Problem to be solved: to prevent the falling from the cultivation bottle while improving the working efficiency.Solution: the body 10 is formed in a band shape and is capable of growing in a state of alignment in a state of being put in a cultivation bottle, and is provided in a band shaped portion 10, first joint portions 21a to 21C provided in a first end part 11 of the body part 10, and a second end part 12 of the body part The second junctions 2a-22c are configured to be able to form a cylindrical body by joining the first junctions 21a-21c and the second junctions 22a-22c, and the first junctions 21a-21c are formed by cutting into the first end SariThe second joint portions 22a to 22c are formed with a taper 31, and the direction of crossing the first protruding piece 41 projecting from the edge 12a of the second end 12 and the projecting direction of the first projecting piece 41 from both ends in the width direction of the first projecting piece The second projecting portions 42a and 42b are provided to project.Diagram【課題】作業効率を向上させつつ栽培瓶からの脱落を防止する。【解決手段】栽培瓶に装着された状態で茸を整列状態で生長可能に構成され、帯状に形成された本体部10と、本体部10の第1端部11に設けられた第1接合部21a~21cと、本体部10の第2端部12に設けられた第2接合部22a~22cとを備え、第1接合部21a~21cと第2接合部22a~22cとの接合によって筒状体を形成可能に構成され、第1接合部21a~21cは、第1端部11に切り込みを入れて形成されたスリット31を備えて構成され、第2接合部22a~22cは、第2端部12の縁部12aから突出する帯状の第1突出片41と、第1突出片41における幅方向の両端部から第1突出片41の突出方向に対して交差する方向に突出する第2突出片42a,42bとを備えて構成されている。【選択図】図1
