Use Liquid Sope mixed with water and spary the leafs from top and below. You can also use Sevin and Sulfix . they are Pesticides available with good plant shops like Globe/ universal in New market area. Ask them for proportion and timing (when to spary - evening or morning) and interval, most probably it should be done in a week interval until all of them are gone. mind that you have this mix spayed all over your plants. otherwise there is a chance of reattack.