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ARS Home » Southeast Area » Charleston, South Carolina » Vegetable Research » Research » Publications at this Location » Publication #289567
Title: Evaluation of heirloom sweetpotato cultivars for resistance to soil insect pests, 2011

Author
item Jackson, D
item Harrison Jr, Howard

Submitted to: Arthropod Management Tests
Publication Type: Other
Publication Acceptance Date: 1/10/2013
Publication Date: 10/10/2013
Publication URL: http://www.entsoc.org/pubs/index.html
Citation: Jackson, D.M., Harrison Jr, H.F. 2013. Evaluation of heirloom sweetpotato cultivars for resistance to soil insect pests, 2011. Arthropod Management Tests. Volume 38, Report No. M-6. Online Journal at http://www.entsoc.org/pubs/index.html.

Interpretive Summary:

Technical Abstract: Two insect susceptible cultivars (‘Beauregard’ and 'SC 1149-19'), two insect-resistant cultivars ('Charleston Scarlet' and ‘Ruddy’), and 64 heirloom sweetpotato cultivars were evaluated for insect resistance in replicated field trials at Charleston, SC, in 2011. Twenty-eight genotypes had significantly less overall injury from insects (i.e., higher percentage of undamaged roots) and 26 cultivars had a significantly lower WDS index than did the two susceptible checks (‘Beauregard’ and ‘SC1149-19’). Overall, the highest level of resistance was for the resistant check cultivar ‘Ruddy’, which had 93.1% undamaged roots. All but six genotypes had significantly less injury by flea beetles than did ‘SC1149-19’.