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PEST MANAGEMENT DECISION GUIDE: GREEN AND YELLOW LIST

Coffee Berry Disease

Colletotrichum kahawae
Kenya
  • Plant resistant varieties e.g. Ruiru 11 or Batian
  • Prune properly after harvest to maintain open penetration and improve aeration
  • Remove old stems and thin out branches as the old stems are more susceptible than young ones
  • Change the crop cycle after every 7 years
  • Do a pre-rain preventive spray before the short and long rain seasons. (see yellow direct control)
  • During wet, cold and humid conditions inspect for: - Brown black sunken spots on berries - Lesions on young berry stalk that shed off - Visible pink spore masses on lesions - Black berries
  • Apply direct control immediately after noting signs of disease
  • Pluck off diseased berries, collect in a container and destroy by burning or burying
  • Cut back the affected plants and graft gradually using resistant varieties like Ruiru 11 or Batian
  • When using a pesticide always wear protective clothing. Follow the instructions on the product label, such as dosage, timing of application, pre-harvest interval, max number of sprays, restricted re-entry interval. Do not empty into drains
  • WHO class II pesticides might not be allowed in local IPM schemes
  • Always consult recent list of registered pesticides (PCPB)
  • Spray using Copper oxychloride based products such as Kocide, Funguran, Cobox 50WP at 50g/20L in water)
  • Spray interval 35 days in dry weather or 60 days in extremely dry weather; WHO Class II (Moderately hazardous); PHI 7 days; FRAC Code M1
  • Copper Oxide + Dithianon (110 g + 30 g)/20 L in water (Such as Cobox 50 WP and Delan 500SC)
  • In very wet weather and during berry expansion stage, it is very important to have a tank mix of copper oxide + dithianon; Spray interval 14 days during wet weather; Copper Oxide: WHO Class II (Moderately hazardous); Dithianon: WHO Class II (Moderately hazardous); PHI 7 days; FRAC Code M1
AUTHOR(S): Maina Gekone (MOALF), Miriam Otipa (KALRO), Rose Kamau (MOALF), Edward Okonjo (Dudutech), Hannah Oduor (MOALF), Martha Kariuki (MOALF)i, Rahab Magotii (KALRO), Cyrus Njoroge (MoALF)

CREATED/UPDATED: July 2013 / September 2014
PRODUCED BY: Plantwise

©CAB International. Published under a CC-BY-SA 4.0 licence.