Vol. 15â1961 - NorthEastern Weed Science Society
Vol. 15â1961 - NorthEastern Weed Science Society Vol. 15â1961 - NorthEastern Weed Science Society
372. On spring plowed plots I where the fall and spring applied chemical was plowed dow, the control ofan.n.ual species was poor. Although not significant, the spring plowed plots yielded somewhat higher than the fall plowed plots, except t.reat.mentB 8, 14 and 15. On each of these plots, Quackgrass control was good. In three treatments (2, :3 and 14), fall plowed and not cultivated yielded higher than cultivated. In only two treatments (4 and 9) did fall plowed and cultivated out yield spring plowed and cultivated. In six treatIilents out of 15, the fall plowed and not cultivated plots yielded higher than the spring plowed not cultivated. Again, Quackgrass control was good on these treatments, resulting in less competition to the corn. Also, the yield differences are greater between cultivated and not cultivated on the spring plowed plots than on the fall plowed. This is the result of increased competition due to annual borad-leaved weeds and annual grasses. Cultivation was most beneficial on those plots where poor chemical control was obtained. Based on stand counts and yields ot silage .. the control ot Quackgrass on spring plowed plots was superior to fall plowed. Thus, in the combination ottall and spring treatments, the tall plOWing will result, in better annual broad-leaved weed and annual grass control but the spring plowing will result in better Quackgrass control. Note: A mimeograPhed copy ot the complete paper is availab,le frOm the author.
373. - THE CONTROLOF BEDSTRAW(GALIUMMOLLUGO) IN ESTABLISHEDSTANDSOF BIRDSFOor TREFOILUSING 2,4, 5..TP INTRODUCTION: Stanford N. Fertig b (A Summary Report) Ladies Bedstraw (Galium mollugo) has spread rapidly in NewYork in the past 10 years. It is one of the most commonweeds of roadsides and has be .. come a menacing problem in permanent pastures, established stands of birdsfoot trefoil' and in lawns. The rapid spread of bedstraw can be attributed in a large part to the use of European sources of birdstoot trefoil seed and in more recent years to the purchase of poorly cleaned local seed supplies. EXPERIMENTAL METHODANDPROCEDURE: In the spring end summer of 1959, four separate areas of birdsfoot trefoil, uniformly infested with bedstraw, were treated with two formulations of 2,4,5-TP. The chemicals used, rates per acre and dates of treatment are shown in Table 1. The March, April and May treatments were on first growth bedstraw and birdsfoot trefoil. The August treatments were on regrowth after first cutting. The regrowth on the bedstraw was :3 to 4 inches tall when the August treatments were applied. RESULTSANDDISCUSSION: The control of bedstraw vas excellent on the first three dates of treatment as shown by the stand counts made August 19, 1959, Table 1. The growth of bedstraw at time of treatment ranged from barely visible shoot emergence from the crowns on March 24 to plants 12 to 18 inches tall on May 12. Due to the very poor stands of bir4sfoot trefoil on the plots, accurate evaluation of injury was not possible. However, the treatments applied on March 24 and April 18 did not severely injure the plants present. Compared to the check, there was no reduction in birds foot trefoil stand. ,.. The treat:ments applied August 19 on the regrowth after first cutting were not effective~n controlling bedstraw at any of the rates of chemical used. Observations made on October 28, 1959 and the stand counts made April 21, 1960 shoved recover~ on all plots. . The treatments applied on March 24, April 18 and May 12 gave excellent - i/ Professor of Agronomy, Cornell University, Ithaca, New York.
- Page 322 and 323: 322. Table I Main Effects of Cultur
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- Page 346 and 347: 346 • .Absornt:j.Qn Qn Exchange R
- Page 348 and 349: 348. The' chrona tog ram."WaS first
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- Page 354 and 355: 354. A clos.e correlation was found
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- Page 358 and 359: 358. The 2,4,5-TP was most effectiv
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- Page 364 and 365: 1";. 1958 JFab1e I (cont ' d) Treat
- Page 366 and 367: 366. fiE USE OF FENACFOR QUACKGRASS
- Page 368 and 369: 36$. SUMMARY: Based on a I).umber o
- Page 370 and 371: - Table 1. Chemicals and Rates Used
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- Page 404 and 405: areas, fre1.uently the crews l'UIrL
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- Page 408 and 409: 408. Numerous chemicals have been u
- Page 410 and 411: " A Progress Report on Urab * Brush
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- Page 414 and 415: 414. Urab is an effective chemical
- Page 416 and 417: 416. application. Atrazine has a wa
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373.<br />
- THE CONTROLOF BEDSTRAW(GALIUMMOLLUGO)<br />
IN ESTABLISHEDSTANDSOF BIRDSFOor TREFOILUSING 2,4, 5..TP<br />
INTRODUCTION:<br />
Stanford N. Fertig b<br />
(A Summary Report)<br />
Ladies Bedstraw (Galium mollugo) has spread rapidly in NewYork in the<br />
past 10 years. It is one of the most commonweeds of roadsides and has be ..<br />
come a menacing problem in permanent pastures, established stands of birdsfoot<br />
trefoil' and in lawns.<br />
The rapid spread of bedstraw can be attributed in a large part to the<br />
use of European sources of birdstoot trefoil seed and in more recent years<br />
to the purchase of poorly cleaned local seed supplies.<br />
EXPERIMENTAL METHODANDPROCEDURE:<br />
In the spring end summer of 1959, four separate areas of birdsfoot trefoil,<br />
uniformly infested with bedstraw, were treated with two formulations of 2,4,5-TP.<br />
The chemicals used, rates per acre and dates of treatment are shown in<br />
Table 1. The March, April and May treatments were on first growth bedstraw<br />
and birdsfoot trefoil. The August treatments were on regrowth after first cutting.<br />
The regrowth on the bedstraw was :3 to 4 inches tall when the August<br />
treatments were applied.<br />
RESULTSANDDISCUSSION:<br />
The control of bedstraw vas excellent on the first three dates of treatment<br />
as shown by the stand counts made August 19, 1959, Table 1. The growth of<br />
bedstraw at time of treatment ranged from barely visible shoot emergence from<br />
the crowns on March 24 to plants 12 to 18 inches tall on May 12.<br />
Due to the very poor stands of bir4sfoot trefoil on the plots, accurate<br />
evaluation of injury was not possible. However, the treatments applied on<br />
March 24 and April 18 did not severely injure the plants present. Compared<br />
to the check, there was no reduction in birds foot trefoil stand.<br />
,..<br />
The treat:ments applied August 19 on the regrowth after first cutting were<br />
not effective~n controlling bedstraw at any of the rates of chemical used. Observations<br />
made on October 28, 1959 and the stand counts made April 21, 1960<br />
shoved recover~ on all plots. .<br />
The treatments applied on March 24, April 18 and May 12 gave excellent<br />
- i/ Professor of Agronomy, Cornell University, Ithaca, New York.
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