If 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.