Incredibly, 2007âs staggering volume is almost 38 percent higher than 2006 and almost double the 2005 figure. The value of the blade market is often estimated simply as a percentage of the turbine market. It is generally assumed that blades account for 15 to 20 percent of the total purchase price of wind turbines.
The two most common species of earthworms in Northern Virginia are the Common Earthworm, or nightcrawler (Lumbricus terrestris) and the Red Earthworm (Lumbricus rubellus). These earthworms were introduced from Europe many years ago.
That said, there are some worm groups that are larger than others such as the earthworm and the inch worm. While there are more than 4,400 different types of worms, there are 2,700 different types or earthworm alone and more than 1,200 species of inch worm.