Editors: W.T. Wilsey, C.R. Weeden, and A.M. Shelton
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Cabbage
Flea Beetles (Brassicae oleraceae)
- Life Cycle
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for larger image |
Adults:
The adults are small, hard beetles, have an elongated oval shape with
enlarged hind legs and are about 1/12 inch (2 mm) long by 1/10 inch
(2.5 mm) wide. Two species of flea beetles most commonly found on
crucifers are the cabbage flea beetle and the striped flea beetle.
The cabbage flea beetle is all black with no markings and the striped
flea beetle is black with a crooked yellow stripe on each wing cover.
Adults are easily disturbed and jump quickly, often traveling considerable
distances. |
Click for
larger image
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Eggs:
The very small pale yellow eggs are laid in the soil, on leaves or
in cavities hollowed out in the stem of the plant. The eggs hatch
in about 7 to 14 days. |
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Larvae:
The larvae are small, slender white 'worms' that feed primarily
on roots and underground stems of the plant for about 7 to 10 days.
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Pupae:
The larvae transform to pupae in the soil near the base of the plants
on which they have been feeding. |
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Damage inflicted by flea beetles to
cabbage and crucifers
©All material is protected
by Section 107 of the 1976 copyright law.
Copyright is held by Cornell University.
Maintained by Jason D. Plate. Last updated Mar. 8th, 2007.
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