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Cydia nigricana (F.)
Laspeyresia nigricana

Insecta, Lepidoptera, Tortricidae .

Pea moth

Description, Biology, Life Cycle, Damage, Common Names, Images


[R]Description
- Adult: 15 mm wingspan. Long antennae. The fore wings of an olive brown colour more or less dark with ochrous yellow sheen present on their sides white and yellow spots in herring-bone pattern (*) .
- Larva: The yellowish white caterpillar measures, once development is complete, 13 to 18 mm long. Light brown head and thoracic plate.

[R]Biology
- Host plants: peas, vetches (Lathyrus pratensis, Lathyrus odoratus), tares (Vicia cracca, Vicia sativa), clover, lentil.
- Adult: looks for sheltered places with dense vegetation. Egg laying occurs at intervals over 5 to 11 days after emergence. The female deposits 1 to 3 eggs on the stipules or the leaflets.
- Egg: embryonic development lasts from 1 to 3 weeks depending on the temperature.
- Larva: the caterpillar goes through a very short wandering stage (1 day) before penetrating a young pod (*) . Larval development lasts 18 to 30 days, then the larva leaves the pod and migrates to the ground where it spins a cocoon containing particles of soil and then hibernates (*) .

[R]Life Cycle
- 1 generation per year.
- Beginning of May, the caterpillar leaves its winter cocoon, pupates in a slight cocoon just below the surface of the ground and pupates. Emergence and moth flight towards pea crops begins at the end of May, coinciding with the start of flowering, and continues until the end of July.

[R]Damage
Each caterpillar damages up to 6 seeds but only 1 or 2 are severely gnawed. However, perforation of the seeds, the presence of caterpillars and stains bring about the rejection consignments of attacked peas, by processors and the packing trade (*) .


[R]Common Names
DE: Erbsenwickler ES: Polilla del guisante FR: Tordeuse du pois IT: Tortrice dei piselli PT: Traša da ervilha GB: Pea moth

[R] Images

  1. Cydia nigricana (F.) Fully grown larva preparing to leave the pod (Coutin R. / OPIE)
  2. Cydia nigricana (F.) Young larva Moving from one seed to another. This damage is not visible externally.
  3. Cydia nigricana (F.) Eggs deposited on a pod (Coutin R. / OPIE)
  4. Cydia nigricana (F.) Resting moth on a pea leaf Coutin R. / OPIE.

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