control techniques used to reduce thrips population are composted organic yard
waste, composted mulch applied under plant canopy, and augmentation of
predatory thrips Franklinothrips orizabensis, F. vespiformis and Leptothrips
mc-cornnelli (Hoddle et al. , 2002; Wee et al. , 1999). The University of California
Statewide Integrated Pest Management Program (2006) suggested integrated pest
management (IPM) for controlling thrips. Such a plan would include the optimal
use of natural enemies, removing all weeds under the canopy to eradicate
alternative hosts, regular pruning of infected trees, use of a fl uorescent yellow
sticky trap, and application of refl ective mulch to disturb host plant orientation of the thrips. Use of fl uorescent yellow sticky traps is limited for monitoring the population of thrips due to the cost of adhesive glues such as the one called tangle
foot (Chu et al. , 2006). Chemical insecticide should be used as a last alternative.
If necessary, monochrotophos, methiocarb or carbosulfan can be applied in mangosteen orchards to control thrips.
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