Insecta, Lepidoptera, Noctuidae .
Description, Biology, Life Cycle, Damage, Common Names, Images
This moth is typically restricted to the artichoke but also attacks hop, potato and tomato.
- Adults: normally appear from September to November; may also appear in July, and can be observed as late as December.
- Eggs: laid in clusters at the neck of plants, on dry leaves, on the earth nearby or at a certain distance on stakes, bark, etc, at a rate of several hundred or a thousand per female.
Eggs do not hatch before January-February of the following year; In Spain and Sardinia, hatching may occur as early as October.
- Larva: although ready-formed, the caterpillar may remain within the chorion for a certain period. After an active search phase related to egg dispersion, it moves to a leaf, mining the central vein from the apex towards the base, then attacking the peduncle of the flower, up which it climbs to the capitulum.
On reaching full growth, in August-September, it reverses its travel and descends. On reaching the root, it pupates in a superficial cocoon with the exit hole slightly above ground level.
- One generation per year.
Damage is due to ascending caterpillars in stems bearing developed capitula, and/or descending caterpillars on buds.
Infested plants show the aeration holes of galleries along their stems, as well as holes through which abundant black frass is ejected.
Percentage infestation progressively increases from year to year in artichoke plantations, reaching 100 % in the 3rd or 4th year.
- This moth is found throughout Europe and in parts of Asia.
- Dry soil favours the mortality of neonate larvae searching for their host plant.
DE: Gelbe Artischokeneule ES: Taladro de la alcachofa FR: Noctuelle jaune de l'artichaut IT: Nottua minore del carciofo PT: Nóctua amarela da alcachofra GB: Frosted orange moth
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