ARCHIVES
VOL. 5, ISSUE 6 (2020)
New report of pod rot of moringa in Sri Lanka caused by Drechslera hawaiiensis and potential fungicides for its control
Authors
MSW Fernando, WART Wickramarachchi
Abstract
Moringa is not affected by any serious pests and diseases; but, can observe minor disease with the unfavorable climatic conditions. These diseases became more common with the expansion of the moringa cultivation. However, there are no reports on pod rot associated with moringa cultivation in Sri Lanka. The objectives are to isolate and characterize pathogens by morphological characterization and determine its chemical control measures. Fungal isolation was done from diseased moringa pods collected throughout the country. Isolates were identified based on their morphological characteristics such as conidia morphology, colony appearance, growth rate. Brown color patches on the pods, then splitting, and rotting the pods with the maturity have reduced the economic yield of the moringa seed industry have been observed. Based on morphological features and fungal colony characters the pathogen was identified as Drechslera hawaiiensis (M.B. Ellis) and pathogenicity was tested using Koch's postulates method. Subsequently, four fungicides were tested in-vitro. The best treatment was Tebuconazole 250 g/l EW at the rate of 3.5 ml/10l among the in-vitro tested fungicides in this study. Follow that; contact fungicides (Mancozeb 75% WG at the rate of 20g/10l, Propineb 70 WP at the rate of 20g/10l, Fluazinam 500 g/l SC at the rate of 10ml/10l) which partially controls the pathogen in this study can be alternatively used with seven to ten days intervals until 14 days to harvest. Maintaining of field sanitation must take place.
Download
Pages:65-69
How to cite this article:
MSW Fernando, WART Wickramarachchi "New report of pod rot of moringa in Sri Lanka caused by Drechslera hawaiiensis and potential fungicides for its control". International Journal of Advanced Scientific Research, Vol 5, Issue 6, 2020, Pages 65-69
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.
