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      • Two-Year Cycle Block Pruning Method by Aki Yamagishi
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    • Slug and Snail Damage
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Slug and Snail Damage


Slugs and snails can damage coffee trees; particularly new plantings or succulent young verticals and shoots. They damage the plants by rasping and consuming the bark and cambium. 

The bark and cambium are very important to plant growth, strength, and health. The bark protects the internal workings of the plant trunk and branches. The cambium is full of actively dividing cells that either become xylem (wood) and phloem (bast) tissues which are responsible for the growth and thickness of stems and roots as well as wound healing. The xylem is important because it transports water, nutrients and plant hormones from the roots to the leaves and apex of the plant. The phloem is important because it transports sugars, amino 
acids and plant hormones basipetally from the leaves and apex of the plant toward the roots. All parts of the trunk and branch that includes the bark, xylem and phloem, provide physical support for the entire plant. ​

When slugs and snails eat and strip away the bark and cambium, the plant is weakened structurally. The transport of water, nutrients, sugars, amino acid, plant hormones, and other essential elements are are impeded or completely stopped. In the long run, these trees remain stunted and do not grow properly compared to healthy, undamaged trees. Removal of these stems or branches and replacement of these damaged trees is recommended.

In areas of high slug and snail populations, control is suggested prior to and during the planting of young coffee trees. Subsequent treatments may be warranted to control incipient populations. 

Control and treatment options:
  • Slug and snail pesticides registered for Hawai‘i commercial growers, landscapers and pest control operators 
  • Barriers, repellents and antifeedants for slug and snail control
  • Managing slugs, snails, and flatworms in the home garden...

Contact website management if you require any assistance with the site or information provided.
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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
  • 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