Efficacy of a lignin-encapsulated nootkatone formulation for control of two-spotted spider mites (Tetranychus urticae)

Nootkatone is a sesquiterpene ketone found in several plant species including vetiver, Alaskan yellow cedar and grapefruit. The compound has demonstrated repellent as well as pesticidal effects on ticks and other insect pests. As a product commonly used in perfumes and as a food flavoring additive, it has potential as an organic alternative or rotational product in pest management programs. A lignin-encapsulated formulation of nootkatone was developed for use against ticks to slow the release rate of the oil and decrease its phytotoxic  properties. This nootkatone formulation was tested against two-spotted spider mite adults and eggs in order to determine whether the product has potential for use against mites in vegetable and ornamental production.