Peace Tree Farm grower Lloyd Traven shows how he raises aphids in banker plants to feed the parasitic wasps that patrol his greenhouse, as well as how he uses mullein plants to provide habitat for other predatory insects. Read the whole story here: http://www.lancasterfarming.com/farming/produce/greenhouse-chooses-biology-over-chemistry-for-pest-control/article_2ebf9992-498f-11e8-8145-9fabcfd6cde1.html

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