Dr. Ian Denholm BSc PhD


Ian spent thirty years as an agricultural scientist at Rothamsted Research, heading their Plant and Invertebrate Ecology Department, while remaining very active in field botany and within BSBI. As BSBI’s co-referees for Orchids, Ian and Professor Richard Bateman (Kew) are the botanical experts to whom the society’s 3,000 members, and the wider botanical community, turn to for advice on correct identification of these difficult plants. He now combines a Visiting Scientist role at Rothamsted with a part-time academic position at the University of Hertfordshire.

In June 2013 Dr. Denholm became the President of the Botanical Society of the British Isles.

Recent publications

  • Longhurst, C., Babcock, J.M., Denholm, I., Gorman, K., Thomas, J.D. & Sparks, T.C. (2013). Cross-resistance relationships of the sulfoximine insecticide sulfoxaflor with neonicotinoids and other insecticides in the whiteflies Bemisia tabaci and Trialerurodes vaporariorum. Pest Management Science, 69(7): 809-813.
  • Denholm, I. & Devine, G.J. (2013). Insecticide Resistance.In S. A. Levin (Ed.), Encyclopedia of Biodiversity. (2nd edition: 298-307). Academic Press, Waltham, MA.
  • Erdogan, C., Velioglu, A.S., Gurkan, M.O., Denholm, I. & Moores, G.D. (2012). Chlorpyrifos ethyl-oxon sensitive and insensitive acetylcholinesterase variants of greenhouse whitefly, Trialeurodes vaporariorum (Westw.) (Hemiptera: Aleyrodidae) from Turkey. Pesticide Biochemistry and Physiology, 104(3): 273-276.
  • Karatolos, N., Gorman, K., Williamson, M.S. & Denholm, I. (2012). Mutations in the sodium channel associated with pyrethroid resistance in the greenhouse whitefly, Trialeurodes vaporariorum. Pest Management Science, 68(6): 834-838.
  • Karatolos, N., Williamson, M.S., Denholm, I., Gorman, K., Ffrench-Constant, R. & Nauen, R. (2012). Resistance to spiromesifen in Trialeurodes vaporariorum is associated with a single amino acid replacement in its target enzyme acetyl-coenzyme A carboxylase. Insect Biochemistry and Molecular Biology, 21(3): 327-334.

Dr. Denholm's extended publications list.

Link to UH profile page.

University of Hertfordshire
University of Hertfordshire, 2017.