. Cooperative economic insect report. Insect pests Control United States Periodicals. - 63 - PEAR SAWFLY (Hoplocampa brevis (Klug)) Economic Importance: This tenthredinid is an important pest of pears in many areas of Europe"! Although infestations are not consistent from year to year, it is generally considered to be a very harmful species. Populations will remain unnoted for awhile, then sud- denly appear in very destructive numbers. In some years as high as 80 percent of the fruits will be attacked but infestations may be highly localized in fruit growing areas. During 1938-39, 60 to 8
. Cooperative economic insect report. Insect pests Control United States Periodicals. - 63 - PEAR SAWFLY (Hoplocampa brevis (Klug)) Economic Importance: This tenthredinid is an important pest of pears in many areas of Europe"! Although infestations are not consistent from year to year, it is generally considered to be a very harmful species. Populations will remain unnoted for awhile, then sud- denly appear in very destructive numbers. In some years as high as 80 percent of the fruits will be attacked but infestations may be highly localized in fruit growing areas. During 1938-39, 60 to 80 percent of the pears were attacked in the Crimea of USSR. Distribution: The species occurs in European USSR, Romania, Greece. Italy, Netherlands, England, France, Yugoslavia, Denmark, Germany, Sweden, Spain, Belgium. Switzerland and Austria in Europe. In Asia it is found in Kazakhstan and Turkestan in the USSR; Turkey and Syria. Specimens collected in 1953 in New York were confirmed in 1965. H. brevis also was confirmed in Canada in 1965. Hosts: Pear is the major host but plum and apple also are 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. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Branch; United States. Plant Pest Control Division; United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs. Washington, D. C. : U. S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine
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