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TAS Country : May 3rd 2012
Friday, May 4, 2012 Tasmanian Country 5 News Most rivers are pesticide-free ROGER HANSON MOST of Tasmania's rivers and streams checked in the latest round of chemical testing were free of all pesticides. In March, samples were taken from 47 locations across Tasmania under the newly modified ASCHEM pesticide monitoring program. Only four sites tested positive to several different pesticides. Department of Primary Industries, Parks, Water and Environment chemi- cal management branch manger Chri- stian Goninon said the water samples were tested for the presence of a range of agricultural chemicals. The four sites are not located in drinking-water catchments or sub- catchments used by water authorities All detections are compared against the 2011 Australian Drinking Water Guidelines (ADWG). The detections of MCPA, which is a herbicide widely used to control weeds in pasture, are below the ADWG guideline value. Herbicides Prometryn, Ethofumes- ate, Cyanazine, Dimethenamid and Clomazone are used to control both broad-leafed weeds and grasses in a range of agricultural crops. Metalaxyl-M is a fungicide used to control stem and root rot in a variety of crops, while Pirimicarb is an insecti- cide for control of aphids on crops and pastures. There are no ADWG health-based guideline drinking water values for Ethofumesate, Prometryn, Metalaxyl- M, Pirimicarb, Clomazone, Cyanazine and Dimethenamid. However, pesticides Simazine and Atrazine have ADWGs set at 20ppb. Simazine products are used for the control of a large variety of weed species in fruits, vegetables, lentils, vineyards, home gardens and non- agricultural situations. They are also used to control algae in pools, aquariums and ponds. Highlights from the latest results include: Gawler River, at West Gawler Rd: Metsulfuron-methyl at 0.11 parts per billion (ppb). Panatanna Rivulet, at Parkers Ford Rd Bridge: MCPA at 0.34ppb, Prometryn at 0.07ppb, Cyanazine at trace levels, Metalaxyl-M at trace levels, Pirimicarb at trace levels, Clo- mazone at less than 1ppb, Dimethena- mid at less than 1ppb. Sulphur Creek, 1.5km upstream mouth: MCPA at trace levels, Prome- tryn at trace levels. Tuckers Creek, at Barnbougle Rd: Protmetryn at 0.16ppb, Ethofumesate at trace levels. For the results of all 31 rounds of testing, go to www.dpipwe.tas.gov.au. Herd lameness advice online DAIRY Australia and the National Centre for Dairy Education Australia have joined forces to help farmers manage lameness in their herds. On Thursday, a free ''webinar'' will discuss lameness in cow herds. This webinar has a panel of industry experts to discuss best practice for minimising lameness and answer questions from farmers or service providers. The webinar is an online seminar, so you can attend without having to travel. For more details visit http:/ /www.dairyaustralia.com.au/lame nesswebinar. THE WORLD'S BEST RIDING, BEST VALUE MID-SIZE 2WD 340 KG TOWING CAPACITY INT G AT ONT TO AG IN P N NT A P N ION I ) IGITAL IN T NTATION WH L I 1300 654 142 www.polarisindustries.com.au $5,995 RIDE AWAY *Offers end 30th June 2012. Limited stock available. Not valid with any other offer. Excludes fleet clients. Shown with optional accessories. WEED ATTACK: A serrated tussock infestation on Droughty Hill near Hobart. Picture: DPIPWE Ms Gill said the more people who were aware of it the better. ''We had one example where a contractor was driving along the road near Deloraine and saw a tussock in flower and because he'd been working with it he knew what is was and notified us,'' she said. ''If people see something and they aren't sure it is tussock, we'd encour- age them to contact us or send us in a sample because we'd much rather have false alarms and native grass samples than miss something and find out once it's become a serious problem.'' There will be a display of serrated tussock at Agfest today.
April 26th 2012
May 10th 2012