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Sticker of Strawberry blossom weevil
Bug card No. 4181 of 4,939

Strawberry blossom weevil

Anthonomus rubi
Eats: PlantsBeetlesGardens and meadows6 legs

The strawberry blossom weevil is a tiny black beetle with a long snout and a coat of fine grey hairs. It is smaller than a grain of rice. Strawberry farmers know it well, because it can ruin a whole crop of berries.

Lives in
Europe and western Asia, and now also in western Canada and the USA, in strawberry and raspberry fields
Length
2 to 4 mm (0.08 to 0.16 in)
Top speed
about 0.08 km/h (0.05 mph)
On foot, estimate
Can it hurt you?
Harmless
Harmless to people. It is a big problem for strawberry and raspberry growers.
What does it eat?
The grown-ups nibble strawberry leaves. The baby grows up inside a strawberry flower bud and eats it from the inside.
For real!Photo of Strawberry blossom weevil
Picture by James K. Lindsey. CC BY-SA 3.0, via Wikimedia Commons.

How big is it?

How long is it?

Strawberry blossom weevil about 4 mm long (0.16 in)A grain of rice about 6 mm (0.24 in)
small enough to sit on your fingernailcould run across a dinner table in 45 seconds

How big is Strawberry blossom weevil compared to YOU?

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How fast is it?

cool stuff

Fun facts

1

The mother lays one egg inside each closed flower bud and then bites the stalk so the bud falls over.

2

The white baby grows inside the wilting bud and eats it.

3

In some places it can destroy up to 80 out of every 100 strawberries.

4

It finds strawberry plants by their smell. The boys then give off their own smell that calls more weevils.

5

In 2019 it was found in North America for the first time, in Canada.

you asked

Most asked questions about Strawberry blossom weevil

?Why are there no berries on my strawberry plants?

One reason can be the strawberry blossom weevil. It bites through the flower buds so they hang down and never become berries.

?How big is the strawberry blossom weevil?

Only 2 to 4 millimetres long, smaller than a grain of rice.

For bug experts

Scientific name
Anthonomus rubi
Group
Beetles
Family
Curculionidae
Classification
Insecta > Coleoptera > Curculionidae
Lives on
Europe, Asia, North America
Also known as
Strawberry-blossom weevil

Where the facts come from

  1. Anthonomus rubi (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
  2. Picture by James K. Lindsey. CC BY-SA 3.0, Wikimedia Commons. The sticker of this bug is drawn from this picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at [email protected] and we will fix it.

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