1 / 8

Early Detection

Early Detection. Pheromone Lure Traps Male moths are caught as they try to find a mate Sticky interior. 2006-2011 Trap Catch Trends. 2008. 2006. 2007. 2009. 2010. 2011. Gypsy Moth in Minnesota. Counts increase as main population nears Population growth increasing

ava-contreras
Télécharger la présentation

Early Detection

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Early Detection • Pheromone Lure Traps • Male moths are caught as they try to find a mate • Sticky interior

  2. 2006-2011 Trap Catch Trends 2008 2006 2007 2009 2010 2011

  3. Gypsy Moth in Minnesota • Counts increase as main population nears • Population growth increasing • Meteorological explanation?

  4. How Do Gypsy Moths Spread? Natural Artificial Tourism “Ballooning of larvae” Nursery stock Household moves Life stages are transported by humans 13-16 miles per year Populations expand 1¼ miles per year due to larval dispersal

  5. Predators and Pathogens • Entomophaga maimaiga • NPV (nucleopolyhedrosis virus) • Mammals • Birds • Amphibians • Invertebrates NPV E. maimaiga

  6. Factors That Influence Spread Rates • Early season temperatures & larval survival • Wind events & larval dispersal • Habitat & host abundance • Spring rains & disease incidence • Predator habitat & predation rates • PEOPLE through artificial introductions

  7. National Gypsy Moth Management

  8. Management Options • Bacillus thuringiensis var. kurstaki (Btk) • Common soil bacterium toxic to GM caterpillars • Halts feeding • Disparlure (mating disruption) • Targets adults • Reduces mating success • Diflubenzuron • Interferes with molting • Often used in nursery settings • Treatments in Minnesota have kept gypsy moth in check since 1980!

More Related