I picked a few off and moved them over to my neighbours huge kaffir lime tree - I am sure that can support a few more catterpillars. I kept five - I think they are the same as I watched one emerge last year. orchard-swallowtail-butterfly- . those I had on a branch I had picked from a neighbours tree, but this time I clearly have a preffered host plant for them.
Citrus fruit can be plagued by a lot of problems in the tropics, but limes are more resistant than lemons or oranges. I had bought some oil spray thinking that the curling leaves were a sign of leaf miner, but havnt used it yet. Now I am not so sure I will use it as it might kill the caterpillars AKA baby butterflies! I just hand plucked the few leaves that seemed to have prolems.
The catterpillars have been munching on the leaves and getting fatter and fatter.
Look at those spines! These photos are not so good as it was pouring with rain all week.