The structure of feeding behavior in the colorado potato beetle,Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

1994 ◽  
Vol 7 (5) ◽  
pp. 707-729 ◽  
Author(s):  
B. K. Mitchell ◽  
Raymond Low
Keyword(s):  
Feeding Behavior ◽  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Potato Beetle

scholarly journals Susceptibility of Seven Tomato Varieties to Spodoptera littoralis (Lepidoptera: Noctuidae) and Colorado Potato Beetle (Coleoptera: Chrysomelidae) Leaf Infestation

HortScience ◽  
1996 ◽  
Vol 31 (4) ◽  
pp. 570c-570
Author(s):  
George F. Antonious ◽  
Matthew E. Byers ◽  
John C. Snyder ◽  
Douglas L. Dahlman
Keyword(s):  
Lycopersicon Esculentum ◽  
Feeding Behavior ◽  
Pest Management ◽  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Spodoptera Littoralis ◽  
Crop Varieties ◽  
Potato Beetle ◽  
Lepidoptera Noctuidae ◽  
Insect Attack

The development and deployment of crop varieties that resist or tolerate insect attack is one tactic of pest management that can eliminate one or more spray applications per season, a significant savings to the grower. Seven tomato, Lycopersicon esculentum Mill. cultivars (Marmand, Edkawy, VF-145, GS-27, Pakmore-B, Flordade, and UCX) were evaluated under greenhouse conditions for differences in mortality and feeding behavior (leaf-area ingested) of the 4th instar larvae of Spodoptera littoralis (Boisd) and the Colorado potato beetle, Leptinotarsa decemlineata (Say). The most resistant cultivars to S. littoralis during two summer seasons, 1990 and 1991, were Edkawy and UCX (37% mortality) and VF-145 (33% mortality). Mortality was least (20%) on the F1 hybrid GS-27, indicating that GS-27 was the most favorable cultivar for S. littoralis. L. decemlineata larvae reared on excised tomato leaflets of the same varieties indicated similar trends. Factors responsible for greater resistance of Edkawy and UCX to S. littoralis and L. decemlineata are under investigation.

scholarly journals AFLP-Based Genetic Linkage Map of the Colorado Potato Beetle Leptinotarsa decemlineata: Sex Chromosomes and a Pyrethroid-Resistance Candidate Gene

Genetics ◽  
2001 ◽  
Vol 158 (2) ◽  
pp. 695-700 ◽  
Author(s):  
David J Hawthorne
Keyword(s):  
Candidate Gene ◽  
Linkage Map ◽  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Sex Chromosome ◽  
Pyrethroid Resistance ◽  
Codominant Markers ◽  
Potato Beetle

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.

Population-associated heterogeneity of the digestive Cys protease complement in Colorado potato beetle, Leptinotarsa decemlineata

2018 ◽  
Vol 106 ◽  
pp. 125-133 ◽  
Author(s):  
Asieh Rasoolizadeh ◽  
Marie-Claire Goulet ◽  
Jean-Frédéric Guay ◽  
Conrad Cloutier ◽  
Dominique Michaud
Keyword(s):  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Potato Beetle
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