LOSE LESS, FEED MORE
Plantwise is a CABI-led global initiative.
www.plantwise.org
PEST MANAGEMENT DECISION GUIDE: GREEN AND YELLOW LIST Photo size can be
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Prevention
Monitoring
Direct Control
Direct Control
Restrictions
Plant resistant varieties
e.g.Ruiru 11 or Batian Proper pruning after
harvest to maintain
open penetration and
improve aeration. Remove old stems and
thin out branches since
old stems are more
susceptible than young
ones. Change of cycle after
every 7 years Do a pre rain spray in
the month of February
and September (see
direct control)
Monitor during wet, cold
and humid conditions for
Inspect for brown
black sunken spots
on berries.
Pink spores masses
visible on lesion.
Lesions on young
berry stalk that leads
to shed off.
Black berries
Act 0-4 weeks during
flowering stage.
Strip off diseased
berries, collect in a
container and destroy. Top work gradually
affected plant using
resistant varieties like
Ruiru 11 or Batian
Copper
Oxychloride(Isacop or
Kocide)
Straight copper sprays during low
risk season using fungicide Spray interval 35 days in dry weather
or 60 days in extremely dry weather. WHO II (highly hazardous)
Copper Oxide +
Dithianon (110g +
30g)/20l Knapsack.
In very wet weather and during
berry expansion stage, it is very
important to have a tank mix of
copper Oxide + Dithianon Spray interval 14days during wet
weather. Copper Oxide: WHO II Dithianon: WHO II
Wear protective clothing Follow instructions as per
manufacturer recommendation on
pre harvest interval
Kenya CREATED/UPDATED:July 2013
AU THOR/S:MainaGekone (Ministry of Agriculture), Miriam Otipa (Kenya Agricultural Research Institute), Rose Kamau (Ministry of Agriculture). Sub-County Agriculture Office, P.O. Box 1433-30200, KITALE, Kenya
EDITED BY:Erica Chernoh (CABI-CH) and Melanie Bateman (CABI-CH)
