This could be down to a number of possibilities. Firstly, a small percentage of leafcutter bee cocoons may contain no egg/larvae and only pollen and nectar. Secondly, other bee cocoons could become affected by a small parasitoid native to New Zealand, and finally temperature extremes. Prolonged low temperatures could significantly prevent the leafcutter bees from fully maturing, while too high a temperature could cause overheating of the cocoons and subsequently destroy the bees.
Articles in this section
- When will my leafcutter bees emerge?
- What is leafcutter bee emergence?
- What triggers leafcutter bee emergence?
- When will I see leafcutter bee activity?
- What is leafcutter bee activity?
- I'm not seeing any leafcutter bee activity, is this normal?
- Not all my leafcutter cocoons emerged, why is this?
- Does weather effect leafcutter bee activity?
- Is the positioning of my leafcutter house important?
- Can I tell if my leafcutter bees have emerged?