Efficacy of Seaweed Extract on Chilli Leaf Curl Virus

The important cash crop of Chilli’s (Capsicum annum L) production and yield is hampered by Chilli Leaf Curl Virus Disease (CLCVD) in Sri Lanka. To manage CLCVD several insecticides were promised against the vectors CLCV. Indiscriminate use created unwanted human health hazards. current trends plant pathology intend to boost immunity host increase resistance pathogens. Therefore, this study was conducted investigate efficacy Sea-Weed Extract (SWE) CLCVD. chilli variety Vijaya selected for experiment with five treatments a non-treated control, which arranged RBCD. Data on growth parameters, yield, aphid severity, CLCV disease severity Index (DSI) measured subjected ANOVA SAS Tukey's HSD multiple comparison test used identify best treatment combination at P <0.05. results showed that first application (SEW) 15 days after planting subsequent SWE interval + 10-15 (T4) significantly lowered DSI 40.24%, less index 5.16% highest 436.8 kg/ha. investigation concluded induces but no effect vector control. recommended better plants effective management