Efficacy of anti-termite extracts from four Saharan plants against the harvester termite Anacanthotermes ochraceus

Bourmita Younes, . and Cheriti Abdelkrim, . and Ould El Hadj Mohamed Didi, . and Mahmoudi Khayra, . and Boulenouar Noureddine, . Efficacy of anti-termite extracts from four Saharan plants against the harvester termite Anacanthotermes ochraceus. pp. 865-877. ISSN 1511-3701

This study aimed to examine the anti-termite potential of four Saharan plant extracts namely the apple of Sodom or rubber bush Calotropis procera; pergularia Pergularia tomentosa; jimsonweed Datura stramonium and Egyptian henbane Hyoscyamus muticus from Bechar (southwest of Algeria) on workers of the harvester termite Anacanthotermes ochraceus (Isoptera: Hodotermitidae). A direct contact application test was conducted with five fractions from aqueous extracts of each part of plant species (leaves stems) using hexane dichloromethane ethyl acetate butanol and exhausted fraction. A repellent test was realized with aqueous extracts (10) of plant species leaves and stems. According to the direct contact application test all tested plants fractions showed termiticidal activities with different degrees. Butanolic fractions presented the best effects from leaves of C. procera and P. tomentosa with median lethal time (LT‚‚) 231.03 and 244.96 min respectively. In the second test wood samples were exposed to termite attack for four weeks and the weight loss percentage was determined. The weight loss ranged from 0.034 to 16.90 at concentrations of 10 of plant extracts. The best repellent effect was obtained from leaves of C. procera (weight loss 0.034) and leaves of D. stramonium (weight loss 1.29). It was concluded that some Saharan plants are a good source of anti-termite compounds especially C. procera.

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Abstract

This study aimed to examine the anti-termite potential of four Saharan plant extracts namely the apple of Sodom or rubber bush Calotropis procera; pergularia Pergularia tomentosa; jimsonweed Datura stramonium and Egyptian henbane Hyoscyamus muticus from Bechar (southwest of Algeria) on workers of the harvester termite Anacanthotermes ochraceus (Isoptera: Hodotermitidae). A direct contact application test was conducted with five fractions from aqueous extracts of each part of plant species (leaves stems) using hexane dichloromethane ethyl acetate butanol and exhausted fraction. A repellent test was realized with aqueous extracts (10) of plant species leaves and stems. According to the direct contact application test all tested plants fractions showed termiticidal activities with different degrees. Butanolic fractions presented the best effects from leaves of C. procera and P. tomentosa with median lethal time (LT‚‚) 231.03 and 244.96 min respectively. In the second test wood samples were exposed to termite attack for four weeks and the weight loss percentage was determined. The weight loss ranged from 0.034 to 16.90 at concentrations of 10 of plant extracts. The best repellent effect was obtained from leaves of C. procera (weight loss 0.034) and leaves of D. stramonium (weight loss 1.29). It was concluded that some Saharan plants are a good source of anti-termite compounds especially C. procera.

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Item Type:	Article
AGROVOC Term:	Anacanthotermes
AGROVOC Term:	Termites
AGROVOC Term:	Asclepiadaceae
AGROVOC Term:	Sampling
AGROVOC Term:	Laboratory experimentation
AGROVOC Term:	analysis
AGROVOC Term:	Repellents
AGROVOC Term:	Plant insecticides
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/10156

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