1. Home
  2. Question and Answer
  3. Houseplants
  4. Garden Articles
  5. Most Popular Plants
  6. Plant Nutrition
 Botanic Garden >> Gardening >  >> Question and Answer >> Plant Species >> Trees

Citrus Powdery Mildew: Identification and Treatment Options

Diagnosis: Powdery Mildew

White powder on leaf undersides = powdery mildew (obligate parasite fungus). Grows on living tissue, extracts nutrients via haustoria.

Fungicide Options (Rotate to Prevent Resistance)

  • Banner MAXX, Immunox
  • Benomyl (Benlate)
  • Folpet (Phaltan)
  • Bayleton, Strike, Triadimefon
  • Funginex (Triforine)
  • Triact, Rose Defense, Neem oil
  • Pipron
  • Phyton 27 (copper sulfate)
  • Rubigan AS
  • Cooke's Wettable, Safer Garden Fungicide, Microthiol Special (Sulfur)

Application Schedule

  1. First spray: spring at bud break
  2. Second spray: 10-14 days later
  3. Rotate fungicide classes each season

Natural/Organic Options

Neem oil, sulfur, copper-based fungicides. Check local nursery for availability.

Trees
Powdery Mildew on Large Jasmine: Fungicide Options and Resistance Management
Powdery Mildew on Bradford Pear: Identification and Fungicide Options
Powdery Mildew on Tulip Tree: Identification and Management
Quaking Aspen Powdery Mildew: Identification and Large-Tree Management
Powdery Mildew on Young Orange Tree: Neem Oil Treatment
Powdery Mildew on Oak Trees: What to Do
Yucca's Natural White Film: Not Powdery Mildew
Yucca Powdery Mildew: Lysol Spray Treatment
Powdery Mildew on Houseplants: Identification, Prevention & Treatment
Powdery Mildew: Identification, Conditions, and Management
Garden Articles

Ash Tree Marginal Scorch: Root Stress, Not Disease

Satsuma Fruit Splitting and Leaf Curl: Water and Leafminer

Diagnosing Lilac Decline: Root Rot and Herbicide Injury

Saving a Dying Palm Tree: Identifying and Treating Trunk Rot

Plum Tree Leaf Curl and Eggs: Beneficial vs. Pest Identification

Powdery Mildew on Crimson King Maple: Identification and Fungicide Options

Honeysuckle Powdery Mildew and Aphids

Plants

Tulip Tree Troubles: Sapsucker Damage and Basal Decay

Pecan Tree Nut Problems: Weevils, Scab, and Spray Schedule

Crimson Sentry Maple Powdery Mildew: Multiple Control Options

Powdery Mildew on Indoor Rosemary: Edible-Safe Treatment

Kwanzan Cherry Oozing Sap: Bacterial Canker or Mechanical Injury?

Controlling Apple Powdery Mildew: Cultural and Chemical Strategies

Comprehensive Guide to Powdery Mildew on Roses

Copyright © www.100flowers.win Botanic Garden All Rights Reserved