Caterpillars or their damage (chewed leaves). Spray with Cyonara, organically with Thuricide, Dipel Dust, or Spinosad.
Read: Oak Tree Caterpillars
Powdery Mildew on Crape Myrtles and Roses
Use Fertilome Broad Spectrum or Fertilome Systemic Fungicide, organically with Serenade, or Neem Oil.
Fleas and Ticks
Treat lawns with Spectracide
Triazicide, Cyonara, organically with Spinosad.
Use Mosquito Beater Liquid Quick Kill or Mosquito Beater granules to repel.