• Corpus ID: 85826392

How do ladybirds and syrphids respond to aphids in the field

  title={How do ladybirds and syrphids respond to aphids in the field},
  author={Jean-Louis Hemptinne and Jean‐Louis Doucet and Charles Gaspar},
Phenology of Coccinellid predators in berseem (Trifolium alexandrinum)
Phenology of coccinellid predators were studied in the fields of berseem crop through in situ plant count method in the December to March in years 2011-2012 and 2012-2013.
Co-occurrence of predators of black bean aphid (Aphis fabae Scop.) on Philadelphus coronarius
The aim of the investigations was to determine the effect of interaction between individual aphidophagous groups and their developmental stages on their occurrence in Aphis fabae Scop. colonies in
Colonization of apple orchards by predators of Dysaphis plantaginea: sequential arrival, response to prey abundance and consequences for biological control
The results of this study indicate that natural populations of syrphids and ladybird beetles are unable to control D. plantaginea, and therefore a more complex strategy than waiting for natural enemies is required.
Oviposition behaviour and host colony size discrimination in Episyrphus balteatus (Diptera: Syrphidae)
Three bioassays were used to examine the oviposition behaviour of the hoverfly, Episyrphus balteatus (Degeer) in which various stimuli purported to influence host assessment and choice were tested, suggesting that females are merely responding to the colour of the artificial leaves.
Aphid suitability and its relationship to oviposition preference in predatory hoverflies.
Both the literature evidence reviewed and the data from the experiment indicated that fitness components and overall individual fitnesses are broadly similar among all aphid species, with some exceptions.