EFFECT OF HOST DEFENSE CHEMICALS ON CLONAL DISTRIBUTION AND PERFORMANCE OF DIFFERENT GENOTYPES OF THE CEREAL APHID Sitobion avenae

2004 ◽  
Vol 30 (12) ◽  
pp. 2515-2525 ◽  
Author(s):  
CHRISTIAN C. FIGUEROA ◽  
JEAN-CHRISTOPHE SIMON ◽  
JEAN-FRANCOIS LE GALLIC ◽  
NATHALIE PRUNIER-LETERME ◽  
LUCIA M. BRIONES ◽  
...  
Keyword(s):  
Host Defense ◽  
Sitobion Avenae ◽  
Cereal Aphid ◽  
Clonal Distribution ◽  
Defense Chemicals ◽  
And Performance

scholarly journals Genetic structure and clonal diversity of an introduced pest in Chile, the cereal aphid Sitobion avenae

Heredity ◽  
2005 ◽  
Vol 95 (1) ◽  
pp. 24-33 ◽  
Author(s):  
C C Figueroa ◽  
J-C Simon ◽  
J-F Le Gallic ◽  
N Prunier-Leterme ◽  
L M Briones ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Clonal Diversity ◽  
Sitobion Avenae ◽  
Cereal Aphid ◽  
Introduced Pest

Flying with a ‘death sentence’ on board: electrophoretic detection of braconid parasitoid larvae in migrating winged grain aphids, Sitobion avenae (F.)

2011 ◽  
Vol 101 (4) ◽  
pp. 443-449 ◽  
Author(s):  
M.P. Walton ◽  
H.D. Loxdale ◽  
L.J. Allen-Williams
Keyword(s):  
Fungal Infection ◽  
Fungal Pathogens ◽  
Polyacrylamide Gel Electrophoresis ◽  
Sitobion Avenae ◽  
Aphidius Ervi ◽  
Death Sentence ◽  
Cereal Aphid ◽  
Aphid Parasitoid ◽  
Aphidius Rhopalosiphi ◽  
Population Structure And Dynamics

AbstractPolyacrylamide gel electrophoresis of enzymes (carboxylesterases) was used for the first time to monitor rates of parasitism in airborne alate (winged) grain aphid, Sitobion avenae (F.) population samples collected by suction trapping in Hertfordshire, UK. Using previously described electrophoretic ‘keys’, the species of hymenopterous parasitoids present in individual aphids were identified and found to be Aphidius ervi (Haliday) and/or Aphidius rhopalosiphi (De Stephani Perez) (Braconidae). Entomophthoralean fungal infection was also detected using this approach. Aphidiid wasp parasitism was detected from early June to mid-August and fungal infection from late June to late July. The results are discussed in relation to parasitoid population structure and dynamics, especially (i) the fact that winged aphids passively transport the early stages of their braconid parasitoids and fungal pathogens, potentially to newly-founded colonies, which may directly impact on the dual aphid-parasitoid populations genetics; and (ii) the approach used to collect and assay parasitised and fungal infected aphids involving both suction trapping and electrophoretic testing may have potential in assessing the level and efficacy of these biological control agents in integrated pest management (IPM) schemes to combat cereal aphid outbreaks.

Assessment of methods for estimating the numbers of aphids (Hemiptera: Aphididae) in Cereals

1982 ◽  
Vol 72 (4) ◽  
pp. 675-685 ◽  
Author(s):  
Alan M. Dewar ◽  
Godfrey J. Dean ◽  
Ray Cannon
Keyword(s):  
Field Studies ◽  
Accurate Method ◽  
Sitobion Avenae ◽  
Cereal Aphid ◽  
Metopolophium Dirhodum ◽  
Aphid Density ◽  
Very High ◽  
Vacuum Sampling

AbstractVisual counting was found to be the most accurate method of estimating cereal aphid numbers in field studies in England. Vacuum sampling decreased in efficiency as aphid density increased, but could be a useful alternative to visual counts at very low aphid densities when the latter became too time-consuming. Cutting tillers for later washing in the laboratory was less efficient than visual counting as aphids, especially Metopolophium dirhodum (Wlk.), fell off the plants during sampling, but this method was useful in determining the proportion of different morphs of Sitobion avenae (F.) present at very high densities.

Effects of field simulated warming on feeding behavior of Sitobion avenae (Fabricius) and host defense systems

2021 ◽  
Author(s):  
Yi Wang ◽  
Jia Yan ◽  
Jingrui Sun ◽  
Wangpeng Shi ◽  
James D. Harwood ◽  
...  
Keyword(s):  
Feeding Behavior ◽  
Host Defense ◽  
Sitobion Avenae ◽  
Defense Systems

Harbouring the secondary endosymbiont Regiella insecticola increases predation risk and reproduction in the cereal aphid Sitobion avenae

2019 ◽  
Vol 92 (3) ◽  
pp. 1039-1047 ◽  
Author(s):  
Guillermo E. Ramírez-Cáceres ◽  
Mario G. Moya-Hernández ◽  
Manuel Quilodrán ◽  
Roberto F. Nespolo ◽  
Ricardo Ceballos ◽  
...  
Keyword(s):  
Predation Risk ◽  
Sitobion Avenae ◽  
Cereal Aphid ◽  
Secondary Endosymbiont
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