STAN Heywood of Rosebank had been a dairy farmer for 35 years and although retired still owns 12 hectares (30 acres) of land and wants to know how to control noxious weeds.
For that reason he attended Wednesday's Biological Control Workshop at Lismore Showground held by Far North Coast Weeds and the NSW Department of Primary Industries.
I get very annoyed when people use chemicals to spot control weeds.
"I am more interested in biological rather than chemical solutions in fighting weeds," he said.
"I have always been interested in organics."
One of Mr Heywood's pet hates when it comes to weeds is spot control.
"I get very annoyed when people use chemicals to spot control weeds as it builds a resistance, making them harder to get rid of," he said.
Mr Heywood was one of more than 200 people who attended the workshop to learn the process of controlling weeds using biological factors.
Noxious Weed Extension Officer with Far North Coast Weeds, Kim Curtis, said the day was specifically to get scientists to explain to farmers and landholders latest research. "We are putting together a database to be able to access bio-control agents for different areas," she said.
Bio-control agents can be certain types of insects, such as beetles and weevils, or diseases that work to control some of the noxious weeds in the Northern Rivers area.
"There are different agents for different weeds," Ms Curtis said.
As an example, she said, to fight the common Parramatta grass, a naturally occurring fungus, Nigrospora oryzae, can cause crown rot in the grassy weed.
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