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    • Coffee Leaf Rust Photos
    • HDOA CLR Pest Alert >
      • HDOA CLR Report Form
    • Sanitation and Disinfestation Info
    • Coffee Tree Health and Nutrition
    • Surveying, Sampling and Monitoring of CLR >
      • HDOA CLR Field Guide and Submission Form
    • Spraying for CLR and Spray Product Info >
      • Spraying for CLR - English
      • Pulverización para CLR - Español
      • Spraying for CLR - Tagalog
      • Spraying for CLR - Ilocano
      • Sprayer Calibration and Pesticide Calculations
      • Priaxor Xemium Info
      • ProBlad Verde Info
      • Pesticide Use FAQs
      • Biostimulant Products
    • Pruning for CLR and CBB
    • Coffee Leaf Rust Poster >
      • La Roya del Café Póster - Español
      • Coffee Leaf Rust Poster - Tagalog
      • Coffee Leaf Rust Poster - Ilocano
    • CLR Trifold Brochure
    • CLR Presentations and Meetings
    • CLR Publications
    • CLR/CBB Subsidy Program Info
    • Certis BotaniGard and Mycotrol Compatibility Chart
  • CBB Management
    • Field Sanitation
    • Pruning >
      • Two-Year Cycle Block Pruning Method by Aki Yamagishi
    • Feral and Unmanaged Coffee Trees
    • Field Monitoring
    • CBB Control >
      • Predators of CBB
    • Harvesting
    • Shipping
    • Beauveria Subsidy Program Info
    • Certis BotaniGard and Mycotrol Compatibility Chart
    • 2020 CBB IPM Document
    • CBB & Coffee Presentations & Posters
    • CBB Publications
  • Events and Announcements
    • 6/24 Coffee Desuckering & Vertical Selection Field Day - Maui
    • 6/28 Ka'u Coffee Project & Record Keeping Workshop - Ka'u
  • Hawaii Coffee Pests and Problems
    • Anthracnose
    • Banana Moth
    • Bird Damage
    • Black Twig Borer
    • Blister Spot
    • Cercospora Leaf Spot and Berry Blotch
    • Coffee Berry Borer
    • Coffee Root-knot Nematode
    • Food Safety Concerns - Slug, feces, etc.
    • Frost Damage
    • Fruit Fly
    • Glyphosate Herbicide Injury
    • Green Scale and Sooty Mold
    • J-rooting
    • Little Fire Ant
    • Mite Feeding Damage
    • Nutritional Problems
    • Over-bearing Dieback
    • Rodent Damage
    • Skin Cracking
    • Slug and Snail Damage
    • Sunburn on Coffee
  • NKO - Coffee Pests and Diseases Not in Hawaii
    • Coffee Berry Disease - NKO
    • Coffee Leaf Miner - NKO
    • Coffee White Stem Borer - NKO
    • Coffee Wilt Disease - NKO
  • Coffee Publications and Presentations
    • Growing Coffee in Hawaii
  • Coffee Leaf and Soil Sampling Instructions
  • HDOA Rules - Coffee
  • USDA - Coffee Rules
  • Coffee Organizations in Hawaii
  • Agricultural Theft
    • Chapter 145 - Reg. of Farm Product
    • Dealer Licensing
    • Contacts
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Coffee Tree Health & Nutrition & Soil Health

This page is under construction.

Tree health, vigor and the productivity, development, and quality of fruit including coffee fruit, is dependent on many factors including, but not limited to:
  • Soil type and condition (water and nutrient holding capacity, pH, anaerobic, etc.),
  • Elevation, temperature, rainfall and other climatic or microclimatic conditions,
  • Shade, partial shade or no shade plantings (cloud-cover, overstory trees, etc.),
  • Intercropping (needs of coffee and other types of plants nearby),
  • Presence or absence of ground cover and weeds,
  • Coffee variety, cultivar, or selection,
  • Grafted or non-grafted (seedling, cutting) tree and type of rootstock,
  • Tree age,
  • Root health (J-root, coffee root-knot nematode-infected, water-logged/deficient, etc.),
  • Pest and disease absence, presence, and severity,
  • Past and current use of organic and non-organic pesticides,
  • Type of pruning and current phase of pruning cycle,
  • Past fertilizer use, current levels and availability of nutrients in the soil and plant,
  • Timing of applications, quantity, quality, and the type of fertilizers used, and
  • Current, past, and future cherry yield.
 
While the factors above are important for overall plant and soil health, the main cause of CLR epidemics (severe cases) is high tree yield coupled with the absence or lack of fertilization. The 2012-2013 CLR epidemic in Central America was an unfortunate example of the impact of reducing and misusing inputs such as fertilizers and fungicides. Proper fertilization and soil pH, a reduction in fruit load, and other plant nutrition-related influences can lessen or cancel out the effects of CLR severity. But the application of fertilizers without consideration of type, amount, timing, and frequency is not a guarantee of reducing a CLR epidemic. Other factors of CLR severity include tree susceptibility, localized climate, soil fertility, crop density, and the presence or absence of shade coupled with regional environmental factors such as rainfall.
 
Proper soil pH and fertility and tree health can help coffee trees recover from defoliation by having adequate nutrition and energy to regrow and replace dropped CLR-infected leaves with new, healthy ones. Branch death and yield losses can also be avoided with an effective fertilization and soil health program. 


Research in Hawaii shows a general lack of (nutrients).

Below is some Hawaii-based research information.

Below is some coffee research based in other countries.

Opinions or recommendations are those of the author(s) and do not necessarily reflect the views of their employers or funding agencies. Mention of a trademark or proprietary name does not constitute an endorsement, guarantee, or warranty by the University of Hawai‘i Cooperative Extension Service, Hawai‘i Department of Agriculture, U.S. Department of Agriculture, Agricultural Research Service or its employees and does not imply recommendation to the exclusion of other suitable products.


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  • Home
  • Coffee Leaf Rust
    • Coffee Leaf Rust Photos
    • HDOA CLR Pest Alert >
      • HDOA CLR Report Form
    • Sanitation and Disinfestation Info
    • Coffee Tree Health and Nutrition
    • Surveying, Sampling and Monitoring of CLR >
      • HDOA CLR Field Guide and Submission Form
    • Spraying for CLR and Spray Product Info >
      • Spraying for CLR - English
      • Pulverización para CLR - Español
      • Spraying for CLR - Tagalog
      • Spraying for CLR - Ilocano
      • Sprayer Calibration and Pesticide Calculations
      • Priaxor Xemium Info
      • ProBlad Verde Info
      • Pesticide Use FAQs
      • Biostimulant Products
    • Pruning for CLR and CBB
    • Coffee Leaf Rust Poster >
      • La Roya del Café Póster - Español
      • Coffee Leaf Rust Poster - Tagalog
      • Coffee Leaf Rust Poster - Ilocano
    • CLR Trifold Brochure
    • CLR Presentations and Meetings
    • CLR Publications
    • CLR/CBB Subsidy Program Info
    • Certis BotaniGard and Mycotrol Compatibility Chart
  • CBB Management
    • Field Sanitation
    • Pruning >
      • Two-Year Cycle Block Pruning Method by Aki Yamagishi
    • Feral and Unmanaged Coffee Trees
    • Field Monitoring
    • CBB Control >
      • Predators of CBB
    • Harvesting
    • Shipping
    • Beauveria Subsidy Program Info
    • Certis BotaniGard and Mycotrol Compatibility Chart
    • 2020 CBB IPM Document
    • CBB & Coffee Presentations & Posters
    • CBB Publications
  • Events and Announcements
    • 6/24 Coffee Desuckering & Vertical Selection Field Day - Maui
    • 6/28 Ka'u Coffee Project & Record Keeping Workshop - Ka'u
  • Hawaii Coffee Pests and Problems
    • Anthracnose
    • Banana Moth
    • Bird Damage
    • Black Twig Borer
    • Blister Spot
    • Cercospora Leaf Spot and Berry Blotch
    • Coffee Berry Borer
    • Coffee Root-knot Nematode
    • Food Safety Concerns - Slug, feces, etc.
    • Frost Damage
    • Fruit Fly
    • Glyphosate Herbicide Injury
    • Green Scale and Sooty Mold
    • J-rooting
    • Little Fire Ant
    • Mite Feeding Damage
    • Nutritional Problems
    • Over-bearing Dieback
    • Rodent Damage
    • Skin Cracking
    • Slug and Snail Damage
    • Sunburn on Coffee
  • NKO - Coffee Pests and Diseases Not in Hawaii
    • Coffee Berry Disease - NKO
    • Coffee Leaf Miner - NKO
    • Coffee White Stem Borer - NKO
    • Coffee Wilt Disease - NKO
  • Coffee Publications and Presentations
    • Growing Coffee in Hawaii
  • Coffee Leaf and Soil Sampling Instructions
  • HDOA Rules - Coffee
  • USDA - Coffee Rules
  • Coffee Organizations in Hawaii
  • Agricultural Theft
    • Chapter 145 - Reg. of Farm Product
    • Dealer Licensing
    • Contacts
  • Coffee Crop Insurance
  • Archive
  • About us
  • Blog
  • New Page