Peanut Yield Response to PRE Applications of DNA Herbicides PE-11-03 Ponder Farm P = 0.346 2 pts/A3 pts/A1.8 pts/A2.4 pts/A1.6 pts/A2.1 pts/A
Peanuts New Metolachlor Formulations Cinch – Dupont –same as Dual II Magnum – cannot use POST Stalwart C – Sipcam Agro USA Inc. – old Dual EC formulation (7.8 lbs/gal) – not labeled for peanut Me-Too-Lachlor –Drexel –old Dual EC formulation (8 lbs/gal) – rates are too low
Peanuts Strongarm Postemergence labeled in March 2000 PPI, PRE, AC broadleaf weeds 0.45 ozs/A $15-18/A 6% of GA acres in 2001 10 month cotton rotation restriction ALS inhibitor
Untreated Strongarm applied 17 DAP Strongarm applied 31 DAP PE-24-03 46 DAP Tropical spiderwort control with POST applied Strongarm, 2003
Bristly Starbur Control with POST Applied Strongarm, 2003 PE-27-03 32 DAT Untreated Strongarm @ 0.45 ozs/A Strongarm @ 0.113 ozs/A
Untreated Strongarm 0.45 ozs/A + 80/20 @ 0.25% v/v (Applied 5 WAP) 11 WAP Annual MG Control with POST Applied Strongarm, 2003
PE-15-03 67 DAT Wild poinsettia control with POST herbicides, 2003 Untreated Cadre @ 1.44 ozs/A Strongarm @ 0.45 ozs/A
Wild Radish Control with POST Applied Strongarm (1, 3-4 leaf) Untreated Strongarm 0.45 ozs/A Strongarm 0.225 ozs/A 40 DAT
Peanuts Strongarm Postemergence Summary good to excellent POST control of several species reduced rates on sensitive species such as bristly starbur, annual morningglory, wild radish timing and rate are critical on some species such as beggarweed no POST control of sicklepod not labeled at this time but working on this issue rotation restrictions?????
Bristly Starbur in Peanut 6th most troublesome weed in GA a.k.a. goat-head, Texas sandspur weed-free - 6 weeks interference - 2 weeks 1 plant per meter of row = 14% yield loss Strongarm, Basagran SWSS Weed ID Guide
Bristly starbur control with POST applications of Strongarm, 2003 1-15 tall bristly starbur Included 80/20 @ 0.25% v/v
Reduced Rates of Strongarm and Valor - I PE-01A-03 91 DAP Untreated Strongarm 0.45 ozs/A Valor 3 ozs/A Strongarm 0.113 ozs/A + Valor 0.75 ozs/A
Reduced Rates of Strongarm and Valor - II PE-01B-03 91 DAP Untreated Strongarm 0.45 ozs/A Valor 3 ozs/A Strongarm 0.113 ozs/A + Valor 0.75 ozs/A
Economic Returns from Reduced Rates of Strongarm (S), Valor (V), and Cadre - I PE-01A-03 Tifton
Economic Returns from Reduced Rates of Strongarm (S), Valor (V), and Cadre - II PE-01B-03 Attapulgus
Summary Reduced Rates less injurious than Valor at full rate similar weed control except for tropical spiderwort and annual mg when used in total program (pre + post), equivalent yields and net returns when compared to full rate programs same program in one field may not be the best in another field digging efficiency/weed seed bank concerns in field with a few escapes?