Evaluation of chemicals and botanicals on the damage caused by coconut perianth mite, Aceria guerreronis Keifer

The chemicals viz., carbosulfan and monocrotophos were tested as root feeding method. The chemicals dicofol and botanicals; garlic + neem oil and neem oil alone were applied as direct spray on the nuts. The % damage of young nuts (four months old bunches) was observed. The damage level on young nuts was minimum in carbosulfan (18.4%) and garlic + neem oil (32.1%) treated trees after three rounds of treatments. The number of undamaged harvested nuts were high in the carbosulfan and garlic + neem oil treated trees and harbours 41.4% and 32.4% grade 1 nuts, respectively during III harvest. In the unsprayed trees, no grade 1 nuts was observed at third harvest.