I have my white hyacinth vine going crazy all over my hedge in my front yard. Northern exposure. My purple Hyacinth vine..1 vine is so covered in aphids it is almost dead! It never did any good. I think it is past help. But I have tons of seeds to plant later if I want. But the white ones took off like weeds! It blooms all the time and it hard to control. God how I wish my Snail vine was like this one! BUT now 1 vine is getting black aphids all over the bloom spikes and of course the new leaves. What can I spray on it to kill these bugs! Isotox,Malathion,what chemical will kill the bugs and not the vine.?? I have never used chemicals on an annual vine. So this is new to me. Help!!