WSU Extension


Common Cultural Problems
Air pollution 
Construction damage 
Desiccating wind 
Drought damage 
Fertilizer burn 
Frost injury 
Hail damage 
Lime-induced chlorosis 
Marginal leaf necrosis 
Morphological changes 
Mosses and lichens 
Needle loss 
Needle tip necrosis 
Nutrient deficiency 
Overwatering or poor drainage 
Plant girdling and circling roots 
Poor pollination 
Salt damage 
Transplant shock 
Winter desiccation 
Winter injury 

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Caption: Drought damage on conifer
Photo by: R.S. Byther
Common Cultural : Drought damage
(revision date: 4/30/2013)

Marginal and tip leaf necrosis may result when insufficient moisture is available to broadleaf plants. The terminal growth and sometimes side branches on conifers may die because of excessive water stress. Similar symptoms can occur from winter injury when soil freezes, and water is unavailable.
Management Options

Non-Chemical Management
  • Properly irrigate plants during dry summer periods. For best results, water deeply and infrequently rather than shallowly and often.
Select non-chemical management options as your first choice!

Chemical Management

None recommended


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Caption: Drought damage on conifer
Photo by: R.S. Byther
Caption: Drought damage on hydrangea
Photo by: R. Maleike