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Michael W.
Dryden
DVM, MS, PhD
Professor, Veterinary Parasitology
Phone - (785)532-4613
Fax - (785)532-4039
Email - Dryden@vet.ksu.edu
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Dr. Dryden’s primary research
focus has been the biology and control of fleas and ticks infesting dogs
and cats. These research efforts have resulted in numerous publications
on flea and tick ecology and control. The flea and tick research team
has conducted research on numerous insecticides including fipronil
(Frontline® & Frontline®Plus), imidacloprid (AdvantageTM),
imidacloprid-permethrin (K9 AdvantixTM), lufenuron (Program®),
permethrin, nitenpyram (CapstarTM) and selamectin (RevolutionTM). These
research efforts are possible by utilizing the collective strengths of a
variety of team members including Research Technicians Vicki Smith, Amy
Lowe and Sara Mailen and Dr.
Patricia Payne, Assistant Research Professor in Parasitology. The
“Flea and Tick Team” has conducted in-home evaluations of these products
in Manhattan KS and Tampa FL and field studies at the Konza Prairie
Biologic Station. Many of these projects are conducted in cooperation
with faculty in the Department of Entomology at Kansas State. While
ticks are a more recent area of emphasis; several projects are on going
including investigating seasonal tick questing patterns in eastern
Kansas, investigating acaracide resistance in ticks and evaluations of
effectiveness of various topical acaracides.
A second area of cooperative
research between the College of Veterinary Medicine, Department of
Entomology and the Division of Biology at KSU has involved investigating
the interactions of urban wildlife with humans and their pets. As a
result of continual urbanization, displaced wildlife often finds refuge
and seeks food in suburban areas. Interactions with some of the most
common species of urban wildlife, such as raccoons, skunks or opossums
may pose serious health risks to humans and their pets.
A third area of research includes
investigations into the epidemiology, diagnosis and control of
gastrointestinal parasite in dogs and cats. Several studies have been
completed including studies detailing the severity of parasite
contamination of the environment, prevalence of parasite infestations in
greyhounds in Kansas and development of anthelmintic resistance. A major
focus of this research is evaluating fecal diagnostic techniques.
Additionally, recent projects have included evaluating various
diagnostic and treatment options for Giardiasis.
These research efforts have
received both National and International recognition with over 85
published papers, 8 book chapters, and 85 scientific presentations at
national and international meetings. In 1995 he received the "Pfizer
Award for Research Excellence" for contributions that significantly
advance our knowledge of animal health. Additionally the clinical
significance of this research has resulted in over 700 invited seminars
in 21 different countries and the 2005 Kansas Veterinary Medical
Association’s “KSU-Distinguished Service Award” . Dr. Dryden has also
appeared on television programs and media events in the U.S.( Good
Morning America, CBS this Morning and the Discovery Channel), Canada,
England, France, and Spain to explain the team’s research findings.
Dr. Dryden is the course coordinator of DMP 718
Veterinary Parasitology and gives selected lectures in DMP 780 Avian
Diseases (parasitology lectures). In 2006 he received the Bayer Animal
Health, Teaching Excellence Award in recognition of outstanding
instruction of second year veterinary students.
Dryden MW.
Potential Health Hazards of Urban Wildlife to humans and their pets.
Presented at the Western Veterinary Conference, Las Vegas, NV February 1999.
(Requires
Adobe Acrobat Reader)
Dryden M. Host Association, On Host Longevity and Egg Production of Ctenocephalides felis. Vet. Parasitol. 34:117-122, 1989.
Dryden M, Gaafar S. Blood Consumption by the Cat Flea,
Ctenocephalides felis felis (Siphonaptera: Pulicidae). J. Med. Entomol.
28(3):394-400, 1991.
Dryden M, Broce A. Development of a flea trap for
collecting newly emerged Ctenocephalides felis (Siphonaptera: Pulicidae)
in homes. J. Med. Entomol. 30:901-906, 1993.
Dryden M, Broce A, Moore W. Severe flea infestation in
dairy calves. J. Am. Vet. Med. Assoc. 203:1448-1452, 1993.
Schoning P,
Dryden M. Identification of a Nasal Nematode
(Eucoleus boehmi) in greyhounds. Vet. Res. Comm. 17:277-281, 1993.
Dryden M, Rust M. The Cat Flea - Biology, Ecology and
Control. Vet. Parasitol. 52:1-19, 1994.
Ridley R,
Dryden M, Gabbert N, Schoning P. Epidemiology
and control of helminth parasites at greyhound breeding farms. Comp.
Cont. Ed. Pract. Vet. 16:585-560, 1994.
Rust W,
Dryden M.
The biology, ecology and management of
the cat flea. Ann. Rev. Entomol. 42:451-473, 1997
Ball R,
Dryden M, Wilson S, Veatch J. Cerebralspinal
nematodiasis in a white-handed gibbon (Hylobates Lar) due to
Baylisascaris Procyonis. J. Zoo. Wildf. Med. 1998;29:221-224.
Dryden M, Perez H, Ulitchny D. Control of flea
populations on naturally infested dogs and cats and in private
residences with either topical Imidacloprid spot application or the
combination of oral lufenuron and pyrethrin spray. Am. J. Vet. Med.
Assoc.1;215(1):36-9. 1999.
Miller R.
Dryden M. Broce A. Suiter. Pupation Site
Selection of Cat Fleas (Siphonaptera: Pulicidae) in Various Carpet Types
and Its Influence on Insecticide Efficacy. J. Econ. Entomol.
93:1391-1397, 2000.
Dryden M, McCoy C, Payne P. Rate of kill of nitenpyram tablets,
imidacloprid spot-on and fipronil spot-on against flea infestations on
dogs. Comp. Cont. Ed. Pract. Vet. 23:3(A), 24-27, 2001.
Payne P,
Dryden M, Smith V, Ridley R.
Effect of 0.29%
w/w fipronil spray on adult flea mortality and egg production of three
different cat flea, Ctenocephalides felis (Bouche), strains infesting
cats. Vet Parasitol. 102(4):331-40. 2001
Dryden M, Maggid-Denenberg T, Bunch S, Schenker R.
Control of Fleas on Dogs and Cats and in Private Residences with the
Combination of Oral Lufenuron and Nitenpyram. Vet. Therapeutics
2:208-214, 2001.
Dryden M, Broce A. Integrated flea control for the 21st Century. Comp.
Cont. Ed. Pract. Vet. 24:1 suppl. 36 – 39, 2002
Payne P,
Dryden M, Ridley R, Bathgate C, Milliken G,
Stewart P. Evaluation of the Efficacy of DrontalTM
Plus and GiardiaVaxTM to
Eliminate Cyst Shedding in Dogs Naturally Infected with Giardia sp. J.
Am. Vet. Med. Assoc. 220(3): 330-333, 2002.
Storandt S, Virchow D,
Dryden M, Hygnstrom S, Kazacos K.
Distribution and Prevalence of Echinococcus multilocularis in wild
Predators in Nebraska, Kansas and Wyoming. J. Parasitol. 88(2): 420-422,
2002.
Bossard RL,
Dryden MW, Broce AB. Insecticide susceptibilities of cat
fleas (Siphonaptera: Pulicidae) from several regions of the United
States. J Med Etomol 39:742-746, 2002.
Schroeder I, Blagburn BL, Bledsoe DL, Bond R, Denholm I,
Dryden MW, Jacobs DE, Mehlhorn H, Mencke N, Payne P, Rust MK, Vaughn MB.
Progress of the international work of the "Imidacloprid Flea
Susceptibility Monitoring Team". Parasitol Res. 2003 Jul;90 Suppl
3:127-8. 2003
Dryden M,
Payne P. Biology and Control
of Ticks Infesting Dogs and Cats in North America. Vet. Ther.
26:2-16. 2004
Dryden M,
Payne P, Ridley R, Smith V.
Comparison of common fecal flotation techniques for the recovery of
parasite eggs and oocysts. Vet Therapeutics 6(1), 14 - 28, 2005.
Dryden M.
Integrated Flea Control: Flea Control For The 21st Century: Presented at the North American Veterinary Conference January 2001.(Requires
Adobe Acrobat Reader)
Dryden M, Payne PA, Zurek L.
Fleas infesting Pets and homes. Kansas State University Extension Manual # MF760. September 2003.
Dryden MW, Payne PA, Zurek L.
Ticks in Kansas.
KSU Extension Bulletin: Kansas State University Extension Manual # MF2653. June 2004.
Dryden MW.
Flea
and Tick Control: Real Medicine. Presented at the North American Veterinary Conference, Orlando Fl. January 2004.
(Requires
Adobe Acrobat Reader)
Dryden MW.
Understanding Persistent and Recurrent Flea Problems. Presented at the Western Veterinary Conference, Las Vegas, NV February 2004.
(Requires
Adobe Acrobat Reader)
Dryden MW,
Payne PA, Ridley R, Smith V. Comparison of common fecal flotation
techniques for the recovery of parasite eggs and oocysts. Vet
Therapeutics 6(1), 14 – 28, 2005.
Dryden MW,
Smith V, Payne PA, McTier TL. Comparative Speed of Kill of Selamectin,
Imidacloprid, and Fipronil–(S)-Methoprene Spot-On Formulations against
Fleas on Cats. Vet Therapeutics 6 (3):28-236, 2005.
Dryden MW,
Payne PA, Smith V, Hostetler J. Efficacy of imidacloprid (8.8% w/w) plus
permethrin (44% w/w) spot-on topical solution against Amblyomma
americanum infesting dogs using a natural tick exposure model. Vet
Therapeutics (7): 99-106, 2006.
Dryden MW,
Payne PA, Ridley R, Smith V.
Gastrointestinal
Parasites: the practice guide to accurate diagnosis and treatment.
Supplement to Compendium: Continuing Education for Veterinarians. 28
(8A): 3 -13, 2006. (Requires Adobe Acrobat Reader)
Dryden MW,
Payne PA, Smith V, Hostetler J. Evaluation of an Imidacloprid (8.8%
w/w)–Permethrin (44.0% w/w) Combination Topical Spot-On and a Fipronil
(9.8% w/w)–(S)-Methoprene (8.8% w/w) Topical Spot-On to Repel, Prevent
Attachment, and Kill Adult Ixodes scapularis and Amblyomma americanum on
Dogs. Vet Therapeutics 7(3):173-186, 2006.
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