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Allen Knutson

Knutson, Allen
Allen Knutson
Professor and Extension Entomologist

Dr. Knutson develops educational materials and programs on integrated pest management (IPM) of insect pests of cotton, wheat, sorghum, pecans, corn and other crops and supports county extension agents with educational programs in IPM. He serves as statewide coordinator for biological control programs for Extension entomology faculty; develops cooperative programs on biological control and educational materials.

Areas of Expertise:

  • Integrated pest management of major row crops and pecans
  • Biological control of insect pests and weeds
  • Use of pheromones for monitoring and mating disruption
  • Host plant resistance in cotton to plant bugs
  • Sampling methods for beneficial insects in cotton


Extension Publications

  • Cronholm, G., A. Knutson, R. Parker and B. Pendleton. 2007. Managing insect and mite pests of Texas sorghum. Texas Cooperative Extension Bulletin B-1220. Knutson, A. 2007. Insect Pest Management Resource on CD. Texas Cooperative Extension SP-198.
  • Patrick, C. and A. Knutson, 2006. Managing insect and mite pests of Texas small grains. Texas Cooperative Extension Bulletin E-399.
  • Knutson, A., K. Ong, J. Kamas, B. Ree and D. Mott. 2005. Homeowners guides to pests of peaches, plums and pecans. Texas Cooperative Extension Bulletin E-145.
  • Knutson, A. and B. Ree. 2004. Managing insect and mites of commercial pecans in Texas. Texas Cooperative Extension Bulletin E-215.
  • Knutson, A. and J. Ruberson. 1996. Recognizing the Good Bugs in Cotton or A Field Guide to the Predators, Parasites and Pathogens Attacking Insect and Mite Pests of Cotton. Texas Cooperative Extension Bulletin. 123 pp.

Research Publications

  • Hudgeons, J., A. Knutson, K. Heinz, C. J. DeLoach, T. Dudley, J. Pattison and J. Kiniry. 2007. Defoliation by introduced Diorhabda elongata leaf beetles (Coleoptera: Chrysomelidae) reduces carbohydrate reserves and regrowth of Tamarix (Tamaricaceae). Biological Control. In press.
  • Hudgeons, J., A. Knutson, C. J. DeLoach, K. Heinz and W. A. McGinty. 2007. Establishment and Biological Success of Diorhabda elongata elongata1 on Invasive Tamarix in Texas. Southwestern Entomologist. In press.
  • Butler, J. J. Bernal, and A. Knutson 2007. Effects of malathion ULV applied for boll weevil eradication on survival and foraging activity of red imported fire ant in Texas cotton. International Journal of Pest Management. 53:69-76.
  • Heithold, J., A. Knutson, J. Farr and B. Langston. 2006. Early-season thrips control and soybean yield in north Texas. Southwestern Entomologist 31:113-120.
  • Diaz, R., A. E. Knutson and J. S. Bernal. 2004. Effect of the red imported fire ant on cotton aphids population density and predation of bollworm and beet armyworm eggs. J. Econ. Entomol. 97:222-229.
  • Lewis, P. A, C. Jack DeLoach, A. E. Knutson and J. L. Tracey. 2003. Biology of Diorhabda elongata deserticola (Coleoptera: Chrysomelidae), an Asian leaf beetle for biological control of saltcedar (Tamarix spp.) in the United States. Biological Control. 27:101-116.
  • Harris, M. A., A. Knutson, A. Calixto, A. Dean, L. Brooks, and B. Ree. 2003. Impact of red imported fire ant on foliar herbivores and natural enemies. Southwestern Entomologist Suppl 27: 123-134.
  • Stevenson, D. E., A. E. Knutson, W. Ree, J. A. Jackman, A. Dean, J. H. Matis, et al. 2003. Pecan nut casebearer pheromone monitoring and degree-day model validation across the pecan belt. Southwestern Entomologist Suppl 27:57-73.
  • Knutson, A. E. and L. Tedders. 2002. Augmentation of green lacewing, Chrysoperla rufilabris, in cotton in Texas. Southwest. Entomol. 27:231-239.
  • Knutson, A. E., E. A. Rojas, D. Marshal and F. E. Gilstrap. 2002. Interaction of parasitoids and resistant cultivars of wheat on Hessian fly, Mayetiola destructor Say. Southwest. Entomol. 27:1-10.
  • Knutson, A. E., M. K. Harris and J. G. Millar. 1998. Effects of pheromone dose, lure age and trap design on capture of male pecan nut casebearer in pheromone-baited traps. J. Econ. Entomol. 91:715-722.
  • Millar, J. G., A. E. Knutson, J. S. McElfresh, R. Gries, G. Gries and J. Davis. 1996. Sex attractant pheromone of the pecan nut casebearer (Lepidoptera:Pyralidae). Bioorganic and Medicinal Chemistry. 4:331-339.

Extension Programs