Full TGIF Record # 129287
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Web URL(s):https://archive.lib.msu.edu/tic/monos/tusur1936mar.pdf#page=13
    Last checked: 06/01/2022
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Publication Type:
Author(s):Jacobs, H. L.
Author Affiliation:Arboriculturalist, The Davey Tree Expert Company, Kent, Ohio
Title:The control of scale insects
Source:The Turf Survey. Vol. 1, No. 2, March 1936, p. 13, 22, 26.
# of Pages:3
Publishing Information:Cleveland, OH: G. A. Farley
Keywords:TIC Keywords: Insect control; Coccidea; Trees; Insect pests; Calcium polysulfide; Invert emulsions; Spraying equipment
Abstract/Contents:Profiles scale insect infestation, stating that "scale is very common and extremely injurious" to trees and shrubbery. Details infestation, stating that "after the newly-born insects hatch out, each one soon picks out a place on the bark, inserts a tube-like beak down into the sap-conducting tissues, and from then on, busily feeds on the plant juices. In just a little time, it is able to form over its tender body a scale-like covering which seals the insect to the bark. Here it stays, and here it feeds." Describes symptoms of scale insect infestation, stating that "the appearance of the roof-like scale that protects the insect varies in size and appearance in accordance with the particular kind of scale insect. For instance, the covering of one looks like a tiny oyster hsell; hence the insect is known as oyster shell scale." Explains that "no single scale insect is going to do any appreciable amount of harm, but when the insects are matted on the branches by the hundreds, thousands, or even millions, then the combined drain that they place on the sap supply is greater than the tree or shrub can withstand. The branches are robbed of their sap-food, growth is stunted, the health of the plant is impaired, and the death of individual important branches soon follows." Discusses possible methods of treating and preventing scale insect infestation, including hiring a tree surgeon and spraying. Highlights winter spraying, stating that "the spraying solution that destroys the scale is injurious to foliage. So, control measures are given during the dormant season while the trees are not in leaf." Suggests that superintendents should "have the trees inspected if [he suspects] the presence of scale insects. Have them sprayed if they need it. Scale-infested trees are likely to slowly die. Spraying to control scale insects will prserve the health of trees and give them an opportunity to provide the fine beauty and the rich shade that mean so much to attractive surroundings."
Note:Pictures, b/w
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jacobs, H. L. 1936. The control of scale insects. Turf Surv. 1(2):p. 13, 22, 26.
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    Last checked: 06/01/2022
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    Notes: Item is within a single large file
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