Publications for:

pest = Microtus pennsylvanicus
crop = Pine (Pinus)

found 2 publications:

2009

Conifer-seed preferences of small mammals
Canadian Journal of Zoology (2009) 87 (9), 773-780
publishers website - pestinfo wiki

1996

A comparison of the effectiveness of predator odor and plant antifeedant in deterring small mammal feeding damage on lodgepole pine seedlings
Journal of Chemical Ecology (1996) 22 (11), 2123-2132
publishers website - pestinfo wiki