• TABLE OF CONTENTS
HIDE
 Historic note
 Front Cover
 Table of Contents
 Main














Group Title: Circular - University of Florida. Florida Cooperative Extension Service ; 196-H
Title: Weed control guide for commercial vegetable production in Florida
CITATION THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00072517/00001
 Material Information
Title: Weed control guide for commercial vegetable production in Florida vegetable herbicide tables
Series Title: Circular
Physical Description: 7, 1 p. : ill. ; 28 cm.
Language: English
Creator: Stall, W. M ( William Martin ), 1944-
Florida Cooperative Extension Service
Publisher: Florida Cooperative Extension Service
Place of Publication: Gainesville Fla
Publication Date: 1983?
 Subjects
Subject: Vegetables -- Weed control -- Florida   ( lcsh )
Herbicides -- Tables   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: William M. Stall.
General Note: Cover title.
General Note: "The tables and illustrations in this publication are courtesy of Florida grower and rancher, and were published in vol. 76, no. 7, July, 1983"--P. 2.
General Note: "10-3.3M-83"--P. 8.
Funding: Circular (Florida Cooperative Extension Service) ;
 Record Information
Bibliographic ID: UF00072517
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 20607958

Table of Contents
    Historic note
        Historic note
    Front Cover
        Page 1
    Table of Contents
        Page 2
    Main
        Page 3
        Page 4
        Page 5
        Page 6
        Page 7
        Page 8
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




c'

Circular 196-H


WEED CONTROL GUIDE
FOR COMMERCIAL VEGETABLE

PRODUCTION IN FLORIDA

VEGETABLE HERBICIDE TABLES


WilliaroM..Stalt-------
HUME LIBRARY
I3EB 2?7 13384

.F.A.S.- Univ. of Florida


Florida Cooperative Extension Service
Institute of Food and Agricultural Sciences
University of Florida, Gainesville
John T. Woeste, Dean for Extension








Table of Contents
Beans and Peas .................. .......................................... .3
Carrot and Parsley.........................................................3
Celery .................................................................4
Cole or Crucifer Crops.....................................................4
Cucurbit Crops ..........................................................4
Lettuce, Endive, Escarole and Spinach ........................................4
Okra ..................................................................5
Onion .................... ....... ....... ............................5
Potatoes ....... ........................................ ................5
Potato Vine Dessicants .............................................. ...... 6
Strawberries .............................................................6
Sweet Corn .............................................................6
Sweet Potato............................... ..... ........................ .7
Tomatoes, Peppers and Eggplant (Bed Culture Without Mulch) ......................7
Tomatoes, Peppers and Eggplant (Full Bed Plastic Mulch) .........................7



The tables and illustrations in this publication are courtesy of Florida Grower and Rancher, and were published in Vol. 76, No. 7, July, 1983.
































*William M. Stall is an Associate Professor and Extension Vegetable Crops Specialist, Vegetable Crops Department, IFAS,
University of Florida, Gainesville.


2










VEGETABLE HERBICIDE TABLES


Herbicides must be applied at exactly the correct rate and time to selectively control weed growth in a
vegetable crop. Obtain consistent results by reading the herbicide label and other information about the
proper application and timing of each herbicide. To avoid confusion between commercial formulations,
suggested rates listed in this guide are stated as pounds active ingredient per acre (lbs. ai./acre) unless other-
wise indicated. Apply lower rates for sandy and rockland soils with low organic matter and clay contents.
Not all labeled herbicides are suggested due to either a lack of Florida data, or due to data indicating a de-
gree of crop injury when applied under Florida conditions. When limited data is available the materials are
suggested for use on a trial basis. Read each herbicide label for specific weeds controlled.


BEANS & PEAS
Bush, pole & lima beans;
English peas & Southern peas
Time of Rate (Ibs. ai./acre)
Labelled application Mineral Muck
Herbicide crops to crop
CDAA Bush, pole and Preemergence 4.0
(Randox) limabeans
Controls germinating annuals, especially grasses. Apply to moist soil.
Chloramben Lima beans Preplant incor- 2.0
(Amiben) Dry beans porated or pre- to
emergence 3.0
Controls germinating annuals. Incorporate 2 to 4 inches or overhead
irrigate. Use on trial basis.
Dinoseb Bush, pole and Before crop 3.0 6.0
(Several lima beans and emerges or in
products) English peas early "crook"
stage
Controls small emerged annuals and some perennial weeds.
Apply to moist soil just prior to crop emergence.
DCPA Bush, pole and Preemergence 8.0
(Dacthal) lima beans and to
southern peas 10.5
Controls germinating annuals. Incorporate I to 2 inches or overhead
irrigate. Note label precautions of replanting unregistered crops within
8 months.
-------------------......... ------------------------------------------------------------------------------------------.
EPTC Bush and pole Preplant incor- 3.0
(Eptam) beans including porated or at to
Romano types layby 4.0
Controls germinating annuals and suppresses nutsedge and other
perennial weeds. Incorporate in same operation to reduce evapora-
tion loss. Direct layby applications between rows and incorporate.
Trifluralin Bush, pole and Preplant incor- 0.5
(Treflan) lima beans; porated to
English peas 0.75
Controls germinating annuals, especially grasses. Incorporate 4
inches or less within 8 hours. Results in Florida are erratic on soils
with low organic matter and clay contents. Note label precautions of
planting non-registered crops.

Profluralin Bush, pole and Preplant incor- 0.5
(Tolban) lima beans and porated to
southern beans 0.75
Controls germinating annuals, especially grasses. Incorporate 4 to 6
inches within 4 hours. Note label precautions of planting non-
registered crops.


Dinitramine English peas Preplant incor- 0.3
(Cobex) porated to
0.5
Controls germinating annual. Incorporate 1.5 to 2.0 inches within 24
hours. Use on trial basis.
Bentazon Lima beans Early post 0.75
(Basagran) Snap beans emergence to
1.0
Controls small emerged broadleaf weeds. Apply when I to 2
trifoliate bean leaves have expanded. Use on a trial basis. Leaf burn
has been seen with use in Florida.
------------------.. -.-. ----------------------------------------.-. ------------------------------------. ---. -------...
Glyphosate Beans (all) Prior to crop 1.0 1.0
(Roundup) Peas (all) emergence to to
2.0 2.0
Controls rapidly growing emerged weeds. Apply in specific cropping
systems. Adjust rates depending on weeds to be controlled. Note
label restrictions of replanting non-registered crops within 12 months.
Use on trial basis.
Metolachlor Bush, pole, Preplant incor- 0.75
(Dual) lima beans, porated or pre- to
Southern peas emergence 1.0
and English
peas
Controls many annual grasses and some broadleaf weeds. See label
for specific tankmix combinations. Use on trial basis.


CARROT & PARSLEY


Herbicide
Linuron
(Lorox)


Labelled
crops
Carrots


Time of
application
to crop
Preemergence
between rows


Rate (Ibs. ai./acre).
Mineral Muck


0.5 0.5
to to


1.5 1.5
A special Local Needs 24(c) Label for Florida only. Controls ger-
minating annuals. Use row shields and apply premergence treatment
only between carrot rows. Plant carrot seed at least 0.5 inch deep.
Do not exceed a total of 2 Ibs. ai./acre for a single crop season.
Note precautions of planting non-registered crops within 4 months.

Postemergence 0.25 0.25
to to
1.0 1.0
Controls emerged annuals. Multiple applications are possible if a
total of 2 lbs. ai/acre are not exceeded for a single crop season. Use
lower rates for young carrots. Apply after carrots are 3 inches tall or
4 true leaves and before annual grasses are 2 inches and broadleaf
weeds are 6 inches tall. Do not use a surfactant.
Mineral spirits Carrots and Postemergence 40 to 40 to
or Stoddard's parsley 60 gal. 60 gal.
solvent
Controls small emerged annuals. Apply at 3 leaf stage once or twice,
but not within 60 days of harvest.











CARROT (Continued)


Glyphosate Carrot
(Roundup)


Preemergence


1.0 1.0
to to


2.0
Apply as directed for "Cropping Systems" under conditions
described on label. Does not provide residual weed control. Use on
trial basis.


Glyphosate (Broccoli, Prior to crop 1.0
(Roundup) cabbage, emergence or pre- to
cauliflower, transplanting 2.0
mustard, kale)
Apply as directed for "Cropping Systems" under conditions
described on label. Does not provide residual weed control.


2.0


CELERY


Time of Rate (Ibs. ai./acre)
Labelled application Mineral Muck
Herbicide crops to crop
CDAA Celery Posttransplanting 4.0 4.0
(Randox)
Controls germinating grasses. Apply within 3 days after transplanting
and overhead irrigate. Apply second time within 3 weeks if
necessary. (Florida label).
................. 2 n e !Xy / .Jtl .!. ----------------------------------------............... ................. ...

Linuron Celery Posttransplanting 0.5 0.5
(Lorox) to
1.0 1.0
Controls emerged annuals. Apply following transplanting and
establishment of celery, but before crop is 8 inches tall. Annual
grasses should not exceed 2 inches and broadleaf weeds 6 inches tall.
Avoid application when temperature exceeds 85F. Do not use a sur-
factant or mix with other chemicals. Note precautions of planting
non-registered crops within 4 months.
Prometryn Celery seedbed Postemergence 0.6 0.6
(Caparol) to to
0.8 0.8
Controls emerged annuals. In seedbed, apply when seedlings have 2
to 5 true leaves after seedbed covers are removed for at least one
week.


Prometryn Celery field
(Caparol)


Posttransplanting 0.8
to


1.6 1.6
Controls emerged annuals. Apply one time after celery is established,
but before 6th week. Weeds should not exceed 2 inches. Note precau-
tions of planting non-registered or sensitive crops within 5 months.
Mineral spirits Celery Posttransplanting 25 to 25 to
or Stoddard's 40 gal. 40 gal.
solvent
Controls small emerged annuals. Apply as a directed spray at base of
transplants. Treat within one month after transplanting.


COLE OR CRUCIFER CROPS
Broccoli, Cabbage, Cauliflower
Collards, Mustard, Turnips, Kale


CUCURBIT CROPS
Cantaloupes, Cucumbers, Squash, Watermelon

Time of Rate (Ibs. ai./acre
Labelled application Mineral Muck
Herbicide crops to crop


Bensulide All listed Preplant incor- 5.0
(Prefar) cucurbits porated
Controls germinating grasses. Incorporate I to 2 inches. Note precau-
tions of reapplying within 12 months and planting non-registered
crops within 18 months.
Naptalam Cantaloupes, Preemergence or 3.0
(Alanap) cucumbers and postemergence to
watermelons 4.0
Controls germinating annuals. Apply preemergence to weeds and in-
corporated with overhead irrigation.
Bensulide + Cantaloupes, Preplant or 5.0
naptalam cucumbers and preemergence +
watermelon 3.0
to
4.0
Controls germinating annuals. Incorporate with overhead irrigation.
Note remarks for each herbicide above.
Chloramben Squash and Preemergence 3.0
(Amiben) pumpkins
Controls germinating annuals. Incorporate 2 to 4 inches or overhead
irrigate.
Paraquat Melons Preemergence 0.5
to
1.0
Controls emerged weeds only. Apply prior, during or after planting,
but before crop emerges. Use a non-ionic spreader.


Time of Rate (Ibs. ai./acre)
application Mineral Muck
to crop


CDAA Cabbage Preemergence or 4.0 4.0
(Randox) posttransplanting
Controls germinating annuals, especially grasses. Apply to moist soil
immediately after planting.
DCPA All listed Preemergence or 8.0
(Dacthal) crucifers posttransplanting to
10.5
Controls germinating annuals. Apply immediately after planting and
irrigate or incorporate 1 to 2 inches. Note precautions of replanting
non-registered crops within 8 months.
Trifluralin All listed Preplant incor- 0.5
(Treflan) crucifers porated to
0.75
Controls germinating annuals, especially grasses. Incorporate 4
inches or less within 8 hours. Results in Florida are erratic on soils
with low organic matter and clay contents. Note precautions of
planting non-registered crops within 5 months.


LETTUCE, ENDIVE, ESCAROLE & SPINACH


Herbicide


Labelled
crops


Time of Rate (Ibs. al./acre)
application Mineral Muck
to crop


Pronamide Lettuce, endive Preemergence 1.0
(Kerb) and escarole to
1.5
Controls germinating annuals. Overhead irrigate briefly or incor-
porate 2 to 3 inches. Note precautions of planting non-registered or
sensitive crops after application.


Herbicide


Labelled
crops


---











Paraquat Lettuce


Preemergence


0.5 0.5
to to


1.0
Controls emerged weeds. Apply prior, during or after direct seeding,
but before lettuce emerges. Use a non-ionic spreader.


1.0


Postemergence as 0.4 0.4
a directed/shielded to to
spray 0.5 0.5
A Special Local Needs 24(c) Label for Florida Only. Controls
emerged weeds. Apply as a directed/shielded spray between rows
when weeds are 1 to 6 inches tall. Use a non-ionic spreader.

Benefin Lettuce Preplant incor- 0.75
(Balan) porated
Controls germinatng annuals. Incorporate 2 to 3 inches within 8
hours.
Glyphosate Lettuce Prior to crop 1.0 1.0
(Roundup) Spinach emergence or to to
pretransplanting 2.0 2.0
Apply as directed for "Cropping Systems" under conditions
described on label. Does not provide residual weed control.


DCPA Onions Preemergence, 6.0
(Dacthal) posttransplanting to
or at layby 10.5
Controls germinating annuals. Incorporate 0.5 to 1 inch with
overhead irrigation or shallow cultivation. Apply layby treatment to
weed-free field up to 14 weeks after planting at rates not exceeding
10.5 lbs. ai./acre per season. In Hastings area, onions may be in-
jured with single applications exceeding 6.0 lbs ai./acre. Note precau-
tions of planting non-registered crops within 8 months.
Glyphosate Onions Prior to crop 1.0 1.0
(Roundup) emergence or to to
pretransplanting 2.0 2.0
Apply as directed for "Cropping Systems" under conditions
described on label. Does not provide residual weed control.


OKRA


Herbicide


Labelled
crops


Time of
application
to crop


Rate (Ibs. ai./acre)
Mineral Muck


Trifluralin Okra Preplant incor- 0.5
(Treflan) porated to
1.05
Controls germinating annuals, especially grasses. Incorporate 4
inches or less within 8 hours. Results in Florida are erratic on soils
with low organic matter and clay contents. Note precautions of
planting non-registered crops within 5 months.
Profluralin Okra Preplant incor- 0.5
(Tolban) porated to
0.75
Controls germinating annuals, especially grasses. Incorporate 4 to 6
inches within 4 hours. Note label precautions of planting non-
registered crops.


Diphenamid Okra
(Enide)


Preemergence


Controls germinating annuals, especially grasses. Incorporate 4 to 6
inches within 4 hours. Note label precautions of planting non-
registered crops.
Glyphosate Okra Prior to crop 1.0 1.0
(Roundup) emergence or to to
pretransplanting 2.0 2.0
Apply as directed for "Cropping Systems" under conditions
described on label. Does not provide residual weed control.





ONION
Bulb and green bunching


Herbicide


Labelled
crops


Time of
application
to crop


Rate (Ibs. ai./acre)
Mineral Muck


CDAA Bulb onions Preemergence or 4.0
(Randox) posttransplanting
Controls germinating annuals. Apply just prior to onion emergence
or soon after transplanting. Apply a second application as a directed
spray after 3 true leaf stage. Do not apply within 45 days of harvest.
Chlorpropham Onions Preemergence, 3.0 6.0
(Furloe) postemergence or to to
posttransplanting 4.0 8.0
Controls germinating annuals. Not labelled for onions grown on
sandy soils. On other soil types, apply preemergence at early "loop"
stage, but not "flat" stage. Apply post-emergence or posttrans-
planting as a directed spray to base of onion after 3 true leaf stage.


POTATOES

Time of Rate (Ibs. ai./acre)
Labelled application Mineral Muck
Herbicide crops to crop
Paraquat Potatoes Preemergence 0.25
to
0.5
Controls emerged weed seedlings. Apply after planting, but before
potatoes emerge. Use a non-ionic spreader.
Alachlor White-skinned Preemergence 2.0
(Lasso) potatoes
Controls germinating annuals. May delay maturity and/or reduce
... yields of some varieties under cold, wet conditions.
Dinoseb Potatoes Preemergence 3.0 3.0


(Several


to to


brands) 6.0 6.0
Controls small emerged annuals. Apply at least I day before crop
........ emerges.
Metribuzin
(Lexone or
Sencor)
Controls germinating annuals, especially broadleaf weeds. Apply to
moist soil after planting. Note label precautions of planting non-
registered or sensitive crops within 4 to 18 months.

DCPA Potatoes Preemergence or 6.0
(Dacthal) early layby to
8.0
Controls germinating annuals. Apply to moist soil. Note label
precautions of replanting non-registered crops within 8 months.


Diphenamid Potatoes
(Enide)


Preemergence or
early layby


6.0
Controls germinating annuals. Apply to moist soil. Shallow cultiva-
tion will not reduce herbicide efficacy, but hilling or rebedding may
reduce weed control. Note label precautions of planting non-
registered crop within 6 months.
EPTC Potatoes Postemergence 3.0
(Eptam) at early layby
Controls germinating annuals and suppresses nutsedge. Apply to
both sides of the row and incorporate by covering with soil after first
true leaves have enlarged.
--------- ----............. ..... .... .... .... ... .... .... .... .... ... .... .... .... .... ... .... .... .... ...












POTATOES (Continued)


SWEET CORN


Pendimethalin Potatoes Preemergence 0.75
(Prowl)
Controls germinating annual grasses and broadleaf weeds. Should be
shallow incorporated or watered to a depth of 2 to 4 inches within 7
days. See label for tank mixes. Use on trial basis.
Metolachlor Potatoes Preemergence 1.5
(Dual) 2.0
Controls germinating annual grasses and certain broadleaf weeds.
May be tank mixed with other preemergence herbicides. Under pro-
longed cool, wet conditions, minor foliage injury has been seen. Use
on trial basis.


POTATO VINE DESSICANTS


Herbicide


Labelled
crops


Time of Rate (Ibs. ai./acre)
application Mineral Muck
to crop


Ametryn Potato vines Before harvest 1.0 1.0
(Evik) and weeds to to
2.0 2.0
Apply 10 to 14 days before harvest in a minimum of 100 gal, of
water to assure thorough wetting of foliage. Sensitive or non-
registered crops may be injured if planted within 12 months.
Dinoseb Potato vines Before harvest 1.5 1.5
(Several and weeds to to
brands) 2.0 2.0
Apply 10 to 20 days before harvest during bright, sunny weather.
Mix non-ionic emulsifier or spreader with 5 gal. fuel oil in 30 gal.
water and add dinoseb according to instructions on label.
Paraquat Potato vines Before harvest 0.25
and weeds to
0.5
Apply one 10 to 21 days before harvest or split higher rate when vine
growth is dense and apply twice. Do not apply within 3 days of
harvest, nor more than twice with 5 days between application. Apply
in 50 to 100 gal. of water with a non-ionic spreader to assure
thorough wetting. Do not apply on muck or peat soils to avoid injur-
ing subsequent crop.
Diquat Potato vines Before harvest .25
and weeds
Apply a minimum of 7 days before harvest. Use 2 applications if
necessary with a minimum of 5 days between applications. Use non-
ionic spreader to assure wetting. Do not apply to drought stressed
potato plants.


STRAWBERRIES


Time of Rate (Ibs. ai./acre)
Labelled application Mineral Muck
Herbicide crops to crop
DCPA Strawberries Posttransplanting 9.0
(Dacthal)
--------------------------------------.-----------.-------------------------------------------
Diphenamid Established Posttransplanting 4.0
(Enide) strawberry
plants
Controls germinating annuals. Apply 2 to 6 weeks after transplanting
when new leaves have begun to grow. Note precautions of planting
non-registered crops within 6 months.
Napropamaide Strawberries Posttransplant and 2.0
(Devrinol) established plants to
4.0
Controls annual grasses and annual broadleaf weeds. Water in to a
depth of 2 to 4 inches. Does not control established weeds. Do not
apply from bloom to harvest.


Time of Rate (Ibs. ai./acre)
Labelled application Mineral Muck
Herbicide crops to crop


Glyphosate Sweet corn Prior to crop 1.0
(Roundup) emergence or to
pretransplanting 2.0
Apply as directed for "Cropping Systems" under conditions
described on label. Does not provide residual weed control.
Paraquat Sweet corn Preemergence 0.5


1.0


0.5


to to
1.0 1.0
Controls emerged weeds. Apply prior, during, or after planting, but
before corn emerges. Use a non-ionic spreader.
Alachlor Sweet corn Preemergence or 1.5 4.0
(Lasso) preplant incor- to
porate 2.0

Controls germinating annuals, especially grasses. Apply to moist soil.
CDAA Sweet corn Preemergence 5.0
(Randox)
Controls germinating annuals, especially grasses. Apply to moist soil.

Propachlor Sweet corn Preemergence 4.0 4.0
(Ramrod or to to
Bexton) 5.0 5.0
Controls germinating annuals. Incorporate 2 inches with overhead ir-
rigation or shallow cultivation.
Dinoseb Sweet corn Preemergence or 3.0
(Several early post- to
products) emergence 7.5
Controls germinating annuals. Use higher rates preemergence and
lower rates as early postemergence before 2 leaf stage. Apply to
moist soil during clear, but not excessively hot weather for maximum
weed control with minimum crop injury.
Atrazine Sweet corn Preemergence 1.0 2.0
(Several to to
products) 2.0 3.0
Controls germinating annuals. Apply to moist soil. Note label
precautions of planting non-registered or sensitive crops for at least
one growing season.

Postemergence 1.0 1.0
to to
2.8 2.8
Controls emerged weeds. Apply in a minimum of 10 gal, of water
before weeds are 1.5 inches tall. Use lower rates when weeds are
small. Not replanting precautions listed above.

Atrazine + Sweet corn Postemergence 1.0 1.0
Oil to to
2.0 2.0
+ +
oil oil
Controls emerged weeds. Apply to small test plots to evaluate
tolerance of new hybrid corn varieties. Following mixing instructions
listed on the label and rates of emulsifiable oil or oil concentrate
depending on ground or aerial application methods. Apply before
annual grasses are 1.5 inches and broadleaf weeds are 4 inches. Note
replanting precautions. Do not apply to breeding stock or inbred
----- line- s of sweet corn.

Simazine Sweet corn Premergence 2.0
(Several
products)
Controls germinating annuals. Apply to moist soil. Note label
precautions of planting non-registered or sensitive crops for at least
one growing season.











Ametryn Sweet corn Postemergence 1.0
(Evik) directed spray to
2.0
Controls emerged weeds. Apply when corn is at least 12 inches tall
and weeds 2 to 6 inches. Use row shields or leaf lifters and add a
surfactant to insure complete wetting of weed foliage. Note label
precautions of planting non-registered or sensitive crops for at least
one season.


Linuron
(Lorox)


Sweet corn Postemergence 0.75 0.75
directed spray to to


1.5 1.5
Controls emerged weeds. Apply when corn is at least 15 inches tall
and weeds 2 to 5 inches. Direct spray between rows avoiding contact
with corn leaves. Thoroughly wet weed foliage. Note label precau-
tions of replanting non-registered crops for 4 months.
Bentazon Sweet corn Early post- 0.75 0.75
(Basagran) emergence to to
1.0 1.0
Controls actively growing emerged broadleaf weeds. Apply when
weeds are 2 to 6 inches tall.
2,4.D amine Sweet corn Postemergence 0.3 0.3
salt to to
(Several 0.75 0.75
products)
Controls emerged broadleaf weeds. Apply as directed with drop
nozzles. Avoid application when corn is growing rapidly under hot,
wet conditions or during tasseling or ear formulation. Avoid drift
and use a separate sprayer for 2,4-D applications. Some sweet corn
varieties are susceptible to 2,4-D.




SWEET POTATO

Time of Rate (Ibs. ai./acre)
Labelled application Mineral Muck
Herbicide crops to crop
Chloramben Sweet potato Pre- or post- 4.0


(Amiben)


transplanting
Controls germinating annuals. Apply to moist soil or overhead
irrigate.


DCPA Sweet potato Posttransplanting 8.0
(Dacthal) or layby to
10.5
Controls germinating annuals. Apply to moist soil or overhead ir-
rigate. Apply to weed-free field up to 6 weeks after transplanting.
Note label precautions of replanting non-registered crops within 8
months.

Diphenamid Sweet potato Posttransplanting 4.0
(Enide)
Controls germinating annuals. Apply to moist soil or overhead
irrigate. Note label precautions of replanting non-registered crops
within 6 months.





TOMATOES, PEPPERS & EGGPLANT
Bed Culture Without Mulch

Time of Rate (Ibs. ai./acre)
Labelled application Mineral Muck
Herbicide crops to crop
Paraquat Tomatoes and Preemergence or 0.5
peppers pretransplanting to
1.0
Controls emerged weeds. Use a non-ionic spreader and thoroughly
wet weed foliage.


Diphenamid Tomatoes and Preemergence or
(Enide) peppers posttransplating


Controls germinating annuals. Apply to moist soil I week before or
within 4 weeks after transplanting crops. For tomato, incorporate
higher rate .05 to 2 inches. Note label precautions of replanting non-
registered crops within 6 months.
.........................................................................................................................


Napropamide Tomatoes and Preplant 1.0
(Devrinol) peppers (direct incorporated to
seeded & trans- 2.0
planted)
Eggplant
(transplanted)
Apply to well worked soil that is dry enough to permit thorough in-
corporation to a depth of 1-2 inches. Incorporate same day as
applied.

Tomato and Surface treatment 2.0
pepper
A special Local Needs 24(c) Label for Florida only. Apply as a sur-
face application to bed tops after bedding and after seeding or
transplanting. Rainfall and/or overhead irrigation sufficient to wet
soil I inch depth should follow treatment within 24 hours.

DCPA Established Posttransplanting 6.0
(Dacthal) tomatoes, after establishment to
peppers and 8.0
eggplant
Controls germinating annuals. Apply to weed-free soil 4 to 6 weeks
after transplanting when crop is established and growing rapidly.
Note label precautions of replanting non-registered crops within 8
months.

Trifluralin Tomatoes Pretransplant 0.75
(Treflan) (except Dade incorporated to
County) and 1.0
pepper
transplants
Controls germinating annuals, especially grasses. Incorporate 4
inches or less within 8 hours. Results in Florida are erratic on soils
with low organic matter and clay contents. Note label precautions of
planting non-registered crops within 5 months.

Pebulate Tomatoes Pre- or -post- 4.0
(Tillam) transplant
incorporated
Controls germinating annuals and suppresses nutsedge. Incorporate 2
to 3 inches immediately, either before transplanting or in weed-free
row middles.

Metribuzin Tomatoes Pretransplant 0.25
(Sencor only) incorporated to
0.5
Use on a trial basis to control germinating weeds. Incorporate 2 to 4
inches. May be tank mixed with trifluralin.
............................................... ........... .. .. .. .. ... .. .. .. .. ... .. .. .. .. ... .. .. .. ..---------------
Metribuzin Tomatoes Postemergence 0.25
(Sencor, posttransplanting to
Lexone) after establishment 0.5
Controls small emerged weeds after tomato transplants begin to
grow. Apply in single or multiple applications with a minimum of 14
days between treatments & a maximum of 1.0 lb. ai./acre within a
crop season. Avoid application for 3 days following cool, wet or
cloudy weather to reduce possible crop injury.

Postemergence or 0.5
posttransplant as to
directed spray 1.0
Use on a trial basis to control persistent weeds in tomato field after 5
to 6 true leaf stage or transplants begin to grow. Note all other
precautions listed above.


TOMATOES, PEPPERS & EGGPLANT
Full-Bed Plastic Mulch


Herbicide


Labelled
crops


Time of
application
to crop


DCPA Established Postplanting row 6.0
(Dacthal) tomatoes, middles after crop to
peppers and establishment 8.0
eggplant
Controls germinating annuals. Apply to moist soil in row middles
after crop establishment. Note label precautions of replanting non-
registered crops within 8 months.


Rate (Ibs. ai./acre)
Mineral Muck











TOMATOES, PEPPERS & EGGPLANT Full Bed Plastic Mulch (Continued)


Diphenamid Tomatoes and Pretransplant
(Enide) pepper incorporated


Controls germinating annuals. Apply as a directed band over plant
holes after "plug" planting. Apply to moist soil in row middles soon
after mulch is secured. Use lower rate for peppers. Note label
precautions of replanting non-registered crops within 6 months.

Napropamide Tomatoes and Preplant incor- 1.0
(Devrinol) peppers porate or surface to
application 2.0
Surface applica-
tion to row mid-
dles between
plastic beds 2.0
Controls germinating annuals. Apply to bed tops after bedding but
before plastic application. Applications between beds should be ir-
rigated. Surface applications are Special Needs 24(c) Labels for
Florida only.


Chloramben Tomatoes and Preplant to bed 3.0
(Amiben) peppers shoulders or post-
planting in row
middles
A Special Local Needs 24(c) Label for Florida only. Controls ger-
minating annuals. Apply once per crop season while forming bed
shoulders or after existing weeds in row middles are removed.
Paraquat Tomatoes and Postplanting 0.5
peppers directed spray in
row middles
Controls emerged weeds. Direct spray over emerged weeds 1 to 6
inches tall in row middles between mulched beds. Use a non-toxic
spreader. Do not apply more than 3 times per crop season.

Metribuzin Tomatoes only Directed spray in 0.25
(Sencor, row middles to
Lexone) 1.0
Controls germinating annuals. Apply in single or multiple applica-
tions of 1.0 Ib. ai./acre within crop season. Avoid applications for 3
days following cool, wet or cloudy weather to reduce possible crop
injury.


This publication was promulgated at a cost of $386.90, or 12 cents per copy, to provide Florida growers with
chemical herbicide information. 10-3.3M-83

COOPERATIVE EXTENSION SERVICE, UNIVERSITY OF FLORIDA, INSTITUTE OF FOOD AND AGRICULTURAL
SCIENCES, K. R. Tefertiller, director, in cooperation with the United States Department of Agriculture, publishes this Infor-
mation to further the purpose of the May 8 and June 30,1914 Acts of Congress;and is authorized to provide research, educa-
tional Information and other services only to Individuals and institutions that function without regard to race, Color, sex or
national origin. Single copies of Extension publications (excluding 4-H and Youth publications) are available free to Florida
residents from County Extension Offices. Information on bulk rates or copies for out-of-state purchasers is available from
C. M. Hinton, Publications Distribution Center, IFAS Building 664, University of Florida, Gainesville, Florida 32611. Before publicizing this
publication, editors should contact this address to determine availability.




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