Use a microbial insecticide that will not harm bees, beneficial insects or wildlife. It’s called Bacillus thuringiensis or BTK. It only kills caterpillars if they eat treated leaves. If you expect caterpillars or see signs of them, treat your plants in advance.
Caterpillars can get into your home as guests on plants you bring inside, or by sneaking in through holes in screens, open windows, or cracks in the walls.
The larval or caterpillar stage usually lasts about 7 weeks. The larvae are most active in May and June. The individual larvae pupate at the end of June into July and remain in this stage for 1 to 2 weeks. Adults hatch in late June to mid-July and can survive into August.
In many cultures in England, caterpillars are an omen of luck and fortune. In fact, these tiny creatures are often considered protection against colds and coughs. Likewise, in Hinduism, the graceful locomotion of caterpillars around leaves is associated with bringing good luck to travelers.
Bacillus thuringiensis (Bt) is a bacterium that kills caterpillars and other insects on contact. Bt is also known as “the spray that saves the crops”. It is used as a pesticide to protect both crops and domestic animals from insect damage.
It could be because there is a lot of pollen and lots of fresh new leaves. And so there is more food for them. And if there is much more food, all the babies will survive.
Bacillus thuringiensis subspecies kurstaki (Btk) is a microbial insecticide that only kills caterpillars.
Homeowners not interested in hunting and handling these pests may choose to administer the hands-off and hands-down Bacillus thuringiensis (Bt) eradication solution. This naturally occurring soil bacterium kills caterpillars within a few days by destroying the stomach lining.
Life Cycle Summary
Generation 2 larvae are widespread in the eastern United States, first appearing in early May in the south and mid to late May in the north. Eggs that become 2nd generation can be laid in the north until July.
This spray is great for killing aphids, beetles, bugs, mites, scales and whiteflies. In half a bucket of warm water, add 1 teaspoon of eco-friendly laundry detergent or 1 tablespoon of natural soap flakes.
Woolly worms have black and brown stripes on their fluffy fur. According to weather folklore, the more black on a woolly worm in autumn means a longer, colder, and possibly snowier winter is ahead. If there is more brown, especially in the middle of the worm, that is a sign of a mild winter.