Tar Oil as a New Alternative for Controlling the Two Spotted Spider Mite, Tetranychus Urticae (Koch) Infesting Soybean Plants

Abstract

Tar oil was prepared as soluble liquid 95% and evaluated against the two spotted spider mite, Tetranychus urticae (Koch) infesting soybean plants (Glycin max) in Beni Suef Governorate and its associated predacious mites at different concentrations 1, 1.5 and 2% (V./V.). Its acaricidal effect increased with increasing concentration and time after application up to 12 days. 2% concentration was suitable for controlling the two spotted spider mite, T. urticae with less effect against predacious mites.

Tar Oil Formulation as 95 % Soluble Concentrate and Evaluation of Its Insecticidal Efficacy against Cotton Leafworm, Spodoptera littoralis and Cutworm Agrotis ipsilon (Lepidoptera: Noctuidae)

“…When produced as dustable powders, tar oil, according to recent studies, had a strong acaricidal impact against wheat grain mites (El-Sandy and El-Sisi, 2011). Amer and El-Sisi, 2011 demonstrated significant larvicidal and ovicidal effects when formulated as a soluble liquid solution against the pink bollworm and additionally effective against spider mites and cotton bollworms (Amera et al, 2013, El-Sisi et al, 2013.…”