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Post by richardw on Apr 21, 2017 1:13:45 GMT -5
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Post by steev on Apr 21, 2017 1:50:08 GMT -5
I could be wrong; there's a first time for everything, but is whitefly related to dampness, or is that just another common pest?
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Post by steev on Apr 21, 2017 3:04:05 GMT -5
That sounds like a maybe a dampness, maybe a lack of predators, issue. Is it too cold to put things outside?
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Post by richardw on Apr 22, 2017 4:31:37 GMT -5
I couldn't take the tomatoes plants outside as they grow in ground. Certinly not a dampness issue steev.
That good news you have had good results Encarsia formosa William, I wonder what winter temps they can handle before they die out?. it never gets below freezing point.
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Post by imgrimmer on May 15, 2017 2:09:09 GMT -5
I had good results with Nicandra physaloides. As soon as it starts to bloom white flies became less when grown outside or even disappear in greenhouse. Nicandra is a weed too. But at least easy to control in small gardens.
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Post by richardw on May 17, 2017 1:05:14 GMT -5
I wouldn't have any room for Nicandra physaloides, my greenhouse is not that big.
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Post by imgrimmer on May 17, 2017 6:44:58 GMT -5
I wouldn't have any room for Nicandra physaloides, my greenhouse is not that big. Nicandra is selfseeding here in my garden. There are always some enormous big plants but tiny ones as well some with only 1 flower. I guess these are the late "germinators" Maybe it is a chance to go for these ones. On the other hand I don`t know if these tiny plants have any effect on white fly.
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Post by richardw on May 17, 2017 14:10:05 GMT -5
Dont seem to notice many whitefly outside, obviously there's a reasonable insect balance there, but the predatory insects dont like going into the tunnelhouse, so the white fly have free reign, we will see how the Encarsia formosa goes, bought a tab containing eggs thats hanging at the moment, but dont think its quite warm enough for them now being so close to winter.
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Post by steev on May 17, 2017 18:05:18 GMT -5
Not using yellow sticky-traps?
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Post by richardw on May 18, 2017 0:46:46 GMT -5
I'm not really too worried at the moment about doing much about whats left of the white fly, its only 20 bucks for another two Encarsia formosa tabs, so i'll buy more and start a fresh in the spring. Mind you some yellow traps might help clean out some of whats left, what would ya use to spread on some yellow cardboard
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Post by mjc on May 18, 2017 2:29:18 GMT -5
Here's a couple of recipes...
Sticky Fly-Papers. —The sticky mate rial applied to the paper is the following: I.—Boiled linseed oil. 5 to 7 parts Gum thus 2 to 3 parts Non-drying oil. . . 3 to 7 parts For the non-drying oil, cottonseed,eastor, or neatsfoot will answer—in fact, any of,the cheaper oils that do not readily dry or harden will answer. The proper amount of each ingredient depends upon the condition of the boiled oil. If it is boiled down very stiff, more of the other ingredients will be necessary, while if thin, less will be required.
II.—Rosin 8 parts Rapeseed oil 4 parts Honey 1 part
Melt the rosin and oil together, and in corporate the honey. Two parts of raw linseed oil and 2 parts of honey may be used along with 8 parts of rosin instead of the foregoing. Use paper already sized, as it comes from the mills, on which to spread the mixture.
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