Sometimes insects become resistant or less sensitive to a pesticide that is used to control the pest. Resistance can occur when the same or similar pesticides are used over and over again.
![Natasha Umezu](https://entomology.unl.edu/styles/faculty_profile_image/public/Umezu_Natasha.jpg?itok=bBy8dBVR)
Natasha Hiromi Umezu
Ph.D. Graduate Research Assistant
UNL Entomology Department
208 ENTO
1700 East Campus Mall
Lincoln, NE 68583-0816
208 ENTO
1700 East Campus Mall
Lincoln, NE 68583-0816
![Xi Xian Ng](https://entomology.unl.edu/styles/faculty_profile_image/public/Xixian%20Ng%202.jpg?itok=ZXMkNzlq)
Xi Xian Ng
Ph.D. Graduate Research Assistant
220 Entomology Hall
1700 East Campus Mall
Lincoln, NE 68583-0816
1700 East Campus Mall
Lincoln, NE 68583-0816
![Courtney Brummel](https://entomology.unl.edu/styles/faculty_profile_image/public/Brummel_Courtney_pix_0.png?itok=pRXroKgw)
Courtney Brummel
Project Coordinator
Bees and Pollinator Health; Communications
Entomology Hall
105 ENTO Hall
1700 East Campus Mall
Lincoln, NE 68583-0816
105 ENTO Hall
1700 East Campus Mall
Lincoln, NE 68583-0816
![Nikki Luhr](https://entomology.unl.edu/styles/faculty_profile_image/public/Luhr_Nicole.png?itok=JzkuJETK)
Nicole Luhr
Research Technologist I
Integrated Pest Management (IPM), Ecology of Insects
University of Nebraska Haskell Ag. Lab
57905 866 Rd.
Concord, NE 68728-2828
57905 866 Rd.
Concord, NE 68728-2828
![Dr. Shripat Kamble](https://entomology.unl.edu/styles/faculty_profile_image/public/kamble_shripat.jpg?itok=QCchl8qP)
Dr. Shripat Kamble (Emeritus)
Emeritus Professor
Insecticide application and exposure in field crops, Pest management practices
University of Nebraska-Lincoln
Department of Entomology
210 Entomology Hall
Lincoln, NE 68583-0816
Department of Entomology
210 Entomology Hall
Lincoln, NE 68583-0816
![Dr. E.A. Heinrichs](https://entomology.unl.edu/styles/faculty_profile_image/public/heinrichs_short.jpg?itok=RjaYk8Zj)
Dr. E.A. "Short" Heinrichs (Emeritus)
Emeritus Professor
Integrated Pest Management (IPM), International agriculture
![John Foster](https://entomology.unl.edu/styles/faculty_profile_image/public/foster_john.jpg?itok=bMceAPd1)
Dr. John Foster (Emeritus)
Emeritus Extension & Research Entomologist
University of Nebraska-Lincoln
Department of Entomology
103 Entomology Hall
Lincoln, NE
68583-0816
Department of Entomology
103 Entomology Hall
Lincoln, NE
68583-0816
![Dr. Troy Anderson](https://entomology.unl.edu/styles/faculty_profile_image/public/Anderson%20Photo%202022_0.jpg?itok=SLQ7EfKS)
Dr. Troy Anderson
Professor
Insect Physiology
109D Entomology Hall
Department of Entomology
Lincoln, NE 68583-0816
Department of Entomology
Lincoln, NE 68583-0816