Pollination
Once flowering
starts, each flower cluster must be vibrated with an electric pollinator
at least 3 times weekly to release the pollen. Poor pollination results
in flower abortion, and/or small, puffy or misshapen fruit. Pollination
should take place midday when humidity conditions are most favorable (50-70%).
In large greenhouse ranges, this job is done more efficiently by installing
a hive of bumblebees for every 0.2 hectare. As well as saving the 15 hours
of labor per acre required for daily manual pollination, growers often
report yield and quality increases after switching to bumblebees. Some
important considerations are to monitor the health of the hive. The hives
are housed in cardboard boxes with a sugar water solution to supply a
balanced diet for the bees. Usually there is an indicator so the solution
can be replaced as it is used. If few flowers are open, pollen may also
be provided. Within 2 months or less, most hives will need to be replaced.
No pesticides should be used once a hive is in place. Bees are docile,
but it is a good idea to maintain first-aid supplies on site in case a
worker or visitor who is accidentally stung has a severe allergic reaction.