Numbers of Oak Procession Butterflies Declined Dramatically to Pre-2013 Levels | Animals


Experts have counted far fewer oak procession butterflies in recent months than they did in the same period last year. This is a 65% decrease. This brings us back to pre-2013 levels, Knowledge Center Eikenprocessionierup reports on Tuesday. As a result, the nuisance caused by caterpillars in 2023 is expected to decrease further.

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