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Figure 1
The red dot inside Thailand map indicates Nakhon Si Thammarat province (left hand side) and another red dot inside Nakhon Si Thammarat map indicates Phrom Khiri (right hand side) which is our study site.
Figure 2
The development stage of smart watering system in orchard.
Figure 3
The microcontroller board used in the smart watering system in orchard.
Figure 4
Installation of sensing system on the mangosteen tree.
Figure 5
The installation of automatic watering system and water pipe (6 m long) inside the mangosteen canopy.
Figure 6
The demonstration of the watering inside the mangosteen canopy.
Figure 7
Yellow sticky trap for collecting thrips inside the mangosteen canopy.
Figure 8
The thrips (inside the circles) on the yellow sticky trap.
Figure 9
The size (mm) of a randomly selected thrips from the mangosteen canopy.
Figure 10
The complete process of smart watering system for controlling humidity and thrips inside mangosteen canopy.
Figure 11
The mean (± SE) humidity (%) in ‘control’ and ‘automatic water management system’. ‘*’ indicates the significant difference (p < 0.001).
Figure 12
The mean (± SE) thrips numbers per yellow sticky trap (dual-sided 25 × 20 cm) in ‘control’ and ‘automatic water management system’. ‘*’ indicates the significant difference (p < 0.005).
Figure 13
The correlation between humidity (%) and thrips numbers per yellow sticky trap (dual-sided 25 × 20 cm).