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Lauzière, Isabelle; Legaspi, Jesusa C.; Legaspi, Benjamin C.; Smith, James W.; Jones, Walker A.

doi:10.1023/a:1009972316870

Cited by 16 publications

(2 citation statements)

References 18 publications

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“…In O. ochracea , the number of planidia that gravid females carry can range from less than 65 to more than 500 (Wineriter and Walker, 1990). While not directly examined in O. ochracea , fecundity in other tachinids vary with fly size (Ho et al, 2011; Lauziere et al, 2001; Nakamura, 1995; Reitz and Adler, 1995). Presumably, fly size in O. ochracea will also affect fecundity and overall reproductive fitness.…”

Section: Discussionmentioning

confidence: 99%

Resource competition affects the developmental outcome of the acoustic parasitoid flyOrmia ochracea

Dominguez,

Latham,

Mongui

et al. 2024

Preprint

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Ormia ochraceais an acoustic parasitoid fly where the adults are free-living, but their larval young depend on nutritional resources within host crickets for growth and development. In nature, gravid female flies rely on their ability to recognize and localize cricket calling songs to find suitable host species to parasitize. In depth investigations of fly behavior and the mechanistic bases of auditory perception require a reliable approach to propagate stable fly colonies in the laboratory. Previous work has demonstrated that flies can be propagated using a number of natural host cricket species, as well as cricket species that flies do not parasitize in nature. However, we lack a complete understanding of fly developmental outcomes when non-host cricket species are utilized to propagate fly colonies. In this study, we document the feasibility of using commercially suppliedAcheta domesticusas a host species. We specifically test the hypothesis that host size and resource competition can affect developmental outcomes ofO. ochracea. We performed manual parasitizations on crickets that varied in size, and resource competition was varied by manipulating the number of larvae used to parasitize a host cricket. A series of morphometric analyses were conducted on host crickets, and developmental outcomes were measured in terms of pupation success and eclosion success, pupal width, and eclosed adult fly size. In the absence of resource competition, we found that host cricket size did not affect pupation or eclosion success. In the presence of resource competition between two developing larvae within a host cricket, pupation and eclosion successes were impacted negatively, and the developing pupae were more likely to be smaller. These results confirm that resource competition among developing parasitoids can negatively affect developmental outcomes, andAcheta domesticuscan be used effectively to propagate colonies ofO. ochraceain the laboratory.

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Section: Discussionmentioning

confidence: 99%

Resource competition affects the developmental outcome of the acoustic parasitoid flyOrmia ochracea

Dominguez,

Latham,

Mongui

et al. 2024

Preprint

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“…The fact that parasitoids deprived of hosts lived longer has also been well documented among tachinids. Lauzière et al (2001) found that Lydella jalisco Woodley, a tachinid solitary parasitoid of the Mexican rice borer Eoreuma loftini (Dyar), lived longer when deprived of hosts. Some other tachinids showed a similar tendency.…”

Section: Discussionmentioning

confidence: 99%

The biology of the parasitoid fly Drino inconspicuoides (Diptera: Tachinidae) in the host Mythimna separata (Lepidoptera: Noctuidae)

Kalyebi

Nakamura

2006

Appl. Entomol. Zool.

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United States Department of Agriculture–Agricultural Research Service research on biological control of arthropods

Hopper

2003

Pest Management Science

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During 1999-2001, ARS scientists published over 100 papers on more than 30 species of insect pest and 60 species of predator and parasitoid. These papers address issues crucial to the three strategies of biological control: conservation, augmentation and introduction. Conservation biological control includes both conserving extant populations of natural enemies by using relatively non-toxic pesticides and increasing the abundance of natural enemies in crops by providing or improving refuges for population growth and dispersal into crops. ARS scientists have been very active in determining the effects of pesticides on beneficial arthropods and in studying movement of natural enemies from refuges into crops. Augmentation involves repeated releases of natural enemies in the field, which can be inoculative or inundative. Inoculative releases are used to initiate self-propagating populations at times or in places where they would be slow to colonize. ARS scientists have studied augmentative biological control of a variety of pest insects. The targets are mostly pests in annual crops or other ephemeral habitats, where self-reproducing populations of natural enemies are not sufficiently abundant early enough to keep pest populations in check. ARS research in augmentative biological control centers on methods for rearing large numbers of healthy, effective natural enemies and for releasing them where and when they are needed at a cost less than the value of the reduction in damage to the crop. ARS scientists have researched various aspects of introductions of exotic biological control agents against a diversity of pest insects. The major issues in biological control introductions are accurate identification and adequate systematics of both natural enemies and target pests, exploration for natural enemies, predicting the success of candidates for introduction and the likelihood of non-target impacts, quarantine and rearing methods, and post-introduction evaluation of establishment, control and non-target impacts. ARS scientists have published research on several general issues in biological control. Among the most important are the mechanisms affecting mate- and host-finding and host specificity.

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Cited by 16 publications

References 18 publications

Resource competition affects the developmental outcome of the acoustic parasitoid flyOrmia ochracea

Resource competition affects the developmental outcome of the acoustic parasitoid flyOrmia ochracea

The biology of the parasitoid fly Drino inconspicuoides (Diptera: Tachinidae) in the host Mythimna separata (Lepidoptera: Noctuidae)

United States Department of Agriculture–Agricultural Research Service research on biological control of arthropods

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