Species, location, concentration range, and dbh (diameter at breast height) range of trees injected with dikegulac and maleic hydrazide in 1977.
| Species | Locationa | Concentration range (g/liter) | dbh range (cm) | |
|---|---|---|---|---|
| Dikegulac | MH | |||
| American Sycamore | Philadelphia, PA | 3.0-15.0 | 13.3-67.5 | 24.1-59.7 |
| Silver maple | Delaware, OH | 15.0-75.0 | 67.5-112.5 | 13.7-26.7 |
| Red Oak | Lorain, OH | 75.0-187.5 | 112.5-281.5 | 17.0-39.1 |
| Shamel ash | Hayward, CA | 9.0-45.0 | 22.5-112.5 | 30.5-74.9 |
↵a Trees in Philadelphia and Hayward were located along the road, while those in Delaware and Lorain were situated in a natural woodstand.