Thrips Infestation on Ficus Tree: Identification and Treatment

Katharine and Cooper's 8-foot ficus tree showed crumpled, pea-pod-like leaves with tiny white and black bugs – classic signs of thrips.

Background

Ficus trees from big-box stores often come from growers who don't treat for thrips, leading to widespread infestations.

Treatment Plan

1. Prune heavily: Remove the last several inches of all stems where thrips concentrate in new growth.
2. Chemical options (if acceptable):
   • Malathion – effective but use in well-ventilated areas only
   • Fine horticultural oil spray – coat all leaf and stem surfaces thoroughly
3. Repeat treatments as needed for complete coverage.

Early, aggressive action gives the best chance of saving the tree.