recent research on invasive weeds at the european ... · ebcl scientists marie-claude bon mol....
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Recent Research on Invasive Weeds at the European Biological Control Laboratory (EBCL)
United States Department of AgricultureAgricultural Research ServiceMontferrier-sur-Lez, France
Lincoln Smith, Marie-Claude Bon, Gaylord Desurmont, Javid Kashefi,René Sforza, Mélanie Tannières, Massimo Cristofaro, Francesca Marini,
John Goolsby, Brian Rector, Biljana Vidovic, Daniel E. Winkler, Patrick J. Moran
Solutions from Nature
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EBCL labs in France and Greece
Other USDA-supported labs:Argentina – South American Biological Control Laboratory (FuEDEI)Australia – Australian Biological Control Laboratory China - Sino-American Biocontrol Lab
CABI – Delemont, Switzerland
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OBCL Newsletter
DOWNLOAD AT:http://www.ars-ebcl.org
Overseas Biological Control Laboratories
Australian Biological Control Laboratory (ABCL), Australia
European Biological Control Laboratory (EBCL), France
Foundation for the Study of Invasive Species (FuEDEI), Argentina
Sino-American Biocontrol Laboratory (SinoABL), China
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European Biological Control Laboratory
Quarantine for insects and pathogens
Field garden experimentsGlasshouses
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Weed TargetsFrench broom (Genista monspessulana)Giant reed (Arundo donax)Hoary cress (Lepidium draba) Medusahead (Taeniatherum caput-medusae)Yellow starthistle (Centaurea solstitialis)Also support:African wire grass (Ventenata dubia)Russian thistle (Salsola tragus)Saltcedar (Tamarix spp.) Scotch thistle (Onopordum spp.) Swallow-worts (Vincetoxicum spp.)? Sahara mustard (Brassica tournefortii)
Solutions from Nature
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French Broom (Genista monspessulana)
http://plants.usda.gov
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Chemical ecology of psyllid Arytinnis hakani (Gaylord Desurmont)
Chloé Descombe
French broomGenista monspessulana
Specificity & impact of weevil Lepidapion argentatum (René Sforza)
www.gonhs.org/Lepidapionargentatum.htm
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French broom killed by psyllid (Arytinnis hakani) in Australia
4 Sept. 2009, A. Sheppard, CSIRO
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© Br. Alfred Brousseau, Saint Mary's College
French Broom Psyllid(Arytinnis hakani)
Kills Fr. broom in Australia.27 lupine species have been tested.Can develop on some lupines.Field testing in France.
Laboratory choice tests: Lupines vs. French broom
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Develops in seeds ... T. Thomann
and in stem galls
René Sforza (EBCL), Thierry Thomann (CSIRO)
French Broom WeevilLepidapion argentatum
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seed
s / p
od
Exit holepresent
Larva presentUninfested
viable
aborted
consumed
40% reduction of viable seed
Impact of Lepidapion argentatum on French broomseed production
Solutions from NatureR. Sforza
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Presence of galls on 6 Broom species, and 2 lupine species
Ste
ms
with
gal
ls(%
)
6 Brooms 2 Lupines Thermopsis Astragalus
Solutions from Nature
Host Plant Specificity of Lepidapion argentatum on 32 plant species
R. Sforza
No-Choice Oviposition Tests
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Giant Reed (Arundo donax)
Glen county CDFA gall wasp release site
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Biological Control Agents for ArundoStem tip-galling wasp
Tetramesa romanaadventive in southern CA; Released in TX in 2007;
20% decrease biomass in 5 yrs
Root- and stem-feeding armored scale
Rhizaspidiotus donacis -Released in TX, CA
Goolsby et al. 2015. Biocontrol Science and Technology
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Shipments of Arundo Agents
Javid Kashefi, Alex ChaskopoulouJohn Goolsby, Madeline Marshall (ARS, Edinburg, TX)
Leaf sheath minerLasioptera donacis
Petition approved
Oviposition by single females to establish nematode-free infestations for shipment to Texas
Tripius gyraloura, 1) Cluster of parasitic juveniles (arrow) in a dissected female fly; 2) Free-living infective female. Scale-bars: 1) 144 µm; 20 39 µm.
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0
1
2
3
4
5
6
January February March April May June July August September October November December
Aver
age
Cryp
tone
vra
adul
ts (m
ean
+ SE
)
Month
Average Cryptonevra sp. adults caught on sticky traps (7 sites)
Arundo Shoot Fly
Gaylord DesurmontJohn Goolsby, (ARS, Edinburg, TX)
Arundo flyCryptonevra sp.
• Collection of flies from Phragmites and Arundo
• Seasonal abundance• Potential efficacy• Integrative taxonomy
(morphology & DNA)
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Medusahead(Taeniatherum caput-medusae)
Frederiksen S. 1986. Revision of Taeniatherum (Poaceae). Nordic Journal of Botany 6(4):389-397.
T. caput-medusae T. asperum T. crinitum
R. Sforza, B.G. Rector, S. Novak
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Eriophyid mite on medusahead
Brian Rector, BBCA & cooperators
Aculodes altamurgiensis
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Other Prospective Agents of Medusahead
Midge? But so far, only Eulophid parasitoids have been reared out
Francesca Marini & Massimo Cristofaro (BBCA), Javid Kashefi (EBCL)
Moth larva inside leaf
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Hoary Cress: Lepidium draba
Root Galling Weevil Ceutorhynchus assimilis
One host race strictly associated with L. draba,distributed in Southern France/Northern Spain
1
98
73
29(19)
30(1)28(1)
27(9)26(1) 25(1)
24(1)23(3)
22(3)
21 (15)
20(1)31(1)
19(5)18(1)17(1)
16(7)
15(1)14(4)
13(5)
12(6)
11(2)10(3)
(6)
6(1) (1)5(1)
4 (5)(1) 2(1) (1)
0.0005 substitutions/site
96, 88
61, 57
96, 90
86, -
60, -
61
59, 51
53, -
59, -
65, 60
97, 95
98, 98
64, 6663, 59
59, -
62, 61
Molecular Geneticsdistinguished aCryptic Species
Fumanal et al., 2005 Journal of Biotechnology 19:15-19.Marie-Claude Bon, EBCL
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Yellow StarthistleCentaurea solstitalis
J. DiTomaso, UC Davis
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Yellow starthistle seedhead weevil, Larinus filiformis
Multiplied weevil from Bulgaria for future testing.
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Russian thistleSalsola australis Salsola collinaSalsola gobicolaSalsola tragus Salsola ryaniiSalsola paulsenii[not S. kali]
Salsola types
Hrusa & Gaskin. 2008. Madroño 55(2) 113–131.
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Russian thistle (Salsola tragus)
BBCA conducting field host specificity test in Italy.
Established colony at EBCL from Greece.
Eriophyid miteAceria salsolae
L. Smith (EBCL) F. Marini, M. Crisotofaro (BBCA)
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Sahara mustard (Brassica tournefortii)
ü first identified in 1927 in the Coachella Valley, Californiaü It is believed that the species was accidently introduced with the importation of date palms
from the Middle Eastü Likely origin from Morocco or Jordan (ddRADseq)
Daniel Winkler (University of California, Irvine)
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AlexandraChaskopoulou
mosquitoes &sand flies
EBCL scientists
Marie-Claude Bonmol. geneticsInsects leader
René SforzaentomologyWeeds leader
[vacant]entomology
Javid Kashefiexploration
Gaylord Desurmontquarantine / entomology(chemical ecology)
Mélanie Tannièresmicrobiology
Dawn Gundersen-RindalDirector, [email protected]
Thes
salo
niki
G
reec
eFranck HérardEntomologyRetired 12/17