This may be the start of a fungal infection called Diplodia sapinea or tip blight. It can be treated by injecting a systemic pesticide into the trunk. An arborist will need to perform this operation. It can be expensive. You can also try a product called Bayer Tree and Shrub Protect and Feed. Ortho makes a similar product. They also contain a pesticide that can be applied to the soil. The roots take up the pesticide and kill off the fungi.

Thank you, James. I have used the Bayer product but may not have applied enough to these trees which are getting fairly large for this area. I started applying it today to my conifers but ran out. I'll get some more and finish. Thanks again, Devin

The Bayer or Ortho product should be applied annually within the dripline. I usually use a watering can to really soak the area. Be sure to water it in, if possible, if there isn't any rain in the forecast

James, I live in NM and use a drip irrigation system -- so I can water whenever I want by turning it on. I have to justify my water use as beneficial -- these trees are an excellent windbreak for my fruit trees.

Drip irrigation is a good way to the handle irrigation. Seems like you are justified in trying to save the trees. Hope it works out.

Devin, 
the structures you show in your photo are a natural part of the pine's life cycle - they are male flowers (strobiles) that open up to shed pollen, fertilizing female flowers that become "pine cones".   If you tap these male flowers you may see them shed some yellow pollen.  The pollen is very small and light so that winds can move it easily.
There is no need to apply fungicide to your Austrian pines.

Thank you very much. That possibility never occurred to me. Devin