Looks mildew to me, but not sure?
And can mildew be on pines?
See my japanse white pine.
Hi Klaas
these are mealybugs!
regards
Bernd
99.999% not mildew. (I have never personally seen mildew on pines). I concur with @satsuki61 that this is an insect in the order Hemiptera. Cross check to identify against Pine bark adelgid Hemiptera adelgidae
I think you right, even I cannot find the bug itself yet.
Let me treat it asap
Non può essere muffa ma sicuramente è un parassita,cerca di eliminarlo al più presto prima che crei ulteriori problemi.