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ARS Home » Pacific West Area » Hilo, Hawaii » Daniel K. Inouye U.S. Pacific Basin Agricultural Research Center » Tropical Plant Genetic Resources and Disease Research » Research » Publications at this Location » Publication #353570

Title: Effects of fluopyram on Radopholus similis in anthurium production

item Myers, Roxana
item Mello, Cathy
item BUSHE, BRIAN - University Of Hawaii
item LICHTY, JOANNE - University Of Hawaii
item HARA, ARNOLD - University Of Hawaii
item SIPES, BRENT - University Of Hawaii

Submitted to: Journal of Nematology
Publication Type: Abstract Only
Publication Acceptance Date: 6/12/2018
Publication Date: 12/5/2018
Citation: Myers, R.Y., Mello, C.L., Bushe, B., Lichty, J., Hara, A.H., Sipes, B. 2018. Effects of fluopyram on Radopholus similis in anthurium production. Journal of Nematology. 50:648.

Interpretive Summary:

Technical Abstract: Radopholus similis causes a severe reduction in the size and yield of flowers of Anthurium andraeanum. An application of fluopyram every three months was evaluated in a commercial grower’s field for its effect on populations of R. similis, plant health, and yield of cut flowers. After two applications, cut flower size and yield of A. andraeanum ‘Starlight’ began to increase among treated plants. One year after the initiation of the experiment the average yield increase was 26% compared to the untreated control. Monthly sampling of roots and surrounding cinder indicated nematode populations were lower in treated plants versus untreated controls following the first fluopyram application with an average population reduction of 55% in the first six months of the trial. Following the third application, the trend began to reverse as treated plots had increasing root masses and could support higher nematode populations. More robust roots were observed on the surface of cinder beds along with an increase in foliage production in the fluopyram treatment. Measurements of the canopy cover after one year showed an increase of 30% in leaf mass in fluopyram treated plots compared to untreated controls. Fluopyram applications appear to have potential in mitigating the damage caused by Radopholus similis in anthurium cut flower production.