Suppression of a Caribbean Fruit Fly (Anastrepha suspensa(Loew) Diptera: Tephritidae) Population through Augmented Releases of the ParasitoidDiachasmimorpha longicaudata(Ashmead) (Hymenoptera: Braconidae)

Dispersal capacity of fruit fly parasitoid Diachasmimorpha longicaudata (Hymenoptera: Braconidae) in irrigated coffee plantations

“…In this study, coffee beans were collected only from the canopy of trees after releases. Removing the fruit from the field during the sampling procedure reduces the period when the larvae are susceptible to attack, resulting in underestimated parasitism (Sivinski et al, 1996). Thus, for D. longicaudata, the most accurate samples are obtained from fallen fruit in which all larvae matured, but none was left to pupate.…”

“…The present study leads us to recommend, based on the obtained average dispersal area, that cohorts of 2,000 parasitoids be released in six points per hectare. Furthermore, if augmentative releases are used together with other strategies, such as sterile insect technique and cultural control methods, this can result in significant and important synergistic effects on the suppression of the fruit fly population (Sivinski et al, 1996;Montoya et al, 2000). In the future, additional studies incorporating longer post-release sampling periods could estimate D. longicaudata persistence in the field and frequently of releases to keep the desired densities of both the pest and the parasitoid species.…”

“…flies (Montoya et al, 2000;Sivinski et al, 1996). D. longicaudata is a larval-prepupal parasitoid that performs best when provided hosts in late 2 nd and early 3 rd instars.…”

Pest management through tropical tree conservation

“…control Toxic bait sprays have been used extensively to control pest Anastrepha species (Aluja 1994;Raga and Sato 2005). But the sterile insect technique (SIT) (Reyes et al 2000), classical biological control (Eskafi 1990;Ovruski et al 2000) and augmentative releases of parasitoids (Sivinski et al 1996;Montoya et al 2000Montoya et al , 2007 have resulted in complete or partial control of pest tephrtid populations at certain times and places. Recently, a series of biorational techniques such as trap crops, modified orchard design and the use of behaviormodifying chemicals have been proposed (see Aluja and Rull 2009 and references therein).…”

“…Naturally occurring suppression in these adjacent areas could reduce the number of adult fruit flies available to move into orchards. Enhancing biological control on pest reservoirs to prevent agricultural infestations follows the same rationale behind a number of augmentative projects that mass-release natural enemies into neighboring rather than cultivated areas (Sivinski et al 1996;Montoya et al 2000).…”