He gained a good reputation as an amateur entomologist after making a collection of Tasmanian beetles, and this led to his employment by the Tasmanian government to investigate the incidence of San Jose scale in Tasmanian orchards.
By 1890 it had spread over the greater part of California, but was not recognized east of the Rocky Mountains until August, 1893, when it was found by Howard on a pear received from Charlottesville, Virginia.
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It was probably introduced at San Jose about 1870 on trees imported from China by James Lick.
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