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Post by starbuckwhy on Jul 1, 2016 0:21:48 GMT -5
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Post by prairiegarden on Jul 1, 2016 3:12:25 GMT -5
Well I learned something a couple of weeks ago, canola oil...the stuff that's sold for cooking...is an insecticide. I'd used it to kill tent caterpillars but thought it was some sort of physical thing, like it suffocated them, now I'm not so sure. It certainly killed them dead within a minute or so of being sprayed, maybe less. A university out of California is studying its use as an insecticide. Knew there was a reason I use olive oil.
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Post by starbuckwhy on Jul 3, 2016 14:02:22 GMT -5
nice. i'll have to try it.
dose if attract ants?
my bigest pest problems... well, my most persistent pest problems have been ants farming aphids on my plants.
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Post by starbuckwhy on Aug 22, 2016 4:15:32 GMT -5
so the pokeweed spray i made worked very well on the afids, and even seemed to deter the ants that wear feeding on them a little bit.
also as an unexpected bonus, it seems to have repelled earwigs pretty well.
most of my plants seem to be more or less immune to the particular species of of afid that it hitting my nasturtium to hard, i may just give up on eating the nasturtium this year and go ahead and use the pokeweed spray on them too, to control the afid population.
perhaps i will try the canola oil first.
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Post by prairiegarden on Aug 25, 2016 8:31:49 GMT -5
Most people who use it dilute it and that might be a good idea. My apples and a pine seedling both showed blackening leaf after being sprayed although all seem to have come back again, not sure how a more tender leafed plant would cope. I'd gone heavy duty with full strength and it might well have been overkill, just because I was a bit sceptical. Most dilute it with water and a couple of drops of dish soap so it will emulsify and if I use it again I'll be doing that.
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Post by richardw on Aug 26, 2016 14:16:12 GMT -5
I might have to try canola oil on white fly which has become quite bad in my tunnelhouse over the last few years. Also keen to try superphosphate powder, a friend found some in his shed, but it was the last of a big bag and it was just the dust left over, he threw it around his tomatoes that had white fly on and found they were dead within a short time, its worth a try.
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Post by starbuckwhy on Sept 19, 2016 16:40:58 GMT -5
Most people who use it dilute it and that might be a good idea. My apples and a pine seedling both showed blackening leaf after being sprayed although all seem to have come back again, not sure how a more tender leafed plant would cope. I'd gone heavy duty with full strength and it might well have been overkill, just because I was a bit sceptical. Most dilute it with water and a couple of drops of dish soap so it will emulsify and if I use it again I'll be doing that. i had the same for of results, it seems to be protecting my apples from apple moths pretty well. but some of the ones i sprayed more heavily while they wear young have reacted poorly, definitely gonna try diluting with a mild soap next time. |
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Post by steve1 on Sept 20, 2016 7:22:46 GMT -5
Isn't it going to be just another recipe/ version of white oil? From the recipes online that's just vegetable oil and a surfactant, and that also burns plants when the weather is hot (I don't go use it if it's above 25c or on tender plants). I don't think there is any particular compound that is going to be insecticidal. Try your standard recipe with vegetable oil and see whether the results are the same. Here's a link to an Australian site stfc.org.au/home-made-white-oil-recipeHope that helps. |
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Post by starbuckwhy on Sept 22, 2016 4:06:40 GMT -5
Isn't it going to be just another recipe/ version of white oil? From the recipes online that's just vegetable oil and a surfactant, and that also burns plants when the weather is hot (I don't go use it if it's above 25c or on tender plants). I don't think there is any particular compound that is going to be insecticidal. Try your standard recipe with vegetable oil and see whether the results are the same. Here's a link to an Australian site stfc.org.au/home-made-white-oil-recipeHope that helps. yah, pretty much.but the pokeweed worked very well on the corn. |
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