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.
Dragonflies and Damselflies Habitats. Dragonflies and Damselflies lay eggs in flash water where the larva grow. Larvae need fairly precise habitat and sensitive to water pollution. Dragonfly adult is a predator in the sky and preying on flying insects.Larva may spend one to three years in water, depend on species, while adults live only a few weeks.ragonflies and Damselflies lay eggs in flash water where the larva grow. Larvae need fairly precise habitat and sensitive to water pollution. Dragonfly adult is a predator in the sky and preying on flying insects.