To evaluate the efficacy of adding Oust Extra to site prep applications for HWC the following growing season

South Carolina Mississippi Louisiana

Previous stand = pine-hardwood Harvested 2003/2004 Numerous hardwood seedlings/saplings per acre ( TPA) Established herbaceous cover

Treatments applied early September, 2004 Aerial simulation 10 gpa

Table 1. List of treatments in 2004 DuPont site prep study - MS Trmt. No.Product (Ounces/Acre) ______________________________________________________ 1 Arsenal AC(16) + OE 1 (4) + NIS(16) 2 2Arsenal AC(24) + OE(4) +NIS(16) 3 Arsenal AC(16) + OE(4) + Accord SP (32) +NIS(16) 4Arsenal AC(16) + OE(4) + Accord SP (64) +NIS(16) 5Arsenal AC (24) + OE(4) + Accord SP(32) +NIS(16) 6Arsenal AC(16) + OE(4) + Accord SP (64) +NIS(16) 7 Arsenal AC (16) + OE(3) + NIS(16) +NIS(16) 8 Arsenal AC(24) + OE(3) + NIS(16) +NIS(16) 9Arsenal AC(16) + OE(3) + Accord SP(32) + NIS(16) 10Arsenal AC(16) + OE(3) + Accord SP(64) + NIS(16) 11Arsenal AC(24) + OE(3) + Accord SP(32) + NIS(16) 12Arsenal AC(24) + OE(3) + Accord SP(64) + NIS(16) 13One Step (128) + OE(3) 14One Step (128) + OE(4) 15Arsenal AC(12) + OE(3) + Accord SP (192) 16Arsenal AC (12) + OE(4) + Accord SP(192) 17Untreated Check 1 OE = Oust Extra, 2 NIS = 90% nonionic surfactant (Timberland 90)

17 Treatments 3 reps (SC and LA) or 4 reps (MS) RCB

6 WAT Brownout Grass, broadleaf, vine cover in May, June, July, August 2005 Hardwood control - September, 2005

Table 2. Average percent grass cover by treatment and time of observation in 2004 DuPont site prep study- MS (Avg. all reps) _______________________________________________________________ Time of Observation Trt. No.MayJune July August Percent ab117.7b24.2ab23.7a 20.5a2.0a5.0a26.2a 30.5a1.0a9.7a25.0a 42.5a5.7a22.5ab45.0b 50.0a5.4a7.5a20.0a 60.0a5.4a10.0a31.2a 78.0a3.5a5.7a22.5a 83.0a3.7a12.5a23.7a 90.5a2.0a6.5a21.2a 100.0a3.2a13.0a42.5b 111.7a17.7b17.2a37.5b 121.3a7.7a17.0a33.7ab 130.7a6.2a13.7a27.5a 1.0a0.0a3.5a12.5a38.7b 150.3a5.0a15.0a16.7a 160.3a2.0a6.5a36.2b c45.0c37.5b38.7b 1 Values in a column followed by the same letter do not differ at 

MAY

JUNE

AUGUST

Table 3. Average percent broadleaf cover by treatment and time of observation in 2004 DuPont site prep study - MS _______________________________________________________________ Time of Observation Trt. No.MayJune July August Percent a 1 3.5a12.0a15.0a 21.2a0.7a5.0a 7.0a 30.7a5.5a12.2a12.7a 40.5a7.0a20.0b36.2c 50.5a3.7a11.7a16.2a 60.2a13.7ab15.0a25.0b 70.2a0.7a3.0a 6.2a 81.0a5.7a7.2a17.5a 91.2a5.5a16.7a18.7a 101.2a8.2a25.0b35.0b 111.0a13.7ab36.5c47.5d 121.5a30.3c41.2c57.5d 131.5a29.2c41.2c57.5d 140.7a8.0a20.0b28.7b 151.0a31.0c40.0c46.2d 160.7a5.7a7.0a20.0ab a17.5b17.5ab15.0a 1 Values in a column followed by the same letter do not differ at 

Table 5. Average percent bare ground cover by treatment and time of observation in 2004 DuPont site prep study - TX (avg. all reps) _______________________________________________________________ Time of Observation Trt. No. MayJune July August September Percent Values in a column followed by the same letter do not differ at  173a 1 57d40ab17cdef8cd 272a60d38ab20bcdef9bcd 383a73abcd58a37abc27ab 491a83ab60a48a40a 572a65bcd45ab32abcd25abc 673a65bcd43ab35abc25abc 783a72abcd45ab13def8cd 878a67abcd38ab18bcdef11bcd 980a62cd25b11ef5d 1090a82abc43ab20bcdef13bcd 1189a83ab45ab23bcde19bcd 1273a65bcd43ab25bcde17bcd 1388a77abcd57a27bcde15bcd 1490a87a50ab32abcd23abc 1582a62cd38ab27bcde10bcd 1672a63bcd45ab38ab27ab 1718b5e2c2f2d

MAY

JUNE

AUGUST

Table 6. Average percent vine cover by treatment and time of observation in 2004 DuPont site prep study- MS (Avg. all reps) _______________________________________________________________ Time of Observation Trt. No.MayJune July August Percent b33.7b48.7c50.0c 210.2a10.5a13.7a21.7b 38.0a8.7a11.2a21.2b 45.0a8.7a15.5ab 51.5a13.5a16.7ab30.0b 64.5a6.2a17.5ab23.7b 725.2b15.7a25.5b26.2b 85.2a7.0a24.5b 91.7a3.2a11.5a25.0b 106.0a2.0a3.7a9.7a 111.0a9.0a12.5a13.7a 120.5a1.0a1.7a9.7a 130.5a1.2a2.2a6.2a 141.0a1.2a 4.0a a1.7a 3.0a 160.7a1.7a 4.7a b25.0b33.7b35.0b 1 Values in a column followed by the same letter do not differ at 

Table 7. Average percent woody plant cover by treatment and time of observation in 2004 DuPont site prep study- MS (Avg. all reps) _______________________________________________________________ Time of Observation Trt. No.MayJune July August Percent a5.2a 6.5a 20.5a2.0a3.5a5.0a 30.0a1.7a4.0a6.0a 40.0a2.5a4.5a5.5a 50.2a3.0a5.2a6.5a 61.5a1.2a5.2a6.0a 71.7a3.2a5.2a6.0a 80.5a1.5a5.2a5.5a 91.0a2.5a5.0a7.2a 101.0a3.5a4.2a6.2a 111.7a 3.0a6.0a 120.2a0.5a1.5a5.5a 130.2a3.0a4.5a5.0a 1.0a0.5a2.0a 5.5a 150.0a0.5a2.0a5.0a 160.7a1.2a2.0a4.5a b70.0b75.0b Values in a column followed by the same letter do not differ at 

Table 8. Average percent reduction of principal woody species in 2004 DuPont site prep study- MS (Avg. all reps) ______________________________________________________________ Species 1 Trt. No. POO REO HIC REM TOT Percent a c+50.0d a76.9b 298.2a93.8a58.8b82.3b85.4a 398.7a79.5ab54.7b87.7a85.7a 499.5a84.7a72.0ab83.3ab89.3a a82.2a27.0c89.6a82.8a a89.7a78.5a93.5a88.9a 797.7a94.7a57.8b83.7ab83.9a 898.0a86.7a60.0b97.8a94.3a a74.7b44.4c76.6b82.7a a80.8ab51.3b80.1b81.8ab a85.7a+42.9d84.7ab84.0a a91.5a73.8a92.5a91.8a a95.1a66.7b97.2a93.5a a90.9a86.9a95.3a95.8a a87.7a73.9a93.6a89.6a a94.0a77.8a98.7a94.6a b+8.0d37.2c+70.2c+36.5c 1 POO = post oak, REDO= red oak, HIC = hickory, REM = red maple, TOT = all tree species; 2 values in a column followed by the same letter do not differ at  = 0.05; 3 plus sign = an increase in stems

Table 10. Average percent woody cover and percent reduction of woody species 1 YAT in 2004 DuPont site prep study-LA (Avg. all reps) ______________________________________________________________ Woody Species 1 Treatment SWG MISC ALL COVER Percent SWG = sweetgum, MISC = oak, yaupon, red maple; 2 values in a column followed by the same letter do not differ at  = 0.05; 3 plus sign = an increase in stems AR+OE+AC ( )100.0a ab77.2a16b AR+OE+AC ( )95.8a68.3abc53.4ab14bc AR+OE+AC ( )100.0a86.2ab86.2a12bcd AR+OE+AC ( )88.9a73.7abc45.6abc2d AR+OE+AC ( )92.6a86.3ab76.6a4cd AR+OE+AC ( )80.6a81.5abc64.7ab3d AR+OE+AC ( )90.0a85.2ab58.9ab7bcd AR+OE+AC )100.0a78.8abc67.2ab2d AR+OE+AC ( )94.4a62.2bc32.2bc7bcd AR+OE+AC ( )96.7a85.7ab69.9ab3d AR+OE (16+3)74.8a100.0a55.6ab2d AR+OE (16+4)96.3a87.7ab75.5ab4d AR+OE (24+3)77.8a87.6ab69.6ab3d AR+OE (24+4)100.0a69.9abc66.8ab2d AR+OE (128+3)100.0a89.7ab81.6a1d AR+OE (128+4)100.0a78.6abc72.6ab2d Check16.7b49.1c10.6c40a