Cherry R.,Everglades Research and Education Center |
Grose P.,King Ranch |
Barbieri E.,King Ranch
Journal of Pest Science | Year: 2013
Wireworms in Florida are primarily a pest in newly planted sugarcane, and growers usually apply a soil insecticide at planting to protect germinating seedpieces from wireworm damage. However, studies have suggested that this application in many cases may not be necessary. The objective of this research was to test a sequential sampling method to determine the need for soil insecticide at sugarcane planting. Testing was conducted on fields located on King Ranch near South Bay, Florida. Wireworm samples were taken in a transect across the length of each field. We used an economic injury level of nine or more wireworms per 25 samples. Sugarcane yield parameters for each whole field were obtained through standard commercial harvesting procedures. Using our sampling method, 38 fields were judged as not needing insecticide application. There was no significant difference in yield in these fields with versus those without insecticide application. © 2011 Springer-Verlag.
Parent C.J.,Michigan State University |
Hernandez F.,Caesar Kleberg Wildlife Research InstituteTexas iversity KingsvilleKingsville78363 |
Brennan L.A.,Caesar Kleberg Wildlife Research InstituteTexas iversity KingsvilleKingsville78363 |
Wester D.B.,Caesar Kleberg Wildlife Research InstituteTexas iversity KingsvilleKingsville78363 |
And 2 more authors.
Journal of Wildlife Management | Year: 2015
Northern bobwhite (Colinus virginianus) populations have declined across their range. The decline is associated with broad-scale losses of their habitats. Additionally, the presence of essential, structural features provided by vegetation in the remaining habitats is contingent on variable spatial and temporal trends in precipitation. This complicates the management of the bobwhite's habitats. We modeled counts of bobwhite coveys as a function of landscape structure and precipitation covariates from arid landscapes in southern Texas. Our results indicated that numbers of coveys in landscapes with greater amounts of woody cover were predicted to be highly independent of precipitation. This has important management implications because certain landscape structures associated with woody cover buffer bobwhite populations from drought. To facilitate management based on our results, we mapped our model predictions for covey counts. This allows managers to spatially prioritize where management interventions need to occur, and evaluate the potential efficacy for these interventions to create positive bobwhite population responses. © The Wildlife Society, 2015.
Aguiar A.D.,Texas A&M University |
Tedeschi L.O.,Texas A&M University |
Rouquette F.M.,Texas AgriLife Research Center |
McCuistion K.,Texas A&M University-Kingsville |
And 4 more authors.
Grass and Forage Science | Year: 2011
The objectives of this study were to use the in vitro gas production (IVGP) technique to evaluate the pattern and parameters of anaerobic fermentation of forages from south Texas pastures throughout the year to (i) obtain empirical relationships between the IVGP technique fermentation parameters and chemical composition of the forages and (ii) develop equations to compute total digestible nutrients (TDN). During four consecutive years (2006-2009), forage samples were collected monthly (n=39) at the King Ranch, TX, and chemical analyses and IVGP were obtained. For 2006, 2007, 2008 and 2009, the average lag times, h, were 6·47±0·54, 7·75±0·65, 7·49±2·01 and 5·44±1·46, and the average ratio of millilitre of gas per milligram of dry matter was 0·41±0·11, 0·34±0·09, 0·34±0·07 and 0·26±0·10 respectively. There was a moderate negative correlation (r=-0·53) between lignin and neutral detergent fibre (NDF) and a moderate positive correlation (r=0·58) between crude protein and NDF digestibility. The predicted fractional passage rate (kp) by the large ruminant nutrition system model using the level 2 solution was on average 0·0366 h-1. The average computed TDN assuming a kp of 0·04h-1 was 55·9%. We concluded the IVGP technique may be used to predict TDN values of warm-season forages. © 2011 Blackwell Publishing Ltd.
News Article | March 3, 2017
Pickup trucks have evolved quite a bit over the last 20 years. No longer are they dedicated tools of tradesmen or simply haulers of horses. They have created their own luxury segment so decidedly American that you have to tip your hat to whomever at Ford first said, “You know, I think the F-150 needs an interior nicer than a Lincoln.” Although we’re guessing the green light wasn’t illuminated until someone crunched the numbers and said, “And would you look at the margins?” One result is that the newest F-150 isn’t just a 10Best Trucks and SUVs winner, it’s good compared with any vehicle. Granted, towering above other traffic in the Caribou-accented leather interior of our King Ranch edition test model leaves no question as to whether you’re in a pickup, but this truck’s ride (on 55-series, 20-inch tires) is nothing short of astonishing. Both the Ford and the Ram 1500 deliver amazing ride quality, but the F-150’s tuning is even more impressive given our test truck’s higher payload capacity (1526 pounds versus 1262 for a recent Ram 1500 we tested). The greater the difference between a truck’s empty and fully loaded weight, the firmer and more jarring the unloaded ride usually is. But that isn’t the case with the F-150—attentive damper and spring tuning is evident and appreciated with every pothole, expansion joint, and speed bump traversed. Headlining the changes for 2017 is a new powertrain combo. Replacing the original twin-turbocharged 3.5-liter EcoBoost V-6 is a gen-two unit of identical displacement and turbocharger count. This V-6 now employs port fuel injectors to bolster partial-load efficiency while direct fuel injectors do the work under full load. Max power is up by 10 ponies to 375, and peak torque jumps from 420 lb-ft to 470 at 3500 rpm. That output is routed through a new 10-speed automatic transmission co-developed with General Motors. Together, the new engine and transmission option added $1000 to the tab for our King Ranch. With 10 gears from which to choose, this powertrain sees minor increases in its EPA ratings, gaining 1 mpg over its 2016 counterpart in both city and highway measures, to 17 and 22 mpg. Unlike some nine-speed transmissions, this 10-speed will hold top gear while cruising on the highway at 65 mph. In our 75-mph, 200-mile highway fuel-economy test, this F-150 returned 19 mpg, 2 mpg short of its EPA highway estimate. During its stay with us, it averaged 15 mpg overall, which is about par for most of the modern, big-engined half-tons we’ve tested. In the vast majority of driving scenarios, the gearbox shifts through cogs so smoothly you won’t notice unless you happen to be staring at the gear indicator flanking the speedometer. The only time we felt some wonky shifting was during deliberate stabs at the throttle, when the transmission acted as if it were caught out between gears, a situation we intentionally provoked to see how the new transmission would interpret our commands. It’s an outcome few F-150 owners this side of a Raptor driver will ever experience. At the track, the new truck sprinted to 60 mph in 5.7 seconds, one-tenth quicker than the previous F-150, and broke the quarter-mile tape in 14.4 seconds at 98 mph, 0.2 second and 2 mph improvements. Credit both the engine and the 10-speed, which shuffled gears like a blackjack dealer. At the track we also discovered just how easy the F-150 is on the ears, with a noise level of 67 decibels at a 70-mph cruise. To put that into perspective, our long-term BMW 740i generates 68 decibels at the same speed. Today’s big pickups come with equally big price tags, and the F-series is no exception. A 3.5-liter EcoBoost SuperCrew 4x4 starts at $40,355, and that’s in work-truck XL trim. Jumping past the XLT and Lariat trim levels to the King Ranch requires another $16,040. Our test example also came with a $3280 equipment package consisting of inflatable rear seatbelts, upgraded front bucket seats, blind-spot monitoring, cross-traffic alert and trailer-tow monitoring, a deployable tailgate step, power running boards, 20-inch aluminum wheels, automatic high-beams, and rain-sensing wipers. The truck seen here was further enriched by a $895 towing package (netting the clever backup assistant and a 10,600-pound tow rating—although other configurations can reach 11,800), a panoramic sunroof for $1295, adaptive cruise control and forward-collision warning ($1250), a 36-gallon fuel tank for $395 (making for 680 miles of highway range), the $440 automatic parking feature, the $990 technology package (lane-keeping assist and a 360-degree camera view), and a spray-in bedliner ($495), among other sweeteners. All in, our F-series was a $65,120 pickup. Some of the options we could do without, particularly the panoramic sunroof because it diminishes the payload capacity, but others, like the 360-degree camera, are seriously useful in myriad everyday situations. Despite what Ford’s board members might wish, daily driving a pickup isn’t for everyone. They’re a pain to maneuver through crowded parking lots, they’re expensive to operate, and they’re huge. But at least with trucks like this F-150, the driver doesn’t get banged around on a quick trip to the market or on an hour-long commute. Like we said: evolved. ENGINE TYPE: twin-turbocharged and intercooled DOHC 24-valve V-6, aluminum block and heads, port and direct fuel injection
News Article | December 19, 2016
DEARBORN, Mich.--(BUSINESS WIRE)--Customers now expect more than superior capability from their trucks. They demand more technology to get the job done quicker and easier. Here are the top five class-exclusive technologies that customers are choosing, never before available on Super Duty until now: Three months into its launch, the all-new 2017 Super Duty’s smart technology features drove total nameplate sales up 24 percent and retail sales up 33 percent for November. Demand is especially strong for Crew Cab, 4x4 and 6.7-liter Power Stroke® V8 diesel equipped Lariat, King Ranch, and Platinum trucks, which accounted for 71 percent of Super Duty retail sales. Texas – home to Ford’s two largest truck regions – saw Super Duty sales rise 45 percent in Dallas and 38 percent in Houston. More than 81 percent of these sales include Lariat, King Ranch and Platinum series trucks, with demand for 4x4 and Crew Cab configurations outpacing the rest of the country by 97 percent. “The technology features in the new F-Series trucks, in particular the all-new 2017 Super Duty, are generating even greater interest,” said Chaz Gilmore, managing partner, Grapevine Ford Lincoln, near Dallas. “This truck is bringing a lot of new buyers out of competitive brands and into the Ford family. Ford really knocked it out of the park with this truck’s performance, options and technology offerings.” The all-new Super Duty beats the competition on virtually every metric, with 925 lb.-ft. of torque, a 7,630-pound payload and 32,500 pounds of gooseneck towing capacity – but its 20 class-exclusive technologies really up the ante. High-series trucks equipped with such exclusive features as adaptive steering, Trailer Reverse Guidance, adaptive cruise control with collision mitigation, Blind Spot Information System (BLIS®) with cross-traffic alert and trailer tow are what customers really want. “Technology innovation is proving to be a differentiator,” said John Rieger, Ford Super Duty consumer marketing manager. “Our 20 class-exclusive, driver-assist technologies help increase productivity and boost driver confidence − especially when serving Super Duty’s primary mission of towing long, heavy trailers.” With its first major redesign since being introduced in 1999, the all-new 2017 Super Duty takes heavy-duty pickups to the next level in toughness, smartness and capability. Ford Motor Company is a global automotive and mobility company based in Dearborn, Michigan. With about 203,000 employees and 62 plants worldwide, the company’s core business includes designing, manufacturing, marketing and servicing a full line of Ford cars, trucks and SUVs, as well as Lincoln luxury vehicles. To expand its business model, Ford is aggressively pursuing emerging opportunities with investments in electrification, autonomy and mobility. Ford provides financial services through Ford Motor Credit Company. For more information regarding Ford and its products and services, please visit www.corporate.ford.com. For news releases, related materials and high-resolution photos and video, visit www.media.ford.com.