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Preparation of the plot

 Choice of varieties, drainage/irrigation, creation of beds or raised ridges, liming, reasoned fertilization, addition of organic matter, good seeding density (otherwise development of a microclimate favorable to fungi), reflection on crop rotation, in place of sanitizing fallows, trellising/pruning.


Early elimination of inoculum source 

Destroy affected organs and plants as soon as symptoms appear with a clean cut to avoid wounds which are entry points for diseases (do not leave waste at the edge of the field to avoid recontamination), destroy or bury the previous crop and post-harvest weeds and wait for complete decomposition before planting. Regularly make a crawl space in greenhouses (absence of sensitive crops for 2-3 weeks


Cleaning and disinfection of work equipment

Clean agricultural machinery (tractors, harvesting machinery (especially knives), tillage tools, etc.) with plenty of water between each plot and between two passages in plots (or shelters, or even rows of plants). To disinfect, first remove soil and organic residues as disinfectants lose their effectiveness in their presence. Similarly, small tools (secateurs, knives, etc.), nursery equipment (buckets, dimples, crates, grafting boards, etc.), workers' clothes, boots and hands must be disinfected using alcohol or 3% bleach, and it is advisable to install a footbath filled with disinfectant at the entrance to the shelters.

Last change : 07/07/22
paillage et pallissage du concombre
Figure 1