I have logs here and there throughout my property that are used as dividers and have no problems. I sometimes find compost beetles (good guys) worms (good guys) and some salamanders who love the cool moist conditions there.
Insects can find many places to hide anyway...so I would leave the logs....just my opinion :)

I removed the rock border from my garden to see if it would cut back on hiding places for slugs, next summer will tell the tale! Sorry that's probably not much help! M

I suppose it depends on what your bug tolerance is. Pests that like to munch on decaying matter, like pill bugs and worms, will certainly move in when the wood starts to break down. But the majority of those pests will leave your veggies alone and only eat the the wood as it rots. Pill bugs have been known to cause occasional damage to live plants, and to some seedlings. I usually ignore them though, since they don't bother my plants. If you've got slugs, then they're going to be a problem weather you leave the logs in or take them out - slugs eat live plants and will hide under whatever thay find - leaves, roots, mulch, edging or logs. They can travel quite a distance, so removing the logs won't deter them at all - they'll just find another place to live and complain about the increased commute :-)

There is some benefit to leaving the logs. The bugs eating them will add their 'fertilizer' to your garden, and also attract beneficial insects or birds that will take care of other more serious pests while they're there. As they break down they will add to the organic matter of your veggie garden, and that's always a good thing.

Personally, I'd leave them - I think they look nice, and I have a pretty high bug tolerance. If you keep them, they'll need to be replaced once they're good and rotten, and that may be every two or three years, or every ten years. It depends on how big they are and how much of the log is in contact with the ground.

BP

Thank you msjean, mora, and bonniepunch for your help it is greatly appreciated. I don't know much about gardening so I certainly need help.

I tend to agree with the others. I'd just leave them, a log is not going to be much worse, if any, than wood chip mulch. . . that is commonly used for just about anything. I personally use it as mulch on the walkways of my herb bed and I do not find more bugs there then in my veggie patch or flower beds.

Best defense against unwanted bugs is to keep a tidy veggie garden. Weeds knocked down, plastic trays picked up, etc . . . also consider placing a clay pot on the ground in the garden on its side for a toad house . . . put the opening to the east or west so it has some sun protection. They love bugs :)

GOldfish love bugs too! All earwigs, slugs, etc, seen in my garden get tossed into the pond and instantly devoured.