The “Tipping Point” for Whitefly Control in Poinsettia

Picture1If you started out  using biological control in your Poinsettia crop this year, you’ve now reached the crucial tipping point for whitefly control decisions.

Based on the size of your whitefly population in mid-late September, your populations could end up too high by November  to effectively control.  Ultimately, this could affect sales.

So, do you keep going, and hope for the best?  Or switch horses mid-stream, and start using chemicals?  To help you determine which is the right call, keep reading.

Continue reading “The “Tipping Point” for Whitefly Control in Poinsettia”

Got thrips? Check out this exciting new resource!

It’s an exciting time for Floriculture IPM!  I am VERY pleased to announce the launch of the all new GreenhouseIPM website! GreenhouseIPM.org presents a compilation of up-to-date information on Integrated Pest Management (IPM) and biological control  in greenhouses.

And, as part of the website launch, we are holding a  FREE THRIPS WORKSHOP (with a free lunch!).  The workshop will cover all the components of thrips IPM and how they fit into a greenhouse production system.

Dates are Nov 23rd (8:30-1pm) OR Nov 30th (8:30-1pm) at Rittenhouse Hall.  Please RSVP Rose Buitenhuis: (rose.buitenhuis@vinelandresearch.com or 905-562-0320 x749).  SPACE IS LIMITED SO RESERVE YOUR SPOT NOW!

The most current information on thrips and whitefly IPM is now at your fingertips at greenhouseipm.org.

GreenhouseIPM.org provides detailed descriptions of pests, biocontrol agents  and detailed instructions on how best to use biocontrols within an IPM program.

Its initial format it focuses on two key pests – whiteflies and thrips – and their control. The site will evolve to encompass all common insect and mite pests, as well as diseases, in greenhouse crops.

Pests on Points: head off problems now!

Many of you will be getting in your poinsettia cuttings a few short weeks from now.  Why not head off whitefly issues as soon as the points come in the door? 

Whitefly on poinsettia.

Whitefly on poinsettia. Photo by Graeme Murphy.

Drs. Rose Buitenhuis and Michael Brownbridge of the Vineland Research and Innovation Centre put on their thinking caps and came up with an elegant solution to prophylactically treat the whitefly that inevitably come in with poinsettia cuttings. By dipping cuttings  in reduced-risk insecticidal products (BotaniGard, horticultural oils) before sticking, whitefly populations can be reduced in the crop by over 70%. And, because the dip materials are “soft” pest control products, you can (and should) begin your biocontrol program immediately.  Dips should be effective against both biotypes Bemisia (aka silverleaf whitefly), as well as greenhouse whitefly.

For more details on products, proceedures and rates, click here: http://www.flowerscanadagrowers.com/uploads