June 2017

Pathophysiological effects of Neem (Azadirachta indica) derivatives to Rhipicephalus appendiculatus, the tick vector for Theileriosis (East Coast Fever)

The effects of 2 Neem derivatives, Neem oil (NO) and Neem Seed Powder (NSP), on various physiological parameters of the brown ear tick, Rhipicephalus appendiculatus, the vector for Theileria parva. Neem oil was applied on rabbit ears using a fine brush, whereas NSP was mixed with rabbit pellets at various concentrations and fed on goats on which various instars of the tick were allowed to feed. Tick larvae smeared with...

Author(s): Godwin P. Kaaya and Marius Hedimbi  

June 2017

Acaricidal activity of Chrozophora oblongifolia on the two spotted spider mite, Tetranychus urticae Koch

The acaricidal activity of Chrozophora oblongifolia (Delile) Spreng. (Euphorbiaceae) extracts collected from Dakhla Oasis, Western Desert of Egypt was examined against larvae and adult females of Tetranychus urticae Koch (Acari: Tetranychidae). Acaricidal activity-guided isolation of methylene chloride, ethyl acetate, butanol fractions resulted in separation and identification of p-hydroxybenzaldehyde (1),...

Author(s): Mohamed Elhosieny Mostafa, Maha Mohamed Alshamy, Ahmed Abdelmonem and Mamdouh Abdel-Mogib