Adulticiding Alternatives: Barrier Treatments. Joe Andrews- Vector Biologist Univar USA

Transcription

1 Adulticiding Alternatives: Barrier Treatments Joe Andrews- Vector Biologist Univar USA

2 April 10 th 2011

3 Barrier Treatments Not used that frequently Requires no special equipment Consists of focusing a residual treatment to mosquito resting sites Has significant value in IMM Program Will not get them all!

4 Why add barrier treatments Budget crunch Barrier treatments are done during regular business hours; cutting overtime The concentrated products are comparatively inexpensive when contrasted with ULV adulticides 30 day residuals with most products ULV adulticides have essentially no residual High residual means the product is working 24/7 continually carving away at the adult mosquito population

5 Areas for Barrier Treatments Around Buildings Walls and Plants Under Decks and Other Protected Areas Lower Part of Fences Dark and Humid Areas Outdoors Surfaces Near Breeding Areas

6 Barrier Treatments For an effective barrier treatment you would treat any surface area where a mosquito would rest Use a properly labeled material to treat with a hand or a power sprayer Treat limbs of shade trees, shrubs, tall grass and shaded areas around buildings where mosquitoes congregate

7 Barrier Treatments Mexico Any town USA

8 Barrier Treatments Target Mosquitoes are at Rest Most of the Time on Plants and Protected Surfaces Mosquitoes Feed on Plant Sugars Treating Plant Surfaces Reduces Mosquito Adult Numbers Resting Areas

9 Potential Treatment Areas Ball Parks School perimeter Exercise areas Day Care Centers/retirement centers Greenways and nature trails

10 Pyrethroid Barrier Treatment Data LSU Trials, Summer 2002

11 Evaluation of Bifenthrin 10WP Indoor Residual Spraying in India Anopheles culifacies Mud Walls 25 mg ai/m 2 50 mg ai/m 2 8 wks 100% 100% 20 wks 80% 100% 24 wks 66.7% 80% WHOPES, Dr. R.S. Yadav, PI, conducted

12 Residual Control of Mosquitoes with Bifenthrin on Different Surfaces # Weeks Bifenthrin 1 oz/1000 sq ft 5 0 Cement Wood Bambo Pole Palm Thatch Weeks of Control with > 75% of Anopheles Albimanus

13 Hervey Bay City Council Queensland Australia Evaluation of Bifenthrin as an Effective Insecticide Barrier Treatment for Biting Midges (Culicoides spp.) & Mosquitoes (esp. Oc. vigilax) Infesting Peri-Domestic Situations at River Heads, Hervey Bay. Authors: H. Standfast 1, I. Fanning 2, L. Maloney 2, D. Purdie 3 & M. Brown 4 1. International Vector Consultants, 41 Henry St., Chapel Hill, Brisbane, Queensland 4069 Australia. 2. Hervey Bay City Council, PO Box 5045, Torquay, Queensland 4655, Australia. 3. Queensland Institute of Medical Research, PO Royal Brisbane Hospital, Queensland 4029, Australia. 4. Griffith University, Australian School of Environmental Studies, Nathan Campus, Brisbane, Queensland, Australia 4111 & FMC Chemicals, PO Box 329 Hamilton Central, Queensland 4007 Australia

14 - Can t safely treat with larvicides at rates effective against midges! Biting midges (Howie et al. 2002) & mosquitoes (Russell 1995) significantly impact public health in Australia. Larval C. C. subimmaculatus habitat (estuarine sand, sandy mud). Larval Culicoides ornatus habitat (estuarine mud).

15 Treatment Sites Randomized Pairs: 1 Treatment + 1 Control x 4 = 8 Houses NRA Permit: 5547.

16 Fences & Ornamental Harborage

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19 Efficacy of Barrier treatments T R E A T M E N T C O N T R O L

20 Barrier Treatments with Mavrik Controls Adults that Rest on Treated Surfaces Also Controls Culicoides and Flies Is Among the Longest Lasting Products

21 Barrier Treatments These treatments should be focused to the area 15 feet out and 15 feet up -- around the outside perimeter Use oz of Mavrik to treat 1,000 sq. ft. Or oz of Mavrik to 100 gal. of water Do not apply to water or areas where run-off into water might occur.

22 Chowan County Fair Light Trap Three Gallons Coastal Flood Basin Two Gallons Temporary Parking area Fair Two Gallons

23 Equipment Options Hand-held Coarse Sprayers Hand-held Aerosol Generators or Mistblowers Back-packs Power-Spray Rigs

24 Demand CS

25 Demand CS Capsules Formation Polymer bids weaves around the active protecting it The final capsule looks like a golf ball inside Water based formulation EPA, USDA, Military use Resistant but permeable to diffuse the ingredient active as per specification (Dial in release)

26 Micro-caps caps on Mosquitoes

27 Micro-caps caps on Leaf 2 Weeks After Treatment

28 Note to self: Joe, you are due back in Vancouver!

29 Biggest Luger! Andrews sets land speed record on a sled!

30 Andrews gives mercy skate to old soviet broad. The crowd goes wild! Note: Any resemblance to Joe Conlon is entirely coincidental that s my story and I m sticking with it!

31 Be well