looks like
			 
			 
			
		
		
		the holes are in the center of the leaves 
 
looks like caterpillar damage to me... 
 
they hide in the soil  right beneath the plant 
 
one sure way to tell whether or not its a caterpillar 
 
is to look for the evidence...on the ground  
that being little dark green cylindrical turds 
because the spinach goes thru  
their digestive tract pretty fast. 
		
		
		
		
		
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