News

Speaking Schedule for Dr. Hannah Mathers – January to March, 2017

  • Michigan Nursery and Landscape Association (MNLA) – Great Lakes Trade Exposition (GLTE)

Lansing Center, Lansing, MI

http://www.glte.org/schedule/educational-sessions

(4 presentations)

 

  1. Diagnosing Long- and Short- Term Effects of Herbicides on Landscape Plants

January 23, 2017, 8:30 am – 9:20 am

The conventional catastrophic injury symptoms normally associated with short-term herbicide use in diagnosing herbicide damage will be covered. In addition, the long-term role of certain pre- and post-emergence herbicides in chronic disorders—including disrupted acclimation, reduced hardiness, reduced nutrient uptake, and weakened tissue integrity—following repeated use near or on woody landscape plants, will also be presented.

  1. “Message in a Bottle:” Season-long Container Weed Control

January 23, 2017, 3:00 pm – 3:50 pm

In the spring of 2015, the oldest message in a bottle was found, 108 years and 138 days after being dropped into the North Sea for a study regarding ocean currents.  This event reminds me of how some research questions take a long time to answer.  Sometimes the delay is because we are not asking the right questions.  We usually research herbicides as individual applications, but we apply herbicides in consecutive applications.  We are told to rotate modes of action (MoA). However, what is the effect of one herbicide following another on the crop and on weed control?  These and other questions will be answered in this talk, based on new research conducted in 2015-2016.

  1. Dormant Applications in Landscape Beds? Why they make sense.

January 24, 2017, 8:00 am – 8:50 am 

Dormant applications can reduce phytotoxicity and increase the duration of efficacy of many of your herbicides.  Three additional benefits of dormant applications will be discussed: 1) utilization of staff in winter, which is traditionally a “down-time” labor-wise, versus spring; 2) insurance that applications will be completed before weed germination, versus waiting for spring when conflicting operations take precedence; and 3) optimized control of weeds that are active in cold weather – that is, problematic perennial and biennial weeds.

  1. You are Feeding Them What?

January 24, 2017, 9:00 am – 9:50 am 

Can tree growth be improved by fertilizers?  Yes, if the right timing, application practices, amounts, plant age and correct nutrients are applied. Therefore, the five factors listed above are first and foremost in deciding your fertilizer program.  Other important questions include: Can soil pH be changed? What nutrients are essential? Are some nutrients detrimental? How do I identify plant nutrient problems?  Answering these questions and gaining a better understanding of these factors is essential to improving your plant nutrition program.

 

  • Indiana Professional Lawn and Landscape Association (IPLLA) – Regional Advanced Training

February 15, 2017 – The Palms Conference Center – Plainfield, IN

February 16, 2017 – Clarion Conference Center – Columbus, IN

February 28, 2017 – Hotel Fort Wayne – Fort Wayne, IN

March 1, 2017 – Radisson Hotel at Star Plaza – Merrillville, IN

http://www.iplla.com/eventcalendar

(2 presentations/day)

  

  1. “Message in a Bottle:” Season-long Landscape Bed Weed Control

In the spring of 2015, the oldest message in a bottle was found, 108 years and 138 days after being dropped into the North Sea for a study regarding ocean currents.  This event reminds me of how some research questions take a long time to answer.  Sometimes the delay is because we are not asking the right questions.  We usually research herbicides as individual applications, but we apply herbicides in consecutive applications.  We are told to rotate modes of action (MoA). However, what is the effect of one herbicide following another on the crop and on weed control?  These and other questions will be answered in this talk, based on new research conducted in 2015-2016.

  1. Dormant Applications in Landscape Beds? Why they make sense.

Dormant applications can reduce phytotoxicity and increase the duration of efficacy of many of your herbicides.  Three additional benefits of dormant applications will be discussed: 1) utilization of staff in winter, which is traditionally a “down-time” labor-wise, versus spring; 2) insurance that applications will be completed before weed germination, versus waiting for spring when conflicting operations take precedence; and 3) optimized control of weeds that are active in cold weather – that is, problematic perennial and biennial weeds.

 

  • Maryland Nursery, Landscape and Greenhouse Association (MNLGA) – Chesapeake Green 2017

Hilton Baltimore, BWI Airport 1739 West Nursery Road, Linthicum Heights, MD

http://www.mnlga.org/calendar_day.asp?date=2/23/2017&event=265

(2 presentations)

February 23, 2017

 

  1. Grower Session:

“Message in a Bottle:” Season-long Container Weed Control

In the spring of 2015, the oldest message in a bottle was found, 108 years and 138 days after being dropped into the North Sea for a study regarding ocean currents.  This event reminds me of how some research questions take a long time to answer.  Sometimes the delay is because we are not asking the right questions.  We usually research herbicides as individual applications, but we apply herbicides in consecutive applications.  We are told to rotate modes of action (MoA). However, what is the effect of one herbicide following another on the crop and on weed control?  These and other questions will be answered in this talk, based on new research conducted in 2015-2016.

  1. Landscape Contractors Session:

Diagnosing Long- and Short- Term Effects of Herbicides on Landscape Plants

The conventional catastrophic injury symptoms normally associated with short-term herbicide use in diagnosing herbicide damage will be covered. In addition, the long-term role of certain pre- and post-emergence herbicides in chronic disorders—including disrupted acclimation, reduced hardiness, reduced nutrient uptake, and weakened tissue integrity—following repeated use near or on woody landscape plants, will also be presented.

 

  • Michigan Nursery and Landscape Association (MNLA) – Pesticide Winter Series

Macomb County MSU Extension, Verkuilen Building (Entrance E), 21885 Dunham Rd., Clinton Twp., MI 48036

http://mnla.org/event/pesticide_winter_series_0

 

  1. Weed Workshop – The War Against Weeds

Thursday, March 2, 2017

12:30 pm  4:30 pm

Agenda:

12:30 pm – 1:00 pm – Introductions and Some Weed ID Terms

1:00 pm – 2:00 pm – Weed ID – Hands-On

2:00 pm – 2:15 pm – Break

2:15 pm – 3:15 pm – What Causes Weeds – Improving Control

3:15 pm – 3:30 pm – Break

3:30 pm – 4:30 pm – Chemical Weed Control