The bat disease white nose syndrome is spreading in much of Wisconsin, potentially causing major problems for farmers. The state D-N-R now says the deadly disease has been confirmed in 14 counties, after it arrived three years ago in Grant County. Much of the southern one third of Wisconsin is affected, along with counties close to the Mississippi River and the far northwest part of the state. Wisconsin is said to have one of the largest populations of hibernating bats in the Midwest, and that has triggered concerns for cave visitors as well as farms that rely on bats for eating insects before they can damage crops. D-N-R officials say the spread of white nose syndrome is “catastrophic,” and they’re trying to find out why higher percentages of bats survive in certain areas where they hibernate in the winter.