Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Hybrid Sterility - Integrated Pest Management - Handout, Exercises of Pest Management

Main topics of this course are: Biocontrol Approaches, Decision Making, Disadvantages of Cultural Controls, EBPM Status, Enforced Crop Production Rules, Hybrid Sterility, IPM Evolution Continued, Regulatory Tactics, Resistance Categories. Key points of this lecture handout are: Hybrid Sterility, Microbially, Genetic Manipulation, Cytoplasmic Incompatibility, Wolbachia in Lower Flies, Physical and Mechanical Tactics, Environmental Modifications, Exclusion in Structures, Arthropods, Physical Excl

Typology: Exercises

2012/2013

Uploaded on 08/31/2013

jaee
jaee 🇮🇳

4.7

(22)

101 documents

1 / 7

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
3. Hybrid Sterility
Males & Females of different strains can produce non-viable
offspring
Incompatible strains can be generated through several ways
– Direct genetic manipulation (Transposable Elements)
– Microbially-mediated (Cytoplasmic Incompatibility)
Example: Wolbachia in lower flies
Physical & Mechanical Tactics
Main Categories
• Environmental Modification
pf3
pf4
pf5

Partial preview of the text

Download Hybrid Sterility - Integrated Pest Management - Handout and more Exercises Pest Management in PDF only on Docsity!

3. Hybrid Sterility

  • Males & Females of different strains can produce non-viable

offspring

  • Incompatible strains can be generated through several ways
    • Direct genetic manipulation (“Transposable Elements”)
    • Microbially-mediated (Cytoplasmic Incompatibility)

Example: Wolbachia in lower flies

Physical & Mechanical Tactics

Main Categories

  • Environmental Modification
  • Physical Exclusion
  • Direct control of pest individuals

Environmental Modifications in Structures

  • Eliminate conditions conducive to a pest infestation will reduce pest attractions to a particular area.
  • These include:
    • Removing the breeding source if possible,
    • Eliminating moisture conditions,
    • Eliminating harborages,
    • Cutting back shrubs and tree limbs next to buildings,
    • Using proper lighting (light management) to draw night flying insects away from the property. Environmental Modification Categories

Exclusion in Structures

  • Doors fit & seal, windows screened, both kept shut.
  • Caulking & other sealants used at:
    • Utility entrances (plumbing, electrical, sewer)
    • Exterior (wood trim, brick mortar, foundation cracks & crevices).
  • Isolation of deliveries & waste.

Birds in structures are often managed via exclusion

Physical Exclusion in Fields

  • Barriers: Effectiveness varies by pest
    • Mollusks
    • Arthropods
  • Birds
  • Mammals
  • Traps
  • Weeds
  • Arthropods
  • Vertebrates

Barrier Examples

Trap Examples -- Click on picture for more detail

Physical Controls in Structures

  • Thermal Controls (heat and cold treatment)
  • Electrocution (zappers)
  • Microwave suspect materials
  • Generally more practical in small areas than large ones.
  • Labor intensive
  • Cumbersome (e.g. must remember where traps are located & service them)
  • Inefficient (removes only a small portion of pest population)
  • Often viewed as inhumane
  • Traps are more useful as a monitoring procedure.

Summary of Non-Chemical Methods