| |
| Web URL(s): | http://www.newss.org/proceedings/proceedings_2000_vol54.pdf#page=145
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
|---|
| Publication Type:
| Report |
|---|
| Author(s): | Pennucci, Annamarie |
|---|
| Author Affiliation: | Northeast Turf and Ornamental Research, Raymond, NH |
|---|
| Title: | Incorporating quiclorac in autumn turfgrass renovation efforts |
|---|
| Section: | 1999 Presented Papers - Supplement of the 53rd Annual Meeting of the Northeastern Weed Science Society
Other records with the "1999 Presented Papers - Supplement of the 53rd Annual Meeting of the Northeastern Weed Science Society" Section
|
|---|
| Meeting Info.: | Cambridge, MA: January 4-7, 1999 |
|---|
| Source: | Proceedings of the 54th Annual Meeting of the Northeastern Weed Science Society. Vol. 54, 2000, p. 145. |
|---|
| Publishing Information: | College Park, MD: Northeastern Weed Science Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Application timing; Quinclorac; Turf renovation; Autumn; Crabgrass control; Broadleaf weed control; Seeding time; Fine fescues; Festuca ovina subsp. duriuscula; Festuca ovina subsp. ovina; Germination
|
|---|
| Abstract/Contents: | "Quiclorac (Q) (Drive, BASF) is a unique chmistry that offers both pre and postemergent herbicidal control of crabgrass and a partial list of broadleaf weeds. Q provides six to eight weeks of optimal preemergent control of crabgrass but can be very effective when applied through seedhead exertion and seed drop. The influence of late and ultra-late applications on turfgrass renovation efforts is unknown and experiments were undertaken to determine the effect of Q treatment date on subsequent seed germination, establishment, and seedling vigor. Attempts were made to determine the optimum date of seeding following Q application and to determine the minimal interval necessary to avoid turfgrass seedling stand loss. Quinclorac at 1.0 lb ai/1000ft² was applied to three replicate large 12 x 12' plots containing 25% or more crabgrass on each of four postemergent timings: late post (4 tillers), ultra late (6-7 tillers), at seedhead exertion and post crabgrass anthesis (early and midmonth in both July and August). One cultivar each of fine, hard and sheep fescue were drop seeded into 2 foot wide strips within Q plots on each of three seeding dates: Sept 5, Sept 15, Oct 5. An early frost seeding of one fine and one hard fescue was made on Nov 5 into the remaining strips of each Q plot. Seed germination and seedling vigor were visually estimated 1, 2, 4, and 8 weeks after seeding (was). None of the three grasses seeded Sept 5 germinated in this test. This represents seeding 6w after late, 5w after ultra late, 4w after exertion and 3w after post-anthesis Q treatments. Evaluations made 1, 2, 4, or 8 was revealed no observable germination. Less than 10% germination was noted in late post (8wat) Sept 15 date. Less than 25% of fine or hard fescues germinated when seeded 10wat or Oct 5 date. Germination events appeared slow and seedling vigor was poor. Frost seeding[s] made Nov 5 were the only successful renovation seedlings in this test. Nearly 50% germination was observed in late and ultra late seedings (14 and 13 wat respectively). Quinclorac cannot be used at its optimum crabgrass control dates if turfgrass renovation efforts are to follow. Where ultra late crabgrass control is desired, subsequent seeding efforts are best accomplished as frost or dormant seedings or delayed until the following spring. While frost seeding increases the likelihood of renovation success, these late seedlings often exhibit "frost-delay" and the resulting turfgrass quality may not be as high as expected or desired." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | Tables |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Pennucci, A. 2000. Incorporating quiclorac in autumn turfgrass renovation efforts. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 54:p. 145. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=65452 |
| If there are problems with this record, send us feedback about record 65452. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://www.newss.org/proceedings/proceedings_2000_vol54.pdf#page=145
Last checked: 07/24/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 v. 54 |
| Find from within TIC:
Digitally in TIC by file name: newss2000 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
