Air Pollution

Pest/Disease: Air Pollution

Pest Type: Non-infectious plant disease

Major Identifying Features: High traffic areas, air polluted areas, difficult to diagnose because symptoms are very similar to other factors that can stress plants, bleaching, mottling, discolored patches, flecks, stippling

Life Cycle: N/A

Pest/Disease Rating: N/A

Management Rating: Difficult

Host/Season/Outbreak Information: Mostly caused by ozone which are formed in the lower atmosphere through complex reactions among volatile organic compounds and sunlight, vehicle emissions and fuel burning are major sources, summer and early fall in Los Angeles and Central Valley

Damage Information: Reduces crop yields, stunt plant growth, discolor foliage

Management Options: Cultural control by proper plant care and environmental management, planting low VOC emitter trees, planting pollution tolerant plants, reducing chemical applications high in VOC’s, mechanical control by alternate transportations, vehicle maintenance, resource and material conservation, growing more plants that absorb pollutants

Sources:

Dreistadt, Steve H., and Jack Kelly. Clark. Pests of Landscape Trees and Shrubs: An Integrated Pest Management Guide. Oakland, CA: U of California, Division of Agriculture and Natural Resources, 1994. Print.

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