I have hydrangea shrubs with black dots on the leaves. Why

Sha29840272
by Sha29840272
  3 answers
  • Janet Pizaro Janet Pizaro on Oct 03, 2017

    black spots are a fungus from to much ,moisture.Use a systemic fungicide

    • Sha29840272 Sha29840272 on Oct 03, 2017

      I have been watering them maybe once a week or every other week. We are in a drought but it is suppose to rain some each day this week but I am not doing to hold my breath. Notice those black spots on tree leaves too, planted in 1955 (trees)

  • Janet Pizaro Janet Pizaro on Oct 03, 2017

    it sounds like improper watering ,rough will also cause fungus.If you do not water on a consistent basis that is what happens.those that wait for rain will succumb to fungus.water when it is appropriate timing

  • Sha29840272 Sha29840272 on Oct 03, 2017

    Thank you, Janet