How One Grower Is Managing Pests in Organic Crops


The lavender plant above is a part of the Peace Farm Organics model, provided by Parks Brothers Farm. Photos: Leigh Ann Parks

In the early 2000s, Parks Brothers Farm (considered one of Greenhouse Grower’s 2022 Top 100 Growers) started to get loads of requests for licensed natural herbs and greens. Among the vast majority of our firm, the imaginative and prescient for natural manufacturing was not current. But with insistent encouragement from our Texas gross sales consultant, we obtained our USDA natural certification in 2014 and created the Peace Farm Organics model.

Crop safety has been probably the most difficult obstacles to beat. Through a lot trial and error, and sadly crop loss, we’ve developed a recipe that works for us. Here is the information we’ve gained by way of private experimentation.

Our two major points have been aphids and thrips. Azadirachtin is significantly efficient for worm eradication however has not confirmed to be the remedy of alternative for different pests. Pyrethrins are an in depth runner-up however nonetheless not a broad-spectrum type of biocontrol. Steinernema could be very efficient for fungus gnats. Isaria fumosorosea was a complete fail for us. Bacillus amyloliquefaciens works effectively on our basil. I’ve tried aphidoletes, praying mantis, and lacewings. Of these three, the lacewings are our favourite and whereas they don’t seem to be 100% efficient, they do the perfect job of conserving aphids and thrips at bay. The draw back of lacewings is how a lot the ants love them. When it will get chilly outdoors, the ants wish to transfer their celebration contained in the greenhouse and may wipe out all of our lacewing eggs in a single day. This 12 months, we’ve used a low pH hypochlorous (HCIO) product from Gardener’s Touch that has been very efficient on aphids and fungus gnats. We are simply stepping into the thrip season so I’m not certain if will probably be 100% efficient on these.

It could be very encouraging to attend the commerce reveals and see extra biologicals being produced to assist help natural rising. I’ve heard loads of chatter on social media this 12 months about how natural is “not likely natural” as a result of we nonetheless use pesticides and the way unfair it’s to the patron to should pay extra for much less pesticides. That shouldn’t be a sensible view of natural rising. The technique of offering a pleasant, really natural product for the patron is way harder and concerned. I can solely communicate for Parks Brothers, however we’re dedicated to rising really natural merchandise with little or no pesticides, even the permitted ones. It is my hope that we proceed to make progress in the world of biocontrols to make this a actuality.



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