These army worms can cause a lot of damage in a short time. Named army worms as their mother lays a huge amount of eggs in 1 spot and they all hatch and start eating at the same time. You can recognize them where whole plants have disappeared.

Here are some more brothers and sisters about 30 seconds after being sprayed with pyrethrine. Pyrethrine is an extract of the pyrethrum daisy and attacks the nervous system of soft bodied insects. These bugs are already on their way to bug heaven. Pyrethrine works quick and is one of the safest organic pesticides to use.