Management of Pectobacterium carotovorum infections in potatoes (Solanum tuberosum L.) using Tagetes minuta and Capsicum frutescens extracts

Journal Title: Journal of Agricultural and Crop Research - Year 2017, Vol 5, Issue 5

Abstract

Potato experiences losses caused by Pectobacterium carotovorum, in the field and after harvest. The study was carried out to determine the use of Tagetes minuta and Capsicum frutescens extracts in the management of blackleg and soft rot in potatoes caused by P. carotovorum bacteria. Aqueous extracts of T. minuta and C. frutescens each at 40, 30 and 20% concentrations were tested against P. carotovorum in potatoes with copper oxychloride and water as the positive and negative controls respectively. Data was collected on blackleg incidence and severity on potato plants (in the field), soft rot incidence and severity on tubers (at harvest) and postharvest percent tuber rots. Plants treated with T. minuta extracts and copper oxychloride showed significantly low disease incidence and severity compared to those treated with C. frutescens and water. The potato plants treated with 40 and 30% T. minuta; and copper oxychloride recorded low disease symptom development (2 plants per plot) and severity of 40 to 54% while those treated with water and C. frutescens showed high disease symptom development (4 plants per plot) and severity of 57 to 93%. The percent tuber infections significantly differed among the treatments. Copper oxychloride and T. minuta recorded the lowest percent postharvest infections of 6.5 to 12.11% while C. frutescens had high infections of 40 to 95%. T. minuta had antibacterial activity against P. carotovorum and therefore it can be used in the management of blackleg and soft rot in potatoes. It is locally available and gets rapidly degraded with no persistence and bio-accumulation in the environment, a major problem associated with synthetic agrochemicals.

Authors and Affiliations

Nyamari Jackline Kwamboka, Wolukau Joseph Ngwela, Gesimba Morwani Robert

Keywords

Related Articles

Leaf physiology and fruitfulness of grapevines (V. vinifera L.) as affected by rootstock use and sustained water deficit

Global climate change has forced researchers to improve sustainable strategies to efficiently use limited water sources. In this scope, the use of tolerant rootstocks and deficit irrigation are two essential issues. The...

Evaluating the CERES-Rice model under dry season irrigated rice in Bangladesh: Calibration and validation

Crop Environment Resource Synthesis-Rice (CERES-Rice) model was calibrated and validated for major rice varieties suitable for growing in the dry season. Yield performances for BRRI dhan28, BRRI dhan29 and BRRI dhan58 we...

The response of two naked barley varieties (Hordeum vulgare L.) to four phosphorus fertilizer levels

The objective of this study was to determine the effect of phosphate fertilization on the biological and grain yield and to identify the optimum dose generating the best performance of these two varieties, which had extr...

Morphological characterization and agronomic performances of cashew (Anacardium occidentale L.) accessions from Benin

Cashew tree is a multi-purpose fruit species in Benin. The aim of this study was to evaluate the agro-morphological diversity of the cashew varieties for their better management and utilization in crop improvement. For t...

Caste-wise differences in livelihood activities that affected adaptation against extreme weather events and climate variability

This research investigated how livelihood activities of different castes of people within a community forest user group at two sites (Laxmi Mahila CF and Jalbire Mahila CF) in Gorkha district of Nepal adapt with local we...

Download PDF file
  • EP ID EP354500
  • DOI -
  • Views 267
  • Downloads 0

How To Cite

Nyamari Jackline Kwamboka, Wolukau Joseph Ngwela, Gesimba Morwani Robert (2017). Management of Pectobacterium carotovorum infections in potatoes (Solanum tuberosum L.) using Tagetes minuta and Capsicum frutescens extracts. Journal of Agricultural and Crop Research, 5(5), 77-84. https://europub.co.uk/articles/-A-354500