. Insect pests of farm, garden and orchard . 4 5 Fig. 121.—^The corn-root aphis (Aphis maidi-radicis Forbes): 1, winglessvivaparous female; a, apex of abdomen; 2, antenna of same; 3, pupa;4, -vidnged vivaparous female; 5, antenna of same. (After Forbes.) to appear, among them being both wingless and winged forms. ,This brood and all of these during the summer are produced byfemales known as agamic females, which give birth to live young INSECTS INJURIOUS TO CORN 1G7 without mating with a male. As soon as corn plants arc availablethe ants again transfer the aphides to their roots, and carry any
. Insect pests of farm, garden and orchard . 4 5 Fig. 121.—^The corn-root aphis (Aphis maidi-radicis Forbes): 1, winglessvivaparous female; a, apex of abdomen; 2, antenna of same; 3, pupa;4, -vidnged vivaparous female; 5, antenna of same. (After Forbes.) to appear, among them being both wingless and winged forms. ,This brood and all of these during the summer are produced byfemales known as agamic females, which give birth to live young INSECTS INJURIOUS TO CORN 1G7 without mating with a male. As soon as corn plants arc availablethe ants again transfer the aphides to their roots, and carry anywinged aphides which may have spread over the field down onto the roots of the corn. All through the summer the antsattend the lice, burrowing around the roots of the corn, andcarrying them from plant to plant, in return for which theaphides give off the sweet honey-dew, when stroked by the antsantennae, upon which the ants feed. During the summer theaphides continue to reproduce with extreme rapidity, an aphidmaturing and giving birth to
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1915
