Report of the commissioner appointed to investigate the prevalence of Trypeta ludens in Mexico. Districts affected by the orange worm. Nature, habits, and extension of the pest. Methods adopted for its control. Danger to be apprehended from its introducti
Book digitized by Google from the library of University of Michigan and uploaded to the Internet Archive by user tpb. At head of title: California State Horticultural Commission. Elwood Cooper, Commissioner Report by John Isaac
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