Category: News
Date published: April 15, 2025

Protect Poinsettias From Whiteflies

Koppert recommends running a poinsettia IPM program from the time you land your inputs to shipping in November. Poinsettia crops start when whiteflies develop the fastest, and just a few pests can turn into hundreds of thousands by August. The unique combination of beneficials in Isarid™ mycoinsecticide, Swirski-Mite predatory mites, and Enermix wasps overwhelms whiteflies and keeps them pinned down from the very first week the crop hits the facility.

Koppert’s poinsettia experts can help figure out the best timing and application strategy for a particular crop based on its individual requirements:

Koppert's Poinsettia Team

Lane Holland

IPM consultant for IL, MO, & IN
lholland@koppert.com

Chris Anzell
IPM consultant for MI & OH
canzell@koppert.com

Phil Gerry
IPM consultant for New England & New York
pgerry@koppert.com

Kristen Fowler
IPM consultant for PA & NJ
kfowler@koppert.com

Nan McKay
IPM consultant for MD, VA, DC, & WV
nmckay@koppert.com

Jordan Seward
IPM consultant for AZ and CA Desert Region
jseward@koppert.com

Bill Rietkerk
IPM consultant for Southern CA (Salinas and South)
brietkerk@koppert.com

Mary de Soto
IPM consultant for Northern CA (Salinas to the North)
mdesoto@koppert.com

Management Team

Heidi Doering
National Ornamental Technical Specialist
lPM consultant for WI, MN, & IA
hdoering@koppert.com

Joe Brenton
Southeastern Team Manager
jbrenton@koppert.com

Jeremy Webber
National Ornamental Team Manager
jwebber@koppert.com

Recommended Products

ENERMIX, SWIRSKI-MITE & ISARID™ kill whiteflies before they get rolling.

For complete information on any of these products, use the link below to view it on Koppert’s website. Each product page includes the beneficial organism, its scientific name and uses, how it works, directions for use, and product handling.

By the way…

If fungus gnats are a problem the best solution is ENTONEM during propagation.

Whitefly Control with Isarid.

Koppert Resources

Evolution of Poinsettia IPM, in GrowerTalks, May 2025

In this article, Jeremy Webber, Koppert’s Ornamental Team Leader, traces the evolution of poinsettia biocontrols from their introduction into the United States until today. Biocontrols have their roots in tomato crops but needed several key changes to be effective for poinsettias. Knowing those changes helps in building a stronger IPM program for this crop.


Finish Clean With An IPM Based Program

Koppert believes a perfect poinsettia begins when the plant is barely sticking out of the soil. An IPM program starts from the roots, works its way to the foliage, and helps monitor for invasive pests throughout the growing cycle. This detailed review of the benefits of an IPM program for the poinsettia grower explores the aim of the program, its advantages, and the growing importance of IPM in today’s world.

A Step-By-Step Guide To Whitefly Control

A lot of basic whitefly questions are answered in this detailed guide. It starts with early detection monitoring and accurate identification. Then symptoms of whitefly damage and their economic impact are discussed. Solutions follow, along with product recommendations such as Horiver cards for mass trapping, parasitic wasps, predatory mites, and beneficial fungi.

Why Isarid™ Is A Grower-Approved Ally Against Pests In Ornamentals

Green Valley Greenhouse of Ramsey, Minnesota is an ornamental grower with a wide range of volume crops including poinsettias. This is a look into why they use Isarid™ as one of their foundation products to provide pest prevention for a wide range of crops.