Comparison of Diseased and Healthy Plants
  • BBTD is diagnosed by identifying symptoms of diseased plants or by submitting a banana leaf for virus testing
  • It can help in disease diagnosis to compare suspect plants with known healthy plants

Plant comparison: leaves bunched up

Plant comparison: leaves bunched up
Left: plant with bunchy top disease symptoms (leaves are erect, bunchy and yellow).

Right: healthy plant of similar age, without bunchy top disease symptoms.

Petiole comparison: "Morse code" streaking

Healthy petiole : no streaking or mottling along veins


Diseased petiole : "Morse code" streaking, green mottling on veins

Leaf comparison: Green "J-hooks" Near Leaf Midrib

Healthy Leaf - no Green "J-hooks"
Diseased Leaf - yes, Green "J-hooks"

Photographs are courtesy of the University of Hawaii and the Hawaii Department of Agriculture


Maintained by Scot Nelson: snelson@hawaii.edu
Last Revised on September 12, 2006