Tours of the site include the research station field and farm tour, biosecurity collections and the Global Agri-Tech Ecosystem area.

Dr Jordan Bailey said people could also see historic displays of bugs, butterflies and plant species dating back to the 1890s.

She said the open day would promote the Agricultural Institute’s work on biosecurity, climate research, horticulture, viticulture, invasive species including pest animals and weeds, agronomy, irrigation, sheep and pastures.

“People are curious, they will see the inside of a scientific collection,” she said.

“Even at a museum you can’t go behind the scenes.”

The collections at the institute include the official plant and disease records for NSW.

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She said since the 1990s with the evolvement of DNA information researchers now came to the institute’s herbarium to examine specimens.

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The event is free however booking ahead through Eventbrite is recommended for tours as some are limited to groups of 10 people due to the size of the rooms.

The farm tours will be conducted on a bus.

As the site is a working farms no pets are allowed.

The Agricultural Institute is on Forest Road.