How to recognize the silver Y moth 

The silver Y moth is brown moth that is often difficult to findIts size varies between 40 and 50 mm. In rest, the wings are positioned upwards in a roof-like position. The front wing is gray-brown and has a characteristic yellow-white spot. The moths fly both during the day and at night. Caterpillars are mainly active during in the evening. The white-green eggs are deposited on the underside of the leaves. Caterpillars are 40 mm long and their body narrows towards the front. Near the head two dark stripes can be seen. Caterpillars are light green with narrow with back stripes alongside both sides. Along the stigmata a slightly wider white stripe is visible. Pupation happens in white, loose web on the leaf. The silver Y moth is migratory, but sometimes overwinters as caterpillar or pupae in greenhouses. 

Silver Y moth Autographa gamma
Silver Y moth
Silver Y moth caterpillar Autographa gamma
Silver Y moth caterpillar

Silver Y moth damage and distribution 

The caterpillars are voracious and chew irregular holes in leaves. Large stages can eat entire leaves and petioles. The caterpillars are mostly active during the evening. 

Silver Y moth life cycle

  • about 250 eggs per female
  • caterpillars occur from May until October
  • pupates in silver-grey cocoon
  • several generations per year

Silver Y moth host plants

  • strawberry
  • egg plant
  • tomato
  • herbaceous plants, such as clover and blackberry
Our products against

Silver Y moth


Effective against
– Whitefly and thrips
– Spider mite
– Caterpillars

Trichogramma brassicae-150x150


Effective against
– Many different caterpillars

Common caterpillar and moth species

Carnation tortrix
Box tree
European pepper moth
Silver Y
Bright-line brown-eye

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