lettuce drop
Figure 1. Lettuce drop. Note two plants in foreground that have collapsed.
Figure 2. Lettuce drop. Note plant in foreground in process of collapse. 
Figure 3. Lettuce drop. 
Figure 4. Lettuce drop. 
Figure 5. Sclerotia from lettuce plant affected by drop. 
Figure 6. Sclerotia from lettuce plant affected by drop.