Group Title: ARC-A research report - Agricultural Research Center-Apopka ; RH-80-4
Title: Experimental herbicide treatments applied preemergence for the supression of weeds in leatherleaf fern beds
CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00065938/00001
 Material Information
Title: Experimental herbicide treatments applied preemergence for the supression of weeds in leatherleaf fern beds preliminary results
Series Title: ARC-A research report
Physical Description: 4 leaves : ; 28 cm.
Language: English
Creator: Stamps, R. H ( Robert Huguenor ), 1948-
Mathur, D. D
Agricultural Research Center (Apopka, Fla.)
Publisher: IFAS, University of Florida, Agricultural Research Center-Apopka
Place of Publication: Apopka Fla
Publication Date: 1980
 Subjects
Subject: Weeds -- Control -- Florida   ( lcsh )
Herbicides -- Application -- Testing -- Florida   ( lcsh )
Leatherleaf fern -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: R.H. Stamps and D.D. Mathur.
General Note: Caption title.
 Record Information
Bibliographic ID: UF00065938
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 70915167

Full Text





HISTORIC NOTE


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
(EDIS)

site maintained by the Florida
Cooperative Extension Service.






Copyright 2005, Board of Trustees, University
of Florida






+t- FO-
EXPERIMENTAL HERBICIDE TREATMENTS APPLIED PREEMERGENCE FOR THE SUPPRESSION
OF WEEDS IN LEATHERLEAF FERN BEDS PRELIMINARY RESULTS-_
,hUi E L LURARY |
R. H. Stamps and D. D. Mathur
IFAS, University of Florida i
Agricultural Research Center Apopka
ARC-A Research Report RH-80-4
3^S.- Univ^. of Flrrida
Weed competition is a serious obstacle to the establishment an-d i conEomi

maintenance of commercial leatherleaf fern (Rumohra adiantiformis (G. Forst.)

Ching) beds. Weeds utilize expensive fertilizers, precious water and valuable

space that could otherwise produce fern and thus energy available in

the form of nutrients, moisture and sunlight is largely wasted. In addition

to competition for resources, weeds interfere with hand harvesting and pre-

clude implementation of mechanical harvesting.

Hand weeding is the primary method of weed suppression employed in the

fern industry. This practice is expensive and may reduce fern yields due

to mechanical damage to the fern. Adequate labor to perform this task is

not always available. Rototilling of aisles is costly both in dollars

and energy. In addition to mechanical methods of weed suppression, chemical

methods utilizing herbicides can aid in the economic and energy efficient

suppression of weeds in ferneries.

This article presents preliminary results of preemergence herbicide

screening tests that have been carried out during 1979 and 1980. These

tests were carried out in commercial ferneries in central Florida. Appli-

cation rates for commercial formulations are given. Weed s.epression

ratings and comments are included. Plots were weeded every 4 months and

herbicides applied immediately after each weeding.








Ccmnercial Product(s),
Fcormulation(s), Rate(s)/Acre

None


ScottsR Ornamental Herbicide Ia, 4G,
50 Ibs.


ScottsR OHIa, 4G, 50 lbs. +
25 lbs.

ScottsR OHIa, 4G, 50 lbs. +
1/4 gal.
R
DualR, 6E, 1/3 gal. or 15G,.
PrincepR, 80W, 1.25 lbs. or

PrincepR, 80W, 1.25 lbs. or

ScottsR OHIa, 4G, 25 lbs. +
1/2 gal.

ScottsR OHIa, 4G, 25 lbs. +
5 Ibs. or 20G, 20 lbs.

LcottsR O:i:, 4G, 25 lbs. +


Scotts1 OI" 1, 4G, 25 lbs. +
i/3 lb.

ScottsR OHIa, 4G, 50 lbs. +
1/3 lb'
R
Princep 80W, 1.87 lbs. or
* IgranR, 80W, 1/3 lb.


16

a-oir


PrincepR, 4G,


BoleroR, 8E,


13.3 +
4G, 25 lbs.

4G, 25 lbs.
R
BoleroR, SE,


RamrodR, 65W,


Dual 6E,


Igran 3CW,


Igran 80W,


4G, 37.5 lbs.


RamrodR, 65W, 9.25 lbs. or 20G, 30 lbs.

twi.e as much ChipcoR Ronstar G.


PIC,-
Nufmbe;*^ )

1, 15, 22.
36

2, 2


Fair


Comments

Reduction in yield observed.


No yield reduction to date.
Does not control chickweed.


Weed
Suppression

None


Very Good


Very Good


Very Good


Very Good


Fair

Very Good


Good


Very Good


Good


Good


Good


No yield reduction! to date. Controls oxalis,
chickweed.

No yield reduction to date. Controls ocalis.
Does not control chickweed.

No yield reduction to date. Does not control
oxalis.

No yield reduction to date.

May increase yield.


No yield reduction to date.


Iay increase yield.


igzran even at this low rate can buz-n fern
under soinq conditions. No yield reduction.
R
Igran can burn fern. Controlled crabgrass.
No yield reduction to date.
R
Igran can burn fern at relatively low rates.
No yield reduction to date.

Controls grasses. No yield reduction to date.


Controls oxalis.









Plot Commercial Product(s),
'bcr(s) Formulation(s), Rate(s)/Acre

19 ScottsR OHIa, 4G, 25 lbs. + Bolero
8E, 1/4 gal.

20 ScottsR OHIa, 4G, 50 Ibs. + Surflan R
75WP, 2 lbs.

21 ScottsR OHIa, 4G, 50 lbs. + SurflanR,
75WP, 4 lbs.

23 ScottsR OHIa, 4G, 50 lbs. + IgranR,
80W, 2/3 lb.

24 ScottsR OHIa, 4G, 50 lbs. + LassoR
15G, 10 lbs. or 4EC, 0.4 gal.

27 ScottsR OHIa, 4G, 37.5 Ibs. + LassoR,
15G, 10 lbs. or 4EC, 0.4 gal.

28 Princep 4G 37.5 lbs. or 80W, 1.9
lbs. + Lasso 15G, 10 lbs. or 4EC,
0.4 gal.

30 PrincepR, 4G, 37.5 lbs. or 80W, 1.9
Ibs. + SurflanR, 75WP, 2.7 lbs.
R
32 Princep 4G, 37.5 lbs. or 80W, 1.9
lbs. + DevrinolR, 50W, 8 lbs.

33 ScottsR OHIa, 4G, 50 lbs. +
DevrinolR, 50W, 8 lbs.

37 Sancap 80W, 1.25 lbs.
a-or twice as much ChcoR Ronsta G
a-or twice as much Chipco Ronstar G


Weed
Suppression

Good


Very Good


Very Good


Good


Very Good


Very Good


Good


Very


Very


Very


Very


Good


Good


Good


Good


Comments

No yield reduction to date. Does not
control chickweed.

No yield reduction. Broad spectrum
suppression.

Some phytotoxicity and possible yield
reduction.

Phytotoxic. Reduced Yield.


No yield reduction to date. Broad
spectrum suppression.

No yield reduction to date. Broad
spectrum suppression.

No yield reduction to date. Some
phytotoxicity.


No yield reduction to date. Very
promising.

No yield reduction to date.


No yield reduction to date.


No yield reduction to date.








Plot
Numbers)


RydexTM, 50W, 2 lbs.


Commercial Product(s) -
Formulation(s), Rate(s)/Acre

DevrinolR, SOW, 4 lbs.

DevrinolR, 50W, 8 Ibs.

ScottsR OHIa, 4G, 37.5 Ibs. + PrincepR
4G, 25 lbs. + LassoR, 15G, 6.7 lbs.

ScottsR OHIa, 4G, 50 lbs. + DualR
15G, 13.3 Ibs.
R
Sancap 80W, 2.5 lbs.

Rydex 50W, 1 lb.


Comments


Weed
Suppression

Very Good

Very Good

Very Good


Very Good


Very Good

Very Good


Very Good


No yield reduction to date. Promising
but unavailable commercially.

No yield reduction to date. Promising-
but available for experimental use only.


NOTE: These observations are preliminary.
leatherleaf fern. Experiments have
of certain preemergence herbicides.
fern beds is to maintain vigorously



a-or twice as much ChipcoR Ronstar G


No herbicides are presently registered for use on
been started to obtain data necessary for registration
The best.method of controlling weeds in leatherleaf
growing fern (biological suppression).


No yield reduction to date.

No yield reduction to date.

No yield reduction to date.
Broad spectrum.

No yield reduction to date.
Broad spectrum.

No yield reduction to date.




University of Florida Home Page
© 2004 - 2010 University of Florida George A. Smathers Libraries.
All rights reserved.

Acceptable Use, Copyright, and Disclaimer Statement
Last updated October 10, 2010 - - mvs