HOW TO USE THIS ONLINE MAGAZINE
by clicking the arrows at the side of the page.
by clicking anywhere on the page. A slider will appear, allowing you to adjust your zoom level.
and move the page around when zoomed in by dragging the page.
and return to the original size by clicking on the page again.
by entering text in the search field and click on "In This Issue" or "All Issues" to search the current issue or the archive of back issues
a PDF of this magazine.
by clicking on thumbnails to select pages, and then press the print button.
a page via email, Facebook, Twitter and more.
TO VIEW PREVIOUS EDITIONS
, click the
button at the bottom of the screen.
Beyond the Bale : March 2016
ON FARM 33 HAND JETTING Advantages With good technique, hand jetting is the most thorough long wool flystrike treatment, and the protection provided by jetting products is likely to be greater when applied by hand jetting. Disadvantages Jetting for lice is not an option if eradication is the goal; the lice population on the sheep can only be suppressed, as it is not possible to completely wet the sheep to the skin over the entire body, which is essential for eradication. Other disadvantages: • It is slow, hard work. • Thoroughness of the method declines as the operator tires. • High chemical residues can be left in the fleece. • The operator requires good quality, comfortable personal protective equipment. • Access to water, a concrete-floored race and good jetting equipment, including a suitable pump, is needed. • Jetting handpieces vary in their efficiencies. • Exposure to chemical concentrate is high as the operator needs to dilute the concentrate. AUTOMATIC JETTING RACE Advantages Automatic jetting races are much faster than hand jetting, and a great deal less work. Because they remove the need for the operator to stand in the race with the sheep, the operator can stand back from the machine, thereby reducing exposure to insecticides – provided they are set up and working properly and efficiently. Disadvantages Automatic jetting races do vary widely in their efficiencies. It is essential that they have an adequate sized pump and are set up properly – including being adjusted to the size of the sheep. Other disadvantages: • Plentiful clean water is required. • Exposure to chemical is high, from both diluting concentrate and from moving stalled sheep. • Penetration of chemical into the wool (especially with long wool) is less effective than hand jetting. • There is a need to dispose of spent/unused jetting fluid. • Needs to be set up well to encourage consistent and moderate flow rate of sheep through the race. SPRAY-ONS AND BACKLINE PRODUCTS Advantages Their ease of application and simple to use, inexpensive equipment has made these very popular. They can also be applied with a power-assisted applicator, which helps ensure consistency and reduces operator fatigue. Safety is improved because exposure to chemical tends to be lower as products come ready for direct application (no dilution or mixing required) and there is no splash or spray. Also, no water or power is required, making it suitable for yards where large quantities of clean water and/or power are not available. As there is no dipwash, only the empty containers need disposal. They can be used for both lice eradication (when applied to short wool) as well as suppression of lice in long wool and prevention of flystrike on short or long wool. Disadvantages Their major disadvantage is the cost of the chemical product. The applicator must also be matched to the product and while application appears to be simple it takes some practice and must be done carefully. Spray-on flystrike preventative products do not spread, so must be applied where the protection is required. MORE INFORMATION For further information on fly and lice treatments, choose the Treatments section of FlyBoss at www.flyboss.com.au and LiceBoss at www.liceboss.com.au Backline applications are convenient and fast. PHOTO: Peter James BEST PRACTICE ADVICE FOR MANAGING SHEEP PARASITES ParaBoss is a suite of three products – WormBoss, FlyBoss and LiceBoss – developed to help sheep producers in the management of worms, blowflies and lice. The WormBoss, FlyBoss and LiceBoss websites are sources of detailed management information and regional programs that will assist in managing the major parasite risks for sheep. The websites have been developed by expert panels of parasitologists and veterinarians from across Australia. ParaBoss provides access to the three websites at www.paraboss.com.au. Subscribe to ParaBoss News, the twice monthly free email newsletter with state outlooks on the current state of sheep parasites as well as feature articles and the quick quiz to test your knowledge of sheep parasites. You can register on the ParaBoss website. Join us on Facebook at www.facebook.com/paraboss.com.au to see weekly posts on flystrike, lice and worm control. ParaBoss is funded by AWI and MLA and coordinated by the University of New England with industry oversight. MORE INFORMATION www.paraboss.om.au
In the Shops - March 2016