| Manufacturer (a) |
Sales
($ million) (a) |
Major
Brands (a) |
Active
Ingredient (a) |
Sales
($ million) (b) |
| Ortho |
2.5 |
Weed-B-Gone |
2,4-D |
1.0 |
| Poison Ivy Killer |
MCPP |
1.0 |
| 2,4,5-T |
0.5 |
| Fenoprop |
0.5 |
| Bensulide |
0.5 |
| Amchem |
0.5 |
Weedone |
2,4-D |
0.2 |
| MCPP |
0.2 |
| Chloramben |
0.1 |
| Swift |
0.5 |
Vigoro, Swift |
2,4-D |
0.2 |
| MCPP |
0.2 |
| Dicamba |
0.1 |
| Occidental |
0.5 |
Best |
2,4-D |
0.2 |
| MCPP |
0.2 |
| Dicamba |
0.1 |
| Other |
4.0 |
Unknown |
Similar to above |
4.0 |
| |
8.0 |
|
|
|
|
Active
Ingredient (c) |
Sales
($ millions) (d) |
Probability
(calculated) (e) |
| 2,4-D |
1.6 |
40% |
| MCPP |
1.6 |
40% |
| 2,4,5-T |
0.5 |
13% |
| Fenoprop |
0.5 |
13% |
| Bensulide |
0.5 |
13% |
| Chloramben |
0.1 |
3% |
|
- Kline (Ramsey and Kollonitsch, 1977). The major brands and active
ingredients associated with "other" manufacturers are unknown.
However, we believe that the "other" manufacturers used the
same active ingredients, in the same proportions, as the knowns.
- Based
on judgment. For example, we judged that 40% of the Amchem Weedone products
contained 2,4-D (40% of $0.5 million = $0.2 million), 40% contained MCPP,
and 20% contained chloramben.
- Eliminating duplicates.
- Combining
active ingredient sales across all products in which it appears.
- Active
ingredient sales divided by total sales by manufacturers whose products
and active ingredients are known ($4 million).
|