Well I haven't actually found the bug yet, but I pretty much fall into bed around sunset.

My plants are being cut off, right at the soil line. So far, larkspur, rudbeckia, echinacea, hydrangea, and tomato. Only one stem per plant per day seems to fall, but every day a stem or two is lost. These are established plants, started from seed last year. Height has varied from 2.5 to about 4 feet. Since these plants are established, they are a foot or more wide at the base so collars are out of the question.

I got some BTk to try. Since they only attack at the soil line, is this all I should spray? I see no purpose in spraying the whole plant, but should I? No purplose in spraying the soil and mulch either, is there? Doesn't the insect have to ingest the sprayed plant to die?

Does it need to be reapplied after rain?

Any help/comments will be appreciated. Thanks.

Karen