- Warren, B. J. 1985. Why we need to control pine beetles in wilderness areas . Forest Farmer 44:6-8.
- Warren, D. W. 1962. Why save the elms? . Annual Conference on Dutch Elm Disease, Proceedings 17:3-4.
- Warren, L. O. 1965. Controlling insect damage to young southern pine stands. Pages 88-102 in Insects in Southern forests. Louisiana State University Press, Baton Rouge.
- Yearian, W. C., and L. O. Warren. 1964. Insects of pine cones in Arkansas . Kansas Entomological Society, Journal 37:259-264.
- Warren, G. R. 1987. Sapwood decay systems of spruce budworm killed balsam fir in Newfoundland, Canada . Canadian Journal of Plant Pathology 9:286-287.
- Czokajlo, D., R. Wink, J. Warren, and S. Teale. 1997. Growth reduction of Scots pine, Pinus sylvestris, caused by the larger pine shoot beetle, Tomicus piniperda (Coleoptera, Scolytidae), in New York State . Canadian Journal of Forest Research 27:1394-1397.
- Warren, C., D. Wood, S. Seybold, A. Storer, and W. Bros. 1996. Olfactory responses of Ips plastographus maritimus Lanier (Coleoptera: Scolytidae) to insect and host- associated volatiles in the laboratory . Journal of Chemical Ecology 22:2299-2316.
- Warren, J., H. Allen, and F. Booker. 1999. Mineral nutrition, resin flow and phloem phytochemistry in loblolly pine . Tree Physiology 19:655-663.