ISSN: 1659-2751



Evaluation of an Organic Treatment for Post Harvest Control of Pineapple (Ananas comosus (L) Merr) Black Rot


The objective of this study was to assess the effect of two organic treatments for the control of pineapple black rot at EARTH University. The study was developed in two steps: Experiment 1, which aimed to determined the potential of citrus seed extracts and peroxyacetic acid as compared to a commercial treatment and a control treatment, and Experiment 2, which assessed several doses of citrus seed extracts compared to a commercial treatment and a control treatment. Pineapple fruits were treated according to the standard commercial procedure and stored in a cooling chamber, which was modified to simulate the processes of transportation, distribution, and shelf life. After the simulation process, pineapples were evaluated to determine the percent weight loss and severity of black rot. At the end of the 15-day storage period, there were no significant differences in percent weight loss between any of the treatments. There was no significant difference between the organic and standard fungicide treatment for black rot severity and both treatments had significantly less black rot than the untreated control. Results suggest that citrus extracts offer an organic alternative for management of post harvest pineapple black rot.

Key words: biological fungicide, organic, pineapple, post-harvest, rot, Thielaviopsis paradoxa.

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