Question From: Beaubassin East, New Brunswick, Canada
Q: Our weigela bush has tiny white spots on branches and stems. It doesn't appear to be an insect but whatever it is the plant does not look healthy.
If the spots are fuzzy, your shrub probably has mealy bug. Take a cutting to your independent garden center for an accurate ID and control. Photos will also be helpful. You might also contact the Canadian OSU Extension Agency for control advice http://oces.okstate.edu/canadian/horticulture. Best And Happy Yardening, Nancy