I've been told it was first sighted in California in 2008 and by the end of 2009 had reached Abbottsford BC! The buggers were on my blackberries in 2009 and I had no idea why fruit flies had taken a sudden liking to ripening blackberries. They now go after every fruit with a soft skin, all berries, cherries, plums, Hardy Kiwis (all smooth skinned Actinidia species), and sadly Figs :(
This year I've found at least three larvae crawling on ripe Figs within a few hours after picking the Figs and bringing them indoors. They really suck as they initiate premature spoilage in the fruit and there is NO effective control for them except to do as a friend a few blocks away has done and enclose his raspberries in a cloche or no-seeum netting once they have been pollinated through the end of their season. Unfortunately that isn't feasible for Fig trees.
As the saying goes, "resistance is futile". Get used to them and many more pests to come thanks to "Globalization" and Climate Change. If they can survive your climate, they will eventually become established. Thus far mankind has failed to eradicate so much as one insect pest despite dumping many millions of tons of toxins into the environment.
As far as those great "insecticides" are concerned, can you say Rachael Carson? Best to leave them on the shelf in the stores that push them.
kiwibob, Seattle
Visit my website: http://sites.google.com/site/kiwifruitsalad2