Bacillus thuringiensis 6 D:
It might be possible
to completely prevent infestation by applying the treatment at an earlier
stage, before the tubers have formed.
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 D from
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.
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