Tetrapar
substance and are attached to the body wall of the psyllid nymph. The larvae are ecoparasitic and are located under the nymph of the host. Adults have a black [...] late afternoon, to avoid high temperatures and radiation. Dosage The dosage of Tetrapar depends on climate, crop and psyllid density and should always be [...] black body, pale wings, and yellowish jointed legs. Males measure between 0.4 and 0.6 mm in lenght, with elongated antennae with long, sparse hairs. Famales