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Plum Pox Virus/Purple Loosestrife
Plum Pox Virus (sharka)
Virus that affects stone fruits.
- APHIS Plum Pox Page
- Plum Pox Brochure (PDF) - Great 2-page brochure with images, from APHIS
- Penn State Plum Pox Education - Fact sheets, news releases, quarantine updates
- PDA Plum Pox Information - Background, symptoms, spread, control
Purple Loosestrife
Landscape plant that overruns wetland areas.
- Purple loosestrife page - Links & resources, from PA IPM
- PDA Purple Loosestrife Information - Identification, images, how it spreads, why it's a threat, control methods
- PA Noxious Weed List - Lists plants that are illegal to cultivate or sell in PA