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Symptoms of Choanephora cucurbitacearum on Solanaceae

 

 

  • Organs attacked :
Leaves flowers
Fruits Stems

 

  • Symptoms :
    • Colonization of senescent petals and destruction of whole flowers which rot, brown or even blacken.
    • Abortion of young fruits; moist lesions on fruits (initiating from senescent sepals or remnants of floral parts, wounds) rapidly evolving into moist and soft rot (figures 1 and 2 - aubergine) (figures 6 and 7 - pepper).
    • Damp, dark green to brown lesions on stems (in the cortex in particular) causing leaf wilting and drying.
    • Wet damage on leaflets and on leaves evolving into rot (figures 3 to 5 - aubergine)(figure 8 - pepper).
    • Rotting and destruction of young shoots.
  • Signs : a blackish and airy mold more or less covers the rotten fabrics. Fruiting bodies in the form of tiny black pinheads are visible.
  • Possible confusion : rots with Mucorales ( Rhizopus , Mucor ), Botrytis

  

  • Production areas affected :
Guyana
Last change : 07/21/22
Choanephora-Aubergine4
Figure 1
choanephora-aubergine-fruit2
Figure 2
Choanephora-Aubergine3
Figure 3
Choanephora-Piment1
Figure 4
Choanephora_Piment_Feuille
Figure 5