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Systemic pest killers
"bobc" wrote in message
oups.com... On Mar 19, 10:48 am, "K Barrett" wrote: I found this while researching a different topic: Fromhttp://www.green-seeds.com/land_flor4.htmlscroll down to this story: Root Mealybugs Arnold H. Hara, CTAHR Dept. of Entomology, Hilo Submerging potted Rhapis palms in 120° F (49° C) hot water until the internal root ball temperature reaches 115° F(46° C) is 100% effective in killing root mealybugs. Hot water at 120° F does not significantly affect potted Rhapispalms. For more information or a detailed report contact Arnold Hara in Hilo at Ph: (808) 974-4105, Fax: (808) 974-4110 or e-mail: . I remember reading somewhere else about using hot water on plants, I just don't remember where. Has anyone else seen that? I wonder if orchids would tolerate 120F? Or 115F? I have used 100F to wash newly acquired orchids _if_ pests were found. Both were Phals with mealies. I used alchohol to kill the visible bugs, then washed the plants, bare root, in 100F soapy water. Seems to have worked, but with the alchohol, and soap, and hot water ... well, I'm not sure just what did them in. This was about 18 months ago and I haven't seen any new mealies. I wonder about cactus too ... could they survive hot water? I really hate using harder drugs (I am easily hooked G) and just like using soap or alchohol. Bob Campoli - Philadelphia, Pa I suppose one of the two of us should work up enough courage to email Arnold Hara at the U of Hawaii and ask him.. Palms ain't orchids...but hey. quien sabe...??? K Barrett |
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