Lab 5

Card Set Information

Author:
wsucoug12
ID:
308759
Filename:
Lab 5
Updated:
2015-09-29 19:29:17
Tags:
Plant Path
Folders:

Description:
Plant path lab 5
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user wsucoug12 on FreezingBlue Flashcards. What would you like to do?


  1. What causes powdery mildew of Rose
    • Sphaerotheca pannosa
    • -Disease cycle is different between field and greenhouse.
  2. What are symptoms of Sphaerotheca pannosa
    • Small blister-like lesions
    • gray powdery growth on infected plant parts
    • -Distortion
    • -Cleistothecia
  3. What are Environmental factors for powdery mildew
    • Warm, dry weather diseases
    • • Free water NOT required for conidial
    • germination or penetration of plant
    • • High relative humidity sufficient
    • • Conidia will not geminate in free water
    • • Most powdery mildews are favored by dew
    • • Cool autumn weather stimulates
    • cleistothecium development
  4. How do you control powdery mildew diseases?
    • 1. Foliar Fungicides
    • – sulfur-containing, systemic
    • – sodium bicarbonate
    • – oils
    • 2. Disease-resistant varieties
    • 3. Sanitation
    • – removal of infested plant debris

What would you like to do?

Home > Flashcards > Print Preview