Sugarcane Aphids

first_imgSugarcane aphids have turned their back on their namesake and become a major pest for Georgia’s grain sorghum growers. The pest began infesting fields in the state two years ago and, last year, devastated farmers who chose not to apply spray controls, said University of Georgia small grains entomologist David Buntin. “Farmers who didn’t spray last year didn’t harvest a yield, and others had to spray three to four times,” said Buntin, a UGA College of Agricultural and Environmental Sciences researcher based on the university’s campus in Griffin, Georgia. Similar in appearance to the yellow sugarcane aphid, Buntin describes the pest as medium to pale yellow with black feet, black antennae and two black “tail pipes.” The adult aphid has black stripes on the wings, making it very distinctive.The pest was discovered in the United States near Beaumont, Texas. In 2013, it was found in four states and 38 countries. By 2015, sugarcane aphids were found in 17 states.In 2013, the insect shifted from its preferred host, sugarcane, to sorghum. “They’ll attack anything that has sorghum in the name, and Johnsongrass is their main alternative host,” Buntin said. The pest does not like wheat, oats, barley, rye, switchgrass or cool-season grasses.“All the females are born pregnant, and they have a very high reproduction rate. The good news is that they don’t overwinter in Georgia, and they are not known to transmit any viruses,” Buntin said. “They like it hot and dry.”Sugarcane aphids colonize on the undersides of leaves. Generally, by the time a farmer notices the pest, “the damage has been done,” Buntin said. Left untreated, the pest will reduce or prevent the plant’s head from emerging.In addition to destroying a farmer’s crop, they also cause annoying damage. “They create a lot of sticky honeydew that can really make a mess of harvesting equipment,” he said. The sugarcane aphid’s natural enemies include a host of lady beetles, hoverflies, green lacewings and a parasitoid.Studying the pest in research plots on UGA CAES research farms, Buntin determined farmers should apply pesticides as control when 50 or more aphids are found on 25 percent of the crop. “Doing this during preboot or boot stage is critical to control damage,” he said. (“Boot” is when the seed head is developing, but is still inside the stem and has not emerged. “Preboot” is the vegetative stage before the seed head is present in the boot.) Several insecticide seed treatments are available, all of which are equally effective for controlling the pest in the first 30 days. By 51 days, Buntin said, the treatment has dissipated. In partnership with UGA Cooperative Extension entomologist Phillip Roberts, Buntin conducted trials using a variety of chemical treatments. The untreated grain sorghum plots did not produce heads as a result of the aphid damage. The best control method was determined to be Sivanto 200 SL at 4 to 7 fluid ounces per acre. Transform WG at 1 to 1.5 ounces also was effective. Transform was used in Georgia in 2015 under an emergency use exemption to Section 18, which has expired, Buntin said. A new Section 18 exemption will be needed for 2016. “Pyrethroid-type insecticides are not effective against the aphid. They will flare aphid populations, but kill the predators and parasitoids,” he said.Buntin says planting treated seeds are sugarcane farmers’ first line of defense.“I would suggest, once the seed treatment plays out, that farmers apply Sivanto and follow with Transform. Aerial applications need to be in the 5-gallon range. Coverage is critical, and you need to get the spray down into the canopy,” he said.Buntin reminds farmers that no insecticides are labeled for use on sweet sorghum, which is used for making sorghum syrup.“It’s going to be a tough year for sorghum, especially the forage and silage types,” said Buntin, who conducts research on all small grains grown in Georgia. “Farmers should try to suppress the aphids before the crop gets too big and should remember to spray with a ground sprayer.”last_img read more

Read More →

IMCA Modified winner at Outlaw’s Spring Nationals banks $1,200

first_imgDUNDEE, N.Y. – Outlaw Speedway’s Spring Nationals sports a $1,200 IMCA Modified main event and a couple opportunities for drivers to pick up some extra cash on opening night.The Friday, April 21 headliner is a Fast Shafts All-Star Invitational ballot qualifier and IMCA Speedway Motors Weekly Racing National, Dirt Works Eastern Region, Allstar Performance State and track points will be awarded.Top 12 qualifiers from heat races during the April 20 Thursday Night Thunder program will be entered in a $150 to win dash for cash. The “B” feature winner also earns $150.Pit gates open at 3 p.m. on Thursday and 4 p.m. Friday. Hot laps are at 6 p.m. and racing starts at 7 p.m. both nights.Thursday grandstand admission is $12 for adults, $10 for seniors and free for kids 12 and under. Pit passes are $20. On Friday, admission is $22 for adults, $20 for seniors and free for kids. Pit passes will be $40.Camping will be free. A bonfire and DJ are in plans for Friday night at Dundee. Both Thursday and Friday programs will be broadcast by IMCA.TV.More information is available from promoter Tyler Siri at 607 243-8686, on Facebook and at the www.outlawspeedway.llc.com website.last_img read more

Read More →

Zambia awarded points, leaves Ghana’s world cup campaign in danger

first_imgFifa has stripped Sudan of its 2-0 win against Zambia in a 2014 World Cup qualifier because one of its scorers was ineligible to play.The disciplinary committee of football’s world governing body ruled that Saif Ali should not have played in the 2 June game in Khartoum.Zambia protested that Ali played despite receiving yellow cards in previous competitive matches, including when Zambia beat Sudan in an Africa Cup of Nations quarter-final in February.Fifa declared the match “lost by forfeit by Sudan,” awarding Zambia a 3-0 victory and with it the three points for a win.The Sudan football association has also been fined US$6,430.Zambia now leads Group D with six points from two matches, and Sudan falls to third place with one point. Ghana are in second place with three points while Lesotho are bottom with a single point.last_img read more

Read More →

Royals see Katrina damage

first_img “For people who have lost everything, something like this means a lot,” she said. “My impression is it’s very important for the prince that this be centered on the children, and that this is a humanitarian act,” she added. More than 1,300 people died across five gulf states when Katrina hit in late August, the vast majority of them in Louisiana. Eighty percent of New Orleans was inundated by floodwaters. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! NEW ORLEANS – Prince Charles and his wife, Camilla, flew into New Orleans on Friday for a brief glimpse of the ravaged city and a chance to meet a few of the hundreds of thousands of residents whose lives were turned upside-down by Hurricane Katrina. After an airport ceremony to greet their flight from Washington, the couple went to the impoverished lower Ninth Ward, which was all but obliterated when water breached one of the levees that protected the city. Standing atop a patched 20-foot levee, they shook their heads in disbelief at the destruction: splintered homes, chunks of concrete, overturned cars. The couple also met residents and rescue workers. Tommy and Gloria Jones, who lost their house in the disaster, presented Charles and Camilla with a gift of a Mardi Gras doll and a picture frame. AD Quality Auto 360p 720p 1080p Top articles1/5READ MOREWalnut’s Malik Khouzam voted Southern California Boys Athlete of the Week Later, at a stop in the French Quarter, a woman presented Charles with a baseball hat emblazoned with “Bring New Orleans back.” Another gave him a string of Mardi Gras beads that he wore over his blue suit. Despite the inconvenience the visit caused to the recovering city, some residents said it was worthwhile. Mary Prinz, 66, said she had thanked Charles “for coming and giving us some publicity. We need people to come down here and see how bad it is. Maybe the senators and congressmen from up north will come down now that he’s led the way.” Charles and Camilla, the Duchess of Cornwall, also were to meet children and parents at the Cathedral Academy in the city’s French Quarter – the first school in the area to reopen after the storm – before flying on to San Francisco later Friday. The tightly choreographed visit was scheduled to last barely two hours. But vice principal Peggy LeBlanc, whose flood-destroyed school was merged with Cathedral after the storm, said it was still significant. last_img read more

Read More →