Insecticidal activity and structure–activity relationship of sugar embedded macrocycles for the control of aphid (Aphis craccivora Koch)

Abstract

Toxicity of sugar embedded macrocycles was evaluated for their toxicity against nymphs of aphid, Aphis craccivora Koch (Hemiptera: Aphididae) in the laboratory conditions. Most of the compounds showed toxicity to A. craccivora. However, the activity of different macrocycles varied depending on the nature and position of various functional groups possess by these compounds. Results revealed that among them, compound 3c found more effective for the control of A. craccivora (LC₅₀ = 413 mg L^–1) and was followed by 3b (LC₅₀ = 442.62 mg L⁻¹) and 3e (LC₅₀ = 480.19 mg L⁻¹).

Keywords:

• Macrocycles
• structure activity relationship
• toxicity
• aphid
• Aphis craccivora

Acknowledgments

The authors thank Director, CSIR-IHBT, Palampur (HP) for encouragement and support. RR thanks CSIR, New Delhi for research fellowship. IHBT communication number for the article is 4214.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

Authors also grateful to Council of Scientific and Industrial Research, New Delhi for funding.