Arduino Solar Tracker

Servo myservo;  // create servo object to control a servo 
                // a maximum of eight servo objects can be created

Naming an instance to match it's purpose is more useful. If the servo is for pan or tilt, name it accordingly.

I notice that you don't have any variables named myint or myfloat or mybyte or mychar, so myservo needs to go, too.

   if  (LSright < LSleft&& pos>0) // while right is less than left pos goes down 1

Consistent indenting is good. Consistent spacing is good.