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Ants and milking aphids how do I keep them at bay this year?

Hello All,

Last year, I had quite an infestation of ants in the borders, not a problem as such I thought, but became one when I realised they were relentlessly milking the aphids that had taken a hold on two new apples cordons and one damson, plus on a newly established trachelospermum that nearly died it was so covered...

I tried AntStop baits, but I think it was a bit too little, too late and although the ants decreased, they were still around and milking the aphids.
I don’t spray insecticide in my garden at all, only SB invigorated spray that works very well as a prevention and to keep pests down, but there were too many aphids for that.
I also tried sticky yellow bands around the tree trunks, but the ants just circumnavigate them by getting at the trees from the fencing and wiring above.

What could I do this year and how could I stop this from happening again?
I introduced lots of ladybird larvae in the garden last year, which helped, but the larvae weren’t readily available until the weather was warmer, by which time the ants and aphids had really got a hold.


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Posts

  • KT53KT53 Posts: 9,016
    Why would you want to get rid of ants from an area where their activity is helping to control aphids?  Stop the ants and the aphid problem will be far worse.
  • dappledshadedappledshade Posts: 1,017
    Sorry but how are the ants helping?!
    They milk the aphids and guard them to keep them alive.

  • purplerallimpurplerallim Posts: 5,287
    @KT53 the ants milking the aphids make them suck more from the plant weakening the plant more , what @dappledshade needs are more birds and ladybirds in the garden plus spraying with washing up water ( will help but not completely control) Last year was a bad year for aphids,  hopefully this year will not be as bad.🙄
  • FlyDragonFlyDragon Posts: 834
    You need birds, sparrows especially absolutely love eating aphids.  Put food out (mealworms and sunflower hearts seem to attract them here) and get a bird bath at ground level and fresh water every day. 


  • dappledshadedappledshade Posts: 1,017
    @KT53 the ants milking the aphids make them suck more from the plant weakening the plant more , what @dappledshade needs are more birds and ladybirds in the garden plus spraying with washing up water ( will help but not completely control) Last year was a bad year for aphids,  hopefully this year will not be as bad.🙄
    I thought so! 
    Thank you.
    Garden is full of birds, and the tits and wrens love to pick some of them off, but it got out of hand last year with the sheer number of aphids.
    Didn't see much ladybird action sadly, in spite of putting out about 100 larvae...they don’t seem to colonise in my garden and I have lots of places incl bug hotels for them to use...what could I do to encourage them more @purplerallim?
    I’ve never sprayed with washing up liquid...is it ok to use an eco version?
    Normally I use SB Spray, which is plant phenol based and affects the function of aphids, whitefly and other soft bodied pests, very efficiently.
    Ive had great results in the past, but last year the aphids got out of hand before I had realised the scale of the problem.
  • dappledshadedappledshade Posts: 1,017
    FlyDragon said:
    You need birds, sparrows especially absolutely love eating aphids.  Put food out (mealworms and sunflower hearts seem to attract them here) and get a bird bath at ground level and fresh water every day. 


    Thanks @Fl@FlyDragon.
    Ive got a ground living bird bath, but the birds here prefer the beach area of my wildlife pond usually.
    We do have some sparrows, but they’re mainly at the front where the bigger hedges are, rather than at the back.
    Ive got a massive squirrel buster bird feeder that stays up all year ‘round and the birds have been pecking at the sunflower seeds throughout the winter.
  • Interesting aphid/ant relationship, isn't it? The aphids feed 100% on plant sap, so their 'diet' has far more sugar in it than they need in proportion to other things. They excrete the excess sugar as 'honeydew', which of course the ants love. The ants protect 'their' aphids from predators - not much chance of ladybird or its larvae getting near the aphids if there are lots of ants on guard. So the relationship benefits the aphids too. I believe the ants even carry the aphids around - maybe placing them on previous un-infested parts of the plant. As a bee-keeper, I happen to know that "Honeydew Honey" is one of the few descriptions that you can legally add to the word "Honey" in the UK, though I've never seen any, and don't know how you could be certain that your bees had only fed on "aphid excrement"!

    I'm using "SB Plant Invigorator" too - aiming to control mealybug on cacti in the greenhouse. I don't usually worry about outdoor aphids, but I'm sure it would be good for reducing their number
  • purplerallimpurplerallim Posts: 5,287
    I only use the washing up water when it gets very bad ( like last year) and don't use anything else to clear the pests, trying to do a live and let live philosophy. I have used the ant traps in the past , just to keep the numbers down, but mainly to keep them from invading the house.
  • DovefromaboveDovefromabove Posts: 88,147
    We’ve achieved a pretty good balance here now and most years the bluetit families and predatory insects keep the aphid numbers down ... but if their numbers do build up I squirt them off with a goid jet of water from the hose. Doing that every day for about a week really reduces the aphid numbers. 😊 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • dappledshadedappledshade Posts: 1,017
    Thanks all, really useful advice 😊
    I have a pretty relaxed approach to pests too, but sadly the aphid infested plants were so smothered last year, that they started to really suffer.
    That’s the only reason why I wanted to get ahead of the game this year!
    Can’t wait to achieve that magical balance here too @Dovefromabove 😁
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