Pasture Weed Control
Download
1 / 57

Pasture Weed Control Ralph E. Whitesides Utah State University Plants, Soils, and Climate - PowerPoint PPT Presentation


  • 54 Views
  • Uploaded on

Pasture Weed Control Ralph E. Whitesides Utah State University Plants, Soils, and Climate. Is it possible to fight weeds effectively on small acreages in Utah?. What is a weed?. Any plant growing where you don’t want it. Are weeds bad? What function do weeds play in the environment?

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Pasture Weed Control Ralph E. Whitesides Utah State University Plants, Soils, and Climate' - tahir


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

Pasture Weed Control

Ralph E. Whitesides

Utah State University

Plants, Soils, and Climate



What is a weed
What is a weed? in Utah?

Any plant growing where you don’t want it.

Are weeds bad?

What function do weeds play in the environment?

What are weeds telling us?


Why worry about weeds
Why Worry About Weeds? in Utah?

  • They are just plants. Right?

  • Its not like you have a rampaging grizzly in your garden. Right?

  • No!


  • Once weeds move in they stay. in Utah?

  • They multiply.

  • Soon the unwanted and uninvited guests have taken your land and won’t give it back without a fight!


What is the first step
What is the first step? in Utah?

  • Take inventory of property

  • If you try to control weeds without a game plan there is a good chance you won’t succeed.


4 golden guidelines of weed control for small acreage properties
4 Golden Guidelines of Weed Control for Small Acreage Properties

  • Know what you want to do with your property. (Why did you buy it in the first place?)

  • Promote healthy vegetation.

  • Implement good land use practices.

  • No one weed control method works alone.


Controlling weeds in your pasture
Controlling weeds in your pasture Properties

Weeds are best controlled through an integrated approach using several of the following methods

  • Prevention

  • Detection

  • Control

    • Cultural

    • Mechanical

    • Biological

    • Chemical

  • Restoration


Two working rules for controlling weeds in your pasture prevention
Two Working rules for controlling weeds in your pasture Properties“Prevention”

  • Prevent weeds in the first place

  • If you cannot do #1 everything else will be more work, more time, and more money. More of everything!


Controlling weeds in your pasture1
Controlling weeds in your pasture Properties

How practical is Rule #1?


Controlling weeds in your pasture2
Controlling weeds in your Propertiespasture

How practical is Rule #1?

Where do weeds come from?


Controlling weeds in your pasture3
Controlling weeds in your pasture Properties

How practical is Rule #1?

Where do weeds come from? (prevention)

  • Seed Bank in the soil

  • Irrigation Water

  • Off-site Feed – Hay

  • Bedding materials

  • Wind borne – animal borne (field bindweed seeds can survive 144 hrs in stomach of migrating birds)

  • Seed Mixtures


Controlling weeds in your pasture4
Controlling weeds in your pasture Properties

How do we implement Rule #2? (control)

  • Management

  • Knowledge

  • Judgment

  • Experience

  • Work – Time – Money

  • More Work – Time – Money

  • Constant Work – Time – Money


Controlling weeds in your pasture5
Controlling weeds in your pasture Properties

How do we implement Rule #2? (control)

What caused us to get weeds in the first place?


Controlling weeds in your pasture6
Controlling weeds in your pasture Properties

How do we implement Rule #2? (control)

What caused us to get weeds in the first place?

The answer to that question will aid us in our work to control weeds.


Controlling weeds in your pasture7
Controlling weeds in your pasture Properties

How do we implement Rule #2? (control)

What caused us to get weeds in the first place?

The answer to that question will aid us in our work to control weeds.

Grazing Issues – Overgrazing, timing, wrong animals

Soil Issues – Fertility, salt, texture, etc

Water Issues – irrigation and natural precipitation, too much or too little

Seed mixture- not suited to environment


Controlling weeds in your pasture8
Controlling weeds in your pasture Properties

How do we implement Rule #2? (control)

Cause: Improper grazing – treating the pasture as a corral instead of as a pasture.


Controlling weeds in your pasture9
Controlling weeds in your pasture Properties

How do we implement Rule #2? (control)

What is a Corral? What is a Pasture?


Controlling weeds in your pasture10
Controlling weeds in your pasture Properties

We may want something like this?


Controlling weeds in your pasture11
Controlling Propertiesweeds in your pasture

These may be more realistic.


Controlling weeds in your pastures
Controlling weeds in your Pastures Properties

  • “Detection”

  • What am I trying to control? Identify the weed.

  • Grass – Broadleaf

    • Annual – Perennial

    • Edible – Poisonous

    • Spreading – Non-spreading

    • HOW DID IT GET TO BE A WEED?


Controlling weeds in your pastures1
Controlling weeds in your pastures Properties

  • Whatever caused the weed to become a problem or concern in the first place must be addressed to help you in controlling it.

  • Each potential solution is as individual as is the problem and the person wanting to solve it.


Controlling weeds in your pastures2
Controlling weeds in your pastures Properties

“Control”

  • General Guidelines:

  • Proper irrigation and soil fertility

  • Mowing to prevent from going to seed

  • Spot spraying as soon as weeds are detected

  • Monitoring the Pasture (high eyes to acre ratio)



Approved herbicides

2,4-D / MCPA Properties

Amber

Cimarron / Escort

Cimarron Max

Clarity / Banvel

Crossbow

Curtail

Garlon / Remedy

Grazon P+D

Journey

Milestone

Plateau

Redeem R&P

Roundup

Spike

Transline / Reclaim

Telar

Tordon

Transline

Weedmaster

Approved Herbicides


Approved herbicides1

2,4-D / MCPA Properties

Amber

Cimarron / Escort

Cimarron Max

Clarity / Banvel

Crossbow

Curtail

Garlon / Remedy

Grazon P+D

Journey

Milestone

Plateau

Redeem R&P

Roundup

Spike

Transline / Reclaim

Telar

Tordon

Transline

Weedmaster

Approved Herbicides


Dyer’s Woad Properties

Isatis tinctoria


Perennial Pepperweed Properties

Lepidium latifolium


Hoary Cress Properties

Cardaria draba


Cimarron
Cimarron Properties

  • Metsulfuron (Escort renamed)

  • Hoary cress, dyer’s woad, perennial pepperweed, thistles, houndstongue

  • Must add surfactant or COC

  • No grazing restrictions

  • Tall fescue and perennial ryegrasses are sensitive (damage)


Cimarron max
Cimarron Max Properties

  • Metsulfuron + dicamba + 2,4-D

  • Ratio: 5 oz Part A + 2.5 gal Part B

  • Greater weed spectrum controlled

  • Must add surfactant or COC

  • Dicamba’s grazing restrictions

  • Tall fescue and perennial ryegrasses are sensitive (damage)


Telar
Telar Properties

  • Chlorsulfuron

  • Hoary cress, dyer’s woad, perennial pepperweed, thistles, houndstongue

  • Must add surfactant or COC

  • No grazing restrictions

  • Tall fescue and perennial ryegrasses are sensitive (damage)


Russian Knapweed Properties

Centaurea repens


Spotted Knapweed Properties

Centaurea maculosa


Yellow Starthistle Properties

Centaurea solstitialis


Milestone
Milestone Properties

  • Aminopyralid

  • Knapweeds and thistles

  • Weak on mustards

  • Closely related to Tordon

  • Not “Restricted-Use”

  • Wildland and recreation sites


Medusahead Properties

Taeniatherum caput-medusae


Plateau
Plateau Properties

  • Imazapic

  • Winter annual grasses

    • Downy Brome

    • Medusahead

  • Rangeland improvement

  • Safe on most established perennial grasses



Houndstongue Properties

Cynoglossum officinale


Houndstongue
Houndstongue Properties

  • Foothills, pastures, roadsides

  • Horses, cattle, sheep

  • Fresh (unpalatable) or in hay

  • Cummulative, may taint milk


Houndstongue symptoms
Houndstongue Properties(Symptoms)

  • Dullness, wandering

  • Increased pulse and respiration

  • Weakness, nervousness

  • Constipation or diarrhea

  • Death by liver hemorrhage


Houndstongue management
Houndstongue Properties(Management)

  • Avoid contaminated hay

  • Digging / pulling

  • Escort (Cimmaron), Ally, Tordon, Clarity (Banvel), 2,4-D


Poison Hemlock Properties

Conium maculatum


Poison hemlock
Poison Hemlock Properties

  • Wet areas, disturbed sites

  • Sheep, cattle, horses, humans

  • Coniine and other alkaloids

  • 4 to 8 oz sheep, 10 to 16 oz cow


Poison hemlock symptoms
Poison Hemlock Properties(Symptoms)

  • Salivation, nervous trembling

  • Bloating, lack coordination

  • Pupil dilation, rapid pulse

  • Blue mouth lining

  • Respiratory paralysis, coma


Poison hemlock symptoms cont
Poison Hemlock Properties(Symptoms - cont.)

  • Abortion

  • Crooked calf disease (same timing and effect as lupine)

  • Death in 2 to 3 hours

  • Confused with wild edibles, has caused death of children


Poison hemlock management
Poison Hemlock Properties(Management)

  • Animals normally avoid (fresh)

  • Do not cut in hay

  • 2,4-D, Ally, Escort (Cimmaron), digging


Weed control in pastures restoration
Weed Control in Pastures Properties“Restoration”

  • Summary Thoughts-

  • Fertilizer- 150 lbs/a split in 3 treatments (50+ 50+ 50 in April- July- September)

  • Irrigation- improve distribution and training

  • Spot treat weeds- use a backpack or hand held sprayer, and treat problem areas (especially fence lines on a regular basis)


Controlling weeds in your pastures3
Controlling weeds in your pastures Properties

Questions?


ad