By Kathleen Cue, Nebraska Extension Horticulture Educator
Despite winter and spring conditions that we hoped could thwart them, the Japanese beetles are at it again. They fall on us as we mow beneath trees, eat our hard-won fruits as they multi-task, and drown in the dog’s water dish. Here are some important considerations:
▪Japanese beetles do lay their eggs in the soil. Managing Japanese beetle grubs to stop the damage to turfgrass IS effective. Targeting grubs IS NOT an effective means of damage prevention to trees, roses, and grape vines. This is because there are ditches, fence lines and creek banks that are never treated for Japanese beetle grubs and emerging adults will always fly to where there is food.