Improper Watering Mesquite trees are cold deciduous, which means that at the northern.

Scale infestations often cause leaves to yellow and drop off the tree. Roundheaded or longhorned borers also damage trees, causing foliage to wilt or become discolored and fall off the tree. The. Mesquite trees are deciduous and lose their leaves during winter then produce new ones in late spring. Walk around the tree to check for signs that new leaves are sprouting and that the tree is also producing creamy-white flowers.

The underbark of a living tree will be green and feel slightly damp.

If by late May, your Mesquite tree is still bare, it is likely dying or already dead. Mesquite trees are deciduous, which means their leaves drop off during the autumn and the tree produces new ones in the spring. The tree also produces white blossoms during the spring. If you.