Corn Rootworm Pressure Is Rising—Here’s How to Build a Multi Pronged Strategy That Actually Works скачать в хорошем качестве

Corn Rootworm Pressure Is Rising—Here’s How to Build a Multi Pronged Strategy That Actually Works

Field Talk Friday | Dr. John Murphy | Corn Rootworm Strategy, Trait Selection, Rotation & Biological Defense This week on Field Talk Friday, Dr. John Murphy takes on one of the most persistent—and costly—pests in corn production: Corn Rootworm (CRW). The 2025 crop may be in the bin, but if you’re planting corn again next year, now is the time to build your CRW strategy for 2026. Waiting until summer to think about CRW is too late. Dr. Murphy shares insights from his travels across the Corn Belt this past year, where he continued to see areas with severe rootworm pressure, despite traited corn and insecticide programs. “We’re no longer in a one-tool world when it comes to CRW. It’s going to take layers—smart ones.” 🐛 Why Corn Rootworm Is Still a Top Threat Corn rootworm isn’t just a July problem—it’s a multi-year, soil-level challenge that requires planning before the seed even hits the furrow. Key concerns: Resistance is spreading: Traits alone are no longer enough Root feeding leads to lodging and late-season harvest delays Adult beetles are adapting to rotation and chemical timing Yield loss is real—even if plants stay standing Dr. Murphy breaks down how CRW has changed and what we have to do differently going into 2026. 🔄 A Multi-Pronged CRW Approach for 2026 You won’t find a silver bullet in this episode—but you will find a framework for success. 1. Crop Rotation Still one of the most effective CRW controls, especially for Western corn rootworm But be aware: extended diapause variants can survive rotation in certain regions Murphy emphasizes field history tracking and beetle scouting as part of your rotation plan 2. Trait Selection Bt traits still play a role, but stacking is essential Look beyond marketing claims—dig into which proteins are in your hybrid and how they’ve performed under pressure Don’t rely on trait names alone—match traits to your field history 3. Soil-Applied Insecticides Murphy discusses how in-furrow or banded insecticides can enhance protection even on traited corn Not a substitute—but a solid companion when pressure is high Watch timing and placement: insecticide doesn’t fix poor root development or weak hybrid architecture 4. Biological Tools – PPFMs A new tool on the horizon: PPFMs (pink pigmented facultative methylotrophs) These naturally occurring bacteria are being tested for their ability to repel adult CRW beetles and improve early-season vigor AgXplore’s new biological program may offer additional layering to help reduce beetle egg laying and root pressure “We’re not replacing tools—we’re adding smarter ones to the toolbox.” 📊 What Should You Be Doing Now? Dr. Murphy shares a short CRW planning checklist: Review your 2025 planting and pressure notes Pull out beetle trap counts or late-season field observations Talk with your seed provider about exact trait stacks Evaluate rotation options—and check for extended diapause risk Look at your 2025 yield maps—was lodging a factor? Was grain fill uneven? The best plans start early—and involve multiple partners, from agronomists to seed advisors. 🌽 Real-World Questions to Ask as You Plan: Did you see goosenecking or late-season leaning in 2025? Did adult beetles show up earlier or stay longer than expected? Was CRW pressure evenly spread—or worse in certain soil types or zones? How long has this field been corn-on-corn? Are you layering enough tools—or just hoping traits hold? CRW doesn’t care about hope—it responds to pressure, planning, and precision. 📣 Join the Conversation: What’s your current CRW strategy? What has worked well—and what’s shown weakness in your program? Are you using biologicals or layering insecticides with traits? Drop your insights in the comments, or let us know where you’re headed in 2026. The more we share, the more we learn. 🔔 Subscribe to AgXplore’s YouTube Channel Field Talk Friday is built for real-world agronomy—rooted in field pressure, honest observations, and practical strategy. Every week, we cover the things that keep farmers up at night—and give you tools to make better decisions. 👍 Like this video if you’ve seen CRW pressure climbing in your area 💬 Comment with the tool that made the biggest impact in your CRW program 📤 Share this with your agronomist, seed rep, or crop consultant before spring #FieldTalkFriday #AgXplore #CornRootworm #CRWStrategy #TraitSelection #CropRotation #InsecticideLayering #PPFM #BiologicalAgronomy #SoilHealth #CornYield #AgronomicPlanning #PestResistance #AGX