A WHITE COLOR MORPH OF THE COLORADO POTATO BEETLE, LEPTINOTARSA DECEMLINEATA (COLEOPTERA: CHRYSOMELIDAE)

1980 ◽  
Vol 112 (9) ◽  
pp. 975-975 ◽  
Author(s):  
Gilles Boiteau
Keyword(s):  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
First Record ◽  
The United States ◽  
Young Female ◽  
Color Morph ◽  
Research Station ◽  
Light Yellow ◽  
Potato Beetle ◽  
White Mutant

The Colorado potato beetle, Leptinotarsa decemlineata (Say), is distributed throughout the world and is an occasional pest of potatoes in Atlantic Canada. During the course of rearing Colorado potato beetles for behavioral studies at the Fredericton Research Station I obtained a strain of beetles which differs from the normal brown morph in being predominantly white. Similar coloring occurs in larvae and pupae and in young female and male adults. The eggs are light yellow instead of the usual orange-yellow. Such an albinic mutant has been previously reported in the United States by Tower (1906) and named L. pallida. Tower found the white mutant to be true-breeding and widely distributed, occurring both in nature and in laboratory colonies. Such a mutant has not been reported since and this is the first record of a white morph in Canada.

A RED COLOR MORPH OF THE COLORADO POTATO BEETLE, LEPTINOTARSA DECEMLINEATA (SAY) (COLEOPTERA: CHRYSOMELIDAE)

1987 ◽  
Vol 119 (10) ◽  
pp. 957-958 ◽  
Author(s):  
Gilles Boiteau
Keyword(s):  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Genetic System ◽  
Color Morph ◽  
Research Station ◽  
Potato Beetle ◽  
Frequent Monitoring ◽  
Royal Horticultural Society ◽  
Red Color ◽  
Leptinotarsa Decemlineata Say

The Colorado potato beetle, Leptinotarsa decemlineata (Say), has a genetic system of great diversity and dynamic nature. This results in an enormous adaptability to a range of habitat conditions. Its genetic diversity is exemplified by the existence of color mutants (Tower 1906; Boiteau 1980, 1985).In the summer of 1986, a red-body mutant male beetle was found in a potato field on the grounds of the Research Station in Fredericton, N.B., Canada. No other red beetles could be found in spite of frequent monitoring of beetle populations. The specimen retains the normal black maculation throughout but all pale yellow to flavous areas of normal beetles have been replaced by the color red (Scarlet 19/3 of the Royal Horticultural Society Colour Charts, 1942). To the best of my knowledge, this is the first report of a red Colorado potato beetle in Canada. Previously, red potato beetles had only been reported from the semi-desertic area of Toluca, near Mexico City (Tower 1906).

scholarly journals Conjugated linoleic acid as a novel insecticide targeting the agricultural pest Leptinotarsa decemlineata

2019 ◽  
Author(s):  
Justin Clements ◽  
Russell L. Groves ◽  
JoAnn Cava ◽  
Caroline Barry ◽  
Scott Chapman ◽  
...  
Keyword(s):  
Linoleic Acid ◽  
Conjugated Linoleic Acid ◽  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Larval Mortality ◽  
Larval Growth ◽  
The United States ◽  
Feeding Preference ◽  
Agricultural Pest ◽  
Potato Beetle

AbstractThe Colorado Potato Beetle, Leptinotarsa decemlineata, is a major agricultural pest of solanaceous crops in the United States. Historically, a multitude of insecticides have been used to control problematic populations. Due to increasing resistance to insecticides, novel compounds and methodologies are warranted for the control of beetle populations. Mixed-isomer conjugated linoleic acid has been studied in-depth for its beneficial properties to mammalian systems. At the same time, studies have demonstrated that conjugated linoleic acid can manipulate fatty acid composition in non-mammalian systems, resulting in embryo mortality. Consequently, experiments were conducted to assess the effects of foliar-applied conjugated linoleic acid on larval growth, embryogenesis, and feeding preference in Colorado potato beetle. Both maternal and deterrent effects of dietary conjugated linoleic acid were assessed. Conjugated linoleic acid demonstrated desirable insecticidal properties, including increased larval mortality, slowed larval development, antifeedant effects, and decreased egg viability after maternal ingestion.

scholarly journals Colorado Potato Beetle, Leptinotarsa decemlineata (Say) and False Potato Beetle, Leptinotarsa juncta (Germar) (Insecta: Coleoptera: Chrysomelidae)

EDIS ◽  
1969 ◽  
Vol 2003 (14) ◽  
Author(s):  
Richard L. Jacques, Jr.
Keyword(s):  
United States ◽  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
The United States ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
University Of Florida ◽  
Potato Beetle ◽  
Leptinotarsa Decemlineata Say ◽  
Solanaceous Plants

True "potato beetles" are members of the beetle genus Leptinotarsa, with 32 species in North America, including Mexico; 10 species in the continental United States, including two species in Florida. The most notable is the Colorado potato beetle, Leptinotarsa decemlineata (Say), found in Florida and most of the United States, and introduced into Europe and parts of Asia. It is a serious pest of potatoes and other solanaceous plants. This document is EENY-146 (originally published as DPI Entomology Circular 271), one of a series of Featured Creatures from the Entomology and Nematology Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Published: July 2000. Revised: August 2003.  EENY146/IN303: Colorado Potato Beetle, Leptinotarsa decemlineata (Say), and False Potato Beetle, Leptinotarsa juncta (Germar) (Insecta: Coleoptera: Chrysomelidae) (ufl.edu)

scholarly journals Origin of pest lineages of the Colorado potato beetle, Leptinotarsa decemlineata

2017 ◽  
Author(s):  
Victor Izzo ◽  
Yolanda H. Chen ◽  
Sean D. Schoville ◽  
Cong Wang ◽  
David J. Hawthorne
Keyword(s):  
Genetic Diversity ◽  
Host Range ◽  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Insect Pest ◽  
Rapid Evolution ◽  
The United States ◽  
Southern Plains ◽  
Potato Beetle ◽  
Exotic Pests

ABSTRACTColorado potato beetle (Leptinotarsa decemlineata Say) is a pest of potato throughout the Northern Hemisphere, but little is known about the beetle’s origins as a pest. To determine the origins of pest populations of CPB, we sampled the beetle from uncultivated Solanum host plants in Mexico, and from pest and non-pest populations in the U.S. We used mtDNA and nuclear loci to examine three hypotheses on the origin of the pest lineages: 1) the pest beetles originated from Mexican populations, 2) the pest beetles descended from hybridization between previously divergent populations, or 3) the pest beetles descended from populations that are native to the Plains states in the United States. We examined patterns of genetic diversity among geographic regions in order to detect invasion-related genetic information. Mitochondrial haplotypes of non-pest populations from Mexico and southern Arizona differed substantially from beetles collected from the southern plains and potato fields in the U. S., indicating that beetles from Mexico and Arizona did not contribute to founding the pest lineages. Similar results were observed for AFLP and microsatellite data. In contrast, non-pest populations from the southern plains of Colorado, Kansas, Nebraska, New Mexico, and Texas were genetically similar to U. S. pest populations, clearly indicating that they contributed to the founding of the pest lineages. Although some pest populations are less genetically diverse (e.g., Washington, Idaho), most of the pest populations do not show a significant reduction in genetic diversity compared to the plains populations in the U. S. In contrast to the colonization patterns typical of exotic pests, our analyses suggests that a large genetically heterogeneous beetle populations expanded onto potato from native Solanum hosts. As an endemic colonization of a novel host plant, this host range expansion may have contributed to the relatively abundant genetic diversity of contemporary populations, perhaps contributing to the rapid evolution of host range and insecticide resistance in this widely successful insect pest.

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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