Gram-positive ((of bacteria) being or relating to a bacterium that retains the violet stain used in Gram's method). Gram-negative ((of bacteria) being of or relating to a bacterium that does not retain the violet stain used in Gram's method). Hyponyms (each of the following is a kind of bacteria):
Outdoors experts: Keep ticks off by spraying repellent on your clothes. A female deer tick. Shane Wilkinson, camping equipment manager at Bass Pro Shops in the Fingerlakes Mall, said he was among those who mistakenly thought this past winter was going to put a real hurt on the ticks.
1 Permethrin (PermaKill 4Week Tick Killer). 2  Chemical class: synthetic pyrethroid. 3  It is labeled for use against ticks on the lawn. 4  Permethrin is highly effective as a clothing toxicant against ticks as a tick repellent formulation.