. Injurious insects : how to recognize and control them . Insect pests; Insect pests. PLAXT-LICE IXJURIXG THE FOLIAGE. The Rosy Apple Apliis (--JLp/ii'.s jor/)/) hatches from eggs that have remained on the apple throughout winter, but with the tliird generation migrates to other food plants. This is a slightly larger species. The wing- less female is one tenth of an inch long, bluish in color, and has yellow honey tubes tipped with black. The winged female has a black thorax and a red ab- domen. The European Grain Aphis {Siphocoryrie arena) is found in summer on small grains, luit for the most
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. PLAXT-LICE IXJURIXG THE FOLIAGE. The Rosy Apple Apliis (--JLp/ii'.s jor/)/) hatches from eggs that have remained on the apple throughout winter, but with the tliird generation migrates to other food plants. This is a slightly larger species. The wing- less female is one tenth of an inch long, bluish in color, and has yellow honey tubes tipped with black. The winged female has a black thorax and a red ab- domen. The European Grain Aphis {Siphocoryrie arena) is found in summer on small grains, luit for the most part migrates in the Fig. 4S7. — Adults of the Apple Aphis clus fall to apple, pear, or re- lated trees, where its win- ter eggs are laid. It develops in the spring like the preceding species, lea^ing the fruit trees with the coming of the third generation. On apple trees it is commonly first observed clustered on the ex- panchng buds. The Clover Apliis {Aphi-i bakcri) rears its summer gen- erations on clover or alfalfa. These lice are hght yellow or pink. Usually they lea^"e the clover in the faU. passing through a \\-inter egg stage ,,-,,,,. ,. .. on ariple or pear. The fo-st 4J^^. — ^^ ork ol Aphis ou young truit. "^"^ _' Original. generation from these eggs tered along ^"eins of leaf. Enlarged. Grig 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 O'Kane, Walter Collins, b. 1877. New York : The Macmillan Company
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
