The origin of groundnut infestation by the seed beetle Caryedon serratus (Olivier) (Coleoptera: Bruchidae): Results from cytochrome B and ITS1 gene sequences

Genetic differentiation in sympatric populations of the groundnut seed beetle Caryedon serratus (Coleoptera: Chrysomelidae): new insights from molecular and ecological data

“…Different levels of genetic differentiation between co-occurring 'Bauhinia', 'Piliostigma' and 'Tamarindus' native populations, and 'groundnut' populations of C. serratus were identified, confirming the previous results of and Sembène (2006), and in particular the relative genetic isolation of populations on B. rufescens, and the close relationship between P. reticulatum and A. hypogaea populations. Different levels of genetic differentiation between co-occurring 'Bauhinia', 'Piliostigma' and 'Tamarindus' native populations, and 'groundnut' populations of C. serratus were identified, confirming the previous results of and Sembène (2006), and in particular the relative genetic isolation of populations on B. rufescens, and the close relationship between P. reticulatum and A. hypogaea populations.…”

“…These beetles are, however, much more prone to migration towards groundnut or P. reticulatum than those on B. rufescens Sembène, 2006). The 'Tamarindus' population is less clearly differentiated from populations from the other host plants.…”

“…Many of these mechanisms are discussed in Sembène (2006). The main factors that could possibly maintain allele frequency differences among ancestral populations and between them and derived groundnut populations are the following: (i) post-mating reproductive isolation between races, (ii) differential larval survival within seeds, (iii) differential host recognition by adult beetles, (iv) temporal and spatial differences in adult emergence and (v) host seed availability.…”

Biocidal Effect of Leaves of <i>Crataeva religiosa</i> Forst on a Resistant Strain of Groundnut Bean <i>Caryedon serratus</i> (Olivier)

“…economic system of Senegal where its culture covers more than half of the cultivable surface. This leguminous crop yields around 80 billion FCFA each year, which represents 40% of the country's total exports [2]. High in protein and calories (50% fat, 25% protein), this oilseed is also a very important nutrient supply for local populations [3].…”

Insect attractant and oviposition enhancing activity of hexadecanoic acid ester derivatives for monitoring and trapping Caryedon serratus

“…Studies have shown that maximum losses due to the attack of C. serratus occur at the time of storage (Mishra and Dash, 2009). Infestation rate and population levels increase rapidly in stores leading to heavy weight losses in stored groundnuts (Sembene, 2006). It is therefore necessary to control the pest C. serratus of which the destructive stages have a hidden and protected life style within stored groundnuts.…”