Comments on: Springtime Means Tick Time The EPA Blog Tue, 04 Aug 2015 11:45:05 +0000 hourly 1 By: Dr. Charles Kreutzberger Mon, 28 Apr 2014 14:03:44 +0000 When considering a tick repellant, there are a number of good EPA registered repellants on the market. For some unknown reason the CDC website has as its focus DEET, but there are arguably better repellants both from a safety and an efficacy perspective.

For instance consider the EPA registered repellants efficacy and % actives for Tick repellants:

DEET at 25% is approved for 5h protection

Picaridin at 10-20% is approved for 12-14h repellancy – depending on the formulation

By comparison to achive a 10h Tick protection with DEET you need to use 100% DEET

Bottom line here is that the CDC needs to be more telling about the facts and choices people have for Tick repellants. Their website and recommendations are slanted to a repellant that while effective and approved by the EPA, has some very real issues and concerns.

Very strong arguments can be made that Picaridin is a far better choice as a Tick repellant.

By: Gary Fish Fri, 25 Apr 2014 12:26:22 +0000 Guinea hens are not very effective at finding and foraging for really tiny blackleggeed “deer” tick nymphs and therefore are not a very good measure for reducing lyme disease transmission. It is the nymphal ticks the most commonly vector the disease. See

The hens can also be a host for the small ticks and therefore be a potential source of tick population increase.

They will eat a few adult ticks and will keep enclosed areas pretty clean of adults, but it is the myphs at the forest edges that are the real problem.

By: Kristine Milochik Thu, 24 Apr 2014 19:16:47 +0000 How effective are guinea hens in controlling ticks?