CDFA Integrated Pest Management (IPM) Practice Test

Question: 1 / 400

What is the cinnabar moth a biological control for?

Yellow starthistle

Spotted knapweed

Tansy ragwort

The cinnabar moth serves as a biological control agent specifically for tansy ragwort. This moth has a relationship with the plant where its larvae feed on the leaves of tansy ragwort, helping to reduce its growth and proliferation. Tansy ragwort is a highly invasive plant that can outcompete native vegetation and is toxic to livestock, making effective control measures essential.

Although the cinnabar moth has been studied in relation to other plants, such as yellow starthistle and spotted knapweed, its primary and most recognized target in biological control efforts has been tansy ragwort. This specificity makes the answer accurate, as it reflects the established role of the cinnabar moth in managing this particular invasive species.

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