He said the tree is dying so filling with cement give it energy to survive
Nathan Radley tells the children he sealed the knothole with cement in order to prevent Boo Radley from communicating with them or giving them gifts. He likely did this to further isolate Boo and maintain control over his actions.
He says that the tree wasn't actually dying, but that Mr.Nathan Radley would know more about trees then he would.
that if he doesn't put the cement in the whole, the tree will die.
To prevent them from finding anymore "gifts" from Arthur/Boo Radley.
Nathan Radley fills the knothole in the tree with cement, preventing the children from receiving gifts left by Boo Radley.
Nathan Radley said that when a tree is dying you fill is with cement to save it.
Nathan Radley tells Jem that he filled in the knothole with cement because the tree was dying and he wanted to stop it from spreading. In reality, he likely did it to prevent Boo Radley from continuing to communicate with the children.
Mr. Radley puts cement in the knothole to prevent any further communication or interaction between Boo Radley and the children. This action is driven by his desire to isolate Boo Radley from the outside world.
Nathan Radley fills the knothole with cement to prevent the children from seeing into the house.
In "To Kill a Mockingbird," the knothole in the tree is cemented up by Nathan Radley, Boo Radley's brother, as a way to prevent Boo from communicating with the children. This action symbolizes the Radley family's attempt to isolate Boo from the outside world and maintain their reclusive lifestyle.
Scout finds the gifts in the knothole in Chapter 7 of "To Kill a Mockingbird."
They can not because the knothole is filled with cement by Mr. Radley
He tells them the tree is dying.
The knothole game ends when the knothole tree is destroyed by the authorities, and the children lose their secret meeting spot in "To Kill a Mockingbird" by Harper Lee. This signifies the loss of innocence and the end of childhood for Scout and Jem.
Nathan Radley, Boo Radley's brother filled the knothole with cement. When Jem and Scout asked him why he was doing this he told them that his tree was dying and filling the knothole with cement would keep it from dying. Scout and Jem went and asked Atticus if he thought the tree looked like it was dying and he said it looked perfectly healthy.
Nathan Radley fills the hole in the tree where gifts are placed with cement to keep Boo from communicating with the children.