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#1
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Blackfly Blast off
I had a mass of blackfly eating a plant, and had run out of spray, so
decided to reduce their numbers temporarily by blasting them with a hose pointing upwards. When I returned to spray a couple of days later, there was no more damage and no blackfly. Is this pure coincidence, or is this really effective at wiping them out? NT |
#2
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Blackfly Blast off
"NT" wrote in message ... I had a mass of blackfly eating a plant, and had run out of spray, so decided to reduce their numbers temporarily by blasting them with a hose pointing upwards. When I returned to spray a couple of days later, there was no more damage and no blackfly. Is this pure coincidence, or is this really effective at wiping them out? NT Is this pure coincidence, No or is this really effective at wiping them out? Yes. We have done this before, especially on our Vicki Plum Tree. Mike -- .................................... Don't take life too seriously, you'll never get out alive. .................................... |
#3
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Blackfly Blast off
On 12/08/2011 21:01, NT wrote:
I had a mass of blackfly eating a plant, and had run out of spray, so decided to reduce their numbers temporarily by blasting them with a hose pointing upwards. When I returned to spray a couple of days later, there was no more damage and no blackfly. Is this pure coincidence, or is this really effective at wiping them out? NT It is really effective. The 'coincidence' is that when water coincides with their breathing tubes, they drown and die. A few may just get knocked from the plant to crawl elsewhere, but you'll squirt them next time. You don't even have to get the hose out. A spray bottle with water will be just as effective and waste less water (unless you're irrigating anyway). A tiny drop of detergent will be even more effective. It is important to note, though, that this method is just as effective on beneficial insects like bees, hoverflies, ladybirds, et al. :@( -- Spider from high ground in SE London gardening on clay |
#4
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Blackfly Blast off
On Aug 12, 10:47*pm, Spider wrote:
On 12/08/2011 21:01, NT wrote: I had a mass of blackfly eating a plant, and had run out of spray, so decided to reduce their numbers temporarily by blasting them with a hose pointing upwards. When I returned to spray a couple of days later, there was no more damage and no blackfly. Is this pure coincidence, or is this really effective at wiping them out? NT It is really effective. *The 'coincidence' is that when water coincides with their breathing tubes, they drown and die. *A few may just get knocked from the plant to crawl elsewhere, but you'll squirt them next time. yeah, thats exactly what I was thinking. You don't even have to get the hose out. *A spray bottle with water will be just as effective and waste less water (unless you're irrigating anyway). *A tiny drop of detergent will be even more effective. thanks, might try that It is important to note, though, that this method is just as effective on beneficial insects like bees, hoverflies, ladybirds, et al. :@( yes, when the bug count is mild I just leave them to get eaten, but this time the plant was being destroyed quickly. NT |
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