Hedges, S. A., 1997b. Hudler, G. W., 1994. IPM for tree and shrub diseases. CRC Press, pp. Hummel, D. N., 1990.
Lawn care without pesticides.
Johnson, W. T., Lyon, Howard H., 1988. Kaplan, J., Marquardt, S., and Barber, W., 1998. Klass, C., and Karasevicz, D. M., 1995a. Cornell Cooperative Extension, Ithaca, NY Klass, C., and Karasevicz, D. M., 1995b. Cornell Cooperative Extension, Ithaca, NY Klotz, J. H., Greenberg, L., Shorey, H. H., and Williams, D. F., 1997.