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Asian ladybug

asian lady beetle (GB)

The insect, also known as the multi-colored ladybird or harlequin ladybird (Latin: Harmonia axyridis), belongs to the family of ladybug, The second name is derived from the extremely variable coloring of the cover wings in many variations between light yellow and dark red. For wintering, they often come together in large groups. The (mostly 19) black spots can be so pronounced that it appears as if a black beetle has red dots. It is larger than the European species and therefore represents for them in connection with the ecological Balance is a serious threat. The beetle originally comes from China and Japan and was first used in the United States and later in Europe as the late 20th century Nützling used for biological pest control against, for example, the soybean aphid. It was only later that the insect turned out to be a particular problem in viticulture. It falls into the vineyards in late summer and feeds at the time of the vintage grapes damaged by sugar.

Asian ladybug - beetle and life cycle

When he's in the Press gets, his yellow-orange hemolymph (body fluid) goes into the mash or grape about what can lead to significant losses in wine quality. This makes the wine uncomfortable astringent and as bitter paprika-like and nutty designated aroma. In the northeast of the United States and in Canada there were first problems during the harvest in 2001. In the meantime, it is represented on the entire east coast and can also be found in middle US states. The first specimen in Europe was also found in Belgium in 2001. Since then, the species has spread rapidly and there are fears that other (useful) ladybird species will be displaced. Since 2002 it has been spotted in large numbers in western Germany and since 2004 it has also been found in parts of France, Italy and southern England. There is no effective control yet. See also under Vine enemies,

Asian ladybugs eat aphids

Ladybug: By Andreas Trepte - Own work, CC BY-SA 2.5 , Link
Ladybug larvae: Von Pudding4brains - Own work, public domain , Link
Asian ladybug: Image by Myriam Zilles from Pixabay

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