Last month, I saw a lot of inquiries about earwig control on social media groups. Although I never got around to talking about it on the Arthropodcast show, I figured we should cover it now to help some folks out for next year.
Before we talk treatment, I’m going to assume that to the best of your ability, you’ve already addressed moisture issues with the customer – recommending gutter extensions, sealing up doors and other openings, as well as checking under planters, exterior mats, exterior carpet and the big black base of adjustable basketball goals.
It’s been my experience, earwigs problems are found far more with slab foundations than crawl spaces. This leads me to believe, earwigs prefer ground level entry over climbing or flying into structures. Because of this, I believe exclusion efforts alone could reap great results.
If, however, you don’t have the time or resources to perform a water tight exclusion service, I recommend using two different product types in conjunction with each other – liquid and granular baits.
Liquid treatments work in areas where you would use a pinstream like expansion joints, cracks, and attached slab areas. However, for softscape areas (landscaped, mulch, gravel and soil) your best bet is the use of a granular bait like InTice, MotherEarth, Niban.
For much of the year, the baits mentioned above work well, but it seems during the hottest months of the year, earwig diets change and these typical granular baits don’t work as well. The dip in their performance is probably because these baits are designed for longevity. The baits hold up well in the typical weather that you’d expect in a bimonthly or quarterly services, but their “staying power” comes as a sacrifice to the bait’s flavor. In other words, these baits have somewhat of a bland flavor.
Because of this, during the hottest months of the year, you’ll need to switch to a bait that focuses more on flavor than longevity. I recommend something like InVict Xpress or Maxforce Complete.
I know a few pest control operators that mix multiple granular baits to ensure a broader spectrum of flavors and longevity are covered. Personally, I’ve never done it, but I see the benefits of doing such.
Hope that helps!