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Old 10-04-2012, 03:15 PM
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phasthound phasthound is offline
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That's a good point.

Here is the reply I received from Rich Buckley at the Rutgers Plant Diagnostic Lab regarding break though with Merit.
I have not heard anything specific for this year, but I don't doubt there were control failures. Merit will not control asiatic garden beetles. It is known that they will invade areas as a secondary pest once the oriental and japanese beetles are removed by the product. I also suspect that due to the dry mid-summer period that egg-hatch was delayed until late-August when the rains started again. If you applied Merit as per the label in May, then it was probably used up by then. I think it best to use Merit when the adults fly in late-June or July so it lasts through late-summer into fall.
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