The invasive pest Drosophila suzukii on soft fruit in …...Blackthorn 0 0,5 1 1,5 2 2,5 3 Mean...
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The invasive pest Drosophila suzukii on soft fruit in Sweden Development of sustainable control tools Teun Dekker Dept of Plant Protection Biology, SLU Alnarp SLF April 2019 Monitoring and risk assessment of Drosophila suzukii in soft fruit in Sweden
Transcript of The invasive pest Drosophila suzukii on soft fruit in …...Blackthorn 0 0,5 1 1,5 2 2,5 3 Mean...
The invasive pest Drosophila suzukii on soft fruit in Sweden
Development of sustainable control tools
Teun DekkerDept of Plant Protection Biology, SLU Alnarp
SLF April 2019Monitoring and risk assessment of Drosophila suzukii in soft fruit in Sweden
The invasive pest Drosophila suzukii on soft fruit in Sweden
Development of sustainable control tools
SLF April 2019
020406080
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Num
ber o
f SW
D p
er T
rap
Collection Date
SW SkåneMid SkåneNorth SkåneSE SkåneEast Skåne
0100200300400500600700800900
1000
Mea
n (+
SE) N
umbe
r of S
WD
per
Tr
ap
Collection Date
Elderberry
Blueberry
Blackthorn
00,5
11,5
22,5
3
10-aug-16 17-aug-16 24-aug-16 30-aug-16 06-sep-16 14-sep-16 21-sep-16 27-sep-16 05-okt-16Mea
n (+
SE
) Num
ber
of L
arva
e pe
r Ber
ry
Date of Raspberry Sample
WHAT SORT OF TECHNIQUE IS NEEDED TO SELECTIVELY REMOVE THESE FLIES?
SLF April 2019
SENSORY FORAGING AND OVIPOSITION DECISION IN D. SUZUKII:how important are odors, color, size
0
0,5
1
Berry Blue Melatin1
6
Yellow Blue
b
a
0
50
100
%Eggs in Small %Eggs in Large
Mea
n %
Tot
al E
ggs
Laid
by
Fem
ales
odor color size
Oviposition decisions: how important are odors, color, size
Berry Blue Melatin1
6
Yellow Blue
b
a
0
50
100
%Eggs in Small %Eggs in Large
odor color size
0
1
2
3
4
5
Berry Odour Melatin Odour
DEVELOP A LURE THAT IS HAS A STRONG VISUAL COMPONENT
SLF April 2019
Hallongården, BioInnovate and ISCA Technologies
FURTHER AUGMENTATION OF THE APPLICATION WITH ODORS
0
50
100
150
200
250
Lure ACV H. uvarum
Mea
n by
-cat
ch p
er tr
ap (n
=12)
Bait
FURTHER AUGMENTATION OF THE APPLICATION WITH ODORS
Conclusions1. Visual cues critical
2. SPLAT SWD can suppress based on vision
3. Selective, no beneficial appear attracted
4. In small field harder to manage – side effects
5. Further augmentation with odors to have double knockdown
6. Candidate lures to be tested (field: pending funding)
Understand how SWD orients in the field … then optimally use this for traps and baits
Thanks
Joelle LemmenEmil Dekker
Guillermo RehermannDamiano Moser
Paul Becher
Hallongården, BioInnovate and ISCA Technologies
