Acaricidal Activity of Ethulia conyzoides Extracts and Constituents against Tetranychus urticae Koch

  title={Acaricidal Activity of Ethulia conyzoides Extracts and Constituents against Tetranychus urticae Koch},
  author={A. M. Dawidar and M. Abdel-Mogib and M. El-Naggar and M. Mostafa},
  journal={International Journal of Science and Engineering Applications},
The acaricidal potential of Ethulia conyzoides L. aerial parts extracts as well as its isolated compounds were investigated against larvae and adults of Tetranychus urticae Koch under laboratory conditions. Chromatographic separation of the extracts gave 3-O-acetyl lupeol, lupan-3-ol, ethuliacoumarin (1) and 7-O-methyl apigenin (Genkwanin), besides a mixture of isoethyliacoumarin A (2), isoethuliacoumarin C (3). The biological evaluation results indicated that ethyl acetate fraction and… Expand
1 Citations

Tables from this paper

Pesticide Alternatives Use in Egypt: The Concept and Potential
Pest management programs include physical, mechanical, cultural, and legislative strategies, resistant varieties, activation of host plant defense mechanisms, biological control agents, and syntheticExpand


The molluscicidal activity of coumarins from Ethulia conyzoides and of dicumarol.
The molluscicidal principles of Ethulia conyzoides were identified as ethuliacoumarin A and isoethuliacous A and the anticoagulant dicumarol was tested and found to be molluskicidal in the range from 2.5 to 10 ppm. Expand
Isolation and Characterization of Polygonum equisetiforme Flavonoids and Their Acaricidal Activity against Tetranychus urticae Koch.
All the five isolated flavonoids showed acaricidal activity using leaf-dip technique against T. urticae Koch larvae in the following decreasing activity order; quercetin (LC50 =11.28 ppm), avicularin (46.72 ppm), isoquercitrin (63.77 ppm), myricitrin(169.66 ppm) and betmidin (188.11 ppm). Expand
Antibacterial activity of two new monoterpene coumarins from Ethulia conyzoides.
Genkwanin and iridoid glycosides from Leonurus turkestanicus
Leonurus cardiaca L. (Labiatae) and L. quinquelobatus Gilib. are used in galenics as sedative and hypotensive agents [1]. Two species of Leonurus are indigenous to Uzbekistan, L. turkestanicus V.Expand
Anthelmintic coumarin from Ethulia conyzoides var. gracilis Asch. & Schweinf.
The alcoholic extract of aerial parts of Ethulia conyzoides var. gracilis Asch. & Schweinf. exhibits a significant anthelmintic activity when tested in vitro against Ascaris lumbricoides usingExpand
Further monoterpene 5-methylcoumarins and an acetophenone derivative from Ethulia conyzoides
Abstract Re-investigation of the aerial parts of Ethulia conyzoides from Egypt afforded two new monoterpene 5-methylcoumarins, namely 5′-epi-isoethuliacoumarin B and 5′-epi-isoethuliacoumarin A, andExpand
A Chemical Study on Phyllanthus reticulatus
A phytochemical study was conducted on the leaves of Phyllanthus reticulatus obtained from a riverside in Taman Negara Kuala Koh, Kelantan. The separations of the chemical components were carried outExpand
Free radical scavenging and total antioxidant capacity of methanol extract of Ethulia conyzoides growing in Nigeria
  • 2012
Antioxidant activity of methanol extract of Ethulia conyzoides was evaluated using the free radical scavenging activity of the 1, 1-diphenyl-2-picrylhydrazyl radical (DPPH), total antioxidantExpand
Antioxidant and anti-inflammatory assays confirm bioactive compounds in Ajwa date fruit.
The soluble protein fraction of Ajwa dates was also very active in both antioxidant and anti-inflammatory assays, and Bioactivity-guided purifications afforded compounds 1-7, in addition to phthalates and fatty acids. Expand
The role of botanicals as green pesticides in integrated mosquito management - A review
As the role of botanicals as mosquitocides has been found to be promising in preliminary screenings, recent technological developments in isolation and standardization of herbal pesticides need to gear up. Expand