Flaw in this statement?

ch20010444

"when temperatures drop just below freezing, the plant pathogen PS produces certain proteins that force ice to form on the surface of a plant. The damage caused by the freezing process releases plant nutrients that are then available to the PS bacteria. Although this fruit grove contains PS bacteria, temperatures have not dropped below below freezing at any point during the last 30days, so there should be no concern over PS-related damage during that period."

ch20010444

dare to look at it? lol