Sweet worm

The third generation of caterpillars of the crossed grape moth is called sweetworm . In contrast, the single-strand grape moth does not form a third generation of caterpillars. The sweet worm only occurs in warm years and under favorable conditions in mid-September / early October and attacks the ripe, sweet berries. The caterpillar of the crossed grape moth is eight to ten millimeters in size, with a yellow head and gray-green to green-brown in color. The infestation can result in major damage through gray mold rot ( Botrytis cinerea ).

See also: hayworm , sourworm

Web links

• www.rebschutzdienst.at

literature

• Jancis Robinson : The Oxford Wine Lexicon . Hallwag, Gräfe and Unzer, Munich 2006, ISBN 978-3-8338-0691-9 .
• Horst Diedrich Mohr (Hrsg.): Color atlas diseases, pests and beneficial insects on the grapevine . Eugen Ulmer, Stuttgart 2005, ISBN 3-8001-4148-5 .