dutch trig preventative treatment of american elms against dutch elm disease
Download
Skip this Video
Download Presentation
DUTCH TRIG ® Preventative treatment of American elms against Dutch elm disease

Loading in 2 Seconds...

play fullscreen
1 / 24

DUTCH TRIG Preventative treatment of American elms against Dutch elm disease - PowerPoint PPT Presentation


  • 766 Views
  • Uploaded on

DUTCH TRIG ® Preventative treatment of American elms against Dutch elm disease. Presentation setup:. Dutch Elm Disease History and Goals Characteristics How does Dutch Trig ® work The injection Re search and re sults. The problem: Dutch elm disease. Himalayan origin (not Dutch .. )

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'DUTCH TRIG Preventative treatment of American elms against Dutch elm disease ' - Antony


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
presentation setup
Presentation setup:
  • Dutch Elm Disease
  • History and Goals
  • Characteristics
  • How does Dutch Trig® work
  • The injection
  • Research and results
the problem dutch elm disease
The problem: Dutch elm disease
  • Himalayan origin (not Dutch..)
  • Fungal infection, Ophiostoma novo-ulmi
  • Vascular wilt
  • Infection from:
  • Elm bark beetles
  • Root grafts
history dutch trig
History Dutch Trig®
  • 1980: Biological control using bacteria
  • 1989: Discovery of Verticillium protectiveeffect
  • 1991: Development of the Tree injection tool
  • 1992: Full registration in Europe
  • 1995: Introduction USA
  • 1998: Experimental Use Permit
  • 2005: Fully EPA Registered
the goal
The goal
  • Prevent elms from dying
  • Reduceamount of chemicals used
  • Treat large numbers
basic requirements
Basic requirements
  • Biological Control
  • Specialized application tool
the vaccine
The vaccine
  • Verticillium spores in distilled water
  • Common soil organism
  • White variant of Verticillium albo-atrum
  • Produced in the Netherlands
how it works short version
How it works (short version)
  • Inject Dutch Trig
  • Spores germinate
  • Tree reacts
  • Result: Induced resistance
when is dutch trig effective
When is Dutch Trig® effective
  • On healthy elms in areas where DED prevails
  • Injected on a yearly basis, on time application

What endangers effectiveness

Root grafts with diseased trees

Injecting diseased trees

why inject
Why inject
  • Use as little control agent as possible
  • Closed injection system
  • Use Bio-agent directly on targeted tree only
  • Ensure direct uptake by tree
  • Minimal wounding
  • Speed of application
when and where to inject
When and where to inject
  • When: At 25% leaf expansion (May 1-10th)
  • When tree is transpiring
  • Before beetle infection occurs
  • Where: At convenient breast height
  • Every 4 inches circumference
how to inject
How to inject
  • Check for DED signs (on tree and in the area)
  • Push chisel through the bark
  • Pullthe trigger once
  • Twist the gun slightly sideways
efficacy study u of wisconsin
Efficacy study U. of Wisconsin
  • Controlled Greenhouse Study
  • Using ‘Ramets’
  • 4 treatment groups:
  • Water (control)
  • Dutch Trig
  • Dutch elm disease
  • Dutch Trig + Dutch elm disease
  • 17 different clones
  • 2 strains of DED
  • 10 ramets per group
tracking ded infection response

100%

75%

50%

DEDTrace

25%

0%

Tracking DED infection response

Ramet

Cutting

X-section

dutch trig s pathogenicity
Dutch Trig’s Pathogenicity
  • Ulmus americana
  • U. procera
  • U. hollandica
  • U. carpinifolia
  • U. pumila
  • Malus spp.
  • Castanea spp.
  • Prunus serrata
  • Aesculus hippocastanum
  • Viburnum spp.
  • Sorbus aucuparia
  • Magnolia spp.
  • Betula papyrifera
  • Acer saccharum
  • Quercus rubra
  • Crataegus monogyna
  • Acer macrophyllum
  • Cornus nuttallii
  • Prunus lusitanica
  • Rhododendron spp.
  • Fagus spp.
ded control with dutch trig
DED Control with Dutch Trig:
  • + reduce losses (+/- 1%)
  • + yearly check of elm by arborist
  • + affordable
  • + biological, non toxic
  • + fast, safe, easy
  • + active
  • +/- yearly treatment
  • - not effective against root graft infections
  • not curative
  • cooled transport
dutch trig
Dutch Trig®
  • A safe and easy to use biological tool to assist in protecting urban elm populations

Midwest Distribution:

More Info:

www.dutchtrig.com

ad