Troubleshooting
Pecan 'Pawnee' problems — and how to fix them
Pecan 'Pawnee' (Carya illinoinensis 'Pawnee') is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Aphids and pecan nut casebearer
Yellow and black pecan aphids cause sticky honeydew and sooty mould; casebearer larvae bore into nutlets in early summer. Monitor and manage if infestations build.
Premature drop or poor fill
Drought stress during kernel fill leads to dropped or shrivelled nuts; keep irrigation steady through late summer.
Zinc deficiency (rosette)
Bunched, undersized leaves on stunted shoots indicate zinc shortage; correct with foliar zinc sulphate during spring flushes.
Pollination timing
A protandrous (Type I) cultivar; pair with a protogynous (Type II) pollinator such as 'Elliot' for reliable, overlapping nut set.
Prevent pecan 'pawnee' problems before they start
Most pecan 'pawnee' issues are care-mismatch, not bad luck. Dial in the basics:
Looking for pecan 'pawnee' in general rather than its problems? Read the full pecan 'pawnee' care guide — light, water, soil and feeding.
Pecan 'Pawnee' problems — FAQ
Why is my pecan 'pawnee' aphids and pecan nut casebearer?
Yellow and black pecan aphids cause sticky honeydew and sooty mould; casebearer larvae bore into nutlets in early summer. Monitor and manage if infestations build.
Why is my pecan 'pawnee' premature drop or poor fill?
Drought stress during kernel fill leads to dropped or shrivelled nuts; keep irrigation steady through late summer.
Why is my pecan 'pawnee' zinc deficiency (rosette)?
Bunched, undersized leaves on stunted shoots indicate zinc shortage; correct with foliar zinc sulphate during spring flushes.
Why is my pecan 'pawnee' pollination timing?
A protandrous (Type I) cultivar; pair with a protogynous (Type II) pollinator such as 'Elliot' for reliable, overlapping nut set.