Welcome to the internet home of the Maryland Section of the American Chemical Society (MD ACS). One of 190 local sections, we are based in Baltimore, Maryland. We work to promote awareness and interest in a wide variety of chemistry subjects through monthly dinner meetings, community outreach, and working with students in chemistry and science.
"Fungicides and the neonicotinoid class of
pesticides and their effects on bees"
Dr. Josephine Johnson
Adjunct Professor, Stevenson University
Founder and Owner, Cullaborate LLC
Wednesday, March 8, 2017
Kevin J Manning Academic Center
Rooms S-124 B/D and S-137
Owings Mill North Campus
11200 Gundry Lane, Owings Mills, MD 21117
Speaker Bio: Dr. Josephine Johnson (Jody) began her chemistry career at Johns Hopkins in the Department of Cardiology. There she studied ischemia in heart tissue using nuclear magnetic resonance (NMR). She then pursued a masters degree in chemistry from UMBC. Her research focused on understanding the stereochemistry of a substrate in the active site of a Krebs Cycle enzyme. After finishing her degree, she worked at Kennedy Krieger for several years analyzing lead contamination in inner city children suffering from pica using drug chelation therapy. After a leave of absence from the lab, she returned to chemistry at Stevenson University where she filled multiple roles for ten years: chemistry instructor, chemistry lab manager, and safety officer. She began the doctoral program at the University of Maryland Medical School intending to focus on neurotoxins and human health. However, a twist of fate led her to realign her focus to study the effects of neurotoxins on honey bees. She studied under Dr. Jeff Pettis, a world recognized entomologist specializing in honey bee behavior who was located at the USDA lab in Beltsville, MD. Jody undertook four studies on imidacloprid, a neonicotinoid pesticide. These studies addressed imidacloprid 's water contamination, systemic movement in trees, contamination effects on larval bees, and synergistic effects with other classes of pesticides on foraging behavior of honey bees. Upon graduation, she worked for over a year at a contract research organization in North Carolina performing pollinator studies for agrochemical companies. This work informed the EPA of toxicity issues on bees based on exposure to active ingredients. Returning to Baltimore, she started her own pollinator research company, Cullaborate LLC. Currently she teaches courses in physical science, chemistry, environmental science, pollinators, and sustainability at Stevenson University and Maryland Institute College of Art. She collaborates with Cylburn Arboretum on an urban gardening project, the USDA on an invasive mite issue, and the Almond Board of California on the effects of fungicides on foraging honey bees during almond bloom.
Speaker Abstract: Pollinator declines are happening worldwide. Although thousands of pollinators represented by bees, beetles, moths, butterflies, flies, lizards, and many small mammals are critical to the ecosystem service of pollination worldwide, honey bees get most of the attention because tens of thousands of honey bees live socially in a hive and the hives are transportable by truck. Basically, honey bee hives represent a tremendously numerous pollination force within boxes that can be moved to specific crops. Successful pollination of agricultural crops is integral to future food security as the human population expands exponentially. The declines in all pollinators has been attributed to complex and interconnected issues of overuse of pesticides, invasive species due to intercontinental traffic by humans, habitat loss and its cascade effect on wildlife nutrition, climate change, and human management practices. My topic is to present some of the evidence that pesticides are taking a toll on both solitary and social bees. Field and laboratory assay methods to determine pesticide chemistry and exposure route, disruption of bee biochemistry , altered bee behavior, and residual compounds that inadvertently get stored in the hives by the bees will be described.
Directions to the Owings Mill Campus can be found here:
|Price||$20 members/nonmembers; $10 students. Payable at event|
| 6:00-6:30 pm||Registration/Networking (Rm S-124 B/D)|
| 6:30-7:30 pm ||Dinner (Rm S-124 B/D)|
| 7:30-8:30 pm|| Presentation by Dr. Johnson (Rm S-137)|