Identification and control of post-harvest rot of pumpkin (Cucurbita pepo L.) in Hong, Adamawa State

Abstract

Pumpkins (Cucurbita pepo) are grown all around the world for a variety of reasons ranging from agricultural purposes to commercial and ornamental sales. The pathogens causing the rot of pumpkin in the world include fungi, bacteria, and viruses. Three hundred and sixty-six (366) fruits of pumpkins were studied in Pela, Gaya and Kulinyi districts of Hong Local Government Area of Adamawa State. The diseased samples (fruits) were randomly purchased. Of all the districts visited, Kulinyi has the highest percentage of disease samples (43.82%) while the least is Gaya district with 21.35%. Potato Dextrose Agar (PDA) was used for the isolation of pathogens and these gave Rhizopus stolonifer, Aspergillus niger, Aspergillus flavus, and Phytophthora capsici. All the fungal isolates exhibited different degree of pathogenic effect on the pumpkin fruits. The pathogens are susceptible to treatment both in-vitro and in-vivo control trials with wood ash and mango leaf at p ≤ 0.05. Inhibition improved with increased in concentration of the wood ash and mango leaf. Rice chaff treatment equally proved worthwhile with significant inhibition compared to the control at p ≤ 0.05.

Morphological and Molecular Diversity of Ginger (Zingiber officinale Roscoe) Pathogenic Fungi in Chilga District, North Gondar, Ethiopia

“…Species of Aspergillus and Penicillium were reported as the leaf spot and ginger rhizome spoilage diseases (Berza et al, 2012;Meenu and Kaushal, 2017;Mekuria and Alemu, 2020). They were also reported to be the cause of disease in other plants (Photita et al, 2005;Louw and Korsten, 2014;Kazi et al, 2019). The devastating case of ginger bacterial wilt, reported in Ethiopia, was another case of decline in production (Kifelew et al, 2015;Hunduma et al, 2016).…”

New host-pathogen associations of horticultural crops in the south-east of Spain

“…La gravedad de la enfermedad va a depender de la capacidad que tenga el patógeno de superar el mecanismo de defensa natural del vegetal, o bien de la capacidad que tenga la fruta de inducir resistencia ante la infección (Kazi et al, 2019b). Se justificó que las poligalacturonasas producidas en fresas infectadas con R. sexualis eran la principal causa de descomposición y ablandamiento de la fruta (Dakin y Tampion, 1968;Archer y Fielding, 1979).…”