Comparative efficiency of traps for horse fly (Diptera: Tabanidae) survey in riparian oak-ash forests in Danube floodplain

Abstract

Abstract. The objective of this work was to evaluate the relative trap effi ciency of the three modifi ed traps baited with 1-octen-3-ol as attractant, Box, Nzi and Canopy, for horse fl y (Tabanidae) survey. Nine traps (three traps per trap type) were tested in 3 × 3 Latin square designs during summer 2011 in riparian oak-ash forests in the Danube fl oodplain of Croatia. Overall, the traps caught 1,986 specimens of 11 horse fl ies species during the study period. The most abundant species caught was Tabanus bromius (58%), followed by Tabanus tergestinus (21%), Tabanus maculicornis (16%), Tabanus sudeticus (2%), Atylotus loewianus (1%) and Tabanus autumnalis (1%). Both the Box traps and the Nzi traps had signifi cantly greater catch effi ciencies than the Canopy traps (β box = 2.47, X 2 = 65.48, df = 1, P < 0.001 and β nzi = 1.54, X 2 = 25.12, df = 1, P < 0.001, respectively). Nzi traps had a catch rate 4.65 (95% CI: 2.55, 8.48) times greater than Canopy traps and Box traps had a catch rate 11.77 (95% CI: 6.48, 21.39) times greater than Canopy traps. Based on Shannon-Wiener diversity indices Nzi traps were better suited for diversity survey and had higher (H' = 1.33) indices than Box (H' = 1.08) or Canopy traps (H' = 1.00).

Diversity of insects in conventional and organic tomato crops (Solanum lycopersicum L., solanaceae)

“…The Tabanidae family are dipterans of veterinary and medical interest. Those that are ectoparasites of horses, prefer dark brown and reddish brown animals (Bassi et al, 2000;Mikuška et al, 2016). Santos et al (2008b) points out that insects can be (2012) highlight that yellow and black may be repellent to some families and attractive to others.…”

A comparison of the Nzi, Horse Pal®and Bite-Lite®H-traps and selected baits for the collection of adult Tabanidae in Florida and North Carolina

“…In that study, the Nzi trap consistently caught 4.5 times more tabanids than canopy traps, with a 1.5-fold increase in species richness compared with the canopy trap. The most recently reported study which compared the Nzi trap with other trap types was conducted in Croatia (Mikuska et al 2016). In this study, the relative efficiency of three trap types (Box, Canopy, and Nzi) all baited with octenol as an attractant was evaluated.…”

“…In our studies, the Nzi trap significantly outperformed the canopy traps only in an open environment free of trees and brush. Mikuska et al (2016) suggested that these results may be attributed to two features of trap construction and design: trap opening size/position and attractant release rate. Box traps have a 1 m 2 opening on the bottom of the trap and the trap is placed 50 cm above the ground; this large, accessible opening allows tabanids to enter the trap from all sides.…”

Efficiency of six different octenol‐baited traps for collecting horseflies (Diptera: Tabanidae)

“…These data support the results of our study, where the Nzi trap collected a mean of 32.6 horseflies per trapping period, while the canopy trap collected 23.8 horseflies per trapping period. Results from trap comparison studies performed in the area of Kopački rit Nature Park, showed that the Nzi traps collected 4.6 times more horseflies than the canopy traps (Mikuška et al ., 2016). Another study in easteren Croatia also confirmed Nzi traps were more efficient in collecting horseflies in comparison with Malaise traps Townes design (1972).…”

“…However, in the area of Kopački rit Nature Park a very high trapping efficiency of modified box traps was recorded. Modified box traps collected 2.53 times more horseflies than Nzi traps and 11.77 times more than canopy traps (Mikuška et al ., 2016). In our current study, the differences between these traps were considerably lower.…”