[crazy4cats]

Hi HDM-
How high do the temperatures have to be for mosquitoes to transmit heartworm? I haven’t used heartworm preventative before, but apparently it is starting to show up a bit now in the NW. Vets are starting to recommend it now, where they never have before. If I did decide to start it up, I would want to do something like you are doing as it is still not very common here. Thanks for your help.