My understanding is that Penashield is basically like Boracare but pre-mixed. Is it as effective as Boracare for drywood termites? The reason why I'm asking is because I sprayed Penashield on some ants and after they floated around for some time they casually walked away like nothing happened. If Boracare is suppose to kill on contact why doesn't Penashield do the same? Thanks!
Expert response: Neither Boracare no Penashield kills on contact. These products are stop feed products and after consumed can take several days to a could of weeks to kill ants.