. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fig. 212. — Larva of the Hop .':-Dout-moth. Original. Tig - The Hop .?nout-moth. Slightly enlarged. Original. ill spring and the second in midsummer. The species hibernates as an adult moth. Spraying with arsenicals will readily control the pest. Sawflies on Wheat Rarely the lan'ae of two or three species of sawfhes are found feed- ing on wheat, eating the leaves, gnawing into the stems, or cutting off the heads. In the species Dolerus collaris .Say and Dolerus awen- •*!-? Say. the larvae are dark gray,
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fig. 212. — Larva of the Hop .':-Dout-moth. Original. Tig - The Hop .?nout-moth. Slightly enlarged. Original. ill spring and the second in midsummer. The species hibernates as an adult moth. Spraying with arsenicals will readily control the pest. Sawflies on Wheat Rarely the lan'ae of two or three species of sawfhes are found feed- ing on wheat, eating the leaves, gnawing into the stems, or cutting off the heads. In the species Dolerus collaris .Say and Dolerus awen- •*!-? Say. the larvae are dark gray, cylindrical, and ha\"e 22 legs. In the species Pachyne- I'lotus (xtensicornis the larva is greenish, with a yellow head, and has 20 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
