Daily Activity ofScyphophorus acupunctatus(Coleoptera: Curculionidae) Monitored with Pheromone-Baited Traps in a Field of Mexican Tuberose

Abstract

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Amount and Bagging of the Bait Food Affect the Captures ofScyphophorus acupunctatus(Coleoptera: Curculionidae) by Pheromone-Baited Traps

“…In all experiments, more females than males were captured, although the sex ratio for S. acupunctatus on agave plants is 1:1 (Figueroa-Castro et al 2013). Previous studies have reported similar results when trapping this weevil species in agave and Mexican tuberose crops (Ruiz-Montiel et al 2008, López-Martínez et al 2011, Rodríguez-Rebollar et al 2012, Figueroa-Castro et al 2013, Figueroa-Castro et al 2016a. Our results indicate that the synthetic aggregation pheromone could be responsible for attracting more females than males to the traps because traps without pheromone (i.e., agave tissue alone) captured equivalent proportions of females and males.…”

Attraction Range and Inter-Trap Distance of Pheromonebaited Traps for MonitoringScyphophorus acupunctatus(Coleoptera: Dryophthoridae) on Blue Agave

“…These results agree with those of Ruiz-Montiel et al (2008), who studied trapping of S. acupunctatus in plantations of blue agave and found that pheromone-baited traps captured more females than males. López-Martínez et al (2011) studied the daily activity of S. acupunctatus by using pheromonebaited traps in a commercial field of Mexican tuberose plant P. tuberosa and captured more females than males. Figueroa-Castro et al (2013), working in blue agave plantations in Jalisco, Mexico, found that the sex ratio of S. acupunctatus populations sampled in agave plants was 1:1, but pheromone-baited traps placed in the same plantations captured more females than males.…”

Determining the Best Pheromone-Baited Traps for CapturingScyphophorus acupunctatus(Coleoptera: Dryophthoridae) in Mezcal Agave

“…Until now, 3 types of promising pheromone and food attractant based traps have been tested for monitoring agave weevil in Mexico; on Jalisco State's blue agave, the TOCCI and TOCCIA traps were evaluated by Bravo-Pérez (2009) and Figueroa-Castro (2014). A 20 L container trap was tested by Azuara-Domínguez et al (2014), and a 5 L container trap was tested on P. tuberosa 'Perla' (Asparagaceae) by López-Martínez et al (2011) and García-Ramírez et al (2014).…”