GEMSTAR EXTREME

10 Thousand Million / mL Polyhedral Occlusion Bodies (OBS) of the Nuclear Polyhedrosis Virus Of Helicoverpa zea. Gemstar Xtreme has been specially designed for use in IPM systems. It is a biological insecticide and hence its efficacy is dependent on environmental conditions, application and feeding behaviour of the pest. For this reason, when environmental, crop microclimatic or other conditions are unfavourable for Gemstar Xtreme, control of the pest may be below expectations. The product acts slowly and can take up to 8 days to kill larvae. Speed of kill and efficacy are dependent on climatic conditions.