Can grubs infect hydrangeas? How can I tell if they have grubs? My lawn may have them but I don't know.
Grubs Infecting Hydrangeas
Certified GKH Gardening Expert
If your hydrangeas are looking poorly and you've noticed the grubs in the soil around your plants, as well as your yard, then they can be treated with products containing Bacillus thuringiensis (Bt), a natural bacteria that kill worms without harming plants. Neem oil may be helpful as well. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/lawn-grubs-how-to-get-rid-of-grub-worms.htm, https://www.gardeningknowhow.com/plant-problems/pests/pesticides/using-bacillus-thuringiensis.htm, https://www.gardeningknowhow.com/problems/pests/neem-oil-uses.htm