Monarch butterflies

Tony from Akina

Hi. I'm wondering if other members have noticed a dramatic decline in the number of monarch butterflies?


A friend living in the Akina area has several swan plants which this time last year were being ravenously devoured by caterpillars. This year, however, the meter-tall plants are virtually untouched. I have not noticed any monarchs in my own nearby garden. This afternoon I spoke to an assistant at a local garden centre who mentioned a similar absence of monarchs in her garden in Havelock North.


If other people have observed a similar decline I would be interested in any theories as to a possible cause. I see very few wasps - certainly no more than last year. The surrounding vegetation does not appear to have changed. Certainly we have had an unusual spell of wet weather, but I am still not seeing the butterflies on our relatively few sunny days. As far as I know, I live several kilometers away from any commercial crop spraying (my understanding is that orchardists are using fewer toxic sprays each year, not more).


Any thoughts appreciated.