Root aphids on shrubs?
Hi I am seeing shrubs get sick. Yellow and brown leaves, lack of new growth. First one bush last year (some variety of Bay?) this year its worse. Scary thing is the bush next to it (spruce or yew?) seems to be dying suddenly this spring after a decent season last year. No insects found on either under a microscope. Both were well established plants. Adjacent hemlocks were wetted with “Bonide systemic insect control” 2 seasons ago. 3rd bush (another spruce/yew) is thriving even tho it abuts and touches infected neighbor! Roots show thin white fibers when I made a shallow inspection of the soil. Surrounding Azeleas blooming beautifully and yard appears quite healthy with noted exceptions. Some small trees were removed recently so sunlight is more plentiful. Drainage seems ok. I am left wondering if the roots are being attacked. PlanetNatural.com suggests beneficial nematodes. What to do? Running out of time! Please help Sincerely, Rich T