I have been using pyola for years. This year we have bad outbreak of cicada and it works great to kill them and protect our plants and trees.
This spring I had a lot of small caterpillars on my fruit trees. I sprayed them with a mixture of Pyola and Oil-Away. It worked wonders! I sprayed their tents and that was the end of the caterpillars! I highly recommend this product. FYI it did seem to irritate my skin where I accidentally dropped some of the concentrate on my hand. I washed it right away with soap and water. I recommend wearing gloves and not to spray when it is windy out.
I like Pyola
I used Pyola a couple of years ago on a infestation of blister bugs that attacked my tomato plants. I sprayed it directly on the bugs and they fell that day and didn't bother the plants again. I feel comforted that it is safe to use and works. It still had some potency after the expiration date.