Bayer Advanced 12 Month Tree and Shrub Protect and Feed II Concentrate should not harm squirrels or other wildlife in the area if used as directed on the product label. There are no restrictions for using this on a property with a well, however we recommend to keep products at least 10-15 feet away from a well for extra safety. Be sure that you know what kind of borer you are treating since not all borers can be treated with insecticides.
According the product label, if contact is made with skin or clothing while using Bio Advanced 12 Month Tree and Shrub Protect and Feed II Concentrate, you will need to: Remove the contaminated clothing, rinse skin immediately with plenty of water for 15 to 20 minutes, call a poison control center or doctor for treatment advice if needed.
For trees, you will use 1 oz. of Bio Advanced 12 Month Tree & Shrub Insect Control Landscape per inch of distance around the trunk. So yes, if your trunk is 120 inches you would use 120 oz. It will not hurt to apply sooner than a year from the last treatment
Bio Advanced 12 Month Tree and Shrub Protect and Feed - Concentrate contains nutrients along with the insecticide so if you already applied a fertilizer the plants and trees may not need additional feeding. We are not familiar with the previous application including product and amount so cannot say if it is okay to go ahead and use, you want to be sure to not over fertilize.
We are unfamiliar with this type of plant. We recommend that you contact the manufacturer directly for advice. You can call toll-free 1-877-229-3724 or visit their site website at www.BioAdvanced.com
Bayer Advanced 12 Month Tree and Shrub Protect and Feed II-Concentrate is labeled to treat scale on trees. Please be sure to review the product label for complete application instructions.
Whether Bio Advanced 12 Month Tree and Shrub Protect and Feed II Concentrate is the only product that you need is really going to depend on what nutrients are needed and if issues arise with your specific trees. You may try contacting a local master gardener or arborist at a local nursery or cooperative extension office for the best advice on what oaks in your area need.
Bayer Advanced 12 Month Tree and Shrub Protect and Feed II - Concentrate can be used around ornamental trees and shrubs for japanese beetle control but it's only labeled to be applied as a soil drench. If you need something for a foliar application, you can use Talstar P.
Bayer Advanced 12 Month Tree and Shrub Protect and Feed II is labeled for root weevils and can be applied as directed on the product label. Rhododendrons are not specified on the label.
Bio Advanced 12 Month Tree and Shrub Protect and Feed II Concentrate should not affect birds including woodpeckers if you use the product as directed.