Table 3. Mortality of elm leaf beetle adults on elm treated with various formulations of Bacillus thuringiensis in greenhouse trials.
FormulationRate/100 galPercent mortality1
ABG 62632.0 lbs97.6%
ABG 62633.0 lbs100.0%
ABG 62634.0 lbs100.0%
M-One4.0 qts61.6%
M-One6.0 qts79.8%
M-One8.0 qts94.5%

  • ↵1 1corrected 72 hour mortality based on Abbott’s formula (1925). Mortality based on 70 field collected beetles confined to treated caged trees in a greenhouse.