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.
Most species attack oak trees. Gall wasps should not be confused with gall midges, a family of gall-making flies. Most species of gall wasps attack specific tissues of the host plant, forming galls, a type of defense response, on roots, stems, twigs, leaves, buds, or flowers.he adults are large for gall wasps, 3 to 4 mm (0.12 to 0.16 in) long, and brownish-red. The large galls can be seen on trees year-round. Oak apples are green when they form in the spring, and they resemble an apple: smooth outside and spongy inside.