title: Efficacy and insecticidal properties of some essential oils against Caryedon serratus (Oliver)-a storage pest of groundnut.
abstract: During storage groundnut is attacked by number of stored grain pest and management of these insect pests particularly bruchid beetle, Caryedon serratus (Oliver) is of prime importance as they directly damage the pod and kernels. Hence, some essential oils were tested for their insecticidal and fungicidal properties. Highest total bruchid mortality was recorded with the application of neem oil and pongamia oil at 10% (v/w) concentration and lowest in eucalyptus oil at 5% (v/w). Number of eggs laid was recorded 2.3 in neem oil 10% (v/w) which was lowest and significantly superior over untreated control and was at par with castor oil 10% (v/w) which recorded 2.5 eggs per 100 g of groundnut pods. There was no adult emergence in the groundnut pods treated with castor oil, eucalyptus oil, neem oil and pongamia oil at 10% (v/w) concentration. Groundnut pods treated with castor oil, eucalyptus oil, neem oil and pongamia oil at 10% (v/w) and neem oil at 5% (v/w) concentrations recorded no damage to pods and kernels and also zero per cent weight loss. These oils effectively influenced groundnut bruchid establishment and reduce damage besides reduction in aflatoxin contamination.
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: G
authors.initials: G
authors.lastname: Harish
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: M V
authors.initials: MV
authors.lastname: Nataraja
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: Prasanna
authors.initials: P
authors.lastname: Holajjer
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: P P
authors.initials: PP
authors.lastname: Thirumalaisamy
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: K S
authors.initials: KS
authors.lastname: Jadon
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: S D
authors.initials: SD
authors.lastname: Savaliya
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: R D
authors.initials: RD
authors.lastname: Padavi
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: V G
authors.initials: VG
authors.lastname: Koradia
authors.affiliation: Crop Protection Unit, Directorate of Groundnut Research (ICAR), PO Box 5, Ivnagar Road, Junagadh, 362001 Gujarat, India.
authors.forename: M V
authors.initials: MV
authors.lastname: Gedia
keywords: Aflatoxin; Arachis hypogaea; Bruchid beetle; Neem oil