dates, but not enough to keep fryit. trees from worms. .A earch .for ways to make these baits, more alluring to more moths, now under way. in the United States Stat-es Department of Agriculture, has tkroujrjht to light several promising substances. For example, the addi. .tio no'f citral to molasses bait increases' in-creases' 'the moth catch. The addition addi-tion orpine-tar oil .still further increases' in-creases' it. "' A mixture of. nicotine ulf ate," Valeric acid, and pinctar -oil, or one of pine-tar oil and vaU ric acid, added to a molasses bait, is equally, effective, as js a nicotine sulfate and pine tar oil combination - -with-molasses. More male than fe-znale fe-znale moth3, the entomologists re- -irt, respond to the lure of the "'r tcre.-;! The remalo moth does not feed mn plant tissue, but she usually 7lay.her eggs close to the food .teet suited to the larve. Tho young the worms are the destructive members of tho family. Mother anoths, entomologists believe, find their way to food plants largely, if not entirely by Bense of smelL Because Be-cause the odors of some materials apparently very appealing to codling cod-ling moths are not perceptible to the human nose, moth reactions to the aroma of chemicals are difficult to interpret. |