Studies on sugar beet mosaic virus isolated from Beni-Sweif Region, their transmitting aphids and chemical composition of sugar beet roots [electronic resource].

Includes references.

A field experiments were carried out in Beni-Sweif region during 2004/200.5 and 200.5/2006 seasons to detect aphid species and population density throughout two plantation dates on eight sugar beet varieties. in addition to their susceptibility to beet mosaic virus infection. All varieties were infested with two species of aphid; Myzus persicae and Aphis fabae. The later insect was more abundant than M persicae. The results assert that aphids have capability to attack all sugar beet varieties. Oscar and Pleno varieties were the highest resistant varieties while Gazelle and Gloria were the highest susceptible varieties for BtMV infection. The infected plants with both aphids and BtMV showed a reduction of root weight percentage ranged from 41.1 to 54.0%.

Summary in Arabic.