A friend of mine had his 3 Scots Pines treated by a local Tree Management Company for 4 years with an insect control agent.

He had them removed last week as there was no stopping this parasite. In 5 years Scots, Pinus sylvestris, and Austrian, Pinus nigra pines will be history.

In most instances all builders of new homes in the Kansas City area have used these pines exclusively as part of the landscape design for the last 50 years. The impact will be huge.

Dave

There are some experimental treatments out there - especially in Korea where they actively treat trees. However, this is not sustainable nor likely to be widely accepted here. I think it is best to plant native species that have resistance to the nematode - use P. rigida, P. strobus, P. ponderosa, P. virginiana, P. echinata.. etc. P. rigida x taeda may be a good one for your region too. It even did well for me in Minnesota when I lived there....

Yep, no cure here, didn't know about Korea. Also didn't know the fast impact or rate of progress of this nematode. So sad to hear about. This year is the first year here in Illinois that I've been seeing "purple boxes" being placed on Ash trees.... looks to be a horrible and near soon, sitchi. I know they're injecting ash trees, however what I do not know is how this treatment is working and, if it has long-term - results.

Dax

At this point I have 2 -contortas, 1- densiflora, 1- flexilis, 2-leucodermis, 6-mugos, 3-parvifloras, 5-strobus, 3-thunbergii, and 1-schwerini in my inventory....none with effect.

I'm really going to have a hard time when it finally hits me.

Does anyone know for sure the most succeptable varietals?

mark