Pecan tree type in D/FW?
Does a Mahan pecan tree planted with a Desirable do well in the Dallas/Fort Worth area, specifically in Lucas?
Collin County Texas
I am not familiar with the Mahan variety but it appears there are varieties that are new and improved that were crosses with Mahan. That variety is Lakota. Desirable has long been a recommended variety. Lakota and Desirable would be a good match for pollination. A popular combination is Pawnee and Kanza.
Check out our Pecan publication at http://aggie-horticulture.tamu.edu/fruit-nut/files/2010/10/viewpdf_3111_21293.pdf
You should consider purchasing your pecans from a reputable Fruit and Nut Nursery here in Texas. You can find resources and contact information at http://www.tpga.org/index.php