An adhesively bonded joint in a boom arm of an agricultural sprayer has a tee-shaped brace member with a top flange and a stem extending from the top flange. A brace-receiving portion of the joint has a slot formed therein that receives the stem of the tee-shaped brace member. The sides of the stem and underside of the top flange are adhesively bonded to facing surfaces of the brace-receiving portion. The slot is formed with a v-shape, with the mouth of the slot being wider than the width of the distal end of the slot, to provide some flexibility in the angular positioning of the tee-shaped bracing member. The joint further includes a locking collar around an end of the tee-shaped brace. Opposite sides of the locking collar engage notches on either side of the slot to lock the stem of the tee-shaped brace member in the slot.
