Evaluation of Euphorbia-Based Formulations Against Cabbage Aphids and Chili Black Thrips;

AbstractHerbal pesticides derived from plant latex represent a promising alternative to synthetic chemicals due to their biodegradability, low toxicity, and compatibility with sustainable crop protection systems. During present study the insecticidal potential of Euphorbia tirucalli (ET 2.5% EC) and Euphorbia antiquorum (EA 2.5% EC) was evaluated cabbage aphids (Brevicoryne brassicae) and Chili black Thrips (Thrips parvispinus). Bioassays were conducted for this purpose using leaf-dip and residual film techniques. The ET 2.5% EC formulation showed higher mortality than EA 2.5% EC for both insect species, achieving >90% mortality at 2.0 % concentration within 48–72 hours. Probit analysis confirmed lower LC50 values for ET compared to EA. The thrips displayed response faster against than aphids. No phytotoxicity symptoms were observed on treated leaf tissue. The results obtained during this investigation indicated that Euphorbia latex-based EC formulations possess strong insecticidal potential and can serve as effective alternatives for integrated pest management programs targeting sucking pests.