. Cooperative economic insect report. Beneficial insects; Insect pests. N- 10712— Populations of inspects may be esti- mated by visible damoge to host plants. Here the amount of defoliation of trees by gypsy moth lar- vae tells the trained survey entomologist the se- verity of the infestation. N-33051-The weekly issue of the Cooperative Economic Insect Report is the end product of this effort. It contains information important to the de- fense of our food and fiber crops and livestock against destructive N - 33 1 73 — C orrect identification of collected specimens is important. The a
. Cooperative economic insect report. Beneficial insects; Insect pests. N- 10712— Populations of inspects may be esti- mated by visible damoge to host plants. Here the amount of defoliation of trees by gypsy moth lar- vae tells the trained survey entomologist the se- verity of the infestation. N-33051-The weekly issue of the Cooperative Economic Insect Report is the end product of this effort. It contains information important to the de- fense of our food and fiber crops and livestock against destructive N - 33 1 73 — C orrect identification of collected specimens is important. The aid of highly trained State and Federal insect taxonomic specialists Is frequently needed to identify unusual specimens, and the less known life stages of many of our common pests. N — 329 48 — R eports from field entomologists are abstracted and added to this permanent file, which contains information on over 40,000 domestic and foreign insect pest species. These records furnish valuable data on economic importance, distribu- tion, biology, and the general history of a 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
