Feed Lot

JUN 2018

Feedlots and cow/calf operations in the beef industry who feed 500 or more has annually on grains and concentrates; maintain 500 or more beef cows; backgrounder, stocker/grower, preconditioner; veterinarian, nutritionist, consultant

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12 FEED•LOT June 2018 adjusting the nozzle on the spray- er according to the type of spray (quick kill or residual). For a re- sidual spray, a larger droplet size will offer longer lasting effects (you want the areas to be wet). A finer mist or fog is more appropriate for quick kill sprays. Nelson also suggests watching the weather forecast before spray- ing. "If it rains, you automatically will have to spray again. But the most important aspect is start ear- ly. Waiting until you have a big problem is always a harder battle to fight." Some sprayers can be used for various other jobs at the feed yard, depending on the type and model of sprayer. "Our sprayer has a flush back system so you can clean it between applications, and use it to spray for weeds, too," Nelson said. Using premise sprays as part of a pest control management plan can make an impact in flies at your operation. Decide which type of flies are problems and target those accordingly. Coordinating sprays with other practices such as mow- ing and cleaning, as well as other pest management practices will deliver the best results. FL Remove Breeding and Resting Areas It sounds simple, but cleaning and mowing go a long way, says Hawkins. Removing the breeding and resting areas for flies cuts down on the number at a facility and re- duces the number of areas to spray. House flies breed in any kind of filth, like manure, decaying feed under feed bunks, trash outside the break room, etc. Stable flies breed in decaying vegetation, like the slop off the bottom side of a round bale of hay, or old hay at the bottom of a hay ring. They can also breed in a pile of spoiled silage on the ground next to the pit or silage that was thrown off the top. "Routinely cleaning up spilled feed and trash will make a signifi- cant impact on the fly population. Mowing weeds also reduces the ar- eas flies have to rest," Hawkins said. Cleaning pens for both manure and spilled feed, including those hard-to-reach spaces like under feed bunks and beneath fence rails, will make the area less fly friendly. Hawkins said to pay attention to runoff if rain washes manure down a back alley. The residue is the perfect breeding area for flies and is often overlooked. Quick Kill vs Residual Spray Both residual and quick kill sprays have important roles in controlling flies. If the current fly population is bad, a quick kill spray will reduce the number of adult flies immediately. Spraying along the exterior of bunks and bunk rails, as well as along the backside of the pen and along the legs of bunched up cattle will help reduce the adult population. However, quick kill sprays do nothing for flies that will hatch in a few days. Residual sprays can last a week or more and help target existing and newly hatched flies. Residuals are most effective if used in fly rest- ing areas. "Stable flies take three or four blood meals and then rest somewhere nearby. They don't fly far and aren't very aerodynamic, so spraying areas close to cattle are key. Fence lines, eaves and over- hangs of buildings are all important areas to spray," Hawkins said. Nozzle Selection General manager of A1 Mist Sprayers, Steve Nelson, suggested PHOTO COURTESY OF A1 MIST SPRAYERS PEST AND PARASITE CONTROL Get The Most... from previous page

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