Hundreds of seed stocks and bushels of pollen are freed for all of us allergy sufferers. Seed production will be even more prevalent if you stressed your turf through the summer. I planted hybrid Bermuda grass to get away from the allergy problems of common Bermuda grass and now it's in bloom. This is a common concern from new hybrid Bermuda grass owners when they see the seed stalks. But rest assured, these nonfertile blooms do not shed viable pollen and will not cause allergies.
Aphids cause sticky pecan leaves.
As far as the plant is concerned, aphids are not harmful as the leaves will drop soon anyway. The new leaves were small, sparse, yellow and browning at their tips. Root binding is the most likely cause. The restricted root development begins back in the propagation stages of the plant. As time passes, binding roots restrict the flow of sap to the foliage and root rot sets in.