Efficiency of pheromone traps for monitoring Diabrotica virgifera virgifera LeConte |
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| Authors: | L Schaub L Furlan M Tóth T Steinger L R Carrasco S Toepfer |
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| Institution: | 1. Agroscope Changins‐W?denswil ACW, CP 254, 1260 Nyon (Switzerland);2. e‐mail: lukas.schaub@acw.admin.ch;3. Veneto Agricoltura, Legnaro (Italy);4. Plant Protection Institute, Hungarian Academy of Sciences, Budapest (Hungary);5. Department of Statistics and Applied Probability, National University of Singapore (Singapore);6. CABI Europe‐Switzerland, c/o Plant Protection Directorate, Hodmezovasarhely (Hungary) |
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| Abstract: | Mark–release–recapture trials with male western corn rootworm Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae) beetles were conducted to better understand capture data of pheromone traps produced in Europe during monitoring programmes. Median recapture rate in maize fields in Hungary, Italy and Switzerland was 10%. Two types of sex pheromone trap (sticky sheet and non‐sticky container traps), placed inside or outside maize fields, showed no differences in efficiency. Logit analyses of recapture data in maize showed that at distances of <1 m fewer than 20% of beetles ended up in the traps. A beetle in a 1 ha maize field would have about a 5% chance of being caught in a trap placed in the centre of the field. |
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