1. Residual and Antifeedant Activity of Landscape Insecticides Against Japanese Beetles Rebecca Baumler, Bonny Miller, & Daniel A. Potter Department of Entomology “ Fear No Beetle”

3. Managing Adult Japanese Beetles In Landscapes

4. Plant Selection is Priority 1!!

5. Highly susceptible:  Most lindens  Purple leaf plum  Sassafras  Norway maple  Roses  Certain crabapples  Roses  Hibiscus Resistant:  Red maples  Most oaks  Flowering dogwood  Redbud  Beech  Hickory  Tuliptree  Sweetgum

6. Traps contain two lures: a floral scent, and the female sex pheromone

7. Traps were evaluated in home landscapes and on golf courses

10. Professional / Homeowner ProfessionalActive ingredientHome TalstarOnebifenthrinOrtho OnyxbifenthrinBug-B-Gon AstropermethrinMany Scimitar GCL-cyhalothrinSpec - Tria DeltaGard T&Odeltamethrin Tempo SCcyfluthrinMulti- Insect Bayer Advancedcyfl./imidaclopridRose & Flower Sevin SLcarbarylBayer

12. “Homeowner” products tested  Neem-away ® (azadirachtin)  Pyola ® (pyrethrins + canola oil)  Hot Pepper Wax (capsaicin)  Surround ® (kaolin clay particle film)  Rotenone/pyrethrins combo  Orange Guard ® (limonene)  Garlic Guard ® (garlic extract)  Sevin ® (carbaryl)

13. Tilia cordata (littleleaf linden) used for all trials

14.  Tagged shoots sprayed  Left in field to weather for intervals of 1 to 19 d  Shoots harvested, leaves challenged with JB

15. Pyrethroids Provide at least 19 Days Control!

16. Orange Guard Garlic Guard Two of the “organic” products caused severe phytotoxicity:

18. Surround ® (kaolin clay) did not deter feeding

19. Neem-awayUntreated Pyola

20. Neem (Azadirachtin): Natural insecticide extracted from from seeds of a tropical tree

21. Summary Pyrethroids (DeltaGard, Talstar, Scimitar, Tempo) gave at least 19 days’ residual protection; longer than Sevin Most “homeowner” organic products were ineffective Pyola ® (pyrethrins & canola oil) and Neem-Away ® deterred feeding for 3-7 days.

22. Support Provided By: UK Nursery/Landscape Research Endowment Fund USDA New Crops Opportunities Grant US Dept. of Agriculture “ Fear No Beetle”