Vale Adjunct Professor Errol Hassan

A headshot of Errol Hassan smiling

Images courtesy of the Hassan family, unless otherwise credited.

Images courtesy of the Hassan family, unless otherwise credited.

The University of Queensland pays tribute to the late Adjunct Professor Dr Errol Hassan – celebrated entomologist at UQ’s School of Agriculture and Food Sciences.

Dr Hassan passed away in June, age 87, and his passing ended a distinguished and highly productive academic and scientific career in entomology and crop protection that spanned 49 years.

Although Adjunct Professor Hassan’s work leaves its own legacy, his contributions and achievements in the areas of entomology and agricultural sciences continue to be celebrated by his family and many colleagues.

Throughout his extensive career, Dr Hassan developed many close friendships, and personal and professional associations.

He worked with farming communities throughout Queensland, local growers in Gatton, and agricultural groups overseas in countries like Indonesia, Turkey, Maldives, USA, Canada, and South Korea.

He was well-liked and highly respected and his warm and cheerful smile, generosity, and passion for the science of entomology has left an indelible mark on the lives of many.

Students and faculty staff held Dr Hassan in high regard. He was Patron of the QAC Overseas Students Association and was actively involved in planning and organising excursions, the annual Overseas Students Cultural night, and student barbeques.

Beyond that, Adjunct Professor Hassan was a caring person who showed deep loyalty and a strong commitment to those around him.

These attributes also form part of his legacy, and they cement him firmly and fondly in peoples’ memories, and in those others who knew him well.

After Dr Hassan retired in 2002, he continued to have close associations with UQ Gatton.

He found his second career wind as an Adjunct Professor, delivering lectures in entomology, teaching programs with UQ Skills, and supervising a broad pool of students completing Honours, Masters, and PhD research projects.

A black-and-white image of three men congregating at a professional conference

Dr Hassan at an Entomology conference in 1963.

Dr Hassan at an Entomology conference in 1963.

A black-and-white image of three people, including Errol Hassan, in a field of plants surrounded by a fence
Errol Hassan sitting at a desk with a microscope on it while inspecting a sheet of butterfly specimens
Errol Hassan inspecting a plant growing in a field with a small handheld tool
Errol Hassan with one of his students inspecting a plant with many green leaves
A black-and-white photo of Errol Hassan with a Phd student. They are at a desk with a microscope sitting on it.

Deputy Head of the School of Agriculture and Food Sciences, Professor Vic Galea, spent more than 30 years working alongside Dr Hassan and looks back on those experiences with great fondness.

“I was filled with sadness to learn of Errol’s passing,” Professor Galea said.

“I met him when I started as a young lecturer in plant pathology within the Plant Protection Department at what was then known as the Queensland Agricultural College (QAC), now UQ Gatton, in 1988.

“He was a wonderfully engaging lecturer and a serious entomologist who was always generous with his time and patient with students as they learned the ropes.

“He always had a smile and only ever saw the possibilities and potential in people and research ideas.

“I will miss his friendship; he is my longest standing colleague.”

Several rows of butterfly specimens on display

Image: The University of Queensland

Several rows of butterfly specimens on display

Image: The University of Queensland

Lara Senior, who is a Senior Entomologist with the Department of Agriculture and Fisheries (DAF), first crossed paths with Dr Hassan while working at Gatton Research Station in the late 2000s, where she was invited to co-supervise a PhD student’s research project.

This invitation sparked a special professional partnership and a dear friendship.

“In the following years, I co-supervised several students and we also worked on some research proposals together,” Lara recalls.

“In fact, I had been collaborating on a paper with him before his passing.

“One of his greatest achievements was teaching and lecturing, and the positive impact he had on his students is plain to see.

“Many of my colleagues in DAF who studied at Gatton were taught entomology by Errol and remember him very fondly.

“He was a genuinely lovely person who always made time for a chat and would always ask about me, my family, and acquaintances we had in common.

“He was very generous with his expertise and his time, and I’ll miss him both as a colleague and a friend.”

Dr Hassan’s lifetime of dedication to science, his students, and his community, will ensure his work and name will live on, both through the love of his family and the generations of fellow scientists he helped to inspire.

Adjunct Professor Dr Errol Hassan is survived by his wife Ursula and their three daughters and their families.

A black-and-white photograph of Errol Hassan wearing a graduation cap and gown and smiling

Fifty years of excellence

A shelf with a display case of butterfly specimens, two plants, and three entomology textbooks

Image: The University of Queensland

Image: The University of Queensland

Dr Hassan’s career began at UQ in 1973 as a lecturer in entomology at UQ Gatton, where his infectious enthusiasm and in-depth knowledge of insects and all aspects of biological sciences inspired countless students and colleagues.

Additionally, Dr Hassan made significant contributions to the development of entomology and plant protection course materials and manuals. Throughout his teaching career, Dr Hassan was a dedicated, committed, and engaging lecturer and research mentor.

He was principal supervisor to many higher degree research and honours students. He was also instrumental in setting up, storing, and curating the Plant Protection Department’s extensive insect and butterfly collections.

A black-and-white image of Dr Errol Hassan wearing a suit and tie and smiling

Dr Errol Hassan, 1973.

Dr Errol Hassan, 1973.

An accomplished scientific writer, Dr Hassan was sole author of five reference books on insect and mite pest identification and insect control management, which continue to be referenced today. He also authored many highly regarded scientific papers, book chapters, symposia proceedings, and workshops. He served as editor on various international zoology, plant biology and entomology journals. His expertise and knowledge were also highly sought after at several international conferences, where he was invited to speak as either keynote or guest speaker on numerous occasions.

A collection of textbooks and journal articles about entomology and plant production

His active and highly productive research career at UQ Gatton continued after his retirement, where he became a passionate advocate in the use of ecological-based methods to improve safer pest control strategies, and effective integrated pest management. Much of his later research projects centred on beneficial insects, such as ladybugs and parasitic wasps, essential oils, and plant-based botanical pesticides to manage and control insect and mite pests in agriculture.

Susanne and Shirin Hassan each holding a display of insect specimens. Three entomology textbooks are laid out in front of them.

Two of Dr Hassan's daughters, Susanne and Shirin.

Two of Dr Hassan's daughters, Susanne and Shirin.

Dr Hassan’s contribution to entomology worldwide has been recognised by other colleagues who have named five insect species after him. Two notable examples being the Epitranus hassani sp. and Megastigmus erolhasani wasps.

An illustration of a green insect with wings and antennae

Artist's interpretation of the Epitranus hassani, named after Dr Hassan.

Artist's interpretation of the Epitranus hassani, named after Dr Hassan.

More recently, one of Dr Hassan’s most cherished research outcomes came in 2019, when he discovered a newly found wasp in the Mojave Desert, California, that he named after his beloved wife of more than 50 years, Ursula.

Ursula and Errol Hassan smiling while standing under a tree in front of a brick building
Errol Hassan with a student examining plants in a laboratory
Shireen and Susanne Hassan smiling at each other. They are both holding a single display of butterfly specimens.
Several butterfly specimens, each in its own shallow white box
A frame containing many stick insect specimens
A black butterfly specimen with purple markings
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Errol Hassan with a student examining plants in a laboratory
Shireen and Susanne Hassan smiling at each other. They are both holding a single display of butterfly specimens.
Several butterfly specimens, each in its own shallow white box
A frame containing many stick insect specimens
A black butterfly specimen with purple markings