BLIGHT-EATING BEETLES.

It has been announced by the Bureau of Entomology, U. S. Department of

Agriculture, that several species of beetles have been found eating

the spores of the blight fungus, and it is stated that “should these

insects prove as beneficial as the observations indicate, they are

certain to be an important factor in the natural control of the dreaded

chestnut blight disease.” It is worthy of note in this connection that

the insect investigations of this Commission have shown that a number

of insects also carry large quantities of blight spores, and may thus

indirectly assist in the dissemination of the blight. One of these

insects which was found to carry an enormous number of spores is one of

the beetles above mentioned as eating the fungus.

Final report of the Pennsylvania Chestnut Tree Blight Commission · 第 21 / 145 题