PDA Regulatory Horticulture - Semi-annual publication from PA Department of Ag. All links below are PDF files.
USDA's Role in Combating Pests of American Agriculture - Vol.28, 2002
Plant Pest Regulation: Important Components of Your Pest Control Strategy - Vol.28, 2002
New Treatment for Foliar Nematode - Vol.28, 2002
Bacterial Blight of Geranium - Vol.28, 2002
Clover Mite, Bryobia praetiosa (Acarina: Tetranychidae) - Vol.28, 2002
Brown Marmorated Stink Bug, Halyomorpha halys (Stal) - Vol.28, 2002
Additions to the PA Noxious Weed Control List - Vol.26, 2000
Invasive Species - Vol.25, 1999
Beauty with a Bite, Apiaceae - Vol.25, 1999
Pests We Can Live With? - Vol.25, 1999
Potexviruses - Vol.25, 1999
Multiflora Rose, Rose Rosette Disease and Phyllocoptes fructiphilus - Vol.25, 1999
Japanese Beetle Quarantines - Where Are We Now? - Vol.25, 1999
Is Winter Mortality Wishful Thinking? - Vol.25, 1999
Identifying Plant and Pest Problems Using Computer and Internet Resources - Vol.25, 1999
Which Agency Can Help? - Vol.25, 1999
Diseases Caused by Phytoplasmas - Vol.25, 1999
Beneficial Insects Video Available - Vol.24, 1998
PA Initiative to Monitor Commercial Fertilizer - Vol.24, 1998
Genetic Engineering - Out of the Laboratory and Into the Nursery - Vol.24, 1998
Wax Scales, Ceroplastes spp. - Vol.24, 1998