2017 Missouri Invasive Forest Pest Council strategic plans and stakeholder meetings

Strategic plans

Stakeholder meeting

Missouri Invasive Forest Pest Council stakeholder meeting

The annual MIFPC stakeholder meeting convened on Jan. 30, 2017, at the Missouri Department of Conservation's Central Region Office in Columbia. Twenty-six attendees represented the following agencies or organizations:

  • American Walnut Manufacturers Association
  • Missouri Consulting Foresters Association
  • Missouri Department of Agriculture (MDA)
  • Missouri Department of Conservation (MDC)
  • Missouri Department of Natural Resources
  • Missouri Farm Bureau
  • Missouri Forest Products Association
  • Missouri Nut Growers Association
  • University of Missouri Extension
  • USDA APHIS Plant Protection and Quarantine (USDA APHIS PPQ)
  • USDA Forest Service (USDA FS)
  • Walnut Council, Missouri chapter

Meeting presentations

Emerald Ash Borer, EAB, Update (PDF)

  • Collin Wamsley, State Entomologist, MDA

Gypsy Moth Update (PDF)

  • Sarah Phipps, Forest Pest Program Coordinator, MDA

Thousand Cankers Disease, TCD, Update (PDF)

  • Collin Wamsley, State Entomologist, MDA

TCD Survey and Research Update (PDF)

  • Simeon Wright, Forest Pathologist, MDC

Exotic Wood Boring and Bark Beetle Surveys (PDF)

  • Christopher Pierce, Pest Survey Specialist, USDA APHIS PPQ

Invasive Pest Pathway Assessment and Survey Targeting (PDF)

  • Christopher Pierce, Pest Survey Specialist, USDA APHIS PPQ

Invasive Forest Pest Outreach (PDF)

  • Robbie Doerhoff, Forest Entomologist, MDC

Emerging Forest Pest Threats (PDF)

  • Robbie Doerhoff, Forest Entomologist, MDC

Q&A Session

Q: Can landowners buy EAB parasitoids?
A: Not at this time, but MDA/USDA APHIS PPQ would consider releasing parasitoids on private property if a good site was available.

Q: Are there any practices that a landowner can do to minimize the possibility of gypsy moth impacting a specific forest stand?
A: Gypsy moth is not known to be reproducing in MO at this time. The national Slow the Spread program means it could be many years before we have reproducing gypsy moth populations in Missouri.  To limit the impact, make sure you are using good forest management practices, maintaining proper stocking levels for the site, and encouraging a diversity of tree species. In states where gypsy moth can be a problem, landowners can do egg mass surveys in the early fall and from that information, aerial spray treatments can be scheduled to help reduce caterpillar populations.

Q: With the recent drought in the southeastern US, especially in Tennessee, is there any information on the impact to walnut trees in TCD positive locations?
A: There is no information suggesting new symptom development yet.  We will be looking for that information during the 2017 growing season.

Q: Is there any research looking at the links between walnut twig beetle attack and drought? Can walnut twig beetle attack be prevented if trees are irrigated?
A: Research in Tennessee and Virginia suggested symptom development may be enhanced by drought conditions, although more research is needed. 

Q: Does the current lack of TCD symptom development in TCD-positive areas of the eastern US mean TCD will not be a big problem in Missouri?  Couldn't TCD become a big problem if or when weather patterns become adverse?
A:  We don't know the answer.  More research will help us understand the risk. 

Q: How long is Geosmithia morbida (fungus associated with TCD) viable on a collected insect?
A: G. morbida DNA has been detected on most walnut twig beetles tested, but testing suggests viable G. morbida spores may not always be present.  We don't know how long G. morbida may remain viable.   Insect screening work proposed in Missouri will focus on detecting G. morbida DNA to help us determine if the fungus is already established in Missouri and is present on insects other than the walnut twig beetle. 

Q: Has there been any success in intercepting pests from quarantined areas? Is the walnut quarantine being enforced?
A: MDA has conducted firewood surveys and found some issues from quarantined areas.  They followed up to ensure products were returned from Missouri. MDA has also worked with Missouri State Highway Patrol to ensure staff are aware of the walnut quarantine.  Some calls were received from weigh stations regarding log shipments.

Q: Some sawmills might be concerned about walnut twig beetle traps near their operations because they don't know what will happen if WTB is captured.
A: Regulatory actions depend on the details of the detection. Traps placed on walnut trees on other properties near mills may detect walnut twig beetles if they are present in the area.

Q: Why has there been no mention of invasive plants at this meeting, as they are an increasingly significant problem with a big impact?
A: MDC has been addressing invasive plant issues in forested areas and invasive plant outreach is occurring. MDC is putting together an Invasive Species Task Force that will work to address the entire range of invasive species in Missouri.