Lower back tightness can cause muscle twitching, pain and reduced range of motion. Photo Credit Dirima/iStock/Getty Images. Lower back muscle tightness is the cause of a muscle spasm. This can be brought on by a strain, overuse or muscle weakness, according to BetterMedicine.com. If your lower back muscles lack strength, and a stronger back muscle pulls on this weak muscle, it can create tightness or pain. While lower back tightness can be managed at home, occasionally medical intervention is needed to treat this common condition. Rest your lower back muscles.
Wasp and Scale Insects Help Control Giant Reed. An arundo gall wasp deposits eggs into the main stem of a giant reed. (Image by USDA/ARS) The release of tiny insects to combat the invasive weed giant reed is paying off, according to a recent U.S. Department of Agriculture (USDA) study.
The slimy, gelatinous drain and sewer walls contain from 30 to 200 drain fly eggs, which hatch at room temperature within 32 to 48 hours. As the larvae feeds, they mature in 9 to 15 days. Drain flies start out as oblong eggs, pale, elongated larvae with a suction cup under their bodies, pupae, and then adults.