A group of Catholics in Fresno, California noticed that a tree outside their church was weeping tears, which they saw as a sign of God. More and more of them started gathering under the tree to pray. Then scientists explained that there is a scientific reason behind this.

Arborist Jon Reelhorn said the reason behind the weeping tree was from insect excrement caused by aphides or tree lice. He said:

The aphides will suck the sap, the sap goes through the aphid and then it is a honey dew excrement from the aphid and it gets so heavy in the summertime that it will drip down.

Entomologist Richard Covelo confirmed this by saying:

Crape Myrtle trees as a generality can get really high populations of Crape Myrtle aphids and at times it can look so bad that it looks like the tree is raining out of it with all the honey dew dripping down.

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