Abstract
This study on the effectiveness of yellow LED illumination in suppressing damage from fruit-piercing moths was conducted in 2011 and 2012 at a citrus orchard in Minami-Ise, Mie Prefecture, Japan. In 2011, 19 yellow 0.6 W LED light sources were installed to illuminate the area of study, and in 2012, 5 yellow 4.3 W LED light sources of 4.3 W were installed. Results showed that in both 2011 and 2012, the occurrence of fruit with damage from fruit-piercing moths was suppressed in trees that received a maximum illuminance of ≥1 lx of yellow LED light. Although the total annual costs including electricity fees of the two installations was comparable, the 4.3 W yellow LED lights were deemed more effective due to the lower number of units required, reducing the barrier on the cultivation management processes.
