COURTESY DLNR The landscape ohia trees were infected with Ceratocystis huliohia, the less virulent strain of the fungal pathogen, according to the Hawaii Department of Land and Natural Resources. 1 /2 ...

Oak wilt is one of the deadliest tree diseases in the United States, killing millions of trees across 76 Texas counties.

MISC also collected samples from nearby ohia trees for follow up monitoring. Rapid ohia death, which is caused by two fungal species — C. huliohia and C. lukuohia — were first found killing ...

Texans can help prevent the spread of oak wilt by avoiding pruning or wounding oak trees from February through June.