You have asked about pitch pine borer, are you referring to Pinyon Pitch Mass Borer, Dioryctria ponderosae? This borer attacks pinyons, ponderosas and other pines.

I have included 2 links which discuss management of this pest and also attached 2 pages from our CSU, 'Insects and Diseases of Woody Plants in Colorado' book.

https://extension.colostate.edu/topic-areas/yard-garden/pinyon-pine-diseases-and-insects-2-948/

https://planttalk.colostate.edu/topics/insects-diseases/1456-pinon-pine-pitch-mass-borer/

Adult moths are active from late June-August, two thorough preventive bark sprays are recommended per season.  Please see the documents for the recommended chemicals and descriptions.