Treasures of Oz

Celebrating the Natural Gems of Ozaukee County

google plus icon link facebook icon link twitter icon link youtube-icon link


The Treasures of Oz is a partnership of
organizations
and individuals who bring together.....  Read More

Wasp release to help eliminate the Emerald Ash Borers

Town of Saukville - Tiny parasitic wasps, Wisconsin's newest weapon in the war against the emerald ash borer, took flight Wednesday in a forest that is under siege from the invasive tree killer.

Two species of stingless Asian wasps that feast on the larvae of the emerald ash borer were released by scientists from the University of Wisconsin-Madison at the Riveredge Nature Center.

A third species that feeds on the egg stage of the bug will be introduced later this summer.

It was the first time that the wasps - which are invasive species in their own right - have been used in Wisconsin to battle the destructive beetle.

UW-Madison entomologist Ken Raffa and research assistant, Todd Johnson, released about 800 wasps from four plastic cups late Wednesday morning in a soggy, mosquito-ridden forest infested with the emerald ash borer.

The bug was first detected in the state in 2008 in nearby Newburg, where the skeletal remains of dead ash trees have become an all-too-common site.

Since then, they have been found in Cudahy, Franklin, Oak Creek, Green Bay, Kenosha and Victory in Vernon County.

Some chemical treatments have shown to be effective, including emamectin benzoate, according to a joint study by several Midwestern universities, including UW-Madison.

But chemical treatments are not feasible to protect entire forests.

The wasps arrived by mail on Tuesday from a federal breeding facility in Michigan, which is doling them out as a biological predator of the emerald ash borer.

The wasps parasitize the larvae and eggs of the insects.

See full story at JSOnline

Watch a video about the Riveredge Nature Center wasp release on Fox News website. http://www.fox6now.com/

OTN-Logo-180

Upcoming Events

Submit an Event


JUL
30

Mequon Nature Preserve
8:30 am - 9:30 am
Hiking Club at MNP

Submit an Event


JUL
30

OWLT Volunteer Days
9:00 am - 2:00 pm
Kratzsch Conservancy

Submit an Event


JUL
31

Mequon Nature Preserve
9:00 am - 12:00 pm
Restoration Rangers - Weekly Workday

Submit an Event


JUL
31

OWLT Volunteer Days
10:00 am - 2:00 pm
Decorah Woods Annual Fall Workday

Submit an Event


JUL
31

Mequon Nature Preserve
10:30 am - 11:30 am
Story Time with Joyce

Submit an Event


JUL
31

Riveredge
2:00 pm - 4:30 pm
Tree Climbing Open Climb

Submit an Event


AUG
1

Harrington Beach
8:00 pm - 9:00 pm
Observatory Viewing

Submit an Event


AUG
2

Riveredge
10:00 am - 11:30 am
Nature Detectives: Prairie Wonder Wander

Submit an Event


AUG
2

OWLT Volunteer Days
10:00 am - 2:00 pm
Forest Beach - painting party

Submit an Event


AUG
2

Harrington Beach
10:00 am - 11:00 am
Who Lives In the Park? Puppet Time

Submit an Event


AUG
2

Riveredge
1:00 pm - 2:00 pm
Riveredge Silent Sports: Hike in the River

Submit an Event


AUG
2

Riveredge
5:00 pm - 9:00 am
Family Overnight at Riveredge: Creatures of the Night

Submit an Event


AUG
2

Harrington Beach
8:00 pm - 9:00 pm
Observatory Viewing

Submit an Event


AUG
3

Riveredge
12:30 pm - 3:30 pm
Fly Fishing for Intermediates (CANCELLED)

Submit an Event


AUG
4

OWLT Special Events
-
2014 Midwest Bird Conservation and Monitoring Workshop

Submit an Event


AUG
5

Riveredge
6:00 pm - 7:00 pm
Noel J. Cutright Bird Club Hike

Submit an Event


AUG
5

Riveredge
6:00 pm - 9:00 pm
DIY Prairie Academy Class 2: Site Assessment and Resources for Establishing a Prairie

Submit an Event


AUG
5

Riveredge
7:00 pm - 9:00 pm
Noel J. Cutright Bird Club: Snow Buntings – Their Interesting Life Cycle

Submit an Event


AUG
6

Mequon Nature Preserve
8:30 am - 9:30 am
Hiking Club at MNP

Submit an Event


AUG
7

Mequon Nature Preserve
9:00 am - 12:00 pm
Restoration Rangers - Weekly Workday

Submit an Event


AUG
7

Mequon Nature Preserve
10:30 am - 11:30 am
Story Time with Joyce

Submit an Event


AUG
8

Riveredge
1:00 pm - 2:30 pm
Gone Hiking

Submit an Event


AUG
9

Riveredge
10:00 am - 11:30 am
Children’s Library Storytime

Submit an Event


AUG
9

Riveredge
1:00 pm - 3:30 pm
Tree Climbing Open Climb

Submit an Event


AUG
9

Mequon Nature Preserve
4:00 pm - 10:00 pm
Lake Moon Festival at CUW!

Submit an Event


AUG
9

Harrington Beach
7:30 pm - 9:30 pm
Bats!

Submit an Event


AUG
12

Riveredge
5:00 pm - 7:00 pm
Tree Climbing Open Climb

Submit an Event


AUG
13

Riveredge
8:00 am - 4:00 pm
Knee Deep in Prairies

Submit an Event


AUG
13

Mequon Nature Preserve
8:30 am - 9:30 am
Hiking Club at MNP

Submit an Event


AUG
14

Mequon Nature Preserve
9:00 am - 12:00 pm
Restoration Rangers - Weekly Workday

Submit an Event


AUG
14

Riveredge
10:00 am - 11:30 am
Little Explorers Playgroup

Submit an Event


AUG
14

Mequon Nature Preserve
10:30 am - 11:30 am
Story Time with Joyce

Submit an Event


AUG
16

ToO Misc Events
9:00 am - 8:00 pm
New Wind Folk School

Submit an Event


AUG
16

Riveredge
10:00 am - 11:30 am
Water Adventures: River Roaming

Submit an Event


AUG
16

Cedarburg Bog
1:00 pm - 2:30 pm
Tour Sturgeon Facility @ Riveredge

Submit an Event


AUG
16

Riveredge
1:00 pm - 2:00 pm
Explore with a Naturalist: River Hike

Submit an Event


AUG
16

Riveredge
5:00 pm - 6:30 pm
Farm Dinner Pre-event

Submit an Event


AUG
16

Riveredge
6:30 pm - 10:00 pm
Riveredge Wisconsin Game Farm Dinner

Submit an Event


AUG
16

Harrington Beach
7:00 pm - 8:00 pm
Steve and Friends Band

Submit an Event


AUG
18

Riveredge
-
Bird Banding Course for Semi-experienced Banders