The phrase "a string of devastating" is correct and usable in written English.
It can be used to describe a series of events or situations that are extremely harmful or impactful.
Example: "The report detailed a string of devastating natural disasters that affected the region over the past year."
Alternatives: "a series of catastrophic" or "a chain of destructive".
Last year, there was a string of devastating hurricanes in Florida.
Police in Sicily have recently dealt a string of devastating blows to the Mafia, called the Cosa Nostra.
Hurricane Maria is the third in a string of devastating hurricanes to sweep through the region in recent weeks.
After a string of devastating rulings by a federal district court in the government's landmark antitrust lawsuit, the Microsoft Corporation struck back.
Pressure for action in Europe to reduce fuel use has intensified partly because of recent spikes in already high fuel prices and a string of devastating floods and storms that have been cited as a taste of what may lie ahead if the world's climate is disrupted.
The NFIP's fiscal challenges have accelerated in recent years as a string of devastating storms from Katrina to Sandy shattered its finances and stacked up billions in debt.
At that time, Shorja had suffered a recent string of devastating bombings that had killed merchants and shoppers.
"Pastoral" is filled with a string of quietly devastating scenes in which characters speak their truths in ways that cut to the bone and spookily lay the groundwork for events to follow.
After a string of fires devastated Northern California in October 2017, clean energy trade groups began urging state lawmakers to help PG&E and other utilities cope with the liability that can ensue if their infrastructure sparks a fire.
You only have to open any news page to see the devastating effects of climate change, for example the string of devastating hurricanes that ripped through the Caribbean and U.S. recently.
It has been accepted by Defra, adopted by the Environment Agency and acted upon by the local authorities; UK flood management is changing – unfortunately, the string of devastating floods, including the current disaster in Somerset, suggests that it isn't changing fast enough.
