Toxicity of some medicinal plant extracts to Pieris brassicae and combined effects with Proteus® against Brevicoryne brassicae

Authors

  • Fereshteh Khorrami Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia
  • Asmar Soleymanzade Department of Plant Protection, Faculty of Agriculture, Urmia University, Urmia
  • Maryam Forouzan Plant Protection Research Department, West Azarbaijan Agricultural and Natural Resources Research Center, AREEO, Urmia

Keywords:

cabbage pests, botanical insecticide, insecticidal activity, synergistic effect

Abstract

Brevicoryne brassicae (Homoptera: Aphididae) is a considerable pest of cabbage. Pieris brassicae (Lepidoptera: Pieridae) exist in most countries where cabbages are cultivated. In this research, we were examined the synergistic interaction between Satureja hortensis L., Trachyspermum ammi I. Sprague, Ziziphora tenuior L., Cuminum cyminum L. and Foeniculum vulgare Mill. methanolic extracts with Proteus® against B. brassicae adults and toxicity of mentioned extracts to eggs and second instar larvae of P. brassicae under laboratory conditions. Probit analysis of extracts showed that the most effective extracts were ziziphora and savory which both exhibited LC50 values on adults of B. brassicae equivalent to 26.66 ppm. Methanolic extracts (except fennel) synergized the performance of Proteus®. Treated eggs of P. brassicae by methanolic extract of ziziphora elicited the lowest percentage of hatching rate. Studying of toxicity of extracts to 2nd instar larvae of P. brassicae demonstrated that ammi, cumin and savory 5% methanolic extracts exhibited the highest efficacy to the pest.

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Published

2018-01-13

How to Cite

Khorrami, F., Soleymanzade, A., & Forouzan, M. (2018). Toxicity of some medicinal plant extracts to Pieris brassicae and combined effects with Proteus® against Brevicoryne brassicae. Journal of Phytopathology and Disease Management, 4(3), 50–55. Retrieved from https://ppmj.net/index.php/ppmj/article/view/106

Issue

Vol. (4), Issue (3)

Section

Research Articles

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