Cowpea Aphid Aphis craccivora Koch as Insect Vector of Faba Bean Necrotic Yellow Virus (FBNYV) on Broad Bean Plants.

Abstract

Ability of Aphis craccivora Koch to transmission of faba bean necrotic yellow virus (FBNYV) on broad bean plants was studied under laboratory conation. These studies were carried out in the laboratory of plant protection institute, Zagazig. The result show that the acquisition threshold feeding periods were ranged between 60 -120 min. Incubation periods in A. craccivora ranged between 120-160 min., while in celery plants was 12 -18 days.