Solving Aster Problems
Symptoms	Probable Causes
Occasional Insect Pests Leaves Curled; Discolored	Aphids
Holes in Leaves and Flowers	Japanese Beetles
Foliage Turns Pale or Mottled	Lace Bug
Stems Go Limp; Leaves Wilt	Stalk Borer
Leaves Covered With White Powder	Powdery Mildew, a fungal disease
White Coating on Leaf Surfaces	Downy Mildew, a fungal disease
Leaves Spotted; Turn Brown; Drop Prematurely	Leaf Spot, a fungal disease
Orange Powdery Spots on Leaves	Rust, a fungal disease