Intraguild interactions between two biological control agents in citrus fruit: implications for biological control of medfly

Tormos, J.; Beitia, Francisco J.; Asís, Josep Daniel; Pedro, Luis de

doi:10.1111/aab.12422

Cited by 9 publications

(4 citation statements)

References 46 publications

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“…A generalised linear model was used to analyse the functional response, with the aim to discriminate between type II and type III responses, the most common responses for invertebrate natural enemies (Fernández‐Arhex & Corley, ; Tormos, Beitia, Asís, & de Pedro, ; Vanaclocha, Papacek, Monzó, Verdú, & Urbaneja, ). The data were fit to a binomial distribution with Logit link function and then fit to their corresponding functional response equation (Fernández‐Arhex & Corley, ; Juliano, ).…”

Section: Methodsmentioning

confidence: 99%

Combined use of the larvo‐pupal parasitoids Diachasmimorpha longicaudata and Aganaspis daci for biological control of the medfly

Pedro

Tormos

Harbi

et al. 2018

Annals of Applied Biology

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In biological control programmes, it is very common to employ multiple species to manage a single insect pest. However, the beneficial effects of natural enemies are not always additive because of several factors, including interspecific competition between these biocontrol agents.For this reason, in the present study we assessed several biological parameters (percentage parasitism, fertility, induced mortality and population reduction) of the parasitoids Diachasmimorpha longicaudata and Aganaspis daci when used together against the medfly Ceratitis capitata under laboratory and greenhouse conditions. Our results showed that, under laboratory conditions, fertility and percentage parasitism corresponded to a different functional response for each species (D. longicaudata: type II; A. daci: type III), whilst under greenhouse conditions, and unlike what occurs with single releases, both parasitoids showed a type III functional response; this is the only response which may lead to direct density dependence when host densities are low.Our results also revealed that when both species acted together, they produced a very high total percentage parasitism compared to that reported for single releases under both laboratory (64-76%) and greenhouse (21-51%) conditions. The parasitism was also higher for A. daci except when medfly larvae were provided in an artificial diet. Furthermore, host mortality induced by the two parasitoids acting together was very high, especially at low-host densities; medfly population was almost completely reduced under greenhouse conditions. In summary, the data reported here supports the combined use of these species in biological control programmes against the medfly and highlights the importance of several factors, such as climatic conditions and host density, when planning their field releases.

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Section: Methodsmentioning

confidence: 99%

Combined use of the larvo‐pupal parasitoids Diachasmimorpha longicaudata and Aganaspis daci for biological control of the medfly

Pedro

Tormos

Harbi

et al. 2018

Annals of Applied Biology

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“…It can infest more than 330 plant species, demonstrating a high degree of adaptation to a wide range of climatic conditions [ 2 ]. It is currently considered a key pest of economic importance for Spanish agriculture, with citrus fruits being the crop most affected by its populations [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Sterile Insect Technique Programme against Mediterranean Fruit Fly in the Valencian Community (Spain)

Plá

Oteyza²,

Tur

et al. 2021

Insects

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The Mediterranean fruit fly, Ceratitis capitata (Wied.), is an endemic pest in fruit-growing areas of the Spanish Mediterranean coast. In the Valencian Community, it represents a serious problem in the cultivation of citrus and numerous species of fruit, such as peach, cherry, apricot, persimmon, etc. For over 50 years, the Department of Agriculture of Valencia has led, promoted, and carried out a C. capitata control programme to protect crops, especially citrus fruits, because this community is the largest national producer and the leading region for fresh citrus exports in the world. Traditionally, pest control has been based on the use of insecticides. However, a reduction of more than 90% of a target wild population was achieved in the frame of a pilot integrated pest management (IPM) project based on the sterile insect technique (SIT), which was implemented from 2003 to 2006. Based on this successful result, in 2007 the Department of Agriculture of Valencia initiated an area-wide integrated pest management (AW-IPM) programme for the suppression of C. capitata, using the SIT as the primary control method. Complementary activities are implemented periodically in hotspots and during different time periods depending on the pest population dynamics. As a result, there has been a reduction of more than 90% in the use of insecticides by aerial means to control C. capitata, as well as a growth trend in exports of citrus and fresh fruits from the Valencian Community in recent years. This paper provides a historical review of the Valencian programme and briefly describes how technological innovations and decision-making tools have contributed to programme efficiency.

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“…Because these parasitoids are easily and economically reared on wide range of hosts, there has been considerable interest in evaluating them for use as augmentative biological control agents against tephrititoid pest pupae. Spalangia cameroni has been studied extensively, with mass-rearing methods developed to produce parasitoids on medfly hosts [34][35][36][37][38][39], host preferences for medfly and house fly [40], and interactions with other biological control agents of medfly [41]. Development of Spalangia endius was studied in guava fruit fly (Bactrocera correcta) and oriental fruit fly (B. dorsalis) [17,42], and a massrearing system was developed using medfly hosts [43].…”

Section: Discussionmentioning

confidence: 99%

Laboratory Evaluation of Pupal Parasitoids for Control of the Cornsilk Fly Species, Chaetopsis massyla and Euxesta eluta

Allan

Geden

Sobel

2022

Insects

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Cornsilk flies are serious pests of sweet corn through damage to cobs and secondary fungal establishment. As pupae are generally outside the infested cob on the ground, there can be potential for use of pupal parasitoids for control. Two species of gregarious parasitoids, Muscidifurax raptorellus and Nasonia vitripennis, and three species of solitary parasitoids, Spalangia endius, Spalangia cameroni and Muscidifurax raptor, were evaluated against pupae of the two cornsilk fly species, Euxesta eluta and Chaetopsis massyla. House fly pupae, the most common host for most of the parasitoids, were included for comparison. All of the parasitoids killed and successfully parasitized pupae of the two cornsilk fly species at rates that were similar to house fly pupae. Adult parasitoids that emerged from cornsilk fly hosts were somewhat smaller than parasitoids reared from house flies and had proportionally fewer females. These parasitoids, which are widely and commercially available for filth fly control, warrant further consideration for their potential against cornsilk flies in the field.

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Intraguild interactions between two biological control agents in citrus fruit: implications for biological control of medfly

Cited by 9 publications

References 46 publications

Combined use of the larvo‐pupal parasitoids Diachasmimorpha longicaudata and Aganaspis daci for biological control of the medfly

Combined use of the larvo‐pupal parasitoids Diachasmimorpha longicaudata and Aganaspis daci for biological control of the medfly

Sterile Insect Technique Programme against Mediterranean Fruit Fly in the Valencian Community (Spain)

Laboratory Evaluation of Pupal Parasitoids for Control of the Cornsilk Fly Species, Chaetopsis massyla and Euxesta eluta

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