San Jose Scale [Aspidiotus Perniciosus Comstock] and Its Control
Altus Lacy Quaintance
Jan 1919 · U.S. Government Printing Office
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31
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"Besides describing this scale insect and its life history and habits, this bulletin shows how it is spread from orchard to orchard and from region to region, lists its numerous food plants, discusses the parasitic and other insect enemies which help in controlling it, and describes fully the preparation and application of the sprays which are used most successfully in the warfare against it."--Page 2
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