S4·E21 The Life and Death of the Pine Processionary
Aired November 21, 1967
Synopsis
Horizon reports on the problem of exterminating the pine processionary caterpillars infestation from the pine forests of Provence, Canada.
Aired November 21, 1967
Horizon reports on the problem of exterminating the pine processionary caterpillars infestation from the pine forests of Provence, Canada.