Integrated Management of Two-Spotted Spider Mite, Tetranychus Urticae (Koch) on Tomato Grown under Polyhouse

Different integrated management modules were evaluated for the control of Tetranychus urticae (Koch) on tomato grown under polyhouse cultivation at the Indian Institute of Horticultural Research, Hessaraghatta, Bangalore. Results indicated that application of module 2 (abamectin followed by wettable sulphur and abamectin) was most effective (1.23–2.08 mites per leaf) in controlling the T. urticae followed by module 1 (dicofol folfowed by wettable sulphur and dicofol) (4.05–4.23 mites per leaf) and module 3 (dicofol followed by pongamiaoil and neem seed kernal extract (4.68–4.80 mites per leaf) in first two trials (Sept. 2002-Mar. 2003 and Jun. 2003-Dec. 03). However, during third trial (Mar. 2004-Sept. 2004) all the revised modules viz., spray of dicofol followed by wettable sulphur and dicofoo (M₁), abamectin followed by fenazaquin and abamectin (M₂), fenazaquin followed by neem seed powder extract and oxymetrin (M₃) including organic module oxymetrin followed by neem soap and pongamia oil (M₄) were significantly superior.