| Herbicide | Trade name | Classificationa | Oral LD | Acute oral | Acute dermal | Remarks |
|---|---|---|---|---|---|---|
| 2,4-D | 2,4-D LVE OSA | G | 375 | Moderate | Low | May cause skin and eye irritation. Has the potential to leach into groundwater. Low volatility esters may become volatile at 90°F and above. Do not apply near desired plants. Application equipment must be cleaned with special materials before applying other pesticides. |
| 2,4-DB | Butoxone, Butyrac | G | 1,960 | Low | Low | May cause skin and eye irritation. Toxic to fish. |
| Acetochlor | Degree, Harness, TopNotch | R5 | 2,690 | Low | Low | Highly toxic to fish and aquatic plants; moderately toxic to aquatic invertebrates; slightly toxic to birds. Acetochlor has the potential to contaminate ground and surface water. |
| Acifluorfen-sodium | Ultra Blazer | G | 1,300 | Low | Moderate | Rain or irrigation within 6 hours after application will reduce efficacy. Irritating to eyes and skin. |
| Alachlor | Lasso Micro-Tech | R5 | 930 | Low | Very low | Can cause eye and skin irritation. Has been detected in ground and surface water. |
| Ametryn | Evik | G | 1,405 | Low | Very low | Moves vertically and laterally due to high water solubility. Do not apply near desired plants. |
| Aminopyralid | Milestone | G | >5,000 | Very low | Very low | |
| Atrazine | Aatrex and others | R12,14 | 1,780 | Low | Very low | Residues may remain in the soil for over 1 year. Has been detected in drinking water samples. Moves vertically and laterally with water. Do not apply near desired plants. A buffer area is required between atrazine application sites and surface water. Mixing/loading set backs are 50 feet from surface water. Application set backs are 200 feet from lakes or reservoirs or 66 feet from points where field surface water enters a perennial or intermittent stream. |
| Benefin | Balan | G | >7,000 | Very low | Low | |
| Bentazon | Basagran | G | 1,100 | Low | Low | May cause eye and skin irritation. |
b G refers to general use, R refers to restricted use. Reasons for restrictions are as follows: R1 = acute oral toxicity; R2 = acute dermal toxicity; R3 = acute inhalation toxicity; R4 = accident history; R5 = ability to cause tumors (oncogenicity); R6 = ability to cause birth defects (teratogenicity); R7 = fetotoxicity; R8 = reproductive effects (not applicable to pesticides recommended in this publication at this time); R9 = effects on birds; R10 = effects on fish or other aquatic life; R11 = effects on terrestrial wildlife; R12 = groundwater contamination potential; R13 = hazardous to nontarget plants; R14 = worker exposure concerns.
c Based on technical product.
a For trade names of herbicide mixtures, see page 2-2
NA— means not available.
Guide to abbreviations
