It has to be ingested by the caterpillar stage of the insect to be effective in 24 hours.
In its caterpillar stage it is white in color.
It's a caterpillar stage, to be relished in retrospect.
Many moth species are better known in their caterpillar stages because of the damage they cause to fruits and other agricultural produce.
Several families of wasps lay eggs on moths in the caterpillar stage, he said.
Several butterfly species live out their caterpillar stage inside an ants' nest.
For the insect itself, the caterpillar stage is a dangerous one.
First, of course is the egg, which develops to the caterpillar stage.
If you've missed a few and they reach the caterpillar stage, squash these as well.
It also allows them to transfer much feeding effort forward from the vulnerable caterpillar stage to adulthood.