Submitted by Orvis Fly Fishing on Wed, 2015-09-02 06:22 View on Orvis.com Tip of the week Techniques Go deep with nymphs.Look for tiny may flies and Tan Caddis. Hoppers and beetles beginning to take some fish Seven-day forecast Avoid the South Branch. Huge, criminal fish kill. Investigation underway, no one held responsible yet. Thousands of trout killed. Call DNR to prosecute the person responsible if you know anything. Helicopter aerial spraying of fungicide suspected. Stay tuned but fish somewhere else. Conditions Must Have Flies Adams Classic 12-16 Buy from Orvis.com Bead Head American Pheasant Tail Classic 14-12 Buy from Orvis.com Elk Wing Caddis tan 18-14 Buy from Orvis.com Indicator Spinner - Trico yellow 12-18 Buy from Orvis.com Bead Head Hare's Ear Nymph natural 16-12 Buy from Orvis.com Bank Beetle 16 Buy from Orvis.com Driftless Flyfishing Co.