Show simple item record

dc.contributor.authorMalaka, Samuel Musime
dc.contributor.authorAlwora, Getrude Okutoyi
dc.contributor.authorBonuke, Shem Nchore
dc.date.accessioned2021-09-14T06:53:25Z
dc.date.available2021-09-14T06:53:25Z
dc.date.issued2021
dc.identifier.citationMalaka S. M, Alwora G. O, Bonuke S. N. Efficacy of Two New Fungicides Against Colletotrichum Kahawae Infecting Coffee in Kenya. Curr Agri Res 2021; 9(2).. doi : http://dx.doi.org/10.12944/CARJ.9.2.03en_US
dc.identifier.issn2347-4688
dc.identifier.urihttps://www.agriculturejournal.org/volume9number2/efficacy-of-two-new-fungicides-against-colletotrichum-kahawae-infecting-coffee-in-kenya/
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/22464
dc.descriptionA research article published in Current Agriculture Research Journalen_US
dc.description.abstractCoffee Berry Disease(CBD) caused by Colletotrichum kahawae is a destructive fungal disease of coffee in Kenya, leading to a loss of about 75%. This study aimed to assess the In Vitro efficacy of two fungicides:- CRI 1 (Pyraclostrobin 150 g/L + Fluxapyroxad 75 g/L) and CRI 2 (Pyraclostrobin 128 g/Kg + Boscalid 252 g/Kg) against C. kahawae using poisoned food technique on Potato Dextrose Agar. A total of 170 coffee berries with C. kahawae symptoms were purposively collected from both sprayed and unsprayed plots. Ten rates of each of the two fungicides were assessed ranging from 0.01% to 0.1% at an interval of 0.01%. Two commercial standard fungicides Pyraclostrobin 250 g/L at 0.04% and Tebuconazole 200 g/L + Trifloxystrobin 100 g/L at 0.1% were used as positive controls. Fungal inoculum in PDA media devoid of the fungicide acted as the negative control. Data on colony diameter was collected after every 24 hours for 13 days. Analysis of Variance (ANOVA) of the data on colony diameter was done using CoStat software version 6.400. The results revealed that all the rates of CRI 1 and CRI 2 fungicides controlled the colony diameter of C. kahawae compared to the control treatment. CRI 1 fungicide suppressed the growth of C. kahawae even at the lowest concentration of 0.01% with a percentage control of 64.74 %. The highest concentration of 0.1% had a percentage control of 66.15% . CRI 1 is more effective in controlling C. kahawae since it controls the fungus at a rate even lower than Pyraclostrobin 250 g/L which had a percentage control of 66.10 at a recommended rate of 0.04% and Tebuconazole 200 g/L + Trifloxystrobin 100 g/L fungicides which had a percentage control of 65.76 at a recommended rate of 0.1%. CRI 1 also hade a better percentage control as compared to CRI 2. CRI 2 had a percentage control of 54.63% at the highest rate of 0.1% and a percentage control of 35.60% at the lowest rate of 0.01% . Further studies on CRI 1 and CRI 2 fungicides should be carried out for yield assessment in the field.en_US
dc.description.sponsorshipKenya Agricultural and Livestock Research Organization -Coffee Research Institute (KALRO-CRI)en_US
dc.language.isoenen_US
dc.publisherCurrent Agriculture Research Journalen_US
dc.subjectBoscaliden_US
dc.subjectCoffeeen_US
dc.subjectColletotrichum Kahawaeen_US
dc.subjectEfficacyen_US
dc.subjectFluxapyroxaden_US
dc.subjectFungicideen_US
dc.subjectPoisoned Food Techniqueen_US
dc.subjectPyraclostrobinen_US
dc.titleEfficacy of Two New Fungicides Against Colletotrichum kahawae Infecting Coffee in Kenyaen_US
dc.typeArticleen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record