insect management tools
Download
Skip this Video
Download Presentation
Insect Management Tools

Loading in 2 Seconds...

play fullscreen
1 / 24

Insect Management Tools - PowerPoint PPT Presentation


  • 94 Views
  • Uploaded on

Insect Management Tools. Ric Bessin Extension Entomologists University of Kentucky Lexington. Insecticide Changes. Premixes Cobalt, Hero New Chemistry Belt, Oberon, Radiant New formuations Force CS, Regent TS (?). Pest Management Changes. Higher input costs/moderate prices

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 'Insect Management Tools' - ginata


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
insect management tools

Insect Management Tools

Ric Bessin

Extension Entomologists

University of Kentucky

Lexington

insecticide changes
Insecticide Changes
  • Premixes
    • Cobalt, Hero
  • New Chemistry
    • Belt, Oberon,
    • Radiant
  • New formuations
    • Force CS, Regent TS (?)
pest management changes
Pest Management Changes
  • Higher input costs/moderate prices
    • Seed costs as high as $350/unit
    • Dec 09 corn $3.72
    • Effect of Economic thresholds?
  • Preventive Controls
    • Bt crops
    • Seed treatments
    • More stacked Bts
southwestern corn borer total tunnel length per 20 plants musser mississippi state university 2006

500

450

400

350

300

250

200

150

100

50

0

VT Pro

YieldGard

Herculex

Non Bt

Southwestern Corn BorerTotal Tunnel Length per 20 Plants Musser, Mississippi State University, 2006
future of bt corn
Future of Bt Corn
  • Resistance Management
    • Redundant Bt genes
      • SmartStax
    • New refuge strategies (??)
      • AcresMax
    • Reduced refuges
      • SmartStax, AcresMax
  • Broader-spectrum
    • More genes
      • YieldGard VT Pro
slide9

What is the size your “B.t.” corn refuge?

  • 0 %
  • 1 to 19 %
  • 20 to 40 %
  • 41 to 60 %
  • More than 60 %

Early Bird Meetings

Turning Point Data

90 respondents

2008

slide10

Are you worried about resistance to “B.t.” traits ?

  • Yes
  • No

Early Bird Meetings

Turning Point Data

101 respondents

2008

resistance management
Resistance Management
  • High-dose refuge strategy
    • Goal 500 : 1 ratio of susceptible to resistant
      • KEY ASSUMPTIONS
        • Random mating
        • High dose event at correct time/tissue in plant
        • Frequency of resistance initially low
  • No more than 80% Bt corn
    • Refuge within ½ mile for CB Bt’s
    • Refuge immediately adjacent for RW and CB/RW Bt lines
when is bt corn needed for ky
When is Bt Corn Needed (for KY)?
  • Bt CB –
    • Late planted corn
    • Corn planted after May 5
  • Bt RW –
    • Corn following corn >2 yrs
  • Bt CB + RW –
    • When both of the above is true
bt corn summary
Bt-Corn Summary

New Bt corn traits will probably:

  • Not effect on yield in most cases
  • Better ECB & SWCB resistance management
  • May have reduced refuge (SmartStax)
  • Improved control of CEW & FAW
  • Potential mycotoxin reduction
  • Reduce corn earworm populations if widely

adopted – benefit soybean and corn

seed treatments
Seed Treatments
  • On virtually all corn seed
  • Providing insect control to help with stand establishment
  • Other benefits
    • Seedling vigor?
environmental issues with seed treatments
Environmental Issues with Seed Treatments
  • Effect on Coleomegillamaculata, a lady beetle
  • Effect on Honey bees
direction of seed treatments
Direction of Seed Treatments
  • Vigor enhancement
  • Nematode control
  • Resistance management – new classes of insecticides for seed treatments
wireworm recommendations
Heavy Pressure

Consider RW seed treatments

Consider soil-applied insecticides (in furrow), rootworm rates

Light to Moderate

Consider seed treatments (secondary pest rates)

In-furrow soil-applied insecticides

Wireworm Recommendations
  • Don’t plant early into high risk sites
slide19

Are you worried about resistance to seed applied Insecticides?

  • Yes
  • No

Early Bird Meetings

Turning Point Data

65 respondents

2008

resistance management1
Resistance Management
  • Resistance likely to play a larger role in pest management in coming years.
  • Many of the most commonly used pesticide belong to only two chemical groups, pyrethroids and neonicotinyls.
two most common groups
Pyrethroids

Ambush

Asana

Baythroid

Capture

Danitol

Decis

Mustang Max

Pounce

Proaxis

Renounce

Warrior

Neonicotinoids

Actara

Admire

Assail

Calypso

Clutch

Cruiser

Gaucho

Platinum

Poncho

Prescribe

Provado

Venom

Two most common groups
is resistance appearing
Is Resistance Appearing?
  • Corn earworm (aka tomato fruitworm, soybean podworm, cotton bollworm) and pyrethroids?
  • Whiteflies – Bemisiatabaci Q biotype found in Kentucky.
insecticide resistance rule 1
Insecticide Resistance: Rule 1
  • Do not treat successive generations of a pest with chemicals of the same mode of action (use sequences of products)
    • Do not tank mix products with same MOA
    • Know the chemical class / Mode of action (IRAC codes!!)
    • Know the life cycle of the pest
soybean pests
Soybean Pests
  • Soybean aphid
  • Dectes stem borer
  • Red-shouldered stink bug
  • Megacoptacribraria
  • Western bean cutworm
  • Variant corn rootworm
ad