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White fly on lupins
 

White fly on lupins

I think I have white fly on my lupins. One plant is badly infected and I got to spray it before it bloomed but now it has bloomed and I can see the whitefly on the other lupin I was wondering should I cut off all the blooms and spray again or should I just cut to the ground as I don't think I am able to get all the flies as there is too much foliage. Or should I just leave the flies alone? NurseBridie, Drogheda, Co Meath Posted: 08/06/2016

These are greenflies, they leave their white skins behind as they moult. This species only affects lupins but can do so very severely, large infestations causing flower stems to collapse. A spray of water reduces numbers but they build up again and a greenfly spray might be needed.

  White fly infestation on lupins
 

White fly infestation on lupins

My lupins are currently magnificent but I notice today covered in white fly . Is there anything I can use that will not affect bees or other wildlife? Mary Ann, kilteevan, Co Roscommon Posted: 08/06/2016

These are greenflies, they leave their white skins behind as they moult. This species only affects lupins but can do so very severely, causing flower stems to collapse. A spray of water reduces numbers but they build up again and a greenfly spray might be needed.

 

Insectidal soap

I'm trying to grow organic and to that end I'm looking to make my own insecticide. Quiet a few of the formulas I have come across on line specify either insecticidal soap or dishwashing fluid as part of the formulation. Can you recommend an organic version and supplier of either of these. DonFoley, Maynooth, Co Kildare Posted: 16/05/2016


We are not aware of any outlet for organic inseticidal soap and it would seem that no such product is registered with the Pesticide Control Service for sale to the public, except products already madeup, such as Doff Greenfly Killer, which contains, fatty acids, the active part of insecticidal soap.
 
Washing up liquid is generally used in low concentrations of about 5ml per litre. This can scorch plants in some circumstances, hot weather, for example.

 

Sparrow problem

Sparrows are pecking at the silicone on my windows causing damage. Any ideas? Arwen, Rathdowney, Co Laois Posted: 03/12/2015

Birds usually have a good reason for anything they do ... so they may be pecking at insects or wind-blown seeds.

Or they may be attacking what they think of as a rival, though this is more common in nesting.

If you temporarily smear some oil or margarine on the window to smudge the reflection and on the rubber, it might work. 

 

Hares

when you list rabbit proof plants/shrubs does this also mean hares? KenRowlands, Gorey., Co Wexford Posted: 14/04/2015

Yes, all grazing animals. Most of the plants they avoid are distasteful or poisonous.

 

Greenfly infestation

I live in the countryside & the farmer in the field beside my house planted wheat crop this year. All my flowers/fruit & fruit bushes have hundreds upon hundreds of greenfly. I have planted flowers which help to attract insects to kill the greenfly, these flowers have been consumed by the greenfly. I spayed with soapy water, garlic water, organic spray & harsh chemical spray-none have worked. My sunflowers are disgusting, there is more green than yellow, my uncle (who is an avid gardener) was amazed at the amount of them. The farmer is sowing barley next year, will this infestation occur next year too? April24, Donore, Co Meath Posted: 22/07/2011

 

A crop of wheat has no bearing on greenflies in your garden. If a farmer had such an infestation, he would have no crop of corn.

If you wait, the balance will be righted by the natural predators and parasites which abound in the countryside. Or else apply a garden insecticide, as directed on the pack.

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