| 13. Arable  landArable land is usually ploughed and fertilized  every year, but when this happens on a low frequency it may be suitable for  some butterfly species.
  Potato  field, Gorinchem. Only small white (Pieris  rapae)
 will be seen here sometime. 
            Photograph: Frits Bink ©.
  Red  clover field, Friedboesch, Luxemburg, 23 September 2011.
 Clouded pale yellow (Colias hyale) thrives here. 
Photograph: Rosita Moenen ©.
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