[MAIPC] Surveying for native biological controls

[Imlay, Marc]

Surveying for native biological controls has two approaches that have worked very well.

1.     Search at the far end of the range of the invasive plant species. The native insect/fungus bio controls for Multiflora Rose and Tree of Heaven popped up when MFR moved to the middle of the America and Ailanthus to the deep south central.

2.     Search near where the invasive first came to America so there has been more time for a biocontrol to evolve as may be the case for Japanese honeysuckle at Heritage Island which was brought over by Thomas Jefferson.
For Porcelain berry, for example,  look at https://plants.usda.gov/core/profile?symbol=AMBR7  Note the 17 states it is invasive in. So let us se if an insect of pathogen is having a major impact on it in the extreme of the range. If so we can report it to Matt Tancos at USDA for research. Let us do the same for ground ivy, beefsteak plant, Fig buttercup, JSG, WLBG, Oriental bittersweet, garlic mustard, etc., etc.

Marc
Marc Imlay, PhD, Chair, Biological Control Working Group MAIPC
Conservation Biologist, Park Ranger Office, Non-native Invasive Plant Control Coordinator.
Cell: (301) 442-5657, ialm at erols.com
Natural and Historical Resources Division
The Maryland-National Capital Park and Planning Commission
www.pgparks.com

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