Bacillus thuringiensis 6 D: A small potato plot (15 m2) was badly affected by the
Colorado potato beetle. On June 22 the first half of the field was
sprayed in the morning with Bacillus thuringiensis 6 Dfrom
Homeoplant (dosage: 10 ml in 10 liters of water). On June 23 the
treatment was repeated on the second half of the field. After 1 day, the small
and medium-sized larvae ceased feeding, turning their heads up; the large
larvae continued feeding but noticeably more slowly. The small larvae then died but the medium
and large larvae recovered and continued feeding.
A further application of the remedy had no apparent additional effect.
It might be possible
to completely prevent infestation by applying the treatment at an earlier
stage, before the tubers have formed.