Citrus greening disease treatment. Plant pathologist (left) and post-doctoral assistant (right) examining a tree that had undergone heat treatment (tent at left) to combat citrus greening. The technique significantly reduces symptoms and improves tree productivity. Also known as huanglongbing (HLB) or yellow dragon disease,it is caused by the Candidatus liberobacter bacteria,transmitted by the Asian citrus psyllid (Diaphorina citri). Symptoms include blotchy mottled leaves,and leaf yellowing. Once infected there is no cure. This research is being carried out by the Agricultural Research Service of the US Department of Agriculture. Photographed in the USA | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / US DEPARTMENT OF AGRICULTURE / MARCO PITINO |
Bildgröße: | 3623 px × 2425 px |
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