. Bulletin - New York State Museum. Science. REPORT OP THE STATE ENTOMOLOGIST 1901 747 are a little less than n> of an inch in diameter, nearly circular in outline, strongly convex and varying in color from a light golden yellow to a dark brown. They are usually bordered by a line of white excreted matter, and on badly infested twigs the edges of one scale may overlap those of another. The removal of a scale will reveal a distinct hollow in the bark, showing that. Fig. 18 Pseudococcus aceris: a adult females on leaf; 6 young female and males on bark. Natural size. (After Howard, Insect life
. Bulletin - New York State Museum. Science. REPORT OP THE STATE ENTOMOLOGIST 1901 747 are a little less than n> of an inch in diameter, nearly circular in outline, strongly convex and varying in color from a light golden yellow to a dark brown. They are usually bordered by a line of white excreted matter, and on badly infested twigs the edges of one scale may overlap those of another. The removal of a scale will reveal a distinct hollow in the bark, showing that. Fig. 18 Pseudococcus aceris: a adult females on leaf; 6 young female and males on bark. Natural size. (After Howard, Insect life. 1894. 7 : 235; the growing bark has developed around rather than under the insect. This scale insect has been quite injurious in earlier years to English oaks at Geneva N. Y., apparently doing more harm to large trees. The young of this scale insect begin to appear in the latitude of Washington D. C. about the first of May, but Prof. Lowe, in his report for the year 1895, states that at Geneva N. Y. the. 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 New York State Museum; New York State Museum. Albany : New York State Education Dept
Size: 1360px × 1837px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887
