Principal^® Forte

Principal Forte is a post-emergence herbicide that controls a wide range of both grass and broad-leaved weeds.

Principal Forte will control fat-hen, common amaranth, field pennycress, barnyard grass, green bristle grass, hairy fingergrass and couch grass*, and many other weeds. For more information, please see below.

*Suppression of common couch top growth, reduction of growth in the following year has not been established. 

Benefits

• Few following crop restrictions
• Rapid contact action
• Rainfast in 4 hours

Application

• 1 application per calendar year
• Must be applied with an adjuvant that is classified as 95.0 % w/w oil (rapeseed triglycerides)
• Apply from 2 to 9 leaves unfolded (BBCH 12-19) between 1^st May and 31^st July
• Apply to small, actively growing weeds
• Maximum individual dose: 480 g/ha + adjuvant
• Maximum total dose: 480 g/ha + adjuvant

For more information download our FREE Forage App. Available to download from the App Store or Google play now.