Field Selection of Sweet Potato Lines and Cultivars for Resistance to the Sweetpotato Weevil1
- 1 April 1980
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 73 (2) , 288-290
- https://doi.org/10.1093/jee/73.2.288
Abstract
Resistance of 79 sweet potato lines to Cylas formicarius elegantulus (Summers) in artificially infested fields was studied. The criteria used in evaluating resistance levels were percentage of hills with infested roots, number of adult weevils emerging from roots, percentage of crowns infested, and crown index based on the severity of the infestation. Five lines were found to be resistant for all criteria at both Savannah, GA, and Yoakum, TX. An additional 26 lines were found to be resistant at Savannah, and 17 of those same lines were resistant for one or more of the criteria at Yoakum. Infestation levels were more severe in Yoakum, which may explain the apparent increase in susceptibility.Keywords
This publication has 1 reference indexed in Scilit:
- Resistance of New Sweetpotato Seedlings and Varieties to Attack by the Sweet potato WeevilJournal of Economic Entomology, 1947