I’m with you in the old thread now. had green ones on the native plums this morning, first I’ve seen this year. last year they attacked my big plum tree, it was a plague of them.
I’ve got some mantis cases on the trees there and don’t want to hurt those, so I don’t want to spray. not too sure how to beat them back right away before they explode though.
aphids in the greenhouse this year, all on peppers and eggplant. did spray with sevin last month, it’s been long enough that I’m about to release ladybugs in there (just ordered some in with my nematodes for the year). hoping they can get a grip on them in the next week or so, since it’s a small area in there.
I did a dormant spray or two of the plum that was infested last year and the gooseberries. hope that keeps the worst away this spring
Hey if you want the best predator for aphids in a greenhouse try Aphidoletes aphidimyza
Also known as the aphid midge.
I used to have several greenhouses when commercially growimg peppers, eggplants but mostly tomatoes. When i first started the aphids moved in like the plague. I ordered a small dose of the midge and it completely cleaned them out. Never got aphids again. In fact what I failed to notice when i built this particular greenhouse was that the plum tree that i had gone out of my way to spare was infested with the critters and they had migrated into the greenhouse. Great thing about the midge was that they found their way out of the greenhouse to the plum tree and freed it from its aphid burden.
Dawn works but there is a trick. You have to put a ring of soap around the animal’s neck, to the skin and -then- get them wet and wash. The fleas try to get away from the water by going to the head and die trying to go through the soap. You also have to make sure to really get into their armpits and paws. Good hiding places.
I’ll try em
Ugh, I got the green ones on my Primus currant 
I got rid of my roses. Was not easy but they’re aphid magnets. I’ve read Japanese beetles like them as well. Idk about that. But I have neighbors with roses all around that look like they’re coated in sugar water. I they don’t even know why… they also like Japanese maple trees which are also all around. I do have several of those but watch them close.
Now the main reasons I had aphids was I didn’t know how to feed properly. I fed a lot of high nitrogen to some plants and trees especially early on. When I stopped doing that the aphids went away big. My friend down the street has ants and aphids everywhere and some of his trees were very stingy. He fed his beautiful grass lawn food and after 7 years stopped so I’ll be watching the difference. One of his trees is already loaded with plums which he almost got rid of because it never produced or maybe a literal handful each year.
Also I noticed some ants on my new plum tree and new growth leaves and tips not looking so good but I read those aphids are very tiny so used tanglefoot and that really seemed to help.
update on the midges. I ordered in those and ladybugs. midges arrived first and I released in the greenhouse. the aphids on the peppers dropped a lot by the time the ladybugs arrived. they seem to be handling the rest, and I’ll probably order in more
I have mantis cases waiting to hatch too that I collected early on spring.
nature’s good guys delivered really fast, I just added them to my beneficial nematodes order.
Mirroring global affairs, there’s been a steady escalation in my indoor plant area in the conflict between me and my little green “friends.”
This is the first time I’ve had aphids get inside the house and affect my grow area. I think they can’t inside on some plants that I over wintered, spider mites also. The spider mites were mostly defeated eventually, but the aphids have been a real pain.
Fungus gnats had also come in, but between the centipedes and the fly tape, they were knocked out in a few weeks. The centipedes were less effective against the plant dwelling pests however.
Initially, I tried to control both by spraying off the plants and, for the mites, keeping the indoor humidity high. I tried chrysanthemum extract for a bit since I had some in a spray bottle already on hand that I wanted to use up, with mixed results. I mixed up a dish soap solution and used that alternating with water for a while but was not impressed by the results. After running out of that, I mixed up some malathion and used that while keeping up the water sprays as well, at which point the mites were knocked out of the fight. The aphids were kept somewhat down for a time but would rebound within a few weeks. Eventually they started hitting a bunch of new plants that had been unbothered before and I switched up to insecticidal soap sprays, having finally bought a container of insecticidal soap concentrate. But unless I was very through, the aphids would often bounce right back. I was losing.
So I finally resorted to a neonicatanoid, Imidacloprid. Having already moved outside any plants that will be visited by pollinators in the near future, I was free to use more dangerous tools. And man, systemic insecticides are so much more effective than contact insecticides… In this case, indoors with no chance of collateral damage, Imidacloprid looks to have been just the right tool for the job.
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As to why no ladybugs, the wife and I have an excellent relationship, one the I’m not going to strain by, for example, litigating our differences of opinion on the correct number of insects to intentionally release in the house. 
I almost ordered ladybugs to release in my house earlier this year… I am the wife!
