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.
Many types of weevils can burrow into cacti, lay their eggs and cause damage to the plant. The vine weevil is a large gray insect that lays eggs in the late summer.The eggs hatch into white larvae with brown heads. These grubs eat the root of the cactus and then move into the stem, which causes the plant to collapse.Notches on the leaves of a cactus are a signal that vine weevils are present. The agave snout beetle is a black insect that lays eggs in late spring or early summer.he cactus bug is a beetlelike pest that lays eggs inside cacti, such as the prickly pear. Early damage includes small circular spots. Later damage causes larger spots and a dead or pitted appearance. Insecticides might also be useful in treating beetle infestations.