Michael,

Id prefer some more information.  Was this earlier this year..?

What were you planting?

Trifluralin  and water rate?  Do i assume your target is ryegrass..?

What are you targeting with what insecticide..?  Tank mixed with the trifluralin,  i guess..?

Do you have closer pics of the ground engaging parts..?  Seems to me you cant have to deal  much with rock, by the look of available jump clearance..?????

I know...terminally curious...