Publication Type

Journal Article

Journal Name

Insect Science and its Application

Publication Date

1-1-2003

Abstract

The effects of four different neem formulations (Neemros®, Neemroc EC®, Neemroc Combi and Saroneem) and a combination of Neemros® with a synthetic acaricide (Mitac®) on the twospotted spider mite (Tetranychus urticae Koch) were compared with Mitac® on tomato (Lycopersicon esculentum Mill.) leaf discs in the laboratory. The following LC50 were determined: Neemroc EC® 12.9 ml/l, Saroneem 5.8 ml/l, Neemroc Combi 1.0 ml/l and Mitac® + Neemros® 1 ml/l + 17.6 g/l. No LC50 was determined for Neemros® since the highest mortality observed was 11.4%. The combination of Mitac® and Neemros® resulted in the highest mortality after 24 hours (83.3%), followed by Neemroc EC® (78.3%), Saroneem (53.4%), Mitac® (50.8%), Neemroc Combi (38.9%), the control (4.5%) and Neemros® (0.0%). All neem formulations also caused repellence and oviposition deterrence in T. urticae. © 2003 ICIPE.

Keywords

Azadirachta indica, Lycopersicon esculentum, Neem, Oviposition deterrence, Repellence, Tetranychus urticae, Tomato, Twospotted spider mite

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