The ornamental design for my leaf and grass catching bag for riding mowers, as shown and described.
FIG. 1 is a perspective view of the leaf and grass catching bag for riding mowers, showing it in place on a riding mower,
FIG. 2 is a larger scale view of the leaf and grass catching bag of FIG. 1, and showing the drawstring closure at the larger end of the bag with a cleat used to secure closure.
FIG. 3 is a perspective view of the leaf and grass catching bag, depicting it as it appears before attachment to the mower, showing drawstring closures at both ends, and further showing the pressure relief mesh in the middle of the bag; and,
FIG. 4 is a perspective view of the leaf and grass catching bag of FIG. 1, and showing the drawstring closure at the smaller end of the bag with cleat used to secure closure.
The broken line showing of is for illustrative purposes only and forms no part of the claimed design.