Unseasonably hot weather in the past weeks could reduce the output of Hungary’s farm sector by several hundred billion forints this year, business daily Világgazdaság said on Monday.

Grain yields can drop as much as 20-30% if temperatures are over 32 degrees Celsius for a prolonged period, National Grain Producers Association head József Vancsura told the paper. The lower yields could push prices up 10-15% over last year, he added.

The heat wave is also taking a toll on livestock farmers, costing poultry farmers alone about HUF 1 billion a week, the paper said.

Poultry Products Council chairman Attila Csorbai said prices could climb by 10-15% because of the heat.