A cylindrical net 10 according to one embodiment protects a plant from insects. The cylindrical net 10 is equipped with a first net section 11, and a second net section 12 for forming a cylinder along with the first net section 11. The first net section 11 has a larger mesh h1 than the mesh h2 of the second net section, and the first and second net sections 11, 12 are provided in the circumferential direction of the cylinder.一實施形態之筒狀網10係用以保護植物免受害蟲之傷害的筒狀網。筒狀網10具備第1網狀部11、及與第1網狀部11一併構成筒之第2網狀部12。第1網狀部11具有較第2網狀部之網眼h2大之網眼h1，第1及第2網狀部11、12配置於筒之圓周方向上。
