Chlorotic streak transmission and crop dynamics research
Date
2016Metadata
Show full item recordAbstract
CHLOROTIC STREAK DISEASE (CSD) is transmitted in water, specifically drainage, flood
or irrigation water. Research showed that transmission in water was increased by the
addition of oxytetracyline (Terramycin). A two-hour inoculation period, where roots
were dipped in infected hydroponic solution containing the antibiotic, was sufficient to
lead to significant disease levels in test plants grown in a hydroponic system. A
hydroponic system incorporating no water circulation (still-hydroponics) was found
more effective than one where the solution was regularly circulated. Monitoring of the
disease at field sites showed that disease levels build up over time and that different
lengths of inundation associated with flooding events may lead to uneven distribution of
the disease in a commercial crop.