September 2010. January 2011 Randolph Response-2009 Placed thousands of traps in 8 square mile grid Placed thousands of traps in 8 square mile grid Inspected.

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Presentation transcript:

September 2010

January 2011

Randolph Response-2009 Placed thousands of traps in 8 square mile grid Placed thousands of traps in 8 square mile grid Inspected thousands of trees Inspected thousands of trees Cut 70+ infested trees Cut 70+ infested trees Follow up surveys – traps, visual Follow up surveys – traps, visual Federal quarantine Federal quarantine Firewood regulation Firewood regulation

Life cycle of emerald ash borer in Northeastern US & Canada

Adults are active from late May to mid-August. Each adult lives 3-4 weeks. Beetles feed on ash foliage.

Adults mate; female lays single eggs on or just under bark. Usually eggs per female but can range from 2 to 258 eggs.

Larvae bore through bark in July & feed aggressively in serpentine galleries in the cambium in August and September.

Extensive galleries under bark disrupt translocation of water & nutrients in the tree

Extensive tunneling causes canopy dieback and eventually…

Death of the tree except for sprouting from the lower trunk.

Larvae spend the winter under the bark and pupate in the spring

Pupal development & emergence the following spring. Adults emerge from trunks from late May to early August

When adults emerge they leave a ‘D’-shaped hole about 3/8” wide

Detecting EAB- before it’s too late! Visual signs (eyes of the public!) Visual signs (eyes of the public!) Traps & trap trees Traps & trap trees Biosurveillance Biosurveillance

Visual symptoms of infestation Strong evidence Strong evidence Any metallic green buprestid beetle Any metallic green buprestid beetle D-shaped exit holes D-shaped exit holes Vertical splits in bark Vertical splits in bark Serpentine galleries Serpentine galleries Woodpecker activity in late summer/fall Woodpecker activity in late summer/fall Weaker evidence Weaker evidence Crown dieback Basal sprouting

What to do if you find a suspect EAB Specimens of suspect EABs should be placed in a vial with alcohol(or in the freezer), and brought to: 1. Your local DEC office 2. Your local Cooperative Extension 3. Your local Ag & Markets inspector 4. If you can, take digital photos and them to one of the agencies above.

Purple Trap & Trap Tree

2008 Trap Grid

Traps Sticky Panel traps Sticky Panel traps Manuka oil lure Manuka oil lure Ideally hung in southern side of ash tree, 30’ high Ideally hung in southern side of ash tree, 30’ high

Biosurveillance by Cerceris fumipennis, a native wasp

“Solitary”, ground-nesting, buprestid-hunting

Will not sting people

Management: Priorities 1. Prevention 1. Don’t move firewood 2. Early Detection/Rapid Response 1. Visual Surveys, Traps, Biosurveillance 2. Public Awareness 3. Biological and Chemical Controls 1. There is promising research, but useful tools may still be years away

Response: CHOOSE WISELY Know who to contact Know who to contact Develop a planned response Develop a planned response How much ash do you have in your woods? How much ash do you have in your woods? May want to reduce the percentage of ash via sawtimber harvest or timber stand improvement May want to reduce the percentage of ash via sawtimber harvest or timber stand improvement