SciELO - Scientific Electronic Library Online

 
vol.33 issue3CHARACTERIZATION AND BOTANICAL CLASSIFICATION OF TWENTY-TWO PEANUT LINES (Arachis hypogaea L.) EVALUATED IN ÑUBLE PROVINCE, CHILE author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Chilean journal of agricultural & animal sciences

Print version ISSN 0719-3882On-line version ISSN 0719-3890

Abstract

CURKOVIC, Tomislav; VERGARA, Javier; ARAYA, Jaime E.  and  CONTRERAS, Américo. SELECTIVE ATTRACTION OF Vespula germánica (Hymenoptera: Vespidae) TO FEEDING BAITS ENHANCED WITH ISOBUTANOL AND ACETIC ACID. Chil. j. agric. anim. sci. [online]. 2017, vol.33, n.3, pp.195-201. ISSN 0719-3882.  http://dx.doi.org/10.4067/S0719-38902017005000601.

Vespula germánica (F.) has a negative impact on agriculture, beekeeping, and tourism in Chile. Therefore, environmentally-friendly strategies need to be implemented to control this serious pest. The objective of this study was to evaluate the response of adults of V. germanica to different types of baits with acetic acid + isobutanol (AAIB) added. The selected baits were: blood and bone flour (BF), raspberry jam (RJ), and sweet condensed milk (CM). The trial was conducted in a severely infested site in central Chile. Mixtures were placed in bottle traps. All of the traps were monitored daily from Monday to Friday during 5 weeks, and rebaited every week. A randomized complete block design, with 12 treatments and 4 replicates was used. Captures of V. germanica and other social hymenopterans were identified and data were recorded; V. germanica individuals approaching the trap openings (= visits) were also counted. A number of 15,480 V. germanica individuals, which were mostly workers, were captured. The most attractive baits were CM and BF + 2 mL AAIB. Feeding baits attracted significantly more workers with increasing concentrations of chemicals (AAIB), and significantly more wasps than the feeding baits alone. Lesser captures occurred of Apis mellifera workers (1,046), while the preference trend differed from that observed for V. germanica in several treatments. A number of 854 Polistes buyssoni workers were captured, but no differences were found between treatments. In addition, a number of 466 V. germanica visited the traps, but the trend observed with captures only occurred in traps baited with BF + AAIB, whereas no preference trend was observed for mixtures with RJ and CM. The results indicate that these attracting baits can be used not only to massively and selectively capture and destroy adults of V. germanica, but also to develop feeding baits not attractive for A. mellifera.

Keywords : Apis mellifera; Polistes buyssoni; yellowjacket; baits; mass trapping; monitoring.

        · text in English     · English ( pdf )