Hatching Praying Mantis Eggs

This year I decided rather than waging chemical warfare on garden pests I would enlist the help of some Praying Mantids.  I ordered some eggs from Hirts Beneficial Insects via Amazon.  The two Mantis eggs came in a mesh pouch which I have kept in the fridge for 2 weeks.  Since it seeems like we skipped spring and headed right into summer I set the eggs out today in the garden.  Hopefully they'll keep the aphids and borers down to a minimum.  Honestly I am a bit intimidated in sharing the garden with possibly hundreds of full grown Mantids.  Here's hoping they just ignore me while I'm passing through their buffet area.