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Home, landscape, and structural pest news from the UC Statewide Integrated Pest Management Program
Suburban Neighborhood
UCANR: Protecting California's natural resources
Drought or Disease?
Published on: September 26, 2022
A drought-tolerant garden bed of California poppies, Ceanothus, and Watsonia. Photo by Tina Saravia, UC ANR.
A drought-tolerant garden bed of California poppies, Ceanothus, and Watsonia. Photo by Tina Saravia, UC ANR.
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Public Value: UCANR: Protecting California's natural resources
Tags: disease (52), drought (10), garden (57), Hartin (2), landscape (62), trees (18), UC IPM (373), water (6)
Focus Area Tags: Yard & Garden
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Landscape Tree Damage: It's Not Always a Pest Issue
Published on: March 14, 2018
Fig 1. Limb dieback and sparse canopy of overwatered olive trees around which turf was planted. Unirrigated trees in the background are healthy. (Photo: L. R. Costello)
Fig 1. Limb dieback and sparse canopy of overwatered olive trees around which turf was planted. Unirrigated trees in the background are healthy. (Photo: L. R. Costello, UCCE)

[From the Spring issue of the UC IPM Retail Nursery & Garden Center News]

Most disorders impacting landscape trees result from abiotic (non-living) disorders rather than attacks from biotic (living) pests like plant pathogens, insects, and vertebrates. Damage caused by abiotic and biotic disorders can appear similar, making diagnosis difficult at times. For example, discolored leaves on a Ficus nitida tree could be due to drought stress, a fungus, or a nutrient toxicity or...

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Focus Areas:
Tags: abiotic (8), damage (19), diseases (11), disorders (1), drought (10), Green Bulletin (8), Hartin (2), heat stress (1), landscape (62), mechanical injury (1), trees (18), UC IPM (373)
Focus Area Tags: Pest Management, Yard & Garden
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