Heimish pasta has often been infested for a few reasons. Some of the the Heimish companies produce annually or bi-annualy. Some of them therefore do not put on date codes. Some of them have very poor humid hot storage facilities. Either the insects are found before cooking or while cooking. Lasagna presents a unique problem, as its cooked with the sauce & added product, one can't see the infestation.
Others have opted therefore to purchase only "dated" relatively fresh product not necessarily the heimish brands but with a reliable hashgocha nonetheless. It's advised if you have a questionable lasagna product, to partially par boil first and check the water for infestation.