Bill, sounds like a good choice. I called about the availability - 10lb case is $1150. Know any place I can get a smaller quantity?
On Wed, Apr 9, 2014 at 7:15 AM, Fleming, William <w...@exchange.montana.edu>wrote: > Choteau for preemergent control sprayed in the fall works well for me. > Lasts all season, any knockdown sprays in the growing season are very > limited. > > Of course, read the label. > > > > *Bill Fleming* > > *Montana State University* > > *Western Ag Research Center* > > *580 Quast Lane* > > *Corvallis, MT 59828* > > > > *From:* apple-crop-boun...@virtualorchard.net [mailto: > apple-crop-boun...@virtualorchard.net] *On Behalf Of *Glen Koehler > *Sent:* Tuesday, April 08, 2014 2:01 PM > *To:* Apple-crop LISTSERVER > *Subject:* [apple-crop] Glyphosate alternatives > > > > A Maine apple grower is exploring alternatives to using glyphosate > (e.g. Roundup etc.) for vegetation control in tree rows. The reason is > concern about immediate and long term effect of glyphosate drift onto > trunks. Despite efforts to reduce drift and accurately target herbicide > application, grower feels there is still too much risk of trunk contact. > There are some lower trunk cankers, but whether these are due in part to > previous glyphosate exposure not determined. > > > > Orchard is ca. 10 acre pick your own. Ground cover system is > permanent sod alleys/row middles with vegetation suppression in the tree > row during growing season, with moderate regrowth allowed in late summer - > early fall for protection against winter low temperatures. The trees are > ca. 15 year old Mac and Cortland on M26. New plantings will be tall > spindle. > > > > Previous tree row vegetation management has been annual glyphosate > application in May-June. The objective is to find program that will > provide similar results with less risk of trunk injury than associated with > glyphosate. > > > > New approach being considered is tree row application of 2,4-D (for > annual and perennial broadleaves) + Poast (for annual and perennial > grasses) in post petal fall period. > > Gramoxone (paraquat) as alternative burn down herbicide not acceptable > because of acute toxicity risk. > > Rely provides similar postemergent efficacy as glyphosate (though only > Fair vs. Good for perennial grass and perennial broadleaf), but may also > share the same trunk hazard as glyphosate. > > > > Alley sod management will continue to be regular close mowing. > > > > Your thoughts on this approach, and the reasons for making this > change (i.e. concern about glyphosate) will be appreciated. > > > > -- > Glen Koehler > University of Maine Cooperative Extension > Pest Management Office > Voice: 207-581-3882 > 491 College Avenue, Orono, ME 04473 > > _______________________________________________ > apple-crop mailing list > apple-crop@virtualorchard.net > http://virtualorchard.net/mailman/listinfo/apple-crop > >
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