CTAHR Publications: Plant Diseases

General Plant Disease

• Top Crops, Top Diseases in Hawaii
• Plant Diseases, Link to CTAHR pubs
  
• Landscape disease problems in Hawaii
  
• Management Practices to Prevent and Control Diseases

Specific Plant Diseases

• Abutilon mosaic
  
• Aglaonema, Bacterial leaf blight
  
• Algal leaf spot, Cephaleuros
  
• Anthracnose in avocado
  
• Anthurium, Bacterial blight
• Anthurium, Burrowing nematode
  
• Anthurium decline, Controlling nematodes
  
• Anthurium, flower injuries
  
• Anthurium, Tomato spotted wilt virus
  
• Aphid-borne viruses, using protector plants
• Aster Yellows, see Watercress
  
• ‘Awa dieback
  
• ‘Awa root knot disease
  
• ‘Awa shot hole
  
• Bamboo, Kweilingia rust
  
• Banana, Black leaf streak
  
• Banana Bunchy Top Virus (BBTV)
• Banana, Crown rot and Anthracnose
  
• Banana, Nematodes
  
• Beach Morning Glory, Leaf Spot of Beach Morning Glory
• Blueberry rust
  
• Cassytha filiformis
  
• Citrus melanose
  
• Citrus scab
• Citrus Tristeza Virus
  
• Coconut Palm, Stem bleeding
  
• Coffee, Cercospora leaf spot
  
• Coffee nematode decline
  
• Coffee root-knot nematode
  
• Dasheen mosaic virus
  
• Dendrobium, Bacterial diseases
  
• Dendrobium, Fungal diseases
  
• Fishtail palm, Bacterial leaf blight
  
• Ginger, Diseases of (Zingiber officianale)
  
• Hawaiian Mistletoes (Korthalsella) (see Parasitic seed plants)
  
• Heliconia, Diseases of
  
• Hibiscus, Bacterial leaf spot
  
• Jackfruit, Rhizopus rot
  
• Koa, Gall Rust
  
• Ko’oloa’ula (Abutilon menziesii), Rust
  
• Lemongrass, Rust
  
• Lettuce, winter diseases
  
• Mango, Anthracnose
  
• Mango, Powdery Mildew
  
• Mushrooms: Fairy rings, Stinkhorns, Toadstools and Puffballs
  
• Nematode, burrowing
  
• Nematodes, plant parasitic
  
• Noni, Black flag (Phytophthora) 
  
• Noni, Root knot
• Ohia Rust (see Puccinia rust)
• Orchids, Foliar nematodes
  
• Orchids, Phytophthora diseases
  
• Palm, Red Sealing Wax and Colletotrichum leaf spot
  
• Papaya, Diseases of
  
• Papaya, Phytophthora blight
  
• Papaya Ringspot Virus
  
• Parasitic seed plants: Hawaiian mistletoes (Korthalsella)
  
• Pineapple, Nematode management
• Powdery Mildew of Garden Vegetables in Hawai'i
  
• Plumeria Rust
  
• Puccinia rust (Ohia rust)
  
• Raspberry Late Leaf Rust
  
• Rhapis Palm, Pseudocercospora leaf spot
• Rust of Canna Lily
• Rusts of 'Ilima (Sida fallax)
• Sooty Mold
  
• Spathiphyllum, Pythium Root Rot
  
• Sweet potato, Okinawan, and Java black rot
  
• Sweet potato, Rhizopus soft rot
  
• Taro leaf blight
  
• Tea (Camellia sinensis), diseases of
  
• Tea (Camellia sinensis), Zinc deficiency
  
• Tomato, Late blight (or Phytophthora)
• Tomato Yellow Leaf Curl
  
• Vegetables, Powdery Mildew of Garden Vegetables in Hawai'i
• Vegetables (Cruciferous), White Rust of Cruciferous Vegetables
• Vog, Volcanic emission injury
• Watercress: How to recognize Aster yellows in watercress
• Zucchini, Mulch as barrier to insect-caused viruses
  

Submitted by Kendal Lyon, Hawaii Island Master Gardeners
Photo credit:  Patty Anger