Though nearly invisible, thrips can cause enormous damage to gladiolus. Here’s how to identify and control them, with thanks to the experts at the Clemson Extension Home and Garden Information Center (hgic.clemson.edu), the University …

Mar 29, 2025 · Gladiolus thrips are one of the most damaging pests of gladiolus. The gladiolus thrips feeds on the corms, stems, leaves and flowers of gladiolus. They overwinter readily on corms dug up and stored indoors, or they also overwinter on corms left in the soil.

Nov 3, 2022 · One of the most serious pests that is likely to attack your gladioli are gladiolus thrips (Taeniothrips simplex). The best control for gladiolus thrips is to take preventive measures to keep from having them at all. If you plant pest-free corms, you will most likely grow pest-free glads.

Jul 9, 2024 · For flower thrips on gladiolus: Mix 1 tablespoon Lysol household cleaner with 1-gallon water. Soak gladiolus corms in the liquid and plant while still wet to prevent thrips. You can plant various flowers to attract beneficial insects that are natural predators of thrips.

Gladiolus thrips cause deformed buds that may not open and damaged flower petals. This pest is brought into the garden on infested bulbs. Gladiolus thrips can maintain a population outdoors during the summer but cannot survive temperatures below 50° F.

Greenhouse thrips are widespread on most greenhouse-grown crops but are also seen attacking outdoor plants in warm weather. Gladiolus thrips are mainly seen on gladiolus flowers and corms.

Jul 16, 2022 · Gladiolus thrips, Thrips simplex, will infest your gladiolus, irises, and freesias with gusto. They are tiny, thin, blackish-brown insects, under two millimeters long, that hide inside the leaf sheaths and flower buds.

Feb 20, 2023 · Gladiolus thrips are tiny insects with feather-like wings, an unusual design in the insect world. They have rasping mouthparts that cause feeding damage characterized as elongated stippling on leaves and flowers, eventually making plant materials appear washed out.

3 days ago · The gladiolus thrips most seriously damages gladioli, but is also a pest of iris, carnation, lily, narcissus, freesia, amaryllis, tigerflower, poker plant, tomato, begonia, primula, snapdragon, chrysanthemum, and geranium.

Gladiolus thrips are believed to be an introduced pest from Africa, where gladioli are native. The thrips are brought into previously uninfested fields or greenhouses on infested corms. These rather sluggish thrips can overwinter at any stage on …