The Tick Life Cycle: Lyme Disease

Facts about the tick life cycle of Ixodes scapularis, insects that transmit Lyme disease in Eastern regions of the United States and Canada.
By the MOTHER EARTH NEWS editors
April/May 2004
Add to My MSN

This chart depicts the Tick Life Cycle.
Photo courtesy MOTHER EARTH NEWS editors

Content Tools

The Lowdown on Lyme Disease

The Ixodes scapularis ticks that transmit Lyme disease in Eastern regions of the United States and Canada have a two-year life cycle. It begins in early spring, when adult females lay eggs on the ground. The eggs hatch as temperatures warm, and the miniscule larvae feed on mice and other small animals until early fall. They then molt into nymphs and rest through winter in leaf litter, under rocks or woodpiles, or anywhere they can find cover. The following spring, nymphs, which are responsible for the majority of Lyme disease cases in humans because of their small size, emerge. In the fall these nymphs molt into adults. The adults typically climb to tips of grass or onto shrubs to better grab onto deer (or another large mammal) as a place to feed and mate. Once mated, the females drop off, lay eggs, and the cycle begins again.

Subscribe Today - Pay Now & Save 66% Off the Cover Price

Lighten the Strain on the Earth and Your Budget

Mother Earth NewsAt MOTHER EARTH NEWS, we are dedicated to conserving our planet's natural resources while helping you conserve your financial resources. That's why we want you to save money and trees by subscribing through our earth-friendly automatic renewal savings plan. By paying with a credit card, you save an additional $5 and get 6 issues of MOTHER EARTH NEWS for only $12.00 (USA only).

You may also use the Bill Me option and pay $17.00 for 6 issues.

(* indicates a required item)
Canadian subs: 1 year, (includes postage & GST). Foreign subs: 1 year, . U.S. funds.
Canadian Subscribers - Click Here
Non US and Canadian Subscribers - Click Here