Some of these other guys will know better than me but if I recall correctly, triclopyr is most commonly used with an oil based carrier. I think it can be foliar applied but the mix rate is real high, like 10%, which makes it not very economical. Conversely, imazapyr suggests mixing a little gly for a faster kill on some vegetation. You can mix 1% gly and 1% imazapyr and get a thorough kill.