Economic entomology for the farmer Economic entomology for the economicentomolo00smit_0 Year: 1896 THE INSECT WORLD. 20I Lachnosterna. They fly at night, are readily attracted to light, and often come into rooms, clumsily and noisily bumping against all sorts of obstructions until they eventually strike something which sends them heavily to the floor. We have many species more or less resembUng each other, and all chestnut brown or yellowish in color. Some years they are very abundant and cause injury by eating the foliage of trees or shrubs. I have found them eating pieces out of th
Economic entomology for the farmer Economic entomology for the economicentomolo00smit_0 Year: 1896 THE INSECT WORLD. 20I Lachnosterna. They fly at night, are readily attracted to light, and often come into rooms, clumsily and noisily bumping against all sorts of obstructions until they eventually strike something which sends them heavily to the floor. We have many species more or less resembUng each other, and all chestnut brown or yellowish in color. Some years they are very abundant and cause injury by eating the foliage of trees or shrubs. I have found them eating pieces out of the stalks of recently set apples Fig. 190. May-beetle.—i, pupa in earthen cell ; 2, larva or white grub ; 3, 4, beetle, from side and above. and pears, causing the fruit to wilt and drop. The larvae live on grass and other roots, and are typical '' white-grubs.'' Culti- vated crops are frequently attacked and much injury is some- times caused. The larval period has not yet been satisfactorily determined for all species, and varies, as does also the time for changing to the adult condition. Frequent rotation and fall ploughing are to be recommended, and where grass lands are infested, heavy top-dressings of kainit and nitrate of soda have proved beneficial. Wherever ploughing is done in infested fields, chickens should be encouraged to follow in the furrow to pick up the grubs. Where young trees are to be protected from the beetles, jarring them into an umbrella two or three times early in the evening
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