D. writes
I've used spray treatments but the leaf spot always returns. Is there something to keep it at bay rather than having to spray every few weeks year round.
Ferti-lome Liquid Systemic Fungicide II is not labeled for ligustrum shrubs nor is this labeled to be applied as a soil drench applications to the root zone for systemic mode of action. BioPhos can be applied as soil drench and/or foliage spray for leaf spot. For the foliar spray fungicide treatment, you will need to rotate fungicides every 2-3 applications applying at 14 to 28 day intervals. We would recommend Clearys 3336F or Propiconazole 14.3 for a rotation fungicicde. Please view the full product labels before treating for more information.
Answer last updated on: 03/04/2022