Functional response and preference of Diachasmimorpha longicaudata (Hymenoptera: Braconidae) in Ceratitis capitata and Anastrepha fraterculus (Diptera: Tephritidae)

Altafini, Deisi Luizelli; Jahnke, Simone Mundstock; Efrom, Caio Fábio Stoffel

doi:10.1590/0001-3765202120190935

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…A female‐biased offspring sex ratio directly favors higher population increase rates (Dyson & Hurst, 2004; Weerawansha et al, 2022), which is fundamental in the use of augmentative releases to maintain substantial effects in the suppression of pest populations (Heimpel & Lundgren, 2000; Ode & Heinz, 2002). The use of Anastrepha larvae (i.e., A. ludens , A. fraterculus ) as hosts allows the emergence of adults with a higher proportion of females in a consistent mean ratio of two females to one male, which does not occur with the use of larvae of other species such as Ceratitis capitata (Wiedemann), where the sex ratio is almost one to one (Ovruski et al, 2011; Altafini et al, 2021). Offspring sex ratio is the result of various factors that influence female oviposition (Henter, 2004; Mohamad et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Influence of host larval weight of Anastrepha ludens on production parameters and quality attributes in the mass rearing of the parasitoid Diachasmimorpha longicaudata

Cancino¹,

Ayala²,

López³

et al. 2023

Entomologia Exp Applicata

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Larvae of Anastrepha ludens (Loew) (Diptera: Tephritidae) are non‐native hosts of the parasitoid Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae). These hosts appear to be a very good resource for the development of D. longicaudata in a wide range of larval weights. Therefore, the present study aimed to evaluate whether the larval weight of A. ludens influences the emergence and mass‐rearing parameters of D. longicaudata, including the parasitoid's adult attributes and host selection capacity. Three mean larval weights of 29, 25, and 21 mg were considered as high, medium, and low categories for the analysis. The tests included the effect of management of host larvae in the mass rearing of the parasitoids. In addition, evaluations of flight ability, survival, fecundity, and size were carried out in the adults that emerged from the larvae of the various weight categories. There was a direct relationship between host larval weight and parasitoid pupal weight, but there was no relationship with the emergence of adult parasitoids. However, a high percentage of females emerged from heavier larvae. Similarly, although adults that developed in the heaviest larval category were larger, adult quality parameters were not affected. In the evaluations of host selection, the parasitoids oviposited randomly in the larvae from the various weight categories; there was only selection if larvae of different weights were mixed. In addition, superparasitism did not differ between larval weight categories. In the evaluation of competition for hosts in cages under field conditions, larger female parasitoids that developed in the heaviest host larvae landed more frequently on infested fruit, but oviposition was similar between females of different sizes. In conclusion, the larval weight of A. ludens influenced the size of the host puparia and of adults of D. longicaudata, but the emergence and attributes of the developed adults were similar. Therefore, it can be concluded that the low larval weights of A. ludens evaluated in this study are within the range for proper development of D. longicaudata in mass rearing. This allows several options to produce hosts at a lower cost without negatively affecting the quality of parasitoid production.

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Section: Discussionmentioning

confidence: 99%

Influence of host larval weight of Anastrepha ludens on production parameters and quality attributes in the mass rearing of the parasitoid Diachasmimorpha longicaudata

Cancino¹,

Ayala²,

López³

et al. 2023

Entomologia Exp Applicata

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“…After the exposure of the fruits to female D. longicaudata , behavioral evaluations were performed for 1 h, according to Altafini et al. (2019). The behavioral parameters evaluated were as follows: (1) landing (the parasitoid lands on the fruit); (2) inspection (the parasitoid walks on the fruit, vibrating her antennae and touching the oviposition substrate); (3) buccal contact (the parasitoid stops walking, leans, and touches the substrate with the buccal apparatus, i.e., the mouth); (4) oviposition attempts (the parasitoid inserts her ovipositor in the fruit); (5) cleaning (the parasitoid cleans her wings, legs, ovipositor, or buccal apparatus); (6) resting on fruit (the parasitoid rests on the fruit, without performing any of the behaviors described above); and (7) resting on cage (the parasitoid does not land on the fruit and remains on the walls of the cage).…”

Section: Methodsmentioning

confidence: 99%

Can the use of particle films for fruit protection against medfly alter the behavior of the parasitoid Diachasmimorpha longicaudata?

da Costa,

Leite,

dos Santos

et al. 2023

Entomologia Exp Applicata

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The use of particle films, especially kaolin‐based films, is a promising technology to control infestations of Mediterranean fruit fly (medfly), Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), an important pest of fruits. However, its effects on one of the most important biocontrol agents of this fly in Brazil, the parasitoid Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae), are unknown. This study aimed to evaluate the influence of mineral particle films on the oviposition behavior of D. longicaudata and to determine the success of parasitism in C. capitata using grape (Vitis vinifera L., Vitaceae) as substrate. Before the bioassays, the color characteristics, firmness, total soluble solid content, pH, and titratable acidity of the fruits were determined. Grapes were immersed in suspensions of kaolin Surround WP, kaolin 607, kaolin 608, and distilled water (control); thereafter, they were perforated, and two C. capitata third instars were inserted into the orifice. The grapes were then exposed to a female parasitoid. The frequency and duration of the following behavioral parameters of D. longicaudata were evaluated: landing on fruit, inspection, buccal contact, oviposition, cleaning, resting on fruit, and resting on cage. Furthermore, parasitism success was assessed. Mineral particle films altered the color and firmness of the grapes. The females of D. longicaudata performed all distinguished behaviors in treated and untreated grapes, except buccal contact, which was not done on the kaolin‐treated fruits. Kaolin 607 negatively affected landing, inspection, puncture, and rest behaviors; kaolin Surround WP only reduced inspection and puncture. Fruit coating with all three tested kaolin products decreased the success of parasitism of D. longicaudata, indicating that particle films applied to plant organs can affect the behavior of this natural enemy.

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Functional response and preference of Diachasmimorpha longicaudata (Hymenoptera: Braconidae) in Ceratitis capitata and Anastrepha fraterculus (Diptera: Tephritidae)

Cited by 2 publications

References 28 publications

Influence of host larval weight of Anastrepha ludens on production parameters and quality attributes in the mass rearing of the parasitoid Diachasmimorpha longicaudata

Influence of host larval weight of Anastrepha ludens on production parameters and quality attributes in the mass rearing of the parasitoid Diachasmimorpha longicaudata

Can the use of particle films for fruit protection against medfly alter the behavior of the parasitoid Diachasmimorpha longicaudata?

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