How to Manage Pests

Pests in Gardens and Landscapes

Needle cast fungi—Various fungi including Elytroderma, Lophodermella, Lophodermium, Phaeocryptopus, Rhabdocline, and Rhizosphaera spp.

Needle cast fungi can cause chlorosis, black to brown lesions, or spots or streaks to appear on needles and stems. Cankers and brown streaks may occur on wood. Branches may die back. Moist conditions favor the growth of needle cast fungi.

Solutions

Remove nearby plants and weeds, thin the plant canopy, and prune off lower limbs to reduce humidity.

Browning of needles of black lesions
Browning of needles and black lesions

Close up of Elytroderma deformans
Close up of Elytroderma deformans


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

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