Phenology of the Black Bean Aphid (Aphis fabae Scopoli)

Abstract

Black bean aphid (Aphis fabae Scopoli), which are dangerous pests of beet, were studied in 2015-2021 in the farms and surrounding bio and agrocoenosis of the Mil-Mugan economic region of Azerbaijan. As a result of the conducted studies, it was found that Aphis fabae gives up to 15 generations in this region. 10-12 of them have increased in beetroot agrocoenosis and are reproducing, so in the result, farms are seriously damaged. At the same time, it was determined that if population density and the physiological state of the plant play the main role in the formation of different morphs of this pest in the spring and summer generations, low temperature and short photoperiod are the main factors in the formation of autumn morphs.