Table 1

Temporal sequence of effects of ingestion of a low dose of live cell formulation of B. thuringiensis (DiPel 10 IU) on condition of hemocytes and larval mortality in third-instar gypsy moth.

Time (h)

Larvae with hemocyte abnormalitiesa (proportion)

Hemocyte ratingb

Larval mortality (proportion)


No treatment

Bt

No treatment

Bt

No treatment

Bt


0

0.00

0.00

+++

+++

0.00

0.00

14

0.00

0.40

+++

++

0.00

0.02

24

0.00

0.75

+++

+

0.00

0.07

32

0.00

0.87

+++

+/-

0.00

0.15


a n = 5 for each treatment.

b Rating scale:

+++: hemocytes entire, adhesive properties

++: some hemocytes, inclusions present

+: very few hemocytes, ruptured cells

-: no hemocytes

Broderick et al. BMC Microbiology 2010 10:129   doi:10.1186/1471-2180-10-129

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