One-string grape moth

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One-string grape moth
Illustration from the Nordisk familjebok

Illustration from the Nordisk familjebok

Systematics
Order : Butterflies (Lepidoptera)
Family : Winder (Tortricidae)
Subfamily : Tortricinae
Tribe : Cochylini
Genre : Eupoecilia
Type : One-string grape moth
Scientific name
Eupoecilia ambiguella
Huebner , 1796

The Monovalent grape ( Eupoecilia ambiguella ) is a butterfly ( moth ) from the family of Winder (Tortricidae).

features

The single-strand grape moth has a body six to seven millimeters in size with a wingspan of 12 to 14 millimeters. The wings are straw yellow with a black-brown transverse band.

distribution

The single-rope grape moth is widespread in Europe. It can also be found in China and Japan .

Way of life

Flight time

The flight time lasts about two to five weeks per generation with a clear flight highlight (in contrast to the crossed grape moth ). The flight, mating and oviposition mainly take place in the evening hours.

  1. Generation ( hayworm ) in late April / early May
  2. Generation ( sour worm ) end of June / mid-July

behavior

The single-strand grape moth needs less warmth than the crossed grape moth and is also found in northern wine-growing areas. It forms two generations per year, which are differentiated according to the caterpillars in hayworm and sourworm.

The pupae of the grape moth overwinter under the bark of the vine or on other host plants. The first generation animals hatch from the pupae at the end of April / beginning of May.

Harmful effect

The single-knot grape moth, like the crossed grape moth, is a pest in viticulture. The larvae of both curlers attack the flowers and grapes and thereby reduce the yield, especially since infected grapes are prone to gray mold rot ( Botrytis cinerea ). The grape moth is often combated with preventive insecticides . Alternatively, the population size of the moths is determined with pheromone traps , whereupon poison is used in a targeted manner. When biological control you bet on the disrupter , also called Verwirrtechnik, and various natural enemies.

swell

Individual evidence

  1. ^ Lepidoptera and some other life forms. Markku Savela, accessed January 22, 2008 .

Web links

Commons : eupoecilia ambiguella ( Eupoecilia ambiguella )  - collection of pictures, videos and audio files