Video buyer's guide to string trimmers

String trimmers are ideal for dealing with grass, weeds, and brush in areas your mower or tractor can't reach, keeping your property tidy and eliminating inviting homes for insects, rodents, and other critters.

If you're in the market for a new string trimmer for next spring or for the last bit of yard work you'll do this fall, check out our free buyer's guide (ratings available to subscribers) and watch the video from our recent tests of string trimmers (right).

The video features advice from Peter Sawchuk, a senior project leader in our Tech department and our go-to guy for testing outdoor power equipment, who discusses the basic types of trimmers and the pros and cons of straight and curved shafts.

Sit down longer with Peter as I get to do, however, and you can get additional details that can make a big difference in how much time you spend on your trimming chores. Take two- and four-cycle. Four-cycle engines are touted as cleaner (less smoke) and more convenient (no need to mix of oil and gas) than two-cycle engines. But results from the four such trimmers we tested demonstrate that four-cycle technology in string trimmers isn't the panacea you might think.

Another consideration relates to the head housing the monofilament line, which does the actual trimming. Fixed-head units use two or more precut pieces of line. Bump-feed models let out line when you bump the head to the ground. And automatic models release more line by themselves when needed.

As part of our Spring 2010 report on string trimmers, we'll look at models whose very designs tend to wear out line sooner than you might expect, others whose manufacturers have learned how to keep tall growth from wrapping around the shaft, and one that couldn't seem to keep its head together.—Ed Perratore | e-mail | Twitter | Forums | Facebook

Essential information: Check out our "Fall Lawn and Yard Checklist" for details on tending to all facets of your property, and keep your power equipment in shape with our "End-of-Season Lawn-Equipment Guide." You'll find other tips on our Fall Cleanup Guide page.