Invasive Species Resources
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Portland State University (Oregon).
Benton Soil and Water Conservation District (Oregon).
Oregon Public Broadcasting.
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.