EVALUATION OF CERTAIN VERBENACEOUS BOTANICALS AGAINST HADDA BEETLE, HENOSEPILACHNA VIGINTIOCTOPUNCTATA FABR. (COLEOPTERA: COCCINELLIDAE) ON BRINJAL UNDER LABORATORY CONDITIONS

摘要

Verbenaceous botanicals viz Vitexnegundo L.(Lagundi), Lantana camara (Aripple) Lippiageminate (Wild sage) and Clerodendron siphonanthus were evaluated for their bioefficacy against grubs and adults of hadda beetle, Henosepilachna vigintiopunctata (Fabr.) under laboratory. Results reveals that W/exseed extract proved significantly superior in causing high mortality (80.86 %) of grubs and adults of H. vigintiopunctata followed by unripe fruit extracts of Lantana (78.26%), Lantana leaves (68.83% ), Clerodendron leaves {61.9Qyo),Clerodendron root (65.70% ),Vitex leaves (65.50%), Vitex bark (64.66%),Clerodendron seed (64.16%), Lippia bark (48.93%), Lippia leaves (35.90%), respectively. Rest of the extracts showed superiority to the control whereas Lippialeaves extract showed least effective showed only 35.90% mortality of beetles. Toxic effect of Vitex negundo was due to presence of Glucononital, Z- heptatriacontanone and p- hydroxybenzoic acid resulting in significantly effective against Henosepilachna vigintiopunctata under laboratory conditions.