Strawberry plants

Strawberry plants

What makes strawberry leaves turn brown? Half of my strawberry plants' leaves are still green as can be, and the other half seem to be turning brown. What insects should I be most concerned about eating the fruits of my strawberry plants, and how can I prevent it? (I'm in Northern CA if it matters)
photos of my garden…still a work in progress.

photos of my garden…still a work in progress.

Today’s harvest.

Today’s harvest.

Tree ID?

Tree ID?

Mid-may garden pics

Mid-may garden pics

Chile peppers

Chile peppers

african violet help!

african violet help!