If you have a strange happening in your grove and it is a task for Plant Pathology, please contact directly; Len Tesoriero is a plant pathologist who researches diseases of horticultural crops. He has a strong interest in protecting Australian horticulture’s biosecurity through accurate diagnostic support and surveillance for exotic disease threats. CONTACT DETAILS: Dr…
Hi Amanda, We were wondering if you can tell us from the attached images if the markings on the limbs of these Barnea olive trees are a problem ??
Please help, we are based in the Hunter Valley and it appears that where moisture runs through the tree is where the problem is (see pictures). It doesn’t look like sooty mould but we had scale and olive lace bug issues. The trees are in urgent need of care. What is the black on the trunks and what do I do? P NSW