Insecticidal activity of four different substances against larvae and adults of sycamore lace bug (Corythucha ciliata [Say], Heteroptera, Tingidae)

Authors

  • Helena ROJHT Chair of Phytomedicine, Agricultural Engineering, Crop Production, Grassland and Pasture Management, Jamnikarjeva 101, SI- 1111 Ljubljana, Slovenia
  • Anja MEŠKO Chair of Phytomedicine, Agricultural Engineering, Crop Production, Grassland and Pasture Management, Jamnikarjeva 101, SI- 1111 Ljubljana, Slovenia
  • Matej VIDRIH Chair of Phytomedicine, Agricultural Engineering, Crop Production, Grassland and Pasture Management, Jamnikarjeva 101, SI- 1111 Ljubljana, Slovenia
  • Stanislav TRDAN Chair of Phytomedicine, Agricultural Engineering, Crop Production, Grassland and Pasture Management, Jamnikarjeva 101, SI- 1111 Ljubljana, Slovenia

DOI:

https://doi.org/10.14720/aas.2009.93.1.14892

Keywords:

Corythucha ciliata, sycamore lace bug, rosemary, thujone, imidacloprid, deltamethrin, efficacy, mortality, larvae, adults, laboratory testing

Abstract

In a paper the results of insecticidal activity of two known insecticides (deltamethrin and imidacloprid), thujone and essential oil of rosemary against the larvae and adults of sycamore lace bug (Corythucha ciliata) are presented. The experiment was conducted in a laboratory, under room conditions. We tested the activity of each product in three different concentrations. The most desirable insecticidal activity had deltamethrin, which caused almost 100 % mortality of both developmental stages of the pest at all three concentrations. Succeeding products were imidacloprid, which caused 89.6 % larval mortality at recommended concentration, and essential oil of rosemary, which caused 81.7 % adult mortality at 1 % concentration. Larvae of sycamore lace bug were significantly more susceptible to tested products than adults. Significantly the lowest mortality was determined one day after treatment (41.7 %), while the highest mortality was stated three days after treatment (71.3 %). For future reduction of the damage caused by the studied pest on plane trees, we recommend the application of thujone and essential oil of rosemary, which appeared to be environmentally more acceptable substances. In our study both agents showed a middle satisfying activity in controlling larvae and adults, but they have also obvious repellent activity, which leads to their better efficacy in the open.

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Published

15. 05. 2009

Issue

Section

Original Scientific Article

How to Cite

ROJHT, H., MEŠKO, A., VIDRIH, M., & TRDAN, S. (2009). Insecticidal activity of four different substances against larvae and adults of sycamore lace bug (Corythucha ciliata [Say], Heteroptera, Tingidae). Acta Agriculturae Slovenica, 93(1), 31–36. https://doi.org/10.14720/aas.2009.93.1.14892

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