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Old 08-23-2012, 12:57 AM
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turfmd101 turfmd101 is offline
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Join Date: Aug 2012
Posts: 1,085
I'm not sure if you know how bifenthrin works. When you shake your bifen before you mix, your hoping to mix all the molecules around so when you pour your .5 or .75oz of product into your gallon you have substantial quantities out to be effective. Now throw into account the thatch layer, thick or thin this will effect molecule distribution along with water volume and since webworms don't ingest the molecule (because they are ectoskeleton it absorbs in their system and disrupts their central nervous system you are hoping they contact each other. Soap spreads the entire area insuring contact occurs. Ectoskeleton insects no like soap. Now for "damage ". Turf that has trouble recovering from webworms has underlying issues. If you mow with dull blades you will shred the turf blade tissue causing premature senescence. The plant will shed this foliage completely and it is recoverable unless there are underlying issues. As for just some unwanted weeds. Yes you could get Bermuda or any number of weeds which already exist (as seed) in the soil for every square yard of soil contains about 1,200,000 seeds waiting their turn to germinate under favorable conditions. Meaning Bermuda seeds are already there dormant. Webworm activity doesn't dictate which weeds emerge. It would have happened eventually.
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