- Bramble, W. C., and E. C. Holst. 1935. Microorganisms infecting pines attacked by Dendroctonus frontalis [abstract] . Phytopathology 25:7.
- Bramble, W. C., and E. C. Holst. 1940. Fungi associated with Dendroctonus frontalis in killing shortleaf pines and their effect on conduction . Phytopathology 30:881-899.
- Holst, E. C. 1936. Zygosaccharomyces pini, a new species of yeast associated with bark beetles in pines . Journal of Agricultural Research 53:513-518.
- Holst, E. C. 1937. Aseptic rearing of bark beetles . Journal of Economic Entomology 30:676-677.