Parasitism research Trichogramma sp. (Hymenoptera: Trichogrammatidae) has been carried out with the aim of studying functional response parasitoid Functional is one measure to determine effectiveness a predator or as an agent in biological control, so that it can express change number preys attacked by individual predators. Temperature most important host-parasitoid interactions responses. The ...

The egg parasitoid Telenomus fariai Costa Lima (Hymenoptera, Scelionidae), is reported for the first time in Veracruz, Mexico. was discovered 2019 during a field collection of Triatoma dimidiata L. (Hemiptera, Reduviidae), representing report its association with Tr. This species here redescribed and sequencing portion cytochrome oxidase 1 gene (COI) performed to facilitate future identificatio...

This study quantitatively describes the host-searching behavior of Fopius arisanus (Sonan) (Hymenoptera: Braconidae), an important egg-larval parasitoid of tephritid fruit fly pests, on coffee berries infested with host eggs of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae). We also investigate the parasitoid’s response to local variation in host patch qualit...

Host manipulation by parasites not only captures the imagination but has important epidemiological implications. The conventional view is that parasites face a trade-off between the benefits of host manipulation and their costs to fitness-related traits, such as longevity and fecundity. However, this trade-off hypothesis remains to be tested. Dinocampus coccinellae is a common parasitic wasp of...

The interactions between Drosophila melanogaster and the parasitoid wasps that infect species provide an important model for understanding host–parasite relationships. Following infection, D. larvae mount a response in which immune cells (hemocytes) form capsule around wasp egg, then melanizes, leading to death of parasitoid. Previous studies have found host hemocyte load; number hemocytes avai...

The leafminerCaloptilia porphyreticaBraun (Lepidoptera: Gracillariidae), has become a frequent pest in commercial highbush blueberries, Vaccinium corymbosum L., in New Jersey, but little is known about its seasonal abundance, life history, and parasitism rates. Monitoring programs were conducted from 2003 to 2006 on seven blueberry farms to determine the relative abundance of this leafminer by ...

Accurate egg placement into or onto a living host is an essential ability for many parasitoids, and changes in associated phenotypes, such as ovipositor morphology and behaviour, correlate with significant host shifts. Here, we report that in the ichneumonid group of koinobiont spider-ectoparasitoids ("polysphinctines"), several putatively ancestral taxa (clade I here), parasitic on ground-dwel...

Egg parasitoids of the corn leafhopper, Dalbulus maidis (DeLong and Wolcott) (Hemiptera: Cicadellidae), were surveyed exposing sentinel eggs of the leafhopper along a latitudinal transect of 600 km in Argentina, the southernmost area of its distribution range. Four parasitoid species were obtained: the mymarids Anagrus breviphragma Soyka (Hymenoptera: Mymaridae), Anagrus flaveolus Waterhouse, a...

Understanding and predicting potential competitive outcomes is critical in the design of biological control programs when considering multiple agent introductions. Tephritid fruit flies (Diptera: Tephritidae) include some most destructive pests vegetable crops worldwide. Parasitoid guilds fruit-infesting tephritids are dominated by opiines (Hymenoptera: Braconidae: Opiinae) that have been main ...