The goal is to prevent the flightless beetle from gaining access to the fruit of the tree and laying eggs under the button.
Best management strategies:
1. Prune the skirts of the trees at least 24" to limit access of the canopy by fuller rose beetles to the trunk. Recheck the skirts during the season to make sure they don't touch the ground. Pruning should be done in early June.
2. Treat the foliage of the tree and/or the ground with 2 or 3 separate insecticide treatments in June, September, and October. We have found that a ground treatment of Brigade works as well as a trunk treatment and is easier to apply. Be careful not to allow any Brigade residues to reach fruit. Effective foliar treatments include Kryocide and Actara. See the educational materials tab at the left for a complete discussion of the efficacy and mrl issues of these insecticides.
Spray Wand Assembly
Specifications for the wand assembly for 12 inch trunks:
1. Use 1/2" metal electrical conduit (pvc pip can be used but the longer lengths may need reinforcement). Lengths are shown in the attached Trunk Spray Wand Measurements.
2. Tee Jet 11002 nozzles.
3. Trigger adapted from a small hand held sprayer.
4. Angle of spray head to handle is 22.5o.
5. Sprayer must have mechanical agitation to keep the Brigade in solution. PSI is adjusted to provide a spray that does not drift or splash onto foliage.