it does smell really bad so you both could be right they might not like it, i had a glass ful of it on my counter and a frnd thought it was a dank beer he learnt quick once he got the glass under his nose.......good times.....maybe theres something in it the bug dont really like
true,, seaweed is high in nitrogen,, but the seaweed smell and taste will keep critters off and keep them from munching down or laying eggs.... ive never tried spraying infested plants,, i never let my girls get that way... i just thought i would mention it in case next time around he wanted to try that to beat the problem before it even exists