* Purcell AH, Saunders SR (1999) Fate of Pierce's disease strains of Xylella fastidiosa in common riparian plants in California. Plant Disease 83, 825-830.
* Varela LG, Smith RJ, Phillips PA (2001) Pierce's disease. University of California. Agriculture and Natural Resources Publications, 20 pp.
* Oatman ER, Fleschner CA, McMurtry JA (1967) New, highly destructive spider mite present in Southern California. Journal of Economic Entomology, 60: 477-480.
* Qureshi SA, Oatman ER, Fleschner CA (1969) Biology of the spider mite, Tetranychus evansi. Annals of the Entomological Society of America, 62: 898-903.
* EFSA (2024) Update of the Xylella spp. host plant database – Systematic literature search up to 31 December 2023. EFSA Journal 22, e8898. https://efsa.onlinelibrary.wiley.com/doi/epdf/10.2903/j.efsa.2024.8898
------- Subspecies unknown.