Test Some Of Concentration Extract Rolled Tobacco To Control Long Bean Pod Borer (Maruca testulali Geyer) In Plant Long Beans (Vigna sinensis L.)

Abstract

Long bean pod borer, Maruca testulalis Geyer (Lepidoptera: Pyralidae) is a major pest on long bean plants. These pests are polyfagus which has many host plants, especially in long bean plants. One alternative that can be used to minimize the application of chemical pesticides is an extract rolled tobacco (Nicotiana tabacum). The research was conducted at the Plant Pests Laboratory, Faculty of Agriculture, University of Riau from Januari 2013 until April 2013. This research used completely randomized design (CRD), with 5 treatments and 4 replications. The treatments are concentrations of extract rolled tobacco, 0 g/l of water, 0,5 g/l of water, 1 g/l of water, 1,5 g/l of water and 2 g/l of water. The result showed that the concentration of extract rolled tobacco 2 g/l concentration of water is suitable for controlling long bean pod borer, Maruca testulalis Geyer. The percentage of total mortality is 82,50 % and cause 50% mortality within 10,75 hours.