Organic soil amendments. Adding large quantities of organic amendments such as animal manure to the soil has been found to stimulate growth of soil organisms that may compete with and suppress nematodes. This technique has not yet been verified on coffee in Hawaii. Use of coffee cherry pulp as a soil amendment is being evaluated. Nematicides No nematicide is currently registered for use in coffee.
Research indicates that nematicides are relatively ineffective in older coffee plantings.
Because nematicides are expensive and highly toxic, other options for nematode management are preferable. Also, registration is an expensive process, and agrichemical companies are not likely to see much profit potential in pursuing approval of a product for use in coffee in Hawaii. Prevention and Avoidance Don't transplant volunteer coffee seedlings. Avoid moving farm machinery from infested to non-infested fields. Don't irrigate indiscriminately.