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Infested Lupinus!

Jlpknight87Jlpknight87 Posts: 25
in Problem solving
Good morning everyone,
This morning I found that newly planted dwarf Lupinus stem appeared to be discoloured and I fear the stem was rotting. However on closer inspection I realised it had been infested with hundreds, if not thousands, of greenfly and other unwanted pests... I immediately saturated the plant with pesticide using a rose spray and scraped  off as many insects as possible... Not sure why this plant had been victim to the pests and not sure what I could of done to prevented this and what I should do moving forward... Any suggestions for experienced gardeners would be greatly appreciated. 
James 

Posts

  • JennyJJennyJ Posts: 10,576
    There's a particular type of aphid (nasty big fat grey ones) that only infests lupins. I inspect mine daily and brush the little monsters off.
    Doncaster, South Yorkshire. Soil type: sandy, well-drained
  • Jlpknight87Jlpknight87 Posts: 25
    A photo after spraying
  • purplerallimpurplerallim Posts: 5,287
    The one reason I don't grow lupins, they are earwig magnets! 😬
  • FairygirlFairygirl Posts: 55,117
    You just need to hose them off, or wipe them. 
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • LynLyn Posts: 23,190
    I’ve never had an earwig on a lupin, plenty on dahlias, but not lupins.


    Gardening on the wild, windy west side of Dartmoor. 

  • FairygirlFairygirl Posts: 55,117
    The damage to that plant is from the pesticide @Jlpknight87
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
  • Jlpknight87Jlpknight87 Posts: 25
    Fairygirl said:
    The damage to that plant is from the pesticide @Jlpknight87
    I only sprayed it a minute before taking that photo...
  • FairygirlFairygirl Posts: 55,117
    Then it's probably because it's been soaked while in the sun.
    Always do that in cloudy weather.   :)
    It's a place where beautiful isn't enough of a word....



    I live in west central Scotland - not where that photo is...
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