Professor Emeritus
He retired from AUB in 1986, was named Professor Emeritus in 1988, and continued to lecture on a voluntary basis until 1990.
While at AUB Professor Talhouk engaged in a variety of research projects dealing with the chemical control of insect pests and undertook biological and ecological studies of pests and virus transmitters. He discovered some 400 insects in Saudi Arabia that were previously unknown, and some 150 species of insects and mites new to science in Lebanon, Syria, and Saudi Arabia.
In recognition of this achievement, one genus and twelve species from Arabia and thirteen species from Lebanon and Syria were named after Talhouk (e.g., Synopseas Talhouki and Nigilgia Talhouki) by leading world taxonomists.