Advances in Crop Science and Technology
Open Access

Ginger; Fungicides; Phylostica leaf spot; Incidence’; Severity

Introduction

Ginger Zingibe rofficinale Rosc is an important spice crop grown in tropical and subtropical countries including Ethiopia [1]. It is produced both for commercial and home use. In Ethiopia, more than 70 percent of the total ginger production is contributed from SNNPR especially Boloso-Bombe of Wolaita Zone and Hadaro-Tunto of Kambata- Tambaro Zone [2]. But, since 2012 the first ginger wilt disease epidemic was reported and ginger disease is becoming the threat of national ginger production as a whole [3]. Ralistonia solanacearum biovar 3 is reported as the cause for the epidemic of ginger wilt in Ethiopia. Dake 1995 reported that, ginger is affected with about 24 diseases. Tomas et. al,. 2020 also reported that ginger leaf spot caused by Phyllostica zingiberi as potential ginger production challenges in Boloso-Bombe district of Wolaita and Hadaro-Tunto district of Kambata-Tambaro Zones; in addition to R. solanacearum which was reported previously in different parts of the country. Therefore; the study was carried out to evaluate the effectiveness of fungicides for management of phylostica leaf spot disease of ginger [4].

Materials and Methods

The experiment was conducted at Areka and Bombe kebele of Wolaita zone during 2019 cropping season. The treatments included Matco 2.5kg/ha, Mancozeb 2.5kg/ha, Redomil 3kg/ha, Bordeaux mixture 1.81 kg/ha, Dipping with trust symoccop 1kg/200L Water (15min) and Untreated. Ginger variety “(Boziab’’ was used for planting. The experimental was laid out randomized complete block design (RCBD) with thee replications. All other agronomic practice kept constant except treatment. The response of treatments to phylostica leaf spot disease of ginger under natural infestation was taken in terms of incidence and severity and the data was analyzed using SAS software (version 9.1) and means were separated at 5% of level of significance.

Results and Discussion

In this study application of the Matco, Mancozeb, Redomil, Bordeaux mixture, Dipping with trust symoccop 15min and untreated were not have effect and were not significantly different in terms number of finger per hill, average palm length, fresh weight of three hills and Fresh weight of ginger per plot at Areka condition. But Matco and Redomil fungicides had significant effect and different in terms of finger per hill, average palm length, fresh weight of three hills and Fresh weight of ginger per plot at Bombe condition (Tables 1 and 2).

Note: Nofp= number of finger per hill, AvpII= average palm length, Fw3hi=fresh weight of three hills, Fwgp=Fresh weight <p>Table 1: Mean values of number of finger per hill, avpII= average palm length, fresh weight of three hills and Fresh weight of ginger per plot at Areka.</p>of ginger per plot and NS=no significant difference.

Table 1: Mean values of number of finger per hill, avpII= average palm length, fresh weight of three hills and Fresh weight of ginger per plot at Areka.

Table 2: Mean values of number of finger per hill, average palm length, fresh weight of three hills and fresh weight of ginger per plot at Bombe.

Conclusion and Recommendation

Number of finger per hill, average palm length, fresh weight of three hills and fresh weight of ginger per plot has no significant difference among fungicide sprayed treatments at Areka; however there was relatively significant difference of these parameters at Bombe on some Redomil and Matco sprayed treatments. However, there is quantitative variation among treatments, the result of disease severity showed statistically non-significant. Therefore, the alternative use of fungicides of Redomil and Matco can minimize ginger phylostica leaf spot disease and rhizome yield loss due to the disease. Future research should be directed towards frequency and time of application of Matco and Redomil for the better management of the phylostica leaf spot disease of ginger.

Acknowledgement

The Authors acknowledge Areka Agricultural Research Center and Southern Agricultural Research Institute (SARI) for the assistances during research period.

Competing Interest

Authors declare that they have no competing interests.

1. Kassa B, kifelew H, Hunduma T (2016) Status of Ginger Wilt and Identification of the Causal Organism in Southern Nations Nationality and People Sates of Ethiopia. International Journal of Research Studies in Agricultural Sciences (IJRSAS) 2 (4): 1-11.

Google Scholar, Crossref

2. Dake GN (1995) Diseases of Ginger Zingiber officinale Rosc and their Management.Journal of Spices and Aromatic Crops 4 (1): 70-73.

Indexed at, Google Scholar

3. Geta E, Kifle A (2011) Production, processing and marketing of ginger in Southern Ethiopia. Journal of Horticulture and Forestry 3(7): 207-213.

Indexed at, Google Scholar    

4. Doharoo NP, Kansal Sand, Ahluwalia N (2012) Status of soft rot of ginger Zingiberofficinale Rosc. department of vegetable science Dr. Y.S. Parmar University of horticulture and Forestry 68(1): 93-96.

Google Scholar