. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 145 Hop Plant-louse {Phorodon Iiionnli Schrank).—Migrates from plums to liojj in the third generation; yellowish-green, with a prominent tubercle on head at base of each antenna, and another smaller tubercle on the base of each antenna. Apple Woolly Aphis {Schizoneura (= Eriosoma), lanigera Haus, americana Riley in part).—(Consult Bull. 256, Maine Agr. Expt. Stn.,. Pleas
. Class book of economic entomology, with special reference to the economic insects of the northern United States and Canada. Beneficial insects; Insect pests; Insects; Insects. CLASSIFICATION AND DESCRIPTION OF COMMON INSECTS 145 Hop Plant-louse {Phorodon Iiionnli Schrank).—Migrates from plums to liojj in the third generation; yellowish-green, with a prominent tubercle on head at base of each antenna, and another smaller tubercle on the base of each antenna. Apple Woolly Aphis {Schizoneura (= Eriosoma), lanigera Haus, americana Riley in part).—(Consult Bull. 256, Maine Agr. Expt. Stn.,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Lochhead, William, 1864-1927. Philadelphia : Blakiston
Size: 1686px × 1482px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsects, bookyear1919
