Group Title: ARC-A mimeo report - Agricultural Research Center-Apopka ; RH-72-2
Title: Herbicides and the foliage industry
Full Citation
Permanent Link:
 Material Information
Title: Herbicides and the foliage industry
Series Title: Mimeo report - ARC-A
Physical Description: 5 leaves : ; 28 cm.
Language: English
Creator: Poole, R. T ( Richard Turk )
Conover, Charles Albert, 1934-
Waters, W. E ( Will E )
Agricultural Research Center (Apopka, Fla.)
Publisher: University of Florida, IFAS, Agricultural Research Center
Place of Publication: Apopka Fla
Publication Date: 1972
Subject: Foliage plants -- Growth -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
Statement of Responsibility: by R.T. Poole, C.A. Conover and W.E. Waters.
General Note: Caption title.
 Record Information
Bibliographic ID: UF00066001
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 71194288

Full Text


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

site maintained by the Florida
Cooperative Extension Service.

Copyright 2005, Board of Trustees, University
of Florida

II. Non Crop Areas

R. T. Poole, C. A. Conover and W. E. Waters
Agricultural Research Center Apopka
Mimeo Report ARC-A 1972-2

Herbicides discussed in this paper at the rates sugge ed will cause

soils to be unproductive for approximately a year or longer. HowOg,27 1976

there are many areas throughout the foliage industry where the use of
i.F.A.S. Univ. of Florida
these chemicals will be beneficial. F.A.S. v.ofFlorida

Weeds in the aisles, along edges of growing structures and along

fence rows are unnecessary and detrimental. The immediate effect is an

appearance of uncleanliness, which indicates to many buyers that the same

neglect occurs in foliage plant culture. In addition, weeds mar the

aesthetic beauty of the property and influence the regard employees

exercise in their treatment of plants.

Weeds also cost money, and removal of weeds in the stock beds,

propagation benches and in potted plants are expensive. Weeds outside

the immediate growing area can also be expensive and dangerous as they

can impair visibility of traffic, signs and rubbish which provides cover

for pests.

Weeds harbor insects and diseases and their elimination around

growing areas will reduce problems of insect and disease pests. Weeds

also damage building structures, they crack concrete and pierce asphalt

and also present a fire hazard.

During the last two years two experiments were established at the

Agricultural Research Center Apopka to test the durability and select-

ivity of several herbicides. Materials selected for tests are listed in

Table 1.

The first experiment was initiated April 22, 1970. Materials were

applied along chain link fences north and south of the Center. Percent

weed control and weed species present were determined July 1, August 3,

November 30, 1970 and April 1, 1971. The second experiment was initiated

March 15, 1971 along the fence bordering the western edge of the Center.

Evaluations were made April 15, June 15, September 15 and December 15,

1971. One half of the fence row south of the entrance in Exp. 2 was

surrounded by Argentine Bahia, the half north of the entrance way was not

cultivated and had many perennial field weeds growing within the treated

area. Percent weed control of Exp. 1 is given in Table 2. All herbicides

except Princep at 10 pounds active ingredient per acre (ai/A) gave satis-

factory results, although GS-14254 and Bromacil were apparently longer

lasting than the others. Bahia was the most frequent intruder of treated

plots, entering by means of runners from the adjacent lawn. Pramitol.,

GS-14254 and Bromacil were the most successful chemicals to prevent

entrance of Bahia. Richardia scabra (Florida Purslane) and Chenopedium

ambrosides (Jerusalem Oak) were next in importance. Princep, Telvar,

GS 14254 and Bromacil were most successful in controlling Florida purslane.

Pramitol and Telvar controlled Jerusalem Oak.

Herbicides which gave the best weed control in Bahia lawn in Exp. 2

were Tandex, Pramitol and GS 14254 (Table 3). Similar results were obtained

along the fence in the field with the addition of Bromacil as a satisfactory

herbicide (Table 4). Florida purslane was usually the first annual to

appear in all plots.


Of the herbicides tested and currently on the market Tandex and Pramitol

at the rates used appear to be the most satisfactory. Bromacil has long

lasting effects, but should be used with caution as it has been known to

kill trees whose roots enter into the zone of application. Fumes from

these herbicides may be toxic when used in an enclosed structure. However,

when used in well ventilated areas, there is little possibility of damage

to foliage plants. The use of these herbicides will improve the appearance

and efficiency of the foliage nursery. These herbicides should not be

applied to soil that may be used for growing foliage plants.




Table 1. Herbicides tested for durability and non selectivity.

Herbicide Formulation ai/A Lbs Mat/A Mat/1000 ft

Tandex 80 WP 10 12.5 4.6 oz

Princep1 80 WP 10 12.5 4.6 oz

Atratol 8 P 10 125 3 lbs

Pramitol 5 PS 40 800 18.4 Ibs

Karmex1 80 WP 10 12.5 4.6 oz

Sinbar 80 WP 10 12.5 4.6 oz

Telvar 80 WP 10 12.5 4.6 oz

GS 14254 5 P 40 800 13.4 Ibs

Bromacil 80 WP 10 12.5 4.6 oz

1Paraquat added (1 quart/100 gal).

Table 2. Percent weed control. Herbicides applied April 22,

Herbicide ai/A Jul 1,70 Aug 3,70 Nov 30,70 Apr 1,71

Tandex 10 93 98 80 65

Princep1 10 86 70 38 12

Atratol 10 81 71 60 60

Pramitol 40 98 98 68 66

Karmex1 10 88 89 58 56

Sinbar 10 97 94 63 66

Telvar1 10 96 91 78 61

GS-14254 40 98 99 85 85

Bromacil 10 95 99 76 79

1Paraquat added.(1 quart/100 gal).

Table 3. Percent weed control in Bahia

lawn. Herbicides applied March 15,

Herbicides ai/A Apr. 15 June 15 Sept. 15 Dec. 15

Tandex 10 42 98 94 85

Atratol 20 32 58 45 55

Pramitol 44 65 98 98 87

Karmex + MSMA1 7+1 30 40 50 60

Sinbar 10 50 94 62 50

Telvar 10 45 28 12 15

Bromacil 10 40 95 75 65

GS 14254 44 70 96 95 92

IParaquat added (i quart/100 gal).

Table 4. Percent weed control along fence in non-cultivated field.
Herbicides applied March 15, 1971.

Herbicide ai/A Apr. 15 June 15 Sept. 15 Dec. 15

Tandex 10 75 98 82 80

Atratol 20 50 85 40 35

Pramitol 44 78 96 94 87

Karmex + MSMA1 7+1 40 62 70 72

Sinbar 10 70 85 80 55

Telvar 10 35 32 70 68

Bromacil 10 68 90 85 80

GS 14254 44 60 80 92 85

Iparaquat added (1 quart/100 gal).

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