11. Hence the trekkers are advised to carry bugs repellant creams and thick boots. 12. The only effective repellant is a large dog. 13. Health officials urged people to use insect repellant in the morning or evening hours. 14. Also bring anti-diarrhea, stomach-upset medication, and insect repellant . 15. Some products also include an organic, non-toxic termite and insect repellant . 16. Artificial fox urine, available at hunting-goods stores, also is a repellant . 17. _Use insect repellant that contains DEET. 18. She developed the repellant from nontoxic pheromones, chemicals released by animals to send signals. 19. Police said they later discovered the powder wasn't anthrax, but bug repellant . 20. It was the first ant species discovered to use a negative ( repellant ) pheromone.
