Supplementary Figure 3: UV treatment of worms.

To protect the untreated controls on the WorMotel, we use a combination of a piece of folded paper and aluminum foil tent. (a) Paper is used under the aluminum foil because UV rays could bounce off of aluminum foil alone and still reach worms underneath. The folded piece of paper fits on the WorMotel chip to cover as many rows of the chip as desired. (b) Side view shows how the folded piece fits down in between rows of wells to hold it securely in place. (c) View from above the chip of where the aluminum foil sits, folded to fit over the paper. (d) Side view of the placement of the aluminum foil tent. (e) View of the paper and aluminum foil from the open end; the aluminum foil tent fits over the paper loosely so that putting the aluminum foil tent on does not disrupt the paper.