. Cooperative economic insect report. Beneficial insects; Insect pests. - 967 DISTRIBUTION OF TWO SILVER FIR BEETLES (Pseudohylesinus granulatus and P. grandis) ON THE PACIFIC SLOPE OF THE UNITED STATES AND CANADA. Pseudohylesinus qrondis Pseudohylesinus gronulotus From Forest Pest Leaflet 60 Forest Service, USDA September 1961. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Animal and Plant Health Service.
. Cooperative economic insect report. Beneficial insects; Insect pests. - 967 DISTRIBUTION OF TWO SILVER FIR BEETLES (Pseudohylesinus granulatus and P. grandis) ON THE PACIFIC SLOPE OF THE UNITED STATES AND CANADA. Pseudohylesinus qrondis Pseudohylesinus gronulotus From Forest Pest Leaflet 60 Forest Service, USDA September 1961. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Animal and Plant Health Service. Plant Protection and Quarantine Programs; United States. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Division. Hyattsville, MD. [etc. ] Plant Protection and Quarantine Programs Animal and Plant Health Service
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Keywords: ., bookcentury1900, booksubjectbeneficialinsects, booksubjectinsect
