Invasive Species Resources
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Benton Soil and Water Conservation District (Oregon).
California Department of Food and Agriculture. Citrus Pest and Disease Prevention Program.
The Asian citrus psyllid and citrus greening (Huanglongbing) could be a death sentence for California citrus trees - but with support from California residents, we can save the citrus trees that we all know and love.
Pennsylvania Department of Conservation and Natural Resources.