Professor Cohen is resuming teaching an insect rearing course in 2022. However, we are now trying a new approach with what we call “HYBRID COURSES” where students can take the for-credit courses as offerings from the NCSU Department of Entomology and Plant Pathology. The course is under the NCSU course offering called Entomology 591/791, designed for graduate students to learn about the science of insect rearing. These courses are full-credit (3 semester units) and involve lectures and laboratory practices, including a rearing project where each student goes through a rearing experience. This time, the students will be using the insect Galleria mellonella L. as their research subject, and they will rear their waxworms from 2nd instar larvae to 7th instar, using several different diets and following the design of experiments framework (response surface design and full-factorial design). The “for credit” rearing courses include a write-up of their research project and two mid-terms and one final exam where students are asked to write short and longer essays explaining various aspects of rearing systems that they are learning about in class.Students from 2019 Rearing Class This image shows the most recent class in insect rearing visiting Dr. Reiskind’s mosquito rearing laboratory. This was the last (“pre-COVID”) class that was taught in 2019. PLEASE CONTACT PROFESSOR COHEN AT TO LEARN MORE ABOUT THE FOR-CREDIT COURSES.

On-Site Education Activities: Rearing Courses, Visits to Insect Rearing Education & Research Laboratory

Rearing Classes at NCSU

Onsite Rearing Classes at NCSU

Professor Allen Carson Cohen joined the Entomology Department (now Department of Entomology and Plant Pathology) at North Carolina State University as a research professor, he has taught several in person (on-site) classes in insect rearing.  He has also taught workshops in insect rearing and insect diets.  The on-site rearing courses have received high praise from nearly every student who has taken these offerings, and students especially appreciated the “know your insect” approach to rearing and the emphasis on treating rearing as a science with rigor and cross-disciplinary emphasis.

Rearing as science_Page_16

Students from 2011 Rearing Course (Michelle Meck (upper left), Micah Gardner and Kelly Oten (upper right); Andrew Ernst (lower left); Nancy Brill and Alana Jacobsen (lower right)

Students from 2019 Rearing Class

2019 Rearing Class

Mary and David 004Former students in the insect rearing courses (David Bednar and Mary Talley).

Students from most recent rearing course (2015)

Students from most recent rearing course (2015) (Nick Travanty, Arun Babu, Bobbie Mitchell, Anirudh Dhammi, Synda MacCracken, Folukemi Adedipe, and Forrest Howell (left to right)

Here are the new courses for Spring of 2022:

Course 1: DietsTopics (emphasis on quality diets’ characteristics: palatability, nutrition, bioavailabilty, stability)
March 1, 2022Introduction, how we study diets
March 3, 2022Kinds of diets/ Nutrition
March 8, 2022Nutrition Feeding biology
March 10, 2022Feeding biology (mouth parts)
March 15, 2022Feeding biology (gut structures, etc.)
March 17, 2022Diet equipment
March 22, 2022Diet error factors/ diet interactions
March 24, 2022Diet development
Course 2: Operations Emphasis on Structural Dynamics of Multiple Rearing Systems
March 29, 2022Introduction, the system concept
March 31, 2022Understanding the interplay between system components
April 5, 2022System Case Studies: silkworms, Drosophila rearing systems
April 7, 2022Case Studies: pink bollworm, Mass-rearing boll weevils, corn earworms, army worms
April 12, 2022Case Studies: Gypsy moth and screwworms
April 14, 2022Case Studies: tephritid fruit flies
April 19, 2022Case Studies: plant bugs and predators
April 21, 2022Case Studies: other major rearing operations
Course 3: Stress, Design, ControlEmphasis on Control of Stress Factors and Reducing Error
April 26, 2022Introduction, design of experiments and statistical process control
April 28, 2022Quality control, process control, error
May 3, 2022Microbial Relations Part 1
May 5, 2022Microbial Relations Part 2
May 10, 2022Domestication and Genetics Part 1
May 12, 2022Domestication and Genetics Part 2
May 17, 2022Stress, Homeostasis, and Stability Part 1
May 19, 2022Stress, Homeostasis, and Stability Part 2
May 24, 2022Conclusions and Discussion (extra, optional class meetings for wrap-up and clarification of students’ special issues)
May 26, 2022Conclusions and Discussion (extra, optional class meetings for wrap-up and clarification of students’ special issues)

These classes are scheduled to be taught live (via Zoom and Moodle) from 2:00-4:20 pm Eastern Time. However, we can arrange to have different times to accommodate people from time zones that are very different from the US times. For example, last year, I taught the classes from 7:00 to 9:20 pm (Eastern Time) to accommodate people in the Asian-Pacific region. We can arrange times for Asian-Pacific, African and European participants, provided that we can get five or more participants for each time frame. To meet the needs of our world audience, we can begin lectures at times that correspond with convenient local times.

Registration Fees: $250 for each course ($750 for all three courses).

Please note that these 3 courses can be taken in any sequence (i.e., Course 1 is not a pre-requisite for Course 2, etc.) However, there are unique materials in each course, so for a comprehensive rearing background, it is recommended that students take all three courses. The courses consist of eight 2 hour and 10-minute lectures, so the 3 courses (24 lectures) provide 52 hours of concentrated learning opportunity. Also, Professor Cohen encourages students to remain online after class to ask questions or discuss issues of particular interest to them. This feature gives students a further opportunity to get advice and feedback from their instructor. The extensive interactions in these courses are further enhanced by the opportunity to communicate special questions or issues via email. Professor Cohen believes deeply in the Socratic method of inquiry, and he fosters learning by being open to students’ interacting with the materials and he encourages students to further integrate what they have been learning in class with their experiences in their own rearing backgrounds.

To register for courses, please contact Ms. Carolyn Howard (

Insect Diet Science and Technology:

Insect Rearing System Operations:

Design and Control of Insect Rearing Systems:

Carolyn Howard, CPP

Program Assistant

McKimmon Center for Extension and Continuing Education

Office of Professional Development

NC State University

Campus Box 7401

Raleigh, NC 27695

Direct Line: 919-513-2798

Fax: 919-515-7614