|Harrison Jr, Howard|
Submitted to: Arthropod Management Tests
Publication Type: Other
Publication Acceptance Date: 11/23/2015
Publication Date: 1/8/2016
Citation: Jackson, D.M., Harrison Jr, H.F. 2016. Evaluation of advanced sweetpotato genotypes for resistance to soil insect pests, 2013. Arthropod Management Tests. V40:1-2. http://www.entsoc.org/pubs/index/html, doi: 10.1093/amt/tsv209.
Interpretive Summary: N/A
Technical Abstract: Two insect susceptible check cultivars (‘Beauregard’ and ‘SC1149-19’), two insect resistant check cultivars (‘Charleston Scarlet’ and ‘Ruddy’), two commercial varieties (‘Covington’ and ‘Liberty’), and 24 advanced genotypes from the USVL sweetpotato breeding program were evaluated for insect resistance in replicated field trials at Charleston, SC, in 2013. All 24 advanced genotypes had significantly less overall insect injury (i.e., higher percentage of undamaged roots), significantly lower wireworm diabrotica systena (WDS) indices, and significantly less weevil damage than did the two susceptible checks. All but six genotypes had significantly less injury from flea beetles than did ‘SC1149-19’ and ‘Beauregard’. These advanced genotypes represent a valuable source of insect-resistant germplasm for use in the sweetpotato breeding program for developing pest-resistant varieties.