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You searched for: Subject cultivars Remove constraint Subject: cultivars Subject Cylas formicarius elegantulus Remove constraint Subject: Cylas formicarius elegantulus Subject term insect pests Remove constraint Subject term: insect pests
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1. Sweetpotato weevil (Cylas spp.) resistance in African sweetpotato germplasm

Author:
Harriet Muyinza; Herbert L. Talwana; Robert O.M. Mwanga; Philip C. Stevenson
Source:
International journal of pest management 2012 v.58 no.1 pp. 73-81
ISSN:
1366-5863
Subject:
Curculionidae; Cylas formicarius elegantulus; cracking; cultivars; field experimentation; germplasm; insect pests; laboratory experimentation; landraces; plant breeding; progeny; resistance mechanisms; rooting; roots; screening; soil; sweet potatoes; Africa
Abstract:
... Host-plant resistance could be a useful tool for managing the weevils Cylas puncticollis and C. brunneus, which are major insect pests of sweetpotato in Africa. There is currently little information on existing resistance mechanisms against Cylas spp. in African cultivars, except where lower levels of weevil damage were attributed to escape due to deep rooting and reduced soil cracking, limiting t ...
DOI:
10.1080/09670874.2012.655701

2. Insect Resistance in Traditional and Heirloom Sweetpotato Varieties

Author:
Jackson D. Michael; Harrison Howard F.
Source:
Journal of economic entomology 2013 v.106 no.3 pp. 1456-1462
ISSN:
0022-0493
Subject:
Agricultural Research Service; Chaetocnema confinis; Cylas formicarius elegantulus; Diabrotica; Elateridae; Phyllophaga; Systena; beetle infestations; breeding programs; cultivars; field experimentation; genotype; germplasm; insect larvae; insect pests; insect resistance; roots; soil insects; sweet potatoes; South Carolina
Abstract:
... Fifty-nine sweetpotato cultivars, including 16 heirlooms, 11 near-heirlooms (developed in the 1960s and 1970s), 19 cultivars from the 1980s, and 13 modern varieties (since 1990), were evaluated for resistance to soil insects in field experiments during 2010–2011 at the U.S. Department of Agriculture-Agriculture Research Service, U.S. Vegetable Laboratory (USDA-ARS, USVL), Charleston, SC. These exp ...

3. Host preference of sweetpotato weevil, Cylas formicarius elegantulus (Summers): an example of Hopkins’ host-selection principle

Author:
Jie Chen; Michael J. Stout; Julien Beuzelin; Tara P. Smith; Don LaBonte; Jeff M. Murray; Jeffrey A. Davis
Source:
Arthropod-plant interactions 2019 v.13 no.5 pp. 779-786
ISSN:
1872-8855
Subject:
Cylas formicarius elegantulus; Ipomoea batatas; adults; cultivars; females; growers; host preferences; insect pests; insect resistance; larvae; oviposition; phytophagous insects; rearing; roots; summer; sweet potatoes
Abstract:
... Sweetpotato weevil (SPW), Cylas formicarius elegantulus (Summers), is the most damaging root-feeding insect of sweetpotato, Ipomoea batatas (L.) Poir., worldwide. Larval feeding on storage roots reduces yield and induces terpene production, rendering roots inedible. Selection of sweetpotato cultivars with resistance to insect pests has been carried out for over a century but no high yielding, prod ...
DOI:
10.1007/s11829-019-09704-0