Document Detail

Aphid Abundance on Cereals in Autumn Predicts Yield Losses Caused by Barley yellow dwarf virus.
MedLine Citation:
PMID:  18944319     Owner:  NLM     Status:  In-Data-Review    
ABSTRACT Barley yellow dwarf virus (BYDV) damage to winter cereals and population dynamics of the aphid Rhopalosiphum padi during fall were monitored in fields during 10 years at various locations in the northern half of France. Logistic regression was used to examine whether a simple risk probability algorithm based only on the autumnal population dynamics of R. padi can accurately predict yield losses caused by BYDV and, therefore, the need for insecticide treatment. Results showed that the area under the curve of the percentage of plants infested by R. padi during autumn was highly significantly related to BYDV yield losses. Then, a cost/benefit analysis was performed to estimate the optimal decision threshold resulting in the lowest annual average costs of BYDV damage and control. A "model use" strategy allowed a reduction in the annual average costs of BYDV disease and control of up to 36% when compared with a "prophylactic spraying" strategy. The optimal decision threshold was highly sensitive to variation in disease prevalence. This property was used to propose an easy way to adapt the model to any production situation through the determination of the most accurate decision threshold.
F Fabre; C A Dedryver; J L Leterrier; M Plantegenest
Related Documents :
1941029 - Comparison of perceived health status and conventional functional evaluation in stable ...
7799769 - Clinical significance of coronary vascular adaptations to exercise training.
18944319 - Aphid abundance on cereals in autumn predicts yield losses caused by barley yellow dwar...
11406489 - Sarcoplasmic reticulum ca(2+) uptake is impaired in coronary smooth muscle distal to co...
1346979 - Effect of alpha-adrenergic blockade with prazosin on large coronary diameter during exe...
17072049 - Moderate exercise decreases nitric oxide exhalation in patients with stable coronary ar...
23493939 - Emotional arousal, blood glucose levels, and memory modulation: three laboratory exerci...
6470159 - Effects of a screening procedure on pica and collateral behaviors.
2523959 - Technetium-99m mag-3 clearances after captopril in experimental renovascular hypertension.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Phytopathology     Volume:  93     ISSN:  0031-949X     ISO Abbreviation:  Phytopathology     Publication Date:  2003 Oct 
Date Detail:
Created Date:  2008-10-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9427222     Medline TA:  Phytopathology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1217-22     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Pseudomonas syringae Responds to the Environment on Leaves by Cell Size Reduction.
Next Document:  Restricted Spread of Tomato spotted wilt virus in Thrips-Resistant Pepper.