While, a lord of small manor could not get stable harvesting and were often bothered by insect damage such as locusts and maize weevils, as well as by natural disasters such as wind or storm damage, flood disaster, and cold weather damage.
しかし、小領主の場合は、収穫が安定せずに、イナゴ・コクゾウムシなどの害虫・風害・水害・冷害などの天変地異で困窮することが珍しくなかった。