How to Manage Pests

Pests in Gardens and Landscapes

Marigold—Tagetes spp.

Family Asteraceae (Sunflower family)

Plant Identification

Marigolds are either annual or perennial plants that do well in edgings, borders, or pots. Leaves are finely divided and often have a strong scent. Flowers can bloom from early summer into winter and attract butterflies. Color varies and includes yellow, orange, brownish-red, and maroon.

Optimum conditions for growth

Marigolds do well in areas with full sun. They require moderate to regular water, however avoid overhead sprinkling on taller plants as stems can break from the weight of the water. Extend the blooming period by pruning off old flowers.

Yellow blossom of marigold
Yellow blossom of marigold

Pests and disorders of Tagetes spp.


  • Whiteflies
    • Greenhouse whitefly
    • Silverleaf whitefly
    • Sweetpotato whitefly


Environmental disorders



Statewide IPM Program, Agriculture and Natural Resources, University of California
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