Pac O is the new name for OHP plant growth regulator

The PGR, formerly known as Paczol, contains the same active ingredients, size and recommendations.


OHP is changing the name of its paclobutrazol-based plant growth regulator (PGR) to Pac O, effective immediately.

Formerly known as Paczol, Pac O contains the same active ingredient (AI), same AI concentration (0.4%), same gallon size, and identical use-rate range recommendations. 

Users should be aware that Pac O has a new EPA registration number.

OHP will maintain Paczol state registrations in the near term until supplies are exhausted in the field. 

For more information, visit www.ohp.com.