these often go completely dormant by midsummer

Spray leaves to the point of run-off

Bergenia are incredibly hardy

100 mL bottle makes 30L

BTK Size:500 ml (makes 150L) these often go completely dormantUsed for the control of caterpillars and Box Tree Moth. 100 mL bottle makes 30L 500 mL bottle makes 150L BTK is NOT a chemical pesticide but a microorganism that kills caterpillars Bacillus thuringiensis var. kurstaki. Caterpillars stop eating as soon as they ingest this natural bacteria and will die a few days later. Very low application rates required for effective control. A biological insecticide, it controls caterpillars, including cabbage worm,