. Insect pests of farm, garden and orchard . Fig. 120.—The com root-aphis (Aphis maidi-radicis Forbes): at left, ovip-arous female; a, hind tibia, showing sensoria; at right, male; a, antenna—much enlarged. (After Forbes.) oval in shape, and will sometimes be found in small piles in the chambers of the ants nests. On warm days the ants bring them up to the warmer surface soil and in cold weather carry them far down into the unfrozen earth. With the appearance of young smartweed and foxtail-grass in April and May the eggs commence to hatch. The ants at once lay bare the roots of these plants an
. Insect pests of farm, garden and orchard . Fig. 120.—The com root-aphis (Aphis maidi-radicis Forbes): at left, ovip-arous female; a, hind tibia, showing sensoria; at right, male; a, antenna—much enlarged. (After Forbes.) oval in shape, and will sometimes be found in small piles in the chambers of the ants nests. On warm days the ants bring them up to the warmer surface soil and in cold weather carry them far down into the unfrozen earth. With the appearance of young smartweed and foxtail-grass in April and May the eggs commence to hatch. The ants at once lay bare the roots of these plants and carry their young wards to them, where large colonies soon Ijecomc established. If the field is not planted in * Lasiiis niger Linn. var. americanus Emery. See Forbes, Bulletin 131,Illinois Agr. Exp. Sta. 166 INSECT PESTS OF FARM, GARDEN AND ORCHARD corn, the lice will feed later upon the roots of pigeon-grass orpurslane. In early May the second generation of lice commence.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
