Diagnosing and Treating Indian Hawthorn Decline in Texas Landscapes

Checking Irrigation Effectiveness

Even with an irrigation system, some zones may not deliver enough water to shrub roots. Place a rain gauge in the bed; aim for 1 inch per week.

Identifying Fire Blight Symptoms

Brown, scorched-looking leaves and dieback are classic signs of this bacterial disease. It spreads via splashing water and pruning tools.

Pruning and Sanitation Practices

Cut out dead branches, dipping pruners in 10% bleach between cuts. Do not fertilize—excess nitrogen worsens fire blight.

Cultural Controls to Prevent Spread

Avoid overhead watering on hawthorns. Ensure good air circulation. Consult a certified arborist or extension office for confirmation.