Storm/WikimediaCommons
^^Ladybugs (aka
ladybeetles, ladybirds) are voracious aphid and spider mite predators. Never harm
or remove these beetles from plants at any stage of their life
cycle!!!
^^replace larger pieces of turf and rake up the rest. Best approach is to let the birds and other predators clean out the larvae, then rake, add top dressing and sow grass seed.
Nematode treatments are only mildly successful and chemical insecticides are undesirable .
Vancouver Sun article
BC Gov/Ministry of Agriculture info page