Wasps from the Subfamily Pemphredoninae commonly called aphid wasps can be attracted to the garden by providing wooden nesting blocks drilled with 1/16th, 1/8th, 5/32nd, and 11/64th diameter holes. Drill as deep as possible but not all the way through the wood. The female wasps paralyze aphids and seal 12 to 24 of them with one of her eggs into a partition within the hole. The egg hatches and the larvae consumes the aphids.
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Wasps from the Subfamily Pemphredoninae commonly called aphid wasps can be attracted to the garden by providing wooden nesting blocks drilled with 1/16th, 1/8th, 5/32nd, and 11/64th diameter holes. Drill as deep as possible but not all the way through the wood. The female wasps paralyze aphids and seal 12 to 24 of them with one of her eggs into a partition within the hole. The egg hatches and the larvae consumes the aphids.
I set out bug zappers to get misquotes, but it seems to nail lace wings vigorously. Any suggestions?