Transmission using dodder plants grown
from seed germinated in an insect-proof
greenhouse was performed for about 2
months from a single CFSD symptomatic
source plant of each indicated cassava
genotype to six 2-month-old cassava plantlets
obtained from in vitro culture and to
six 5- to 6-week-old periwinkle seedlings
per trial. The plants were visually inspected
every week for 3 months for the
appearance of symptoms.