Manila, Jan. 16 -- Dioceses in the Cagayan Valley region are looking to plant more than a million trees in 500 days.

The initiative, dubbed as "Missio 500", aims to plant 500 trees per day in the Archdiocese of Tuguegarao and each in its suffragans - the dioceses of Ilagan and Bayombong, the vicariate of Tabuk, and the prelature of Batanes.

The Catholic Bishops' Conference of the Philippines (CBCP) said on its news website on Friday that the program's target is to plant at least 1.25 million trees by early next year.

The ecological project was launched on Thursday before the ceremony for the imposition of the sacred pallium on Tuguegarao Archbishop Ricardo Baccay.

Baccay said the launch was scheduled during the occasion "as a symbol of ...