Vol. 51â1997 - NorthEastern Weed Science Society
Vol. 51â1997 - NorthEastern Weed Science Society Vol. 51â1997 - NorthEastern Weed Science Society
6 3. Hayes H.M., RE. Tarone, K.P. Cantor, C.R Jessen, D.M. McCurnin, and R.C. Rich son. Case-control study of canine malignant lymphoma: positive association with dog 0 ner's use of 2,4-DichlorophenoxyaceticAcid herbicides. J. Natl. Cancer Inst. 83:12 6-1231. 4. Ib M.A., G.G. Bond. T.A. Burke, P. Cole, EN. Dost, P.E. Enterline, M. Gough, RS. reenberg, W.E. Halperin, E. McConnell, I.C. Munro. J.A. Swenberg, S.H. Zahm, and J. . Grahm. 1991. Weight of the evidence on the human carcinogenicity of 2,4-D. Env. ealth Persp. 96:213-222. 5. Mohl r, C.L. 1996. Ecological bases for the cultural control of annual weeds. J. Prod. Agric 9: in press. 6. Mohl r, C.L.•J.C. Frisch. and J. Mt. Pleasant. 1997. Evaluation of mechanical weed mana ement programs for corn (Zea 11U\Y&). Weed TechnoI. 11: in press. 7. w, R S. 1992. Weed control in oat (Avena sativa)-alfalfa (Medicago sativa) and n next year corn (Zea mays) yield. Weed TechnoI. 6:871-877. 8. New ork Agricultural Statistics Service. 1996. New York Agricultural Statistics 1995 1996. N. Y. Agric, Stats, Serv., Albany, NY. 9. " A., N., Silvestri. N. Gini, and A. Coli. 1993. Weed control of winter cereals by of weeding harrows: first experimental results. Agr. Med. 123:236-242. 10. Rasm ssen, J. 1990. Selectivity - an important parameter on establishing the optimum harro .ng technique for weed control in growing cereals. Proc. Europe. Weed Res. Soc. Sym 1990, Integrated Weed Management in Cereals. pp. 197-204. 11. Rasm ssen, J. 1991. A modelfor prediction of yield response in weed harrowing. Weed Res. 1:401-408. 12. Ryd ,T. 1994. Weed harrowing -- the influence of driving speed and driving direc on on degree of soil covering and the growth of weed and crop plants. BioI. Agric. Hort. 10:197-205. 13. Stief; 1,W. and A.I. Popay. 1990. Weed control in organic arable crops. Proc. 43rd N. Z. We and Pest Cont, Conf. pp.138-141. 14. essel, M.J., L.J. Wiles, E.E. Schweizer. and P. Westra. 1995. Weed control efficacy and into bean (Phaseolus VUlgaris)tolerance to early season mechanical weeding. Weed Tec 01.9:531-534.
7 TaL~NCEaFHNE~CU~TaCL~HarnM Larry J. Kuhns And Tracey L. Harpster' ABSTRACT In past studies it was found that fine fescues were immune to the effects of two of the most commonly used graminicides, fluazifop-p-butyl and sethoxydim. This study was initiated to determine the tolerance of three fine fescues; chewings (Festucarubra spp. commutata Gaud. Beaup.), hard (FestucalongifoliaThuill.), and creeping red (Festucarubra L.); to clethodim alone or with a crop oil concentrate (CDC) or a non-ionic surfactant (NIS)2. The treatments presented in Table 1 were applied on October 23, 1995. The percent green cover was rated on May 22 and July 9, 1996. Thq treatments presented in Table 2 were applied on May 31, 1996 and were evaluated on July 9, 1996. All treatments were applied with a CC>:2pressurized test plot sprayer at 30 psi through an ~E nozzle at 22 GPA. A randomized complete block design with three replications per treatment and species was used. Applied inlthe fall at O.25lb/a alone or with NIS, clethodim had little effect on chewings or creeping red fescue (Table 1). With hard fescue, some injury was evident on May 22, but it recovered by July p. The addition of cac resulted in moderate injury to all three species, with only partial recovery by July 9. Severe injury of all species from clethodim applied at l lb/a was evident on May 24' The amount of recovery that occurred by July 9 was dependent on the spray additive used. With none, all of the grasses recovered fairly well. With NIS, moderate injury to hard fescue persisted:and with COC, unacceptable injury to all species persisted. Similar results were obtained when the treatments were applied in the spring (Table 2). The 0.251b/a rate caused slight injury, regardless of additive. The 1.0 Ib/a rate caused severe injury, with treatments including cae injuring hard fescue slightly worse than those including NIS. The 0.5lb/a'rate caused an intermediate degree of injury. None of the clethodim treatments totally killed any of the fine fescues. However, unacceptable injury was caused by the 0.5 and 1.0 lbla rates, regardless of additive, and by the 0.251bla + cac treatment. Injured turf was invaded by broadleaved weeds and was lower quality even after recovering from initial injury. 1 Prof. of Ornamental Horticulture and Research Associate, Dept. of Horticulture, The Pennsylvania State University, University Park, PA 16802 2 X-77 Spreader, Loveland Ind., Inc.•Greeley, CO 80632-1289
- Page 1 and 2: 1 DE~LOPING BEST MANAGEMENT PRACTIC
- Page 3 and 4: 3 MATERIALSANDMETHODS Experiments w
- Page 5: I 5 I Table 3. Stand density of oat
- Page 9 and 10: 9 I CONTROLLING QUACKGRASS WITH CLE
- Page 11 and 12: BELTSV~LLE 11 SUSTAINABLEAGRICULTUR
- Page 13 and 14: Ii 13 I The 1996NEWSSCollegiateWeed
- Page 15 and 16: 15 EFFECTOF rREPLANT TILLAGEANDNICO
- Page 17 and 18: 17 i PENNMUjLCH, A NEW MULCH FOR TU
- Page 19 and 20: 19 cover the sta~es in the Northeas
- Page 21 and 22: 21 I TABLEt CORN WEED CONTROL EFFIC
- Page 23 and 24: 23 COMMON LAMBSQUARTERS CONTROL IN
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- Page 27 and 28: 27 PERFORMANCE OF PREEMERGENCE TREA
- Page 29 and 30: I i I i I I 29 EFFECT OF TANK-MIXIN
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- Page 33 and 34: I I i 33 I EFFECT$ OF EXP 31130A AN
- Page 35 and 36: 35 Effect OfPO~T ApplicationTimingo
- Page 37 and 38: II I ! I ! Ii I I 37 PREE~ERGENCE C
- Page 39 and 40: I 39 U+ OF SLUDGE BASED FERTILIZERS
- Page 41 and 42: i I 41 I EFFECT OF fSOXABEN APPLIED
- Page 43 and 44: I 43 ~STCRABGRASS CONTROL AS lWO os
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6<br />
3. Hayes H.M., RE. Tarone, K.P. Cantor, C.R Jessen, D.M. McCurnin, and R.C.<br />
Rich son. Case-control study of canine malignant lymphoma: positive association with<br />
dog 0 ner's use of 2,4-DichlorophenoxyaceticAcid herbicides. J. Natl. Cancer Inst.<br />
83:12 6-1231.<br />
4. Ib M.A., G.G. Bond. T.A. Burke, P. Cole, EN. Dost, P.E. Enterline, M. Gough,<br />
RS. reenberg, W.E. Halperin, E. McConnell, I.C. Munro. J.A. Swenberg, S.H. Zahm,<br />
and J. . Grahm. 1991. Weight of the evidence on the human carcinogenicity of 2,4-D.<br />
Env. ealth Persp. 96:213-222.<br />
5. Mohl r, C.L. 1996. Ecological bases for the cultural control of annual weeds. J. Prod.<br />
Agric 9: in press.<br />
6. Mohl r, C.L.•J.C. Frisch. and J. Mt. Pleasant. 1997. Evaluation of mechanical weed<br />
mana ement programs for corn (Zea 11U\Y&). <strong>Weed</strong> TechnoI. 11: in press.<br />
7. w, R S. 1992. <strong>Weed</strong> control in oat (Avena sativa)-alfalfa (Medicago sativa) and<br />
n next year corn (Zea mays) yield. <strong>Weed</strong> TechnoI. 6:871-877.<br />
8. New ork Agricultural Statistics Service. 1996. New York Agricultural Statistics 1995<br />
1996. N. Y. Agric, Stats, Serv., Albany, NY.<br />
9. " A., N., Silvestri. N. Gini, and A. Coli. 1993. <strong>Weed</strong> control of winter cereals by<br />
of weeding harrows: first experimental results. Agr. Med. 123:236-242.<br />
10. Rasm ssen, J. 1990. Selectivity - an important parameter on establishing the optimum<br />
harro .ng technique for weed control in growing cereals. Proc. Europe. <strong>Weed</strong> Res. Soc.<br />
Sym 1990, Integrated <strong>Weed</strong> Management in Cereals. pp. 197-204.<br />
11. Rasm ssen, J. 1991. A modelfor prediction of yield response in weed harrowing. <strong>Weed</strong><br />
Res. 1:401-408.<br />
12. Ryd ,T. 1994. <strong>Weed</strong> harrowing -- the influence of driving speed and driving<br />
direc on on degree of soil covering and the growth of weed and crop plants. BioI. Agric.<br />
Hort. 10:197-205.<br />
13. Stief; 1,W. and A.I. Popay. 1990. <strong>Weed</strong> control in organic arable crops. Proc. 43rd N. Z.<br />
We and Pest Cont, Conf. pp.138-141.<br />
14. essel, M.J., L.J. Wiles, E.E. Schweizer. and P. Westra. 1995. <strong>Weed</strong> control efficacy<br />
and into bean (Phaseolus VUlgaris)tolerance to early season mechanical weeding. <strong>Weed</strong><br />
Tec 01.9:531-534.
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