Abstract
Hexane and acetone extracts of Trichilia connaroides leaves were evaluated for their biological activity against the Bihar hairy caterpillar Spilosoma obliqua Walker, a destructive pest of crop, medicinal and ornamental plants. Fresh caster (Ricinus communis) leaves treated with a range of concentrations (1–10%) of the extracts were offered to 2nd instars for 120h, followed by untreated leaves until pupation. Acetone extracts exerted better growth-regulatory properties than hexane extracts, shown by morphogenic malformation and adverse effects on the insect’s larval duration, pupal duration, adult emergence and fecundity.
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Tandon, S., Mittal, A.K. & Pant, A.K. Growth-regulatory activity of Trichilia connaroides (syn. Heynea trijuga) leaf extracts against the Bihar hairy caterpillar Spilosoma obliqua (Lepidoptera: Arctiidae). Int J Trop Insect Sci 29, 180–184 (2009). https://doi.org/10.1017/S1742758409990300
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DOI: https://doi.org/10.1017/S1742758409990300