The Toxic Effect of Magnetic and Non- Magnetic Cinnamic Essential Oil against the Cotton Leafworm, Spodoptera littoralis

Shehata, Eman A.; Mostafa, Inas M. Y.; Aziz, Wessam Z.; Abd- Allah, Ghada E.

doi:10.21608/eajbsf.2019.52183

The Toxic Effect of Magnetic and Non- Magnetic Cinnamic Essential Oil against the Cotton Leafworm, Spodoptera littoralis

Document Type : Original Article

Authors

Plant Protection Research Institute, Dokki, Giza, Egypt

10.21608/eajbsf.2019.52183

Abstract

In lab-experiment to declare the effect of static magnetism on the essential cinnamic oil and comparing its effect with non- magnetic cinnamic essential oil and the insecticide, cymax 50% on 2^nd instar larvae of the cotton leafworm, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae). Due to the problems of chemical pesticides to all organisms and environment, natural control replaced pesticides. Results proved that magnetic cinnamic oil is the most effective material than the non- magnetic cinnamic essential oil and the insecticide cymax 50% with LC₅₀926.57ppm 4636.11 ppm for magnetic and non- magnetic cinnamic oil, respectively. Although LC₅₀for cymax 50% was 101.65 ppm, which was lowest than magnetic and non- magnetic cinnamic oil, but the highest concentration of this insecticide caused only 50% mortality for 2^nd instar larvae of S. littoralis, in addition to its toxicity on plants, people and environment. So the magnetism which improved the properties of essential cinnamic oil proved its effectiveness on 2^nd instar larvae of S. littoralis.

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