The number of commercial arborists (out of 68 who responded) that reported use of a particular pesticide in 1982.
| Fungicide | Use frequency | Insecticide | Use frequency |
|---|---|---|---|
| Arbotect | 16 | Acephate | 31 |
| Benomyl | 43 | BT | 26 |
| Bordeaux | 13 | Carbaryl | 53 |
| Captaiol | 2 | Chlordane | 9 |
| Captan | 16 | Chlorpyrifos | 23 |
| Chlorothalonil | 7 | Diazinon | 38 |
| Copper | 3 | Dicofol | 32 |
| Cycloheximide | 6 | Dimethoate | 42 |
| Dinocap | 2 | Disulfoton | 1 |
| Dodine | 2 | Ethion | 1 |
| Ferbam | 9 | Lindane | 9 |
| Folpet | 3 | Malathion | 57 |
| Mancozeb | 10 | Methoxychlor | 18 |
| Maneb | 15 | Oil (dormant) | 46 |
| Streptomycin | 9 | Oxydemeton methyl | 2 |
| Sulfur | 2 | Trichlorofon | 1 |
| Thiram | 10 | ||
| Zineb | 24 |