He studied at Wye College with Frederick Vincent Theobald then at Harvard University with a Carnegie studentship.
He served as a lieutenant in the First World War with the 1st Battalion of the Canadian Machine Gun Corps and was wounded in France in 1918.
During the Second World War, he served as a commanding officer of the Army Basic Training Unit at Wetaskiwin and attained the rank of colonel.
[1] Strickland wrote 60 entomological papers on ecology, life cycles, taxonomy, and pest control.
He is best-known[citation needed] for his prescient 1945 paper, "Could the widespread use of DDT be a disaster?