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NPV a New Biological Control for Armyworm in Tanzania

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NPV a New Biological Control for Armyworm in Tanzania Improved armyworm control is linked to the This leaflet is an output from a research development of a forecasting system. This project R8408 funded by the United Kingdom incorporates local village level scouting using Department for International Development for United Republic of Tanzania Ministry of Agriculture and pheromone traps that specifically attract the the benefit of developing countries. The views Food Security armyworm male moths using the artificial expressed are not necessarily those of DFID scent of mating armyworm females. Crop Protection Programme. NPV a new The catches of armyworm in these traps when Produced by the Ministry of Agriculture and combined with satellite weather data and Food Security, Pest Control Services, Tanzania biological control armyworm population models are used to and Natural Resources Institute, UK. forecast armyworm outbreaks. for Armyworm in Tanzania For further information please contact: Wilfred Mushobozi Pest Control Services PO Box 7473 Arusha Tanzania Tel: (255) 27 2553249 E-mail: [email protected] David Grzywacz Natural Resources Institute University of Greenwich at Medway Central Avenue Chatham Maritime Kent ME4 4TB, UK Tel: +44 1634 883360 E-mail: [email protected] Community Pheromone Trap African armyworm is a major pest in NPV development in Tanzania NPV can be produced cheaply Tanzania and East Africa that causes While NPV can kill armyworm naturally it NPV can be made by spraying early outbreaks large scale damage to cereal crops spreads too slowly naturally to stop damaging with NPV. The insects that die afterwards are and pasture. outbreaks of armyworm attacking crops. Work full of NPV. These can be collected then is now underway to evaluate spraying crushed to release the NPV which can be used outbreaks of armyworm with the NPV in to spray more outbreaks. This way NPV can be What is NPV? Tanzania to see if it can be used to control produced much more cheaply than the cost of There is a natural disease (the NPV) that armyworm without the use of expensive and chemical insecticide. NPV produced in one causes massive epidemics killing armyworm risky chemical insecticides. year can be stored so that it is available for the and helping to control its outbreaks. The NPV next year. disease is caused by an insect virus that The trials of NPV both applied by both ground occurs naturally in Tanzania. When NPV spraying and aerial application have shown It is hoped this work will provide a new, safe infects armyworm outbreaks, dead insects that spraying NPV onto armyworm can kill off control method for armyworm that can be can be seen hanging from plants. the outbreaks of armyworm before they do produced and used in Tanzania. This would be serious damage. These trials have shown that much cheaper than insecticides and so there This dead insect will contain 2000 million NPV can be as effective in controlling will be enough for all the needs of all farmers. infective particles each capable of infecting armyworm as chemical insecticide. The NPV and killing another armyworm. Each insect does takes longer to kill than chemical killed by an NPV spray will be a new source of insecticides, 3–5 days, but infected NPV to spread and continue control. armyworms stop feeding before they actually die preventing serious damage. The NPV can Is NPV safe to us? be used just like a normal insecticide and requires no special equipment. Yes. The NPV only infects the armyworm and cannot harm man, domestic animals, plants or even other insects. A recent international report concluded NPV use is safe and does not cause any health hazard. Armyworm killed by NPV Ground application of NPV Aerial spraying of NPV .
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