Citrus Greening 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 Identifying Characteristics

Citrus Greening Relationship between Bacteria and Psyllid Tree infected with huanglongbing (bacteria) Carries huanglongbing to the next feeding site Psyllid feeds on infected tree 2

Citrus Greening Common Host Trees Mandarin Meyer Lemon Grapefruit Lemon Lime Orange Grapefruit Pomelo Mandarin Tangerine Meyer Lemon 3

Citrus Greening Map – Range of Citrus Greening American Elm 4

5 1.Leaves develop a yellow blotchy appearance 2.Sparsely leaved branches 3.Infected citrus trees produce fruits that are green and bitter 4.White waxy feeding residue from adult psyllids may be present Citrus Greening What to Look For 1 2

6 1.Leaves develop a yellow blotchy appearance 2.Sparsely leaved branches 3.Infected citrus trees produce fruits that are green and bitter 4.White waxy feeding residue from adult psyllids may be present Citrus Greening What to Look For 2 1

7 1.Leaves develop a yellow blotchy appearance 2.Sparsely leaved branches 3.Infected citrus trees produce fruits that are green and bitter 4.White waxy feeding residue from adult psyllids may be present Citrus Greening What to Look For 4 3

8 1.Leaves develop a yellow blotchy appearance 2.Sparsely leaved branches 3.Infected citrus trees produce fruits that are green and bitter 4.White waxy feeding residue from psyllid nymphs may be present Citrus Greening What to Look For 4 3

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

10 Citrus Greening Additional Resources USDA PestAlert.pdf Hungry Pests EDDMaps: Reporting App for Smartphones