BERRYSYS -A system approach to biocontrol
in organic and integrated strawberry production
Program for end of project seminar
Presentation of results obtained
Day 1
Time:
Thursday 1 November 2012
Place: Bioforsk, Høgskoleveien 7, Ås, Norway Meeting room: Schøyen
08:00-08:30
Registration, coffee/ tea and snack
08:30-08:45
Welcome to Bioforsk and the Plant Health and Plant Protection Division
By Dr. Arne Hermansen, Director Bioforsk Plant Health and Plant Protection Division
08:45-09:00
Short introduction of participants at the BERRYSYS end of project seminar
09:00-09:15
Short introduction to the BERRYSYS project
By Dr. Ingeborg Klingen, BERRYSYS Project leader
09:15-09:35
The BERRYSYS strawberry field experiment in Brazil, results and conclusions
By Dr. Italo Delalibera Jr. Agricultural Faculty of Sao Paulo University (ESALQ-USP)
09:35-09:55
The BERRYSYS strawberry field experiment in Norway, results and conclusions
By Dr. Nina Trandem Bioforsk Plant Health and Protection Centre
09:55-10:30
Comments and discussion
10:30-10:45
Coffee/tea and snack
10:45-11:00
Influence of sulfur, powdery mildew and the predatory mite Phytoseiulus persimilis
on two-spotted spider mite in strawberry
By Belachew Asalf (PhD student), Nina Trandem, Arne Stensvand, Vitalis W. Vekesa,
Gilberto J. de Moraes, Ingeborg Klingen
11:00-11:15
Effects of fungicides on the production of primary and secondary conidia of a
Brazilian N. floridana isolate
By Thiago Rodrigues Castro (PhD student), Vitalis Wafula Wekesa, Italo Delalibera Jr.,
Ingeborg Klingen.
11:15-11:45
Interaction of two different natural enemies: The effect of a predatory mite on the
development of a fungal epizootic in a spider mite population
By Nina Trandem, Ronny Berdinesen (MSc student), Karin Westrum, Ingeborg Klingen
11:45-12:00
Is sexual attraction of spider mite males to N. floridana killed females important for
the epidemic development of this natural enemy?
By Upendra Ray Battaray (MSc student), Nina Trandem, Karin Westrum, Geir Kjølberg
Knudsen, Ingeborg Klingen
12:00-12:15
Comments and discussion
12:15-13:15
Lunch
13:15-13:30
Effect of different light conditions (quality and cycles) on sporulation of N. floridana
on T. urticae cadavers on whole strawberry plants.
By Maren P. Holthe (MSc student), Karin Westrum, Aruppillai Suthaparan and Ingeborg
Klingen
13:30-13:45
Effect of photopheriod and light intensity on sporulation and capilliconidia formation
germination of Neozygites floridana isolates from Brazil and Norway
By Thiago Rodrigues Castro (PhD student), Vitalis Wafula Wekesa, Rafael Moral,
Clarice Garcia Borges Demétrio, Italo Delalibera Jr., Ingeborg Klingen
13:45-14:00
Effect of light (photoperiod, quality, intensity), temperature, and “diapausing” of T.
urticae on N. floridana resting spore production
By Vanessa Duarte da Silveira (PhD student), Karin Westrum, Italo Delalibera Jr.,
Ingeborg Klingen
14:00-14:15
Comments and discussion
14:15-14:30
Importance of spore discharge (number, distance and direction), cadaver location
and plant leaf species on epidemic development of Neozygites floridana
(Zygomycetes: Neozygitaceae) in spider mite (Acari: Tetranychidae) populations
By Ingeborg Klingen, Silje S. Nilsen (MSc student), Rennan Almeida Da Silva (MSc
student), Italo Delalibera Jr,
14:30-14:45
The effect of host plants on Tetranychus evansi and Tetranychus urticae (Acari:
Tetranychidae) with their fungal pathogen Neozygites floridana (Entomophthorales:
Neozygitaceae)
By Vitalis Wafula Wekesa, S. Vidal, R.A. Silva, E.E.M. Ortega, Ingeborg Klingen, Italo
Delalibera Jr
14:45-15:00
Molecular and morphological work on N. floridana isolates from Norway and Brazil.
By Vanessa Duarte da Silverira, Ingeborg Klingen, Sonja Klemsdal, Italo Delalibera Jr.
15:00-15:15
Comments and discussion
15:15-15:30
Coffee/tea and snack
15:30-15:45
Consequences for growers: suggested Norwegian guidelines on how to reduce mite
pests in (straw)berry crops and enhance natural enemies by a system approach:
Based on knowledge obtained in the project, guidelines on how to reduce pests and
enhance natural enemies by a system approach will be developed.
By Nina Trandem and Dan Christensen
15:45-16:00
Consequences for growers: suggested Brazilian guidelines on how to reduce mite
pests in (straw)berry crops and enhance natural enemies by a system approach:
Based on knowledge obtained in the project, guidelines on how to reduce pests and
enhance natural enemies by a system approach will be developed.
By Italo Delalibera Jr
16:00-16:30
Input to the suggested guidelines from meeting participants
Discussion led by Nina Trandem and Dan Christensen
16:30-16:45
Summing up
By Ingeborg Klingen
17:15
BERRYSYS project participants and associated people leave for a BERRYSYS end of
project celebration dinner at Oscarsborg fort that is located on an island in the Oslo
Fjord http://www.forsvarsbygg.no/festningene/Festningene/Oscarsborg-festning/
Thanks to funding sources:

The Norwegian Foundation for Research Levy on Agricultural Products (FFL)
and The Agricultural Agreement Research Funds (JA)

Brazilian student grants from CNPq and others