Weeds insects diseases
This presentation is the property of its rightful owner.
Sponsored Links
1 / 20

Weeds, Insects & Diseases PowerPoint PPT Presentation


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

Weeds, Insects & Diseases. Information courtesy of Texas A&M University Turf Grass http://aggieturf.tamu.edu/aggieturf2/golf/gcindex.html. Weeds. Number one problem on golf courses Detract from green uniformity Aggressive competitors for Sunlight Moisture Nutrients . Weeds (cont.).

Download Presentation

Weeds, Insects & Diseases

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


Weeds insects diseases

Weeds, Insects & Diseases

Information courtesy of

Texas A&M University Turf Grass

http://aggieturf.tamu.edu/aggieturf2/golf/gcindex.html


Weeds

Weeds

  • Number one problem on golf courses

  • Detract from green uniformity

  • Aggressive competitors for

    • Sunlight

    • Moisture

    • Nutrients


Weeds cont

Weeds (cont.)

  • Effective weed control requires proper identification of the unwanted plants

  • Types

    • Grassy

    • Sedges

    • Broadleaf


Common turfgrass weeds

Common Turfgrass Weeds

  • Must identify weeds in order to properly treat the turf without damage

  • Grassy weed identification depends heavily on the vegetative characteristics of the plant.

  • Additional clues used in identification are

    • time of year

    • cutting height

    • soil moisture

    • shade.

  • Vegetative identification of

    grasses requires careful inspection

    of primary vegetative characteristics.


Common turfgrass weeds cont

Common Turfgrass Weeds (cont.)

  • Warm Season

    • Bermuda grass

    • St. Augustine grass

    • Buffalo grass

  • Cool Season

    • Annual Bluegrass

    • Chewings Fescue

    • Kentucky Bluegrass

    • Tall Fescue

  • For a complete list visit

    http://aggieturf.tamu.edu/aggieturf2/grasswee/turf.html


Grassy weeds perennials

Grassy Weeds- Perennials

  • Broomsedge

  • Carpetgrass

  • Johnsongrass

  • Knotgrass

  • Smutgrass

  • For a complete list visit

    http://aggieturf.tamu.edu/aggieturf2/grasswee/grass.html


Grassy weeds annual

Grassy Weeds- Annual

  • Annual bluegrass

  • Crowsfootgrass

  • Egyptian Crabgrass

  • Sandbur

  • Stinkgrass

  • Wild Oats

  • For a complete list visit

    http://aggieturf.tamu.edu/aggieturf2/grasswee/grass.html


Broadleaf weeds

Broadleaf Weeds

  • Can be easily controlled

    • Usually during post emergence

  • Common broadleaf weeds include

    • Bindweed

    • Ground Ivy

    • Poison Ivy

    • Wild Violet

  • For a complete list visit

    http://aggieturf.tamu.edu/aggieturf2/grasswee/broadlf.html


Sedges

Sedges

  • Usually appear in water soaked or slow draining areas in the turf

  • Hard to get rid of because they produce underground nutlets that produce new sedge plants

  • Common Sedges

    • Yellow Nutsedge

    • Texas Sedge

    • Annual Sedge

  • For a complete list visit

    http://aggieturf.tamu.edu/aggieturf2/grasswee/sedge.html


Insects

Insects

  • Insects must be properly identified in order to utilize control recommendations

  • Common Turf Insects

    • Big Eyed Bugs

    • Bermudagrass mites

    • Chinch Bugs

    • Red Fire Ants


Big eyed bug

Big Eyed Bug


Bermudagrass mites

Bermudagrass mites


Chinchbugs

Chinchbugs

  • Common in St. Augustinegrass

  • Creates yellow patches in turf


Red fire ants

Red Fire Ants

  • Common in Texas


Diseases

Diseases

  • Insects must be properly identified in order to utilize control recommendations

  • Common Turf Diseases

    • Dollar Spot

    • Rust

    • St. Augustine Decline

    • Take-All Patch


Dollar spot

Dollar Spot

  • Symptoms include silver dollar sized circular spots that are straw colored

  • Host Grasses Include

    • St. Augustine grass

    • Annual bluegrass

    • Kentucky bluegrass


Weeds insects diseases

Rust

  • Symptoms include yellow appearance progressing to red, then brown

  • Host Grasses include

    • Kentucky bluegrass

    • Tall fescue

    • Bermudagrass

    • St. Augustinegrass


St augustine decline

St. Augustine Decline

  • Symptoms include mottling or stippling

Source: http://aggie-horticulture.tamu.edu/archives/parsons/turf/publications/Staugdecline.html


Take all patch

Take-All Patch

  • Symptoms include circular patches up to 2 feet in diameter

  • Host grasses include

    • Bermudagrass

    • St. Augustinegrass

    • Fine fescues


Summary

Summary

  • Weeds and Insect control first begins with proper identification

  • Become familiar with common weeds, insects and diseases so a healthy turf can be maintained and treated

  • For more information and a complete list of weeds and insects visit http://aggieturf.tamu.edu/aggieturf2/insect/insectindex.html


  • Login