Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 4 · Episode 21 ·
The Life and Death of the Pine Processionary
Horizon reports on the problem of exterminating the pine processionary caterpillars infestation from the pine forests of Provence, Canada.
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Episode 21 of season 4 of Horizon: “The Life and Death of the Pine Processionary”. Aired 1967-11-21. Watch it online free on ZapFlix.