Formulation of the newly synthesized arylidene derivative as 10 % flowable and evaluation of their insecticidal efficacy on cotton leafworm Spodoptera littoralis (Lepidoptera : Noctuidae)‎

Abstract EN

Five new acrylamide derivatives were synthesized according to standard method, their structure was elucidated using spectral techniques (IR, Mass and 1H-NMR).

Acrylamide derivatives were tested against the 2nd instar larvae of the cotton leafworm Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) under laboratory conditions.

Acrylamide (2a) showed the highest efficacy, as its LC50 was 0.967 mg/ml.

It was then formulated as 10 % flowable (suspension concentrate).

The new formula passed successfully all physical tests specified for flowables.

It was then also tested against the 2nd instar larvae of the cotton leafworm S.

littoralis under laboratory conditions; it inhibited the 2nd instar larvae of the cotton leafworm markedly, as its LC50 was 4.494 mg/ml.