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Efficiency of neem and groundnut oils in protecting leguminous tree seeds against seed beetles in the Sahel

Efficiency of neem and groundnut oils in protecting leguminous tree seeds against seed beetles in... The objective of our study was to test the comparative efficiency of neem ( Azadirachta indica ) kernel oil, groundnut oil and a synthetic insecticide, K-Othrine®, in protecting stocks of leguminous tree seeds against seed beetles under Sahelian conditions. The following insect/seed combinations were used as models: Caryedon acaciae/Acacia nilotica, C. longispinosus/A. raddiana and C. serratus/Tamarindus indica . Neem oil, when used at concentrations of 5 to 20 ml per kg of seeds, had pronounced adulticidal and ovicidal effects which were maintained for five months. No significant fall in seed viability was observed except in the case of C. acaciae/A. nilotica . Groundnut oil, when used at concentrations of 5 to 20 ml per kg of seeds, had pronounced adulticidal and ovicidal effects which were relatively short-lived. A significant fall in seed viability was observed over five months. K-Othrine®, when used at concentrations ranging from 25 to 100 mg per kg, had high adulticidal effects which were maintained for five months. However, K-Othrine® was found to have no ovicide properties. No significant fall in seed viability was observed. This study concluded that it is possible to use neem oil, a product that can be obtained locally at low cost, to efficiently protect tree seed stocks in the Sahel. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Agroforestry Systems Springer Journals

Efficiency of neem and groundnut oils in protecting leguminous tree seeds against seed beetles in the Sahel

Cardet, C.; Kandji, T.; Delobel, A.; Danthu, P.
Agroforestry Systems , Volume 40 (1) – May 1, 1998
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References (30)

Publisher
Springer Journals
Copyright
Copyright © 1998 by Kluwer Academic Publishers
Subject
Life Sciences; Agriculture; Forestry
ISSN
0167-4366
eISSN
1572-9680
DOI
10.1023/A:1006092531845
Publisher site
See Article on Publisher Site

Abstract

The objective of our study was to test the comparative efficiency of neem ( Azadirachta indica ) kernel oil, groundnut oil and a synthetic insecticide, K-Othrine®, in protecting stocks of leguminous tree seeds against seed beetles under Sahelian conditions. The following insect/seed combinations were used as models: Caryedon acaciae/Acacia nilotica, C. longispinosus/A. raddiana and C. serratus/Tamarindus indica . Neem oil, when used at concentrations of 5 to 20 ml per kg of seeds, had pronounced adulticidal and ovicidal effects which were maintained for five months. No significant fall in seed viability was observed except in the case of C. acaciae/A. nilotica . Groundnut oil, when used at concentrations of 5 to 20 ml per kg of seeds, had pronounced adulticidal and ovicidal effects which were relatively short-lived. A significant fall in seed viability was observed over five months. K-Othrine®, when used at concentrations ranging from 25 to 100 mg per kg, had high adulticidal effects which were maintained for five months. However, K-Othrine® was found to have no ovicide properties. No significant fall in seed viability was observed. This study concluded that it is possible to use neem oil, a product that can be obtained locally at low cost, to efficiently protect tree seed stocks in the Sahel.

Journal

Agroforestry Systems – Springer Journals

Published: May 1, 1998

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