. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 236 FJl'STS of orchard Ayi) SHALL FRUITS usually within a foot of the ground, in June and Jul}". The lan'a requires three years for maturity, feeding first in the sapwood, but later penetrating to the heart of the tree. The food plants include apple, pear, quince, and related wild species. Cutting out with a knife or probing with a soft copper wire are effectual remedies, if carefully done each season. If a â nire probe is used, nick the end so that rough barbs win be made and the borer thus drawn out. M
. Injurious insects : how to recognize and control them . Insect pests; Insect pests. 236 FJl'STS of orchard Ayi) SHALL FRUITS usually within a foot of the ground, in June and Jul}". The lan'a requires three years for maturity, feeding first in the sapwood, but later penetrating to the heart of the tree. The food plants include apple, pear, quince, and related wild species. Cutting out with a knife or probing with a soft copper wire are effectual remedies, if carefully done each season. If a â nire probe is used, nick the end so that rough barbs win be made and the borer thus drawn out. Mechanical protections tied around the trunk for two to three inches below the ground to a height of two or three feet win prevent egg lading. For this pur- pose one may use wood veneer, hea^T paper, or even old news- papers, which usually vrA\ last through one season. Piu-e white lead and linseed oil may be painted on the trunks of apple trees, but ready mixed paint must not be used, since it may contain other oils that are injurious. Protective washes are of some benefit, but need to be renewed occasionally, and will not wholly prevent attack, though thev will lessen the number of Fig. 304. â The R':>UDd-headed Apple-tree borer. Burrows emerging at base of tree. Adult. 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
Size: 1249px × 2000px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1912
