1 / 25

Exam Review

Learn about the biology, behavior, and ecology of mosquitoes in this informative review. Explore the different species found in Kentucky and understand their implications for control. Discover the top 10 mosquitoes in Kentucky and their characteristics.

rameriz
Download Presentation

Exam Review

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. Exam Review

  2. Mosquitoes Announcements Speakers Today: Marty Whitehouse, Laura Strasinger Speakers Next Thursday: Sarah Stephan, Chris Gibson Read Chap 14, Mosquitoes

  3. Mosquitoes • Mosquitoes are flies (Diptera, they have 2 wings) • Family Culicidae • Larval and pupal stages are always aquatic • Wings are covered in scales • Mouthparts of females are adapted for piercing and sucking blood

  4. The Business End Compound Eye • Palps & antennae are used to find hosts • Once the mosquito lands, the outer sheath slides back, exposing the mandilbes & maxillae • These form the stylets which stab the skin. • Sensors on the tip of the stylets confirm capillary location Sensory Setae Human Hair Palp Lower “Lip” (labium) Mandibles & Maxillae Blood Capillary Sensors

  5. There are many species of mosquitoes • About 2,500 species world-wide • About 150 in North America • 50 – 60 in Kentucky • Each species has its own biology, behavior, ecology, etc. • Implications: • No single control can be expected to work for all mosquitoes • Need to understand which species that you’re facing

  6. Five Principal Genera in Kentucky • Aedes – Most anthropophillic • Anopheles – Malaria mosquitoes • Culex – Orniphilic, disease threats • Ochlerotatus – Important invaders • Psorophora – Large, painful biters • The dominant species you face depends on where you are.

  7. 144 Boone Campbell 49 140 10 60 Cx. Pipiens/restuans Culex spp. Aedes spp. Ochlerotatus spp. Anopheles spp. Psorophora spp. 40 5 20 Fleming Grant 45 24 30 8 15 4 7.5 0 0 24 25 26 27 24 25 26 27 Northern Kentucky, 2004 No. mosquitoes Week

  8. 180 663 150 130 Cx. Pipiens/restuans Culex spp. Aedes spp. Ochlerotatus spp. Anopheles spp. Psorophora spp. 80 20 75 10 0 24 25 26 27 25.00 12.50 0.00 24 25 26 27 Western Kentucky, 2004 Daviess Fulton No. mosquitoes Union Week

  9. 990 900 850 75 800 50 50 40 30 25 20 10 0 0 24 25 26 27 23 24 25 26 Cx. Pipiens/restuans Aedes spp. Ochlerotatus spp. Urban Kentucky, 2004 Jefferson Fayette No. mosquitoes Week

  10. Aedes vs. Culex Biology Anopheles and Psorophora cross these categories

  11. Top 10 Mosquitoes in Kentucky 5 Major Genera Aedes Anopheles Culex Ochlerotatus Psorophora Other Genera in KY: Culiseta Toxorhynchites Uranotaenia Coquillittidia Orthopodomyia Wyeomyia

  12. #1 Aedes albopictus • Asian tiger mosquito • Nuisance biter, potential dengue vector • Feeds evenings, mornings on humans

  13. #2 Aedes vexans • Inland flood water mosquito • Nuisance biter, transmits dog heartworm, WEE/EEE • Feeds at dusk

  14. #3 Culex pipiens/restuans • Northern house mosquito • Most likely to transmit WNV • Feeds at night on birds, humans

  15. #4 Ochlerotatus japonicus • Asian bush mosquito • Currently invading state • Begins biting mid-morning, lower extremities

  16. #5 Ochlerotatus triseriatus • Eastern treehole mosquito • Vector of La Cross encephalitis • Feeds at dusk on small mammals, humans to lesser extent

  17. #6 Anopheles punctipennis • Mottled-wing Anopheles • Aggressive nuisance biter • Feeds during the day/dusk in shady/forested areas

  18. #7 Anopheles quadrimaculatus/crucians • Common malaria mosquito (quadrimac.) • Vector of dog heartworm • Feeds during day/dusk in shady/forested areas

  19. #8 Ochlerotatus trivittatus • Three-striped mosquito • Aggressive nuisance biter, especially when hot, after rain • Particularly prevalent in flooded woodlands • Feeds during the day, dusk

  20. #9 Psorophora ciliata/howardii • Gallinipper • Ouch!! • Feeds during the day, at night

  21. #10 Culex erraticus • Weak flier, feeds mostly on forest animals • May feed on humans when present

  22. Generic Mosquito Life Cycle • Larvae are wigglers • Pupae are tumblers (quite active) • Both breath air • Eggs are laid on the surface of water in rafts (Culex) or singly (Anopheles) or near water (Aedes)

  23. Most breath atmospheric air via a siphon

  24. Mosquito Diet • Most Larvae feed on algae but a few are predaceous and feed on other mosquito larvae • Only females are blood sucking • Males and females feed on nectar and other plant juices

  25. After Emergence … • Day 1 – Rest on nearest available moist/shady spot. Vertical surfaces. • Day 2 – Carbohydrate feeding • Day 2/3 – First blood meal • Next Day – First egg clutch • After egg clutch, more carbohydrate & blood meals • Typical adult lives 7 – 10 days

More Related