Aphids and chickens and wasps..oh my!

[Mitzi M]

My lovely mustard greens are suddenly covered by a kazillion aphids and also by a lot of ladybugs and larvae. Anyone have any ideas how I can get rid of one and not the other? Honestly it seems like there are way too many aphids for the ladybugs to take out. And...My ripe tomatos are being stealthily gobbled up by neighboring chickens I've heard of people tying net around developing tomatos so that they won't get stung by the wasps. Anyone tried that? Maybe that will work for the chickens too! I'm really glad we have a gardning forum now! - Aloha