Dr. Ken Holscher had a total of 112 students enrolled in ENT 283 in spring semester 2017. Usually about half of the students opt to take the IDALS State Pesticide Certification Exam; its voluntary. This semester 83 students took the exam. About 2/3 of the students took the exams required to be a Commercial Applicator (Core Manual Exam and at least one Category Exam). The remaining 1/3 took the exams required to be a Private Applicator (either the Core Manual Exam or the Private Applicator Exam). There were also a few that did both.