1. “Chlorphenol” and “dichlorphenol”are shown to be highly toxic to eelworms, both in the active and quiescent stages. Comparisons are made between these chemicals and iodine solutions in this respect.

2. Treatments of clover and teazle seed with “chlorphenol” and iodine solutions are described and it is shown that infesting eelworms may be controlled without affecting germination or subsequent growth.

3. The use of “chlorphenol,” with the addition of a wetting agent is recommended for the hot-water treatment of narcissus bulbs, as an additional insurance for the control of the “wool” stage of bulb eelworm.

4. The phytocidal action of “chlorphenol” is discussed and it is shown that such action is not marked.

5. Some preliminary experiments on the use of “chlorphenol” against potato root eelworm are described.