In our backyard, we focus on planting native plants, shrubs, and trees, especially host plants to support the moths and butterflies. We also incorporate a lot of habitats and try to make sure all the needs of our native fauna are met.
Admittedly, the vast majority has been planted in the last year or two, so things are still establishing themselves and balancing out. However, this year we did not see a single caterpillar. I have the suspicion that we are attracting too many beneficials that actively hunt for caterpillars (e.g. various species of wasp, assassin bugs, and tachinid flies); we have a fair share of plants known to draw in those beneficials.
I was wondering if anybody else is experiencing the same issue (well, it is an âissueâ if you like to get caterpillars).
Our hope is that, as the plants and shrubs grow and spread, things will balance out. Caterpillars will find more hiding spots, and also there might be survivability in sheer numbers then. I think we have to try to balance the population of wasps and hornets in our backyard because there is an abundance of them.
EDIT: I should have phrased things differently in regard to wasps, because some people now believe I hate them. On the contrary, I consider wasps and hornets to be beneficial insects. We have several water features that attract them, and they have never bothered us. Whenever a stray wasp ends up indoors, we guide it out; we don't kill it. Our neighbors on both sides have wasp nests every year, not by choice but because of their "garden layout" (keeping a lot of old wood, deserted sections, rotting overhangs, etc.), so there is a steady influx. In the past two years, we took down two tiny paper wasp nests inside our small shed. Similar to black widows, I won't kill them unless they are in a spot that could pose a danger to our daughter, pets, or even me.