black mold of onion

Black mold-This is not a common disease and is most likely to be discovered in or after storage. 

Figure 1. Black mold of onion. Figure 1. Black mold of onion.
Figure 2. Black mold of onion. Figure 2. Black mold of onion.
Figure 3. Black mold of onion. Figure 3. Black mold of onion.
Figure 4. Black mold of onion with outer skin peeled. Figure 4. Black mold of onion with outer skin peeled.
Figure 5. Black mold of onion. Figure 5. Black mold of onion.