Kelly, I overwatered with 50% MG and um... killed 24 tomato plants. I used the red Tomato MG. I know that's not strawberries, but sounds sort of related to me.
I do agree with Star. Strawberries do not like to be overwatered. Last year's record rainfalls did our strawberries in. I fixed that problem this year though.
I planted 3 Texas Wild tomato plants in their place
They're both small red fruits.