My friend and neighbor, Gina, texted me some photos of her basil leaves this week. Unfortunately, the first one didn’t come in right away, so I saw only the 2nd and 3rd ones until just now. The above photo (the 2nd one to arrive) shows leaves with holes in them. The 3rd photo, below, shows a worm or caterpillar on a basil leaf. Here’s that little critter:
My Suggestion: insecticidal soap
GardenSafe is the brand I use, and is the same photo I texted back to Gina. Normally, I use Neem Oil because it doesn’t wash off with rain, but this time of year it is so hot around here, the oil melts and slides right off the plants. Both of these products are safe to use on vegetable plans as well as flowers. I insist on organic gardening in my kitchen garden, and these products are perfect for that. The only down-side of the soap is that, after a rain, you will need to spray again. I got this insecticidal soap at Lowe’s, and my Neem Oil at Ace Hardware, but most any good garden center should have them.
Because I missed that first photo — it was late arriving in my in-box — I didn’t see the whitish squiggly things that Gina mentioned, and told her it was probably mealy bugs. Now that I have seen it, I see I was wrong. The squiggles she mentioned appear to be trails left behind by slugs. For more information see my April 20, 2015, post entitled, Amy Asks What to Do About Snails.
Something weird is going on in cyberspace yet again: I emailed all the photos to myself to get them on the computer, and again, the same one is the only one that hasn’t shown up yet. Those white squiggles Gina mentioned can be seen in the top photo above on part of a leaf showing out from the main one with holes in it. Looks like slug trails to me.