Across
- 5. enters through nose
- 8. use, higher toxic and needs special training to use
- 9. must be eaten
- 10. absorbed by the roots and moves throughout the plant
- 11. enters through respiratory system
- 14. kills all vegetation
- 15. the degree of poison in the material
Down
- 1. enters through mouth
- 2. kills only parts of the plant the chemical touches
- 3. use, less toxic and is safe
- 4. after plants emerge
- 6. before plants emerge
- 7. absorbed through the skin
- 12. act on one plant species and not others
- 13. enters through eyes