(Diabrotica undecimpunctata) Indiana, USA – August 2019
Native to North America, this photogenic beetle is a feared crop pest that loves to attack cucumbers, pumpkins and melons. It also transmits various plant diseases. Its larvae live underground and feed on the roots of corn and other plants. The corn and soy fields, which are planted in extensive monocultures, certainly aid the spread of this beetle.
These pretty beetles come from Japan and were introduced to North America about one hundred years ago. Due to the lack of natural enemies, they developed into a plague and damage crops and ornamental plants.
The blossom of the purple coneflower (Echinacea purpurea), on which the two love to play, also shows the feeding traces of the beetles.
This metallic shimmering beetle is native to the east of the USA and occurs most frequently in the south. The beetles feed on all kinds of fruits and cause crop damage. The larvae damage, among other things, the roots of vegetables and ornamental plants.