Sezonowe zmiany w dynamice populacji larw Anopheles labranchiae atroparvus v. Thiel, 1927 w okolicach Gdańska

Several-years' studies on the dynamics of occurrence of Anopheles labranchiae atroparvus larvae in the environs of Gdańsk proved it to have been conditioned by the external temperature, abundance of atmospheric precipitations and surface of the breeding ground. Most larvae were collected in July and August, those of the Ist instar prevailing; they carne from the most fertile summer generations of Iemales. The occurrence of the IVth instar larvae in reservoirs was followed by hatching of mature forms only a few days later. Most larvae in the IVth instar were noted in May, as well as August or September. When controlling the Anopheles larvae it should be considered that the best period for the control is May and August or September, as most of the IVth instar larvae are then in the breeding ground.