Based on personal experience, here is how best to remove an infestation of gypsy moth caterpillars. There are several things you must have at your disposal, first:
- A large pruning instrument, for removing branches of trees where the caterpillars have made their tents.
- Materials for building a small fire. Kindling-level is fine here.
- A fire accelerant will be handy.
- Something to start the fire.
- Obviously you must locate your caterpillar tents.
- (This step is optional [not really].) Build a small fire. Leave kindling to catch.
- Go forth and prune your trees, gathering the afflicted tree limbs.
- (This is step is optional) Spray nests with fire accelerant (WD-40 works).
- Place limbs over fire so that nests catch and burn caterpillars.
- Go forth and prune your trees, gathering the afflicted tree limbs.
- Place cardboard under tree limbs.
- Light cardboard on fire.
- Add accelerant after realizing fire is taking forever to start.
- Caterpillars realize things are heating up, crawl out of nests by the hundreds, and take off running.
- You alternate crushing the fleeing caterpillars with your feet and spraying the whole scene with WD-40 to help the fire spread and do its work.
- Disgusted, nauseated, and perhaps a little scorched, you hose down the impacted area.
- You scuff the caterpillar guts off your shoes later.