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You searched for: 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. Effects of X-ray irradiation on male sperm transfer ability and fertility in the sweetpotato weevils Euscepes postfasciatus (Coleoptera: Curculionidae) and Cylas formicarius (Coleoptera: Brentidae)

Author:
Norikuni Kumano; Dai Haraguchi; Kaori Tsurui-Sato
Source:
Applied entomology and zoology 2018 v.53 no.4 pp. 485-492
ISSN:
0003-6862
Subject:
Cylas formicarius elegantulus; Euscepes postfasciatus; X-radiation; gamma radiation; insect pests; irradiation; male sterility; males; physical properties; spermatozoa; sterile insect technique; Ryukyu Archipelago
Abstract:
... Gamma radiation from isotopic sources has been used in sterile insect technique (SIT) programs worldwide, but it might be difficult to continue using these sources in future SIT programs because of social issues. Therefore, an alternative sterilization source to gamma rays, such as X-rays, needs to be developed. The physical properties of radiation are different between gamma rays and X-rays: for ...
DOI:
10.1007/s13355-018-0578-4

2. 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

3. Effects of Irradiation Dose on Sperm Production, Insemination, and Male Mating Possible Period in the Sweetpotato Weevil (Coleoptera: Brentidae)

Author:
Satoshi Hiroyoshi; Takayuki Mistunaga; Tsuguo Kohama; Gadi V P Reddy
Source:
Journal of economic entomology 2018 v.111 no.3 pp. 1151-1156
ISSN:
1938-291X
Subject:
Curculionidae; Cylas formicarius elegantulus; adults; insect pests; insemination; irradiation; males; spermatozoa; spermiogenesis; sterile insect technique; survival rate; sweet potatoes
Abstract:
... The sterile insect technique (SIT) has been used for the control or eradication of target insect pests. To successfully apply SIT, it is very important to clarify the effect of irradiation on male reproduction in the target pest, because their mating and spermiogenesis abilities affect the success of eradication program. The sweetpotato weevil, Cylas formicarius (Fabricius) (Coleoptera: Brentidae) ...
DOI:
10.1093/jee/tox363

4. Identification of relevant non-target organisms exposed to weevil-resistant Bt sweetpotato in Uganda

Author:
R. J. Rukarwa; S. B. Mukasa; B. Odongo; G. Ssemakula; M. Ghislain
Source:
3 Biotech 2014 v.4 no.3 pp. 217-226
ISSN:
2190-572X
Subject:
Bacillus thuringiensis; Cylas formicarius elegantulus; Hymenoptera; beneficial arthropods; ecosystems; expert opinion; feeding behavior; financial economics; honey; honey bees; insect pests; insecticidal proteins; nontarget organisms; parasitoids; pest control; pollinators; predators; production technology; sweet potatoes; transgenic plants; Uganda
Abstract:
... Assessment of the impact of transgenic crops on non-target organisms (NTO) is a prerequisite to their release into the target environment for commercial use. Transgenic sweetpotato varieties expressing Cry proteins (Bt sweetpotato) are under development to provide effective protection against sweetpotato weevils (Coleoptera) which cause severe economic losses in sub-Saharan Africa. Like any other ...
DOI:
10.1007/s13205-013-0153-1
PubMed:
28324435
PubMed Central:
PMC4026458

5. 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 ...

6. 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

7. Is Elytral Color Polymorphism in Sweetpotato Weevil (Coleoptera: Brentidae) a Visible Marker for Sterile Insect Technique?: Comparison of Male Mating Behavior

Author:
Shiromoto, Keiko; Kumano, Norikuni; Kuriwada, Takashi; Haraguchi, Dai
Source:
Journal of economic entomology 2011 v.104 no.2 pp. 420-424
ISSN:
0022-0493
Subject:
Curculionidae; Cylas formicarius elegantulus; artificial selection; behavior change; color; dyes; elytra; inbreeding depression; insect pests; males; mating behavior; monitoring; sterile insect technique; survival rate; Japan
Abstract:
... The sterile insect technique (SIT) is widely used for suppressing or eradicating target pest insect populations. In the eradication programs using the SIT, a large number of sterile insects are marked and released in the field. In Japan, Cylas formicarius (F.) group (Coleoptera: Brentidae) weevils are marked with a fluorescent powder dye to monitor the progress of such programs. However, this moni ...
DOI:
10.1603/EC10341
PubMed:
21510188

8. Prolongation of the effective copulation period by fractionated‐dose irradiation in the sweet potato weevil, Cylas formicarius

Author:
Norikuni Kumano; Takashi Kuriwada; Keiko Shiromoto; Dai Haraguchi; Tsuguo Kohama
Source:
Entomologia experimentalis et applicata 2011 v.141 no.2 pp. 129-137
ISSN:
0013-8703
Subject:
Curculionidae; Cylas formicarius elegantulus; copulation; ecology; females; gamma radiation; germ cells; insect pests; irradiation; longevity; male sterility; males; reproductive performance; somatic cells; sterile insect technique; summer; Ryukyu Archipelago
Abstract:
... The sterile insect technique (SIT), based on the principles of population and behavioral ecology, is widely used to suppress or eradicate target pest insect populations. The effectiveness of SIT depends on the ability of released sterile males to mate with and inseminate wild females; however, the use of gamma radiation to induce sterility negatively affects both somatic cells as well as reproduct ...
DOI:
10.1111/j.1570-7458.2011.01181.x

9. Assessment of Effect of Partial Sterility on Mating Performance in Sweetpotato Weevil (Coleoptera: Curculionidae)

Author:
Kumano, N.; Kuriwada, T.; Shiromoto, K.; Haraguchi, D.; Kohama, T.
Source:
Journal of economic entomology 2010 v.103 no.6 pp. 2034–2041
ISSN:
0022-0493
Subject:
Curculionidae; Cylas formicarius elegantulus; females; gamma radiation; germ cells; insect pests; irradiation; males; mating competitiveness; reproductive performance; somatic cells; sterile insect technique; Ryukyu Archipelago
Abstract:
... The sterile insect technique (SIT) is widely used to suppress or eradicate target pest insect populations. Although the effectiveness of SIT depends on the ability of released sterile males to mate with and inseminate wild females, the use of gamma radiation to induce sterility negatively impacts reproductive cells as well as somatic cells. Consequently, sterilization by irradiation drastically di ...
DOI:
10.1603/EC10044

10. Effect of Mass Rearing on Life History Traits and Inbreeding Depression in the Sweetpotato Weevil (Coleoptera: Brentidae)

Author:
Kuriwada, T.; Kumano, N.; Shiromoto, K.; Haraguchi, D.
Source:
Journal of economic entomology 2010 v.103 no.4 pp. 1144-1148
ISSN:
0022-0493
Subject:
insect pests; Cylas formicarius elegantulus; insect breeding; strain differences; plant pests; inbreeding; risk assessment; mass rearing; inbred lines; inbreeding depression; insectaries; progeny; life cycle (organisms); insect rearing
Abstract:
... Inadvertent selection is an important genetic process that frequently occurs during laboratory culture and maintenance of biological control agents and other beneficial organisms used in procedures such as the sterile insect technique (SIT). We investigated effects of mass rearing and inbreeding depression on life history traits (number of progeny emerging from host plants, body weight, developmen ...
DOI:
10.1603/EC09361
PubMed:
20857721

11. Chemical composition and insecticidal activity of the essential oils from Bursera hollickii (Britton) found in Jamaica

Author:
Junor, Grace-Ann O.; Porter, Roy B.R.; Yee, Trevor H.; Williams, Lawrence A.D.
Source:
Journal of essential oil research 2008 v.20 no.6 pp. 560-565
ISSN:
1041-2905
Subject:
Cylas formicarius elegantulus; beta-pinene; essential oils; beta-caryophyllene; Bursera; mass spectrometry; aqueous solutions; humulene; alpha-pinene; extraction; terpinolene; imagos; alpha-terpineol; leaves; pesticidal plants; insect pests; insecticidal properties; distillation; chemical composition; gas chromatography; bark; Jamaica
DOI:
10.1080/10412905.2008.9700088

12. Biological activity and chemical composition of the essential oil from Jamaican Hyptis verticillata Jacq

Author:
Facey, P.C.; Porter, R.B.R.; Reese, P.B.; Williams, L.A.D.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.12 pp. 4774-4777
ISSN:
0021-8561
Subject:
Hyptis; chemical composition; sesquiterpenoids; insect pests; Cylas formicarius elegantulus; oviposition; Rhipicephalus microplus; insecticidal properties; essential oils; insect growth regulators; acaricidal properties; mass spectrometry; gas chromatography; insect reproduction; shoots
Abstract:
... The chemical composition of the essential oil obtained by hydrodistillation from the aerial parts of Hyptis verticillata Jacq. was elucidated by a combination of GC and GC-MS analyses. The oil was dominated by the sesquiterpenoids cadina-4,10(15)-dien-3-one (15.1%) (1) and aromadendr-1(10)-en-9-one (squamulosone) (30.7%) (2). The oil exhibited chemosterilant activities against the cattle tick, Boo ...
DOI:
10.1021/jf050008y