Pest Management in Horticultural Ecosystems

Efficacy of different acaricides were tested against T. urticae infesting tomato both under laboratory and polyhouse conditions revealed that all the acaricidal treatments were significantly superior over untreated control in checking the eggs and mobile stages of mite. Under the laboratory conditions diafenthiuron 50WP was most effective with highest per cent mortality of spider mite and maximum ovicidal effect. Under the polyhouse conditions diafenthiuron 50 WP was found most effective in reducing the eggs and mobile stages of T. urticae while the treatment wettable sulphur 80 WP was found least effective against both eggs and mobile stage. On the basis of net ICBR, diafenthiuron stood first (1:10.50) among all theacaricidal treatments.