Identifying Characteristics

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Presentation transcript:

Identifying Characteristics Citrus Greening Identifying Characteristics Huanglongbing, a bacteria transmitted by Asian Citrus Psyllid, results in greenish, miscolored, mishapen, and bitter fruits on infected trees The Asian Citrus Psyllid is close to the size of a gnat Adults, eggs, larvae or pupae may be on leaves or stems

Citrus Greening Relationship between Bacteria and Psyllid Psyllid feeds on infected tree Tree infected with huanglongbing (bacteria) Carries huanglongbing to the next feeding site

Citrus Greening Common Host Trees Lemon Mandarin Lime Tangerine Orange Meyer Lemon Grapefruit Pomelo Mandarin Grapefruit Meyer Lemon

Citrus Greening Map – Range of Citrus Greening American Elm

Citrus Greening What to Look For 1 Leaves develop a yellow blotchy appearance Sparsely leaved branches Infected citrus trees produce fruits that are green and bitter White waxy feeding residue from adult psyllids may be present 2

Citrus Greening What to Look For 1 Leaves develop a yellow blotchy appearance Sparsely leaved branches Infected citrus trees produce fruits that are green and bitter White waxy feeding residue from adult psyllids may be present 2

Citrus Greening What to Look For 3 Leaves develop a yellow blotchy appearance Sparsely leaved branches Infected citrus trees produce fruits that are green and bitter White waxy feeding residue from adult psyllids may be present 4

Citrus Greening What to Look For 3 Leaves develop a yellow blotchy appearance Sparsely leaved branches Infected citrus trees produce fruits that are green and bitter White waxy feeding residue from psyllid nymphs may be present 4

Citrus Greening What to Look For (cont.) YEAR-ROUND: Leaves are blotchy, defoliation, green or bitter fruits, misshapen fruits, white waxy residue

Citrus Greening Additional Resources USDA http://www.aphis.usda.gov/publications/plant_health/2011/CG-PestAlert.pdf Hungry Pests http://www.hungrypests.com/the-threat/citrus-greening.php EDDMaps: Reporting App for Smartphones http://www.eddmaps.org/