Farmers say they are heading towards a difficult and uninspiring harvest.

Birchip Cropping Group chief executive Chris Sounness said many crops in the region would not produce grain.

"It has been a very tough August, September and October," he said.

"Many crops in the Wimmera and southern Mallee are going to come to nothing.

"Crop harvest will be well below average. It is very disappointing."

Mr Sounness said while some farmers were cutting crops for hay, many crops did not have enough bulk to be cut.

He said farms near Beulah, Birchip and Wycheproof were worst affected.

"From early September it was apparent those crops were going to come to nothing," he said.

"Further south, with the amount of rain that fell, crops are deteriorating - especially north of Horsham around Lubeck.

"The season is coming to a disappointing finish."

Mr Sounness said any rain the region received now would be too little, too late.

"Farmers now are just hoping we don't have any extreme heat. Mild conditions would make harvest easier," he said.

"Then farmers will look forward to 2015."

Warracknabeal farmer David Drage said he had cut all his wheat for hay because frost damage meant it had little grain potential.

"Some canola looks good but close examination shows a lot of frost damage," he said.

"Canola has already reached the windrowing stage but I won't be doing that this year and at this stage I don't know how much barley I will harvest.

"I presume when the fuel consumption of the header exceeds the value of the grain coming in, I will give up on it."

Mr Drage said field peas and vetch for seed were still showing good potential.

He said it would be a tough harvest.

"It is important we all keep a look out for each other - there will definitely be long faces as the headers hit the

paddocks, and there are already some who won't use their headers at all.

"It will be a long time to the next harvest, so keep an eye on your mates and don't be afraid to talk about things."

Grain Producers Australia

chairman and Rupanyup farmer Andrew Weidemann said the season was one of the worst since 2006.

"There aren't too many exciting crops around and in this area we were damaged by the continuing dry from the end of July," he said.

"It's been very disappointing since we had a good start to the season.

"It's really sapped the confidence out of the industry."

Mr Weidemann said farmers were now looking ahead to next year.

"Everyone just wants to get through this, not take too long with harvest and hope for a good year next year," he said.

Mr Weidemann has started windrowing canola and estimated he would start harvesting barley by the end of the week.

He said some crops in the region had made it through to harvest despite the dry weather. "There is the odd crop that's on the right soil type that has gone alright," he said.

Mr Weidemann said it was important farmers remembered they were all in the same boat.

"We are in this together and we have been here before," he said.

"We just need to get through this in the best shape we can and look towards putting a crop in the ground next year."

Australian Bureau of Agriculture and Resources Economics and Statistics' October crop report forecasts a total wheat crop of 22 million tonnes.

The bureau predicts wheat yields in Victoria will be down 32 per cent on last year.