INSECT AND FUNGOID ENEMIES 171 



BEECH. 



Beetles. 



Orchestes Fagi. Beetle slaty-black, ^ inch long. 

 Larvae hatch from eggs laid on the midrib of leaf, and 

 tunnel through the leaf. These galleries turn brown, 

 giving the leaves the appearance of having been nipped 

 by frost. The beetles eat holes in the leaf. 



Agrilus Viridis. Beetle J inch long, bluish-green, 

 metallic colour. Eggs laid near bottom of young trees. 

 Larvae feed for two years on the cambium, often killing 

 the young plants. Also attacks Oak. 



Plants attacked should be pulled up and burned before 

 beetles hatch in June. 



Moths. 



Orgyia Pudibunda (Pale Tussock Moth). Commonly 

 called " Hop- dog." Female moth about 2 inches across 

 wings, which are brownish or greyish-white, with a 

 darker brown stripe across them, fainter on the hindwings 

 than on the front ones. Caterpillar pale green, with three 

 bands of velvety black round its body, with four yellowish 

 tufts of hair upon its back and another near its tail. One 

 of our prettiest caterpillars. They hatch from eggs laid 

 about 10 or 12 feet from the ground, and feed upon the 

 foliage in July, August, and September. The trees 

 attacked should be grease-banded about 15 feet up, to 

 prevent the caterpillars going up the stem to feed. 



