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Chionaspis pinifoliae, the pine needle scale insect, is a common species of scale insect found on pine, spruce and other conifers across Canada and throughout the United States. [1] The species is particularly persistent on planted spruce in the Prairie Provinces in both rural and urban settings. In heavy populations, the needles may appear to ...
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The most infected needles are prematurely shed by December. Because the infected needles are within the interior of the tree, the newer needles on the outer surface of the pines are flushed green and resistant to the disease. However, the premature shedding of needles in the interior can extend outwards leading to a loss in overall growth.
Toumeyella parvicornis is a soft scale insect in the family Coccidae with a wide host range. It is commonly known as pine tortoise scale because of the characteristic appearance of the mature females, which look like tiny tortoises 4–5mm long. [2]
Download as PDF; Printable version; In other projects ... move to sidebar hide. Five-needle pine is a common name for several plants and may refer to: Pinus ...
Carr, Robert E. and Hayes, R. M., Wide Screen Movies. A History and Filmography of Wide Gauge Filmmaking. Mc Farland & Company, 1988. Hart, Martin. American Widescreen Museum, 1996–2008. Retrieved on 2008-05-16. Herbert, Stephen and Luke McKernan, eds. Who's Who of Victorian Cinema, 1996–2006. Retrieved on 2006-12-01.
# set terminal svg enhanced size 875 1250 fname "Times" fsize 25 set terminal postscript enhanced portrait dashed lw 1 "Helvetica" 14 set output "bode.ps" # ugly part of something G(w,n) = 0 * w * n + 100000 # 1 / (sqrt(1 + w**(2*n))) dB(x) = 0 + x + 100000 # 20 * log10(abs(x)) P(w) = w * 0 + 200 # -atan(w)*180/pi # Gridlines set grid # Set x ...