"Arbres Maladies et fléaux États-Unis Périodiques." . . "United States Department of Agriculture." . . . . "United States. Forest Service. Division of Forest Pest Control." . . "Insectes forestiers États-Unis Périodiques." . . . . . . . . . . . . "Periodicals" . "Periodicals"@en . . . . . . "Forest insect and disease conditions in the United States (Online)" . . . . . . . . . "Forest insect and disease conditions in the United States" . "Forest insect and disease conditions in the United States"@en . "Statistics" . . . . . . . .