The traps remained in place for a period of two. In addition, to prevent the inflow of rainwater and fallen leaves, the traps were covered with lids that were secured with pins. But lizards and insects might not be the only species to take an interest in pitfall traps. With lizards, slices of pear or sometimes petfood are used to attract them to the trap. “Treat only where and when necessary, and the grass can usually recover if you give it enough water,” he says. Pitfall traps made of plastic containers with a diameter of 9.5 cm and a height of 10 cm used in the National Ecosystem Survey were installed at ground level 5 m apart. A common way to monitor what insects or lizards are around, is to use a live-capture pitfall trap which skinks, geckos and ground-based insects then fall into. Koppenhöfer recommends that superintendents make peace with the pest and learn to live with it. One superintendent in his area has been successful for about 30 years with applying a single spray to problem areas in the spring to kill adults and a cleanup spray later in the year. Koppenhöfer says superintendents should focus on the larvae if resistance is suspected.ĪBWs prefer short-mown grass, and Kopppenhöfer says the ABW can survive mowing, so it is a good idea to dispose of clippings to ensure the weevils don’t return.Ībove all, Koppenhöfer says don’t panic if you suspect ABW on your course because it’s next to impossible to eradicate the pest. Universities, such as Rutgers, have information available to help time the emergence of the pest. Scouting for ABWs is important for keeping ahead of the insect. “That grass is so successful and so invasive that at some point, they have to choose what is easier: keeping the Poa out or controlling the pests that can damage it,” he says.ĪBW has been a golf course pest for almost 70 years, with insecticide resistance becoming a problem over the last 20 years. Poa’s growth habits can prove difficult to control. and control Controlling access: lock() A Thread Pitfall: Deadlocks Queues. When Albrecht Koppenhöfer, Ph.D., professor and Extension specialist at Rutgers University’s department of entomology, first heard of the annual bluegrass weevil (ABW), he thought it had the makings of a beneficial insect.ĪBWs prefer annual bluegrass, or Poa annua. Awk Traps C Traps Sed Traps Shell Traps Perl Traps Perl4 to Perl5 Traps. By counting the adults captured it will give the staff an advantage and an idea of populations for this upcoming year. These traps are designed to track annual bluegrass weevils that are moving from the treeline/roughs towards the fine turf areas. Experts say scouting is a critical component of ABW control. ABW (Hyperodes) Traps Today we installed five pitfall traps around the course. The annual bluegrass weevil (ABW) has been pestering golf course superintendents for more than 70 years. We sought to address 3 objectives: 1) document how commonly pitfall traps are used compared with other methods for sampling arthropods 2) examine whether the most common methods varied among disciplines or major vegetation communities 3) summarize the extent of variation in pitfall trapping methods used by past inves- tigators and 4) propose.
0 Comments
Leave a Reply. |