Farmers are being told to be mindful hen purchasing hay, with many frost damaged crops being turned into fodder. 

Unseasonably freezing overnight temperatures across much of the county's south and south east has led to widespread failure, with cereal and canola crops are being turned into hay. 

Livestock producers are being warned the crops may contain pesticide residue. 

Rural Editor Emily Minney caught up with Australian Fodder Industry Association Chairman Louis Kelly about the situation