Effect of Organic Inputs and Solarization for the Suppression of Rhizoctonia solani in Woody Ornamental Plant Production
2019
Fulya Baysal-Gurel | Md Niamul Kabir | Prabha Liyanapathiranage
Soilborne diseases are the most economically significant problem faced by Southern region nursery producers. The goal of this research was to improve Rhizoctonia root rot disease management through the use of soil solarization alone and in combination with biofumigant cover crops&mdash:arugula &lsquo:Astro&rsquo: (Eruca vesicaria ssp. sativa), mustard green &lsquo:Amara&rsquo: (Brassica carinata), and turnip &lsquo:Purple top forage&rsquo: (B. rapa): good quality compost and mustard meal amendment. The experiments were established as on-farm trials in 2016 and 2017 with prevalent Rhizoctonia solani population in propagation beds. All three biofumigant cover crops, arugula &lsquo:Astro&rsquo:, mustard green &lsquo:Amara&rsquo:, and turnip &lsquo:Purple top forage&rsquo: in combination with solarization were able to reduce the Rhizoctonia root rot in flowering cherry &lsquo:Kwanzan&rsquo: plants in nursery propagation beds. Compost amendment increased the flowering cherry rooted cuttings growth (plant weight, root weight, and plant height) compared to other treatments. Soil solarization in combination with cover crops and organic inputs could be used as part of an integrated approach to manage Rhizoctonia root rot in nursery crop propagation beds.
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