# Green mould in flow roof **URL:** \ **Category:** Beekeeping - Basics\ **Created:** [July 15, 2021, 3:31pm UTC](https://forum.honeyflow.com/t/green-mould-in-flow-roof/30970 "2021-07-15T15:31:44Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![chau06](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.honeyflow.com/chau06/32/25515_2.png) [@chau06](https://forum.honeyflow.com/u/chau06)\ **Post date:** [July 15, 2021, 5:52pm UTC](https://forum.honeyflow.com/t/green-mould-in-flow-roof/30970/2 "2021-07-15T17:52:42Z")
There are many threads discussing mold in various places in the hive - here’s a link to a recent one. > [@Mold in my boards](https://forum.honeyflow.com/t/mold-in-my-boards/30849): > > Not really a pest or disease but I just found mold starting up between the cover and top board of my flow hive. It doesn’t seem to be effecting the bees but I’d rather take care of it before I start seeing dead bees everywhere. Has anyone else had this problem? How did you deal with it? I’ve seen people use vinegar but I’m a little reluctant the spray vinegar in my hive even if it’s not really in it. Thanks in advance😊 --- _[View the full topic](https://forum.honeyflow.com/t/green-mould-in-flow-roof/30970)._