Saskatchewan farm leaders are worried about rising costs with more concentration in the farm supply business.
German drug and farm chemical maker Bayer is buying Monsanto for 66 billion dollars.
Bayer makes a wide range of crop protection chemicals, while Monsanto is known for its seed business.
The chair of the Saskatchewan Wheat Development Commission has some concerns.
Bill Gehl of Regina is worried it could mean higher costs for farmers.
He says this type of market concentration usually means higher prices to producers.
When there is reduced competition, he says farm costs go up.
The chair of the Western Wheat Growers Association, Jim Wickett of Rosetown, says the competition bureau will need to take a close look at the take-over.
He says the two companies will have a stranglehold on canola traits and over two-thirds of canola seed sales.
He says costs are rising while farm income is falling.
He says the Wheat Growers are all about free markets but one company controlling 95 per-cent of canola traits is far from a free market.