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Black Fly On Broad Beans
Hi
My broad beans have a very bad infestation of Black Fly. I am finding it almost impossible to get any kind of pesticides from Garden Centres etc. Does any one have any idea what I can do please? Some one on the allotment site swears by boiled Rhubarb water. Claims it to be a good poison. If so any one know the mix please? regards Ged |
Black Fly On Broad Beans
In article , The
Gorilla writes Hi My broad beans have a very bad infestation of Black Fly. I am finding it almost impossible to get any kind of pesticides from Garden Centres etc. Does any one have any idea what I can do please? Some one on the allotment site swears by boiled Rhubarb water. Claims it to be a good poison. If so any one know the mix please? regards Ged My old neighbour from a long time ago, always sprayed the Broad Beans with the used washing up water. She also claimed that the Autumn sown Broad Beans were less liable to Black Fly. Mike -------------------------------------------------------------------------------- Forthcoming reunions. British Pacific Fleet Hayling Island Sept 5th - 8th Castle Class Corvettes Assn. Isle of Wight. Oct 3rd - 6th. R.N. Trafalgar Weekend Leamington Spa. Oct 10th - 13th. Plus many more |
Black Fly On Broad Beans
Some one on the allotment site swears by boiled Rhubarb water. Claims it to be a good poison. If so any one know the mix please? Ged, Rhubarb leaves contain oxalic acid which is poison to us so I suppose it might kill blackfly if it's in the water in which the leaves were boiled. Peanuts in a container near the broadbeans that only one bluetit can eat from at any one time is also good for helping to keep blackfly down - the birds queueing up "do the rounds" looking for something to eat. It's also a good idea to kill off any ant's nest near the plants for ants are the main cause for spreading and protecting blackfly. Regards Ron |
Black Fly On Broad Beans
In article , The
Gorilla writes Hi My broad beans have a very bad infestation of Black Fly. I am finding it almost impossible to get any kind of pesticides from Garden Centres etc. Does any one have any idea what I can do please? Reduce the problem next year by pinching out the young tips when the plants have reached their desired heights - this will render the beans less attractive. Planting either very early or very late is said to help. -- Kay Easton Edward's earthworm page: http://www.scarboro.demon.co.uk/edward/index.htm |
Black Fly On Broad Beans
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Black Fly On Broad Beans
Ron wrote in message ... It's also a good idea to kill off any ant's nest near the plants for ants are the main cause for spreading and protecting blackfly. Regards Urban myth again. Ants take advantage of the aphids, but I'm not sure that blackfly even come into the types they use, by persuading them to secrete Honeydew, but that is all, they do not spread them, or defend them except that they will attack anything that comes near them, the ants I mean, as they would in any other situation. Mike www.british-naturism.org.uk |
Black Fly On Broad Beans
In article , The
Gorilla writes Hi My broad beans have a very bad infestation of Black Fly. I am finding it almost impossible to get any kind of pesticides from Garden Centres etc. Does any one have any idea what I can do please? Try getting some rose clear from your local garden centre. I'll be amazed if there isn't some about somewhere. The washing up water that was mentioned can be used, though you might want to just mix some detergent with some clean water and spray with that. The detergent is supposed to break down the protective covering around the aphids and make them very susceptible to disease themselves, or something like that. Hope this helps. Dave. |
Black Fly On Broad Beans
Michael Berridge wrote:
: Ron wrote in message ... :It's also a good idea to kill off any ant's nest near the plants for :ants are the main cause for spreading and protecting blackfly. : : Urban myth again. Ants take advantage of the aphids, but I'm not sure : that blackfly even come into the types they use, by persuading them to : secrete Honeydew, but that is all, they do not spread them, or defend : them except that they will attack anything that comes near them, the : ants I mean, as they would in any other situation. - http://more.abcnews.go.com/sections/...ids000828.html ``Honeydew is the reason that ants are associated with aphids. In fact many species of ants are so addicted to this sweet drink that they will protect the aphids from various predators and move them to new plants if the one they are on starts to wilt. Some ants even go as far to build small shelters over species that feed near the base of the plant and or to keeping root-aphids inside their own nests. Lasius fuliginosus workers carry newly hatched fundatrices from the base of oak trees where they overwinter as eggs to new growing leaves at the top of the tree as soon as they are hatched. The common meadow ant Lasius flavus has a particularly close relationship with the root aphids it uses and even collects their eggs in the autumn and early winter and stores them in its nests, then in spring the eggs are moved to suitable chambers so that plant roots are available for them as soon as they hatch. In effect these ants treat the aphids as well as they treat their own brood. The interaction between Aphids and ants has been going for a long time and some ants are almost dependant on aphids for food while some aphids such as Protrama spp. are obligate myrmecophiles, and do not excrete honey-dew unless stimulated to do so by ants. Species of aphids which have intimate associations with ants, particularly those that live in their nests are of necessity monoecious.'' - http://www.earthlife.net/insects/aphids.html ``In return, the aphids don’t only win protection from the ants, often they also gain a warm, safe place to spend the winter. When crops have been harvested and temperatures drop, some ant species take in aphid eggs and larvae and host them in leafy nests. In Australia and Africa, certain ant species even build their aphids shelter during the warm seasons to protect them from torrential rainfalls.'' - http://more.abcnews.go.com/sections/...ids000828.html ``Colonies of aphids are sometimes protected by certain ants. In return for this protection the ants are allowed to collect the sweet honeydew. In most cases, the ants protect aphids that have already established themselves on the plant and these aphids or their eggs and keep them through the winter in their nests. In spring, the ants transport these aphids to food plants where they protect them from enemies and at different times the ants take them to new feeding sites.'' - http://www.ivyhall.district96.k12.il...cts/aphid.html -- __________ |im |yler http://timtyler.org/ |
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