Combine 1½ cup whole wheat flour, salt, canola oil, and ice water. Press into deep dish pie pan. Set aside.
Combine remaining whole wheat flour, sugar, and 1 teaspoon cinnamon. Cut in butter with pastry blender (or 2 forks), until topping is crumbly. Set aside.
Combine nectarines, remaining cinnamon, nutmeg, allspice, and pecans. Pour into prepared crust. Sprinkle with crumb topping. Bake until topping is golden, about an hour. (Watch the crust; I had to cover the edges after about 20 minutes.)
Recipe by Cooking with Veggies at https://cookingwithveggies.com/2012/11/18/bonus-recipe-nectarine-crumb-pie/