Weed management issues
This presentation is the property of its rightful owner.
Sponsored Links
1 / 23

WEED MANAGEMENT ISSUES PowerPoint PPT Presentation


  • 45 Views
  • Uploaded on
  • Presentation posted in: General

WEED MANAGEMENT ISSUES. Pigweeds Marestail Control Volunteer Corn Herbicide Update. Turn Out the Lights - The Party’s Over. Aaron G. Hager Department of Crop Sciences University of Illinois. Lyrics. Turn out the lights, the party’s over They say that all good things must end

Download Presentation

WEED MANAGEMENT ISSUES

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Weed management issues

WEED MANAGEMENT ISSUES

Pigweeds

Marestail Control

Volunteer Corn

Herbicide Update


Turn out the lights the party s over

Turn Out the Lights -The Party’s Over

Aaron G. Hager

Department of Crop Sciences

University of Illinois


Lyrics

Lyrics

Turn out the lights, the party’s over

They say that all good things must end

Let’s call it a night the party’s over

And tomorrow starts the same old thing again

?


Waterhemp spp

Waterhemp Spp.

  • Common Waterhemp (Amaranthus rudis)

  • Tall Waterhemp (Amaranthus tuberculatus)


Waterhemp spp1

Waterhemp Spp.

Source: Dr. Aaron Hager, Univ of IL


Palmer amaranth

Palmer Amaranth


Weed management issues

Palmer Amaranth in Fulton County - 2009

Dr. Bill Witt

Cam Kenimer


Vegetative characteristics of pigweeds in ky

Vegetative Characteristics of Pigweeds In KY


Reproductive characteristics of pigweeds in ky

Reproductive Characteristics of Pigweeds In KY


Weed management issues

COMPARASION OF FLOWERING STRUCTURES


Waterhemp palmer amaranth biology create challenges for soybean growers

WATERHEMP & PALMER AMARANTH BIOLOGY CREATE CHALLENGES FOR SOYBEAN GROWERS

  • Prolific seed producers. Seed scattered with combines.

  • Dioecious (male & female plants). Pollen flow contributes to dispersal.

  • Multiple events of plant emergence throughout the season.

  • Palmer grows rapidly and difficult to control:

    • 3” tall with Flexstar

    • 5” to 6” tall for Ignite in LL soybean.


Types of herbicide resistance in major pigweed species in the us

TYPES OF HERBICIDE RESISTANCE IN MAJOR PIGWEED SPECIES IN THE US

X = Resistance has been documented.

Most of these confirmed based on criteria in International Survey of Herbicide Resistant Weeds (11-07-09)


Herbicide options for waterhemp control in soybean

HERBICIDE OPTIONS FOR WATERHEMP CONTROL IN SOYBEAN

  • Authority Assist

  • Authority First / Sonic

  • Authority MTZ

  • Boundary

  • Envive

  • Gangster

  • Linex

  • Prefix

  • Spartan

  • Valor Sx / Encompass

  • Valor XLT

  • Cobra

  • Flexstar

  • Reflex

  • Ultra Blazer

SOIL APPLIED

POSTEMERGENCE


Herbicide options for waterhemp control in soybeans

HERBICIDE OPTIONS FOR WATERHEMP CONTROL IN SOYBEANS

SOIL APPLIED

  • Linen

  • Prefix

  • Spartan

  • Valor Sx / Encompass

  • Valor XLT

  • Authority Assist

  • Authority First / Sonic

  • Authority MTZ

  • Boundary

  • Envive

  • Gangster

POSTEMERGENCE

  • Cobra

  • Flexstar

  • Reflex

  • Ultra Blazer


Herbicide options for palmer amaranth control in soybeans

HERBICIDE OPTIONS FOR PALMER AMARANTHCONTROL IN SOYBEANS

SOIL APPLIED

  • Authority First/Sonic

  • Authority MTZ

  • Valor Sx / Encompass

  • Valor XLT

  • Dual

  • Intrro

  • Prefix

  • Prowl

  • Sencor

  • Treflan

>

POSTEMERGENCE

  • Cobra

  • Flexstar

  • Ultra Blazer

  • Ignite in LL soybeans

>


Burndown control of marestail

Burndown Control of Marestail

2,4-D ester

Sharpen

Optill

Ignite


Weed management issues

VOLUNTEER CORN IS A WEED

1 Volunteer Corn Clump/8 ft2

  • Reduces Soybean Yield 25% Source: Becket & Stoller 1988

Corn yield reduced 42 to 60 % due to interference from volunteer corn plants

(Source Univ. of Illinois)

UKWeed Sci


Herbicide options for controlling unwanted corn plants prior to planting field corn

Herbicide Options for Controlling Unwanted Corn Plants Prior to Planting Field Corn

* SELECT MAX Replant no sooner than 6 days after application

UK Weed Sci


Soybean herbicides labeled for controlling volunteer corn

Soybean Herbicides Labeled For Controlling Volunteer Corn

* Price does not include cost of application or adjuvants

* * Will not Control Glyphosate -Tolerant Volunteer Corn.

UKWeed Sci


Corn herbicide update

Corn Herbicide Update

  • Sharpen (saflufenacil) *

  • Integrity (saflufenacil + dimethenamide) *

  • Corvus (isoxaflutol + thiencarbazone)

  • Accent Q (nicosulfuron + safener)

  • Steadfast Q (nicosulfuron + rimsulfuron + safener)

  • Valor (14-Day EPP)

* Kixor technology


Soybean herbicide update

Soybean Herbicide Update

  • Sharpen (saflufenacil) *

  • Optill (saflufenacil + imazethapyr) *

  • Envive (chlorimuron + thifensulfuron + flumioxazin)

  • Ignite 280 (glfosinate ) Burndown & Post in LL soybean

* Kixor technology


Wheat herbicide update

Wheat Herbicide Update

  • PowerFlex (pyroxsulam)


  • Login