Maybe some good news for our Japanese Beetles friends
I was looking around to see if there was any info on cold temps and its impact on Japanese Beetle populations and found the following:
"Although grubs migrate down to avoid freezing temperatures, some mortality may still occur over the winter if rapidly changing conditions prevent the grubs from moving far enough to escape lethal environmental conditions. For example, sudden cold spells with little snow cover often cause high mortality.
A heavy snow and thick sod cover usually result in grubsÃ¯Â¿Â½ being closer to the surface and surviving with only low mortality. They tend to move deeper in relatively barren soil. Lack of substantial snow cover on barren soil typically results in extremely high grub mortality. Japanese beetle grubs are killed at soil temperatures near 15Ã¯Â¿Â½F and die when soil temperatures are consistently around 32Ã¯Â¿Â½F for 2 months."
With no snow cover this year and a week of lows in the negative numbers and highs barely above zero, I will be curious to see if I see less of them next summer.
Has anyone noticed that in past years?