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UC IPM Home > Home, Gardens, Landscapes, and Turf > Environmental Disorders

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How to Manage Pests

Pests in Gardens and Landscapes

Identification and confirmation—Nutrient and mineral excesses

Symptoms of common nutrient and mineral excesses.

Limb dieback caused by alkaline irrigation water
Alkaline irrigation water on melaleuca
Extensive limb dieback and foliar symptoms of inadequate nutrient uptake

Leaf necrosis die to salty water
Salty irrigation water in clematis
Terminal leaf necrosis 		Glyphosate injury to pear
Glyphosate injury to pear
Small, puckered needlelike leaves

Statewide IPM Program, Agriculture and Natural Resources, University of California
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