I got the lacewing lavae for aphid control because it says in the brochure that they are for use in both greenhouses & in the garden. But to be honest i was pretty disappointed - they arent really suitable for use in the garden - the instructions tell you to cut up the cardboard waffle they come living on, & put the pieces onto the plants... but this is almost impossible outside as even on a low wind day the pieces just blow away! I tried to nudge the larvae onto the plants themselves, but again they are so tiny that they simple fall off or are almost impossible to move without squashing them. I'm sure if you have sizeable plants in a greenhouse they'd be brilliant as the instructions to tap them out over the plants & cut pieces of the cardboard/membrane out to let the eggs hatch & the larvae crawl off, would be appropriate but outside on an average day in may they were useless. Most of them ended up on the ground, squashed or just blowing about bits of paper in the wind. So they were a total waste of money & I'm very disappointed, if i'd known i'd have waited to order later in the yr when weather conditions were more conducive, or simply stuck to ladybird lavae which are that much bigger & more appropriate for outdoors