Field diagnosis through visual tree assessment is based on observable symptoms and signs of BRR. There are two steps. Step 1: Identify abnormal crown symptoms (e.g. sparse foliage density, abnormal […]
There are currently two main levels of diagnostic methods available for determination of BRR disease in trees, namely field diagnosis through visual tree assessment and laboratory diagnosis through fungal isolation […]
According to literatures and expert opinion, there is yet to be an effective cure for BRR disease.
The disease is prevalent in tropical and subtropical regions in different part of the world and has been found in Asian countries & regions such as Japan, Mainland China, Hong […]
The disease mainly spreads through root-to-root contact or through infested wood debris in soil, though there may be the possibility of spreading of the disease through the dissemination of basidiospores […]
It has been reported that over 200 plant species in 59 families are hosts to Phellinus noxius. In Hong Kong, we know that trees species such as Aleurities moluccana, Bombax […]
Phellinus noxius is a fungus that causes BRR disease on trees. Belonging to the genus Phellinus, P. noxius is placed under the family of Hymenochaetaceae within the Phylum Basidiomycota. Most […]
Regardless of whether the lease contains any clause requiring the owner of a private lot to properly maintain the trees within his/her lot, it is the responsibility of the owner […]
For the sake of public safety, tree pruning or removal can first be carried out by the owner of a private lot if the tree within the lot is considered […]
Where the lease of a private lot contains a tree preservation clause, if the lot owner carries out tree removal or pruning within the lot without DLO’s written consent, appropriate […]