Originally Posted by lawn king
Enough already with the fighting!! We had our hottest july on record here in south east massachusetts, so im sure some of the breakthrough is due to not watering and some due to photodecompisition. We had more beetle activity in this area than we have seen in 3 or 4 seasons, in fact i had chafers buzzing around my gardens in norton ma. well into september. What im trying to figure out is are the grubs starting to build an immunity to merit?
If Barry posted rutgers reporting zero resistance issues, then I would say it's most likely a cause of all the factors you listed. But as previously stated (to play devils advocate) sugar cane grubs in FL are not controlled by merit, so I guess resistance is possible.