scholarly journals Life-History Parameters of the Colorado Potato Beetle,Leptinotarsa decemlineata, on Seven Commercial Cultivars of Potato,Solanum tuberosum

2013 ◽  
Vol 13 (132) ◽  
pp. 1-9 ◽  
Author(s):  
Seyed Ali Asghar Fathi ◽  
Zoha Fakhr-Taha ◽  
Jabraeil Razmjou
Chemoecology ◽  
2007 ◽  
Vol 17 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Anne Lyytinen ◽  
Leena Lindström ◽  
Johanna Mappes ◽  
Riitta Julkunen–Tiitto ◽  
Sergey R. Fasulati ◽  
...  

1999 ◽  
Vol 131 (4) ◽  
pp. 521-538 ◽  
Author(s):  
Christine Noronha ◽  
Conrad Cloutier

AbstractPitfall and screen traps were used around potato Solanum tuberosum L. (Solanaceae) plots to detect directional patterns of prediapause (two seasons) and postdiapause (one season) movement in a univoltine population of the Colorado potato beetle, Leptinotarsa decemlineata (Say), from Quebec. Prediapause beetles were sampled for diapause readiness using a feeding–digging test. In 1994, a plot left unprotected from the beetle (moderately defoliated) was monitored. In 1995, movement around a plot left unprotected from the beetle (severely defoliated) was compared to that from a plot protected (only lightly defoliated) by inundative release of the potato beetle predator Perillus bioculatus Say (Hemiptera: Pentatomidae). Movement frequency by postdiapause beetles in spring 1995 was low compared with 1994 prediapause movement, especially on the ground. Low-frequency flying persisted over several weeks of postdiapause beetle oviposition, with only a brief period of directionality. Flight movement by satiated prediapause beetles in August 1994 and 1995 was strongly directional, being oriented toward the closest forest border east of the plots, where sampling confirmed overwintering. In both years, satiated prediapause beetles also emigrated by walking, but mostly from densely populated and defoliated plots. Newly emerged (unsatiated) prediapause beetles emigrated en masse from severely defoliated plants, and did so exclusively by walking. Directional walking contrasted with directional flying in being predominantly oriented south-westward to northwestward, suggesting cueing on the sun position during warm hours of the day.


2000 ◽  
Vol 132 (1) ◽  
pp. 103-105 ◽  
Author(s):  
D.W.A. Hunt ◽  
C.S. Tan

The Colorado potato beetle, Leptinotarsa decemlineata (Say), overwinters in the soil as a diapausing adult. Large numbers of adult beetles fly and walk from potato, Solanum tuberosum L. (Solanaceae), fields to the surrounding forested edges late in the summer (Voss and Ferro 1990). This movement can result in higher densities of diapausing adults in the soil along these edges than in potato fields (Weber and Ferro 1993). Beetles that overwinter in these woody borders show lower levels of overwintering mortality (Weber et al. 1994). Survivorship of overwintering Colorado potato beetle adults was positively correlated with soil depth for studies conducted adjacent to potato fields in New Jersey (Lashomb et al. 1984) and Massachusetts (Weber and Ferro 1993). Lashomb et al. (1984) reported that a 10-cm increase in soil depth decreased winter mortality by 32%.


HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 498F-499
Author(s):  
Catherine M. Ronning ◽  
Lind L. Sanford ◽  
John R. Stommel

Colorado Potato Beetle (Leptinotarsa decemlineata Say., CPB) is a destructive pest of the cultivated potato, Solanum tuberosum L. Certain glycoalkaloids in potato leaves are effective deterrents to this insect; however, in tubers these compounds can be toxic to humans. Leptines are foliar-specific glycoalkaloids produced by the related species, S. chacoense. These compounds have been shown to confer resistance to CPB. We are studying the inheritance of leptine production in segregating F1 and F2 populations derived from two S. chacoense accessions, 55-1 and 55-3, which are (respectively) high and low leptine producers. The F1 segregates 1:1 for high (>70% of total glycoalkaloids) and low (<20% of TGA) leptine content. Segregation data from the F1 and F2 populations suggest a twogene model for leptine production: a dominant repressor and a recessive inducer. Using two bulked DNA samples composed of highand low-leptine individuals from the F1 population, we are using various types of molecular markers (RAPDs, SSRs, DS-PCR, and AFLPs) to search for markers linked to leptine production. We have identified a RAPD band that appears to be closely associated with low leptine content and supports the two-gene model. The use of such a marker in a breeding program will facilitate the development of CPB resistant potato varieties.


Chemoecology ◽  
2008 ◽  
Vol 18 (4) ◽  
pp. 205-216 ◽  
Author(s):  
Beata Szafranek ◽  
Elżbieta Synak ◽  
Danuta Waligóra ◽  
Janusz Szafranek ◽  
Jan Nawrot

Euphytica ◽  
2014 ◽  
Vol 198 (3) ◽  
pp. 425-438 ◽  
Author(s):  
Aleksandar Cingel ◽  
Jelena Savić ◽  
Tatjana Ćosić ◽  
Snežana Zdravković-Korać ◽  
Ivana Momčilović ◽  
...  

Genetics ◽  
2001 ◽  
Vol 158 (2) ◽  
pp. 695-700 ◽  
Author(s):  
David J Hawthorne

Abstract A genetic linkage map was constructed from an intraspecific cross of the Colorado potato beetle, Leptinotarsa decemlineata. This is an initial step toward mapping the loci that underlie important phenotypes associated with insect adaptation to an agroecosystem. The map was made with 172 AFLP and 10 anonymous codominant markers segregating among 74 backcross (BC1) individuals. Markers were mapped to 18 linkage groups and a subset of the markers with a mean intermarker distance of 11.1 cM is presented. A pyrethroid-resistance candidate gene, LdVssc1, was placed onto the map as well. The sex chromosome was identified by exploiting the XO nature of sex determination in this species using patterns of variation at LdVssc1 and the codominant markers.


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