Ability of Platygaster demades (Hymenoptera: Platygastridae) to Parasitize Both Eggs and Larvae Makes it an Effective Natural Enemy of Dasineura mali (Diptera: Cecidomyiidae)

  title={Ability of Platygaster demades (Hymenoptera: Platygastridae) to Parasitize Both Eggs and Larvae Makes it an Effective Natural Enemy of Dasineura mali (Diptera: Cecidomyiidae)},
  author={Xiao Zhao He and Qiao Wang},
  booktitle={Journal of economic entomology},
ABSTRACT Dasineura mali Kieffer (Diptera: Cecidomyiidae) is an important pest of young apple trees in New Zealand and a serious quarantine pest in Asia, Australia, and western United States. Platygaster demades Walker (Hymenoptera: Platygastridae) is a parasitoid of D. mali. The developmental period of the parasitoid is longer than that of D. mail, suggesting a possible asynchrony between the two species in the field. Prior to the present study, this parasitoid was considered laying eggs only… 
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Demographic dynamics of Platygaster demades in response to host density
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Systematics, evolution, and biology of scelionid and platygastrid wasps.
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Developmental biology and field performance of Platygaster diplosisae Risbec (Hymn: Platygasteridae) an egg-larval parasitoid of african rice gall midge Orseolia oryzivora Harris and Gagné (Diptera: Cecidoymiidae)
The results showed that P. diplosisae has an impact as a bio-control agent of AfRGM, but the percentage parasitism of the host was low at the beginning of the season and increased significantly later in the season with a peak in October of each season.
Aestivation in apple leaf-curling midge (Diptera: Cecidomyiidae) parasitoid, Platygaster demades Walker (Hymenoptera: Platygastridae)
The emergence patterns of overwintered parasitoids and ALCM were highly synchronized in the following season.
Aspects of the Foraging Behaviour of Tetrastichus Asparagi Crawford and Tetrastichus Spec. (Eulophidae), Gregarious Egg Parasitoids of the Asparagus Beetles Crioceris Asparagi L. and C. Duodecimpunctata L. (Chrysomelidae)
Two Tetrastichus species are gregarious and lay about six eggs per oviposition, and are able to discriminate between unparasitized and parasitized hosts, and reject parasitizedhosts after antennation or after probing with the ovipositor.
Phenology of apple leafcurling midge ( Dasineura mali ) in relation to parasitism by Platygaster demades
The phenology of apple leafcurling midge (ALCM) and that of its parasitoid, Platygaster demades, was monitored in orchards over several years in the Nelson district to develop a model to predict generation timing.
Host Location and Ovipositional Behavior of Platygaster demades Walker (Hymenoptera: Platygastridae), an Egg Parasitoid of Apple and Pear Leaf Curling Midges
The results indicate that P. demades utilizes plant cues to locate the habitat of its host and then searches for host eggs to parasitize, and responds equally to both apple and pear odors.