* Richardson PA, Daughtrey M, Hong CX (2020) Indications of susceptibility to Calonectria pseudonaviculata in some common groundcovers and boxwood companion plants. Plant Disease 104:1127-1132. https://doi.org/10.1094/PDIS-08-19-1582-RE
------- inoculation trials.
* Cave GL, Randall-Schadel B & Redlin SC (2008) Risk analysis for Phytophthora ramorum Werres, de Cock & Man in’t Veld, causal agent of sudden oak death, ramorum leaf blight, and ramorum dieback. US Department of Agriculture, Animal and Plant Health Inspection Service, Raleigh, NC.
* Garbelotto M, Popenuck T, Hall B, Schweigkofler W, Dovana F, Goldstein de Salazar R, Schmidt D, Sims LL (2020) Citizen science uncovers Phytophthora ramorum as a threat to several rare or endangered California Manzanita species. Plant Disease 104(12), 3173-3182.
------- Arctostaphylos hooveri, A. montereyensis, A. morroensis, A.pilosula.