Felling disease-affected trees is a matter of priority, according to Environment, Food and Agriculture Minister Geoffrey Boot.
Rushen MHK Juan Watterson asked Mr Boot MHK what impact two types of tree diseases have had on woodlands and plantations.
Mr Boot says the impact of Chalara Ash Dieback is not yet known as the affects can take years to appear - but the damage caused by Sudden Oak Death has already been significant.
He says it is impossible to completely eradicate the diseases, but the department is replanting areas it's had to cut down.
Free period products law receives Royal Assent
How are Islanders supported while waiting for benefits?
Specialist vans to survey Isle of Man roads next month
Great Laxey Wheel upgrades to see old ticket office removed
MHK to question plans for improving Island's mental health services
Colby Glen path shut until next April
If you Trick Or Treat, don't trouble the street!
German newspaper says hello from the Island - and Queen Victoria