Aerial Spraying of Neemazal®-T/S Against the Forest Cockchafer (Melolontha hippocastani, Col.: Scarabaeidae) in South-West Germany: The Effects of Two Field Trials Performed in 2007 and 2008 on Local Populations

2015 ◽  
Vol 122 (4) ◽  
pp. 169-182 ◽  
Author(s):  
Eiko Wagenhoff ◽  
Rainer Blum ◽  
Lars Henke ◽  
Horst Delb
2021 ◽  
Vol 568 ◽  
pp. 117011
Author(s):  
Damaris Montano ◽  
Marta Gasparrini ◽  
Axel Gerdes ◽  
Giovanna Della Porta ◽  
Richard Albert

2013 ◽  
Vol 71 (Suppl 3) ◽  
pp. 626.2-626
Author(s):  
F. Riewerts ◽  
J.C. Henes ◽  
C. Deuter ◽  
H.-M. Lorenz ◽  
F. Mackensen ◽  
...  

2003 ◽  
Vol 54 (10) ◽  
pp. 957 ◽  
Author(s):  
A. G. Condon ◽  
F. Giunta

Transient waterlogging during winter and spring reduces wheat yield in many parts of southern Australia. Yield reductions from waterlogging are associated with reduced production and survival of tillers, fewer and smaller fertile tillers, and smaller grain size. Under favourable conditions, wheats that have the tiller-inhibition ('tin') gene produce a lower total number of tillers but a higher proportion of large, productive tillers and larger grains than wheats without this gene. These characteristics of restricted-tillering wheat may contribute to improved yield under transient waterlogging. We compared the growth and yield of the commercial variety Bodallin and 2 Bodallin backcross derivatives containing the 'tin' gene in 8 field trials grown on shallow, duplex soils in 1995 and 1996 at 3 locations in the south-west of Western Australia. Trials were sown at standard (1995) and standard and high (1996) seeding rates. Trial-mean yield ranged from 0.5 to 4.7 t/ha, depending on the occurrence and severity of waterlogging before anthesis and of soil water deficit before and after anthesis. Grain yield of the restricted-tillering (RT) lines averaged only c. 80% of Bodallin. At all sites and seeding rates the RT lines had fewer spikes per m2 (45% fewer, on average) but averaged 44% more grains per spike. In 1996 only, grain weight of the RT lines was 6% greater than of Bodallin. There was no evidence that the relative yield of the RT lines was greater at waterlogged sites than at other sites. Waterlogging reduced the number of fertile spikes of RT lines and of Bodallin to the same relative extent and differences in grains per spike and grain size had little effect on relative yields. Even though harvest index of the RT lines was slightly elevated in some environments, biomass production of the RT lines was low in all environments. We conclude that wheats with the 'tin' gene are unlikely to have a yield advantage under transient waterlogging unless their biomass production can match that of more freely tillering wheats.


2015 ◽  
Vol 532 ◽  
pp. 360-367 ◽  
Author(s):  
Ferry Schiperski ◽  
Johannes Zirlewagen ◽  
Olaf Hillebrand ◽  
Karsten Nödler ◽  
Tobias Licha ◽  
...  

2009 ◽  
Vol 63 (12) ◽  
pp. 1440-1443 ◽  
Author(s):  
G Nagel ◽  
M Wabitsch ◽  
C Galm ◽  
S Berg ◽  
S Brandstetter ◽  
...  

2011 ◽  
Vol 8 (6) ◽  
pp. 10739-10780
Author(s):  
V. Ruiz-Villanueva ◽  
M. Borga ◽  
D. Zoccatelli ◽  
L. Marchi ◽  
E. Gaume ◽  
...  

Abstract. The 2 June 2008 flood-producing storm on the Starzel river basin in South-West Germany is examined as a prototype for organized convective systems that dominate the upper tail of the precipitation frequency distribution and are likely responsible for the flash flood peaks in this region. The availability of high-resolution rainfall estimates from radar observations and a rain gauge network, together with indirect peak discharge estimates from a detailed post-event survey, provides the opportunity to study the hydrometeorological and hydrological mechanisms associated with this extreme storm and the ensuing flood. Radar-derived rainfall, streamgauge data and indirect estimates of peak discharges are used along with a distributed hydrologic model to reconstruct hydrographs at multiple locations. The influence of storm structure, evolution and motion on the modeled flood hydrograph is examined by using the "spatial moments of catchment rainfall" (Zoccatelli et al., 2011). It is shown that downbasin storm motion had a noticeable impact on flood peak magnitude. Small runoff ratios (less than 20%) characterized the runoff response. The flood response can be reasonably well reproduced with the distributed hydrological model, using high resolution rainfall observations and model parameters calibrated at a river section which includes most of the area impacted by the storm.


2008 ◽  
Vol 13 (8) ◽  
pp. 3-4
Author(s):  
G Pfaff ◽  
B Mezger ◽  
S Santibanez ◽  
U Hoffmann ◽  
S Maassen ◽  
...  
Keyword(s):  

Binary file ES_Abstracts_Final_ECDC.txt matches


1999 ◽  
Vol 112 (2) ◽  
pp. 136-138 ◽  
Author(s):  
G. Bäßler ◽  
R. Förster ◽  
B. Eberspächer ◽  
C. Karl ◽  
M. Kugler ◽  
...  

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