25 Aug 2020 --- US-based Cultiva has launched an elastic biofilm positioned to help growers protect crops from the effects of excessive water and heat, as well as from smoke damage caused by wildfires. The spray ingredient, called Parka, uses food-grade biofilm technology, known as SureSeal. Parks is a non-pesticide product designed to strengthen the crops’ natural cuticle – their first line of defense. The product represents a new tool for industry in combating more extreme weather conditions, leading to larger yields and a longer shelf life, according to the company.