. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fig. -The Pea Aphis, .\diilts at work on A-ine. Original. a eultivator between the rows. If the ground is wet, the hee may he brushed into a long, shallow pan. A httle water should be poured into the pan and covered with a tilm of coal oil. The Bean Aphis {Aphis nimicis Linn.) The tender shoots of beans sometimes are covered with thickly clustered plant hee. The same species is found eonuiionly on pig- weed, dock, and other weeds. The aphis is one tenth of an inch long, black, often with a few whitish dots on
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. Fig. -The Pea Aphis, .\diilts at work on A-ine. Original. a eultivator between the rows. If the ground is wet, the hee may he brushed into a long, shallow pan. A httle water should be poured into the pan and covered with a tilm of coal oil. The Bean Aphis {Aphis nimicis Linn.) The tender shoots of beans sometimes are covered with thickly clustered plant hee. The same species is found eonuiionly on pig- weed, dock, and other weeds. The aphis is one tenth of an inch long, black, often with a few whitish dots on each side ; the an- tenna? are whitish in theu- central seg- ments. Winter is passed in an egg stage on the twigs of wahoo or of snowball. The lice fu-st migrate to weeds and then to beans. In late to the slu'ubs Fig. ::51. —ThePeaAphis. Adult enlarged and nat- ural size. Original. siuimier, the\- rettirn. 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
