• Aucun résultat trouvé

Modelling the spatial configuration of refuges for a sustainable control of pests: a case study of Bt cotton

N/A
N/A
Protected

Academic year: 2021

Partager "Modelling the spatial configuration of refuges for a sustainable control of pests: a case study of Bt cotton"

Copied!
11
0
0

Texte intégral

Loading

Figure

Fig. 1 Examples of refuge distributions employed in our study: (a) uniform, (b) random, (c) aggregated into four strips, (d) aggregated into two strips
Fig. 2 Pest life cycle.
Table 2 Mean larval density at equilibrium over the whole culti- culti-vated region (d s ), in transgenic fields (d s,Bt ) and in refuges (d s,ref ) as a function of the percentage of refuge (P ref )
Fig. 4 Comparison of strategies under the criterion of cumulated yield losses. Dotted line: currently implemented strategy, i.e
+3

Références

Documents relatifs

The algorithm used overcomes previous limitations in scaffold routing algorithms that constrained them to hybrid single-dual-duplex ( 10, 37) or dual-duplex origami objects

We now turn to the findings for Accomplishment and Achievement predicates. Figures 2–6 show the way in which the speakers within each group mark temporal boundaries in

Simulations based on the observed survival on cotton plants of the three insect types (GA, GA-R and F1) show that the projected rate of resistance evolution is 2 to 4.5 times higher

Specifically, when the concentration of one toxin (here Cry1Ac) declined seasonally, resistance to Bt cotton often occurred rapidly in simula- tions where refuges of non-Bt cotton

This papers based on an empirical case study elaborates on the question: can we see better with the help of an articulation of safety engineering, safety management and social

In order to evaluate the differences in pest management for transgenic cotton - with the cry1Ac gene, such as NuOpal and DP 604 B (both resistant to the Cotton Blue Disease, CBD) -

PROCEEDINGS OF THE WORLD COTT TT TT TT TTON RESEARCH CONFERENCE ON RESEARCH CONFERENCE ON RESEARCH CONFERENCE ON RESEARCH CONFERENCE ON RESEARCH CONFERENCE-3 -3 -3 -3 -3

For all other treat- ments and the control, pollen of the corresponding non-transformed maize variety (Monumental) was fed to the bees. While pure sucrose solution was fed to bees