Performance of the Tap-7 Genetic Sexing Strain Used to Control Anastrepha ludens Populations in the Citrus Region of Tamaulipas, Mexico

Flores, Salvador; Campos, Sergio; Gómez, Enoc; Mubarqui, Ruben Leal; Morales-Marin, Jorge Luis; Vélez, Jorge Luis; Bello-Rivera, Arturo; Montoya, Pablo

doi:10.1201/9780429355738-17

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“…Although there are few studies providing experimental field data to support this assumption, the SIT has been considered a key strategy for maintaining a low prevalence or areas free of fruit flies in different regions [ 34 , 35 , 36 , 37 ]. In the case of A. ludens , there are data that support the effect of sterile fly releases causing a significant reduction in wild populations [ 38 ], especially with the use of the genetic sexing strain Tap-7 [ 39 , 40 , 41 ].…”

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confidence: 99%

Effect of the Sterile Insect Technique and Augmentative Parasitoid Releases in a Fruit Fly Suppression Program in Mango-Producing Areas of Southeast Mexico

Cancino,

Montoya,

Gálvez

et al. 2023

Insects

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The Sterile Insect Technique (SIT), by means of sterile male releases of Anastrepha ludens (Loew), coupled with Augmentative Biological Control (ABC), by releasing the parasitoid Diachasmimorpha longicaudata (Ashmead), was evaluated in a commercial mango production area for one year. The obtained results were compared with mean fruit fly population values from two previous years without the combined use of both techniques. The treatments were: SIT + ABC, SIT, ABC, and Control, and each treatment was established in blocks of 5000 Ha separated by distances of 5–10 km. The evaluations were carried out through fruit sampling to assess percent parasitism and trapping of adult flies to obtain Flies per Trap per Day (FTD) values. The mean percentage of parasitism increased from 0.59% in the control treatment to 19.38% in the block with ABC. The FTD values decreased from ~0.129 and ~0.012 in the control block to 0.0021 in the block with SIT and ABC, representing a 98% suppression. The difference between the two periods in the control block was not significant. We conclude that the integration of both techniques resulted in an additive suppression of the pest population, supporting the use of both control techniques in an area-wide pest management context.

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