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Silverleaf whitefly outbreak in northern NSW (North, 16 March 2009)

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Mr McMaster says growers should practice good broadleaf weed control in and around crop areas as SLW has a very wide host range and can rapidly develop resistance to insecticides. ".. Queensland Department of Primary Industries and Fisheries (QDPI&F) entomologists have visited the area and also report cotton fields around St George are at or reaching high densities of SLW. QDPI&F graduate entomologist Zara Ludgate says the whitefly present in the.. Greenhouse whitefly (GHW) and East Australian native whitefly have been common in the past but are easy to control compared with SLW. "It is thought that increased host plant availability from a wet winter/spring, warm conditions and a decline in natural enemies due to the use of broad spectrum insecticides has contributed to the high SLW numbers," Ms Ludgate said...