Fungus gnats: Triggered by: Wet soil Eggs: In the top layer of moist potting mix Spider mites: (M Triggered by: Hot, dry air Eggs: On leaf undersides, in webbing Mealybugs: Triggered by: Warm, stable indoor temps Eggs: In cottony clusters on stems leaf nodes Aphids: Triggered by: New, soft growth Eggs: On stems and leaf undersides Thrips: Triggered by: Bright light young foliage Eggs: Inserted inside leaf tissue Scale: Triggered by: Warm temps stable environment Eggs: Under the adult female's sh