If you think you have found a fungal or bacterial infection on your plant, go to the appendix (9-B) to see if you can confirm and identify the infection. If it is indeed an (minor) infection, the experiment can still continue if you follow these steps: Firstly, document where the infection is: on only one leaf, on multiple leaves, on the stem, or on the roots. Take note of the infection and its progress in your manual measurement file. Secondly, try to contain the infection so you can continue the experiment. If it is an infection on one or more leaves, those leaves need to be removed from the plant. Thirdly, the inside of the kit needs to be cleaned with a standard cleaning product. Make sure that you screen the plant often, preferably daily, for the next two weeks to see if the infection has been contained or is still spreading further. When you find additional infected leaves, remove them as well. Do not forget to document this as well. At the end of the experiment, even if the infection was easily contained, the entire kit needs to be cleaned carefully.