ForesTree - A Guide to Tree Health

Pest and Disease Information

California Laurel
  • Umbellularia californica - Resistant to Verticillium. Susceptible to Beetle Borers, Leaf Miner, Cottony Cushion Scale and Beetle Leaves, Sudden Oak Death, Anthracnose, White Mottled Rot and Sooty Mold. Additional and expanded information listed below.

  • For further tree information:
       SelecTree (1446) | Silvics of North America
5 Records Found
Disease or Pest NameDescription of Disease or Pest

Apiognomonia veneta

Apiognomonia_venetaAnthracnose affects many hosts, but it is most common on California Sycamore. On California Sycamore kills shoots and causes leaf tissue to die beginning along the veins. Prolonged spring rains and fog m...

Leaf Spot
Pseudomonas lauraceum

This bacteria causes small angular, black lesions on the leaves.

Sooty Mold
Phaeosaccardinula dermatia

Phaeosaccardinula_dermataSooty mold is indicated by black or dark, resinous, hyphal growth on upper and lower leaf, fruit, twig, and branch surface. This commonly occurs where aphids or mites are working on the foliage of the tre...

Sudden Oak Death
Phytophthora ramorum

AerialPhytophthora ramorum causes two types of symptoms on affected plants. In some it causes bleeding cankers on the mainstem with red-brown exudate. Zone lines are present around diseased tissue when bark is ...

White mottled rot
Ganoderma applanatum

Ganoderma_applanatumWhite mottle rot fruiting bodies are perennial, leathery to woody, flat or plate-like. The upper surface is light brown and often covered with brown spores. The lower surface is white turning brown when ...