burrow field vole common soil closeup microtus arvalis disaster burrowing earth extremely handheld attacked ground

burrow field vole common soil closeup microtus arvalis disaster burrowing earth extremely handheld attacked ground alfalfa medicago sativa lucerne plant violet flowers infested shorttailed pest europe detail agrestis greybrown overpopulation rodent yield damage rapeseed agricultural compensation rodenticides poison feed green plants pesticide pesticides farming problem agriculture czech european