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What do "small," "medium" and "large" numbers mean?
They refer to how many insects were collected per meter square in a 30 second sample. Small means less than 2 insects; medium indicates 2 to 10 insects, and large suggests greater than 10 insects. |
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Group: Dicot
Family: Apiaceae
(carrot)
Growth Habit: Forb/herb
Duration: Perennial
U.S. Nativity: Native, most of north-eastern U.S.
Natural Enemies Attracted: Large numbers of Chalcidoidea. Medium numbers of Empididae and Orius insidiosus. Small numbers of Cynipoidea, Coccinellidae, Cantharidae and Braconidae.
Pests Attracted: Large numbers of lygus bugs. Medium numbers of thrips, aphids, and root-maggot flies. Small numbers of leafhoppers and weevils.
Bees attracted: Low numbers (less than 1 bee per meter square in a 30 second sample) of sweat bees.
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| Species Notes: Large, round, green flower clusters up to 10 inches across. Plants grew to over 6 feet tall, and bloomed only in their third year of growth. Large palmate leaves grow from a thick, reddish stem. Plants bloomed in early June. This species was the most attractive to natural enemies in the early season, with four times as many natural enemies as in the grass control. |
| About the Plant Species Graph: Average number of beneficial insects collected at each plant species the week before, during, and after peak bloom, for plant species blooming from mid-August through early October (+ standard error). Angelica (Angelica atropurpurea) boxed in red. Bars for natural enemies are in green, bars for bees are in yellow. Bars for native plants are solid and nonnative plants are striped. The black line on the top graph shows the number of natural enemies in grass with no flowering plants (grass control). Plants are listed in order of peak bloom. |
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| Habitat: Includes full sun to partial shade, and average to very wet soils. Naturally occurring in wet areas such as marshes, stream and river banks, wet shores, sedge meadows, and along the edges of tamarack swamps. Also found in openings and wet hollows in mixed woods. May be found in either sunny or shady areas, but is especially common in cold habitats with springs. Cultivation and Management: Can be grown from seed (flowers in third year
to fourth year) or plug material (flowers in second year to third). This plant blooms only once in its life time and then dies so not easy to maintain in a cultivated situation without replanting
Availability: Species is available as seed, plug or container grown material from various native plant nurseries. Michigan Native Plant Producers Association
For more information: USDA-NRCS PLANTS database |
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This fact sheet prepared by: Doug Landis, Anna Fiedler, Department of Entomology, Michigan State University. Please note: The information presented at this web site should be considered a guideline to be adapted for your situation. MSU makes no warranty about the use of the information presented here. Read disclaimer. |
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