The Pueblo Depot Activity here and the Longhorn Army Ammunition Plant near Marshall, Texas, are the preferred sites for destroying Pershing missiles under the INF treaty, the Army announced Thursday.

The Army advised the governors of both states of its choices for handling deactivation of missiles under the Intermediate-range Nuclear Forces treaty ratified last month by the United States and the Soviet Union.The Army already has permission from the Texas Environmental Regulatory Agency to eliminate rocket motors at Longhorn and could begin work in August.

Colorado officials are awaiting results of a recent test elimination before deciding on the Army's request for a permit to burn motors at Pueblo.