Mass Trapping For Summer Thrips, Part 1: Why Trap and When to Start (Answer: This Week!)
Sometimes your thrips biocontrol program is working great. Other times, it seems to get completely overwhelmed. Thrips can get out of control in Summer , when fall crop production is ramping up. This is where mass trapping can really help. This post will cover where thrips come from, which species we find on cards, and when the best time is to add mass trapping to your thrips IPM program. And stay tuned for Part 2, which will cover ways to optimize your mass trapping ! Where Do Thrips Come From? Outside Pressure = Inside Problems? Preventing Onion Thrips Infestations What About Western Flower Thrips? When to Start Trapping Take Home Messages Where Do Thrips Come From? Figure 1. Thrips numbers and species were monitored directly outside the greenhouse of both side- and top-venting facilities. Although we know that thrips come in on plant material, including cuttings and whole plants, this is only half of the story. (For more info on thrips on cuttin...